SMS CONTROLLER

G    GSM network parameters

The most right red LED at box position (54) shows that the SIM is registered to the GSM network when it is flashing with a brief flash at two second rate. If not lighting at all or each second briefly, the system can not receive nor send SMS message or call. Use then the internet if connected to or the serial link to PC if not. Always hold the SIM cart by the plastic edges and not the contacts.

    The reason could be one of these:
    SIM is not in the right socket, the system takes S1 by default also on two-SIM controllers (see command SIM 1 below)
    SIM does not make good contact in the socket! If clean, try to slide the SIM a half mm up and down in the closed socket
    SIM is dirty. Do not put fingers on the SIM or sockect contacts. SIM and holder can be gently cleaned with 90° alcohol
    Use a normal cell phone to remove SIM code and test the SIM. The most simple SIM with no 3/4G will work

Command [Code G?] will show the following parameters:

Pw SIM 1            SIM mode 1(defaut) selected with [Pw SIM 1]
Mode=1 Used=1       Selected mode and the one actually used
0,1,2,3(1+2)        Possible modes. 0, 1, 2 ou 3(two together)
Fg restart GSM radio! [0000 fg] reset and reconnect to network
Fe Emergency Stop! [0000 fe] Stop radio immediately!
Ant: 36%            Rx Antenna signal. < 12% become very low!
OP: KPN MOBILE      Name of actual connected cellular operator
IMEI: 563031015145201 International Mobile Equipment Identity
V0: 4364            Voltage on GSM radio module (millivolt)
T0: 33             Internal contrôleur temperature, °Celcius

When the list is incomplete use command [0000 G+] that will first make reload the parameters before sending the above message.

Mode SIM 0 will make the GXL88 controller to work without GSM connectivity. So SIM cards (also inserted) are ignored and all related GSM issues are discarded. This option will be useful when the controller is used to regulate some local systems that do not require external control or commands. When wanted, internet or PC serial connectivity is still available in mode SIM 0.
Regarding the possibilities, this controller is also a programmable control computer at very fair and competitive price!

Please note carefully that sending the command [Pw SIM 0] to the controller via SMS enables the SIM mode 0 and will consequently be the last SMS command received via SMS. So if the internet mode (if available) is not enabled before by [0000 i on] the controller will only be locally accessible via the serial link to the PC.
[Pw SIM x fg] where x can be 1, 2 or 3, sent from internet PC via serial or internet will re-enable GSM communication when possible.

Mode SIM 1 is for SIM holder at S1 and Mode Sim 2 for S2. Select preferably SIM1 at S1 for controller having two SIM holders when only one SIM will be used as in most cases.
So command [0000 sim 1] enables SIM 1 usage and of course its SIM voice call number! SIM mode 2 will be configured when SIM holder S1 is bad or dirty. SIM 1 or 2 work both the same and SIM 3 makes use the first SIM available to connect to the GSM network.

H H:M setting for time related functions.

To set the controller software and hardware Real Time Clock (needed for all related Time functions) at 14:49, use [Pw H 14:49]. The clock can be adjusted before or after any other command. Like here with [Pw H 12:14 R1 Off s]
The software clock also tells about unexpected system resets. Watchdog and control procedures will automatically reset and restart the GXL88 microcontroller on fatal software errors. By default and as control, a Status SMS is sent to number N1 3mn after power on or initialize when no command is received within those 3 minutes.
When the time shown in the status is at 00:03, a system restart is notified! After that, the software clock will synchronize with the hardware real time clock and automatically be set to the right time if parameter Hc is left at 0 and if no power interruption has occured.

SMS [Pw h?] to GXL88 lists all time related function settings.

Pw H 05:38 Actual controller time set by [Pw H HH:MM]
Hs1 3 12:15      Status to N3 at 12H15 once a day
Hs2 1 00:10    Status to N1 at xx:10 each hour
Hsm 0 mn         Repetitive status time synchrone to Hs1 N
Hss 0 sec        Repetitive status SE at sec to HS2 N1 number
He1 6 00:00      Energy SE to N6. Répetitive (00:MM) or at HH:MM
HeM 22 mn        Energy status SE to N6. Répetitive on 22mn
HeS 800 sec      Energy status SE to N6. Répetitive on 800sec
HL 00:00        Status to serial at HH:MM
HrA 4 08:30 20:13 R4 ON at 8H30 off at 20:13
HrB 5 22:45 07:03 R5 ON at 22:45, stop at 07H03
Hc 0 Hg 15       Clock ±s in Mode SIM 0. GSM test time

Status message sent from the function H will show its source as hs1, hsm, etc, at Hxx after the controller time line (see at s?).

[Pw Hs1 Nn 12:15] Will force a Status SMS to Nn (that can be 1 to 35), each day, at 12:15. [Pw Hs2 30 01:30] will send a second status message to N30 at given time, so here each night after midnight at 1 hour and 30 minuts. Both cases need a valid number at position pointed numbers list position.This will give a good daily control of the system.
[Code HS1 2 00:15] make the status to number N2 each hour at minutes =15. This simply because the HH field is left equal to zero! Hs2 can do the same and both functions can be used simultaneously to get two status messages per hour.
So command [Code HS1 1 00:15 hs2 1 00:45] could make send two status messages each hour to N1.

Status SMS are sent synchronized to the minutes of the time with Hsm function. Hsm uses the Number programmed at Hs1.
[Pw Hsm 11] sends a status SMS at xx:11 , xx:22, xx:33, xx:44 and xx:55 at number written at Hs1.
[Pw Hsm 25] sends a status SMS at xx:25 and xx:50 also at number programmed at HS1. (Hsm >2 <59mn)

Hss force sends status at Hss programmed interval value to the number pointed by HS2 N in the number list.
So command [Pw Hs2 25 00:00 Hss 600] will send the status at number found at position 25 in number list. This on the 10 mn here, but programmable from 1 to 65000sec. Writing 0 at "25" or "600" stops the function Hss and Hs2 will be ignored because 00:00 is invalid.
An interesting option for Hss will also be the possibility to send the status "ss" from V1. Status [s] form R1 is sent if value sec of hss is even and status [ss] from V1 if odd. Please see [s] and [ss] again above about the status messages.

[Password HE1 6 15:31] force reads the Power Meter and then sends an Energy Status SMS [SE] to Number 6 in list. In this example every day at 15:31. If field HH of HsE is zero, only the minutes are worked out and the [Se] status will be sent out once each hour at MM = Minute of the controller enabled time clock.
So [Pw HSE 8 00:35] makes send each hour at midnight and 35 minutes to number written in the phone book(number list) at position 8. (See at bottom the functions expert for the commands [Se], [Sx ]and [Si] to the controller making it read/setting the Power Meter.

Hem has the same synchron functionality as Hsm above. However the differences are that the message will be an Energie status [SE] and that it will be sent to the numbers indicated by HE1. See at Hsm for He1 same timing). Parameters Hsm and Hem can be programmed with a value >2mn and < to 59mn.

Command [Hra 2 14:15 14:30] will make switch R2 output at 14:15 On, and then switches Off at 14:30 everyday. Function HRB has the same functionality and here also could be used simultaneously on the same relais output to get more switching times.
So [Code HrA 1 00:15 08:45 HrB 1 14:00 17:15 h] could make switch same relais N1 at different times.
See also the function "Klignoteur" that can switch very short time on big delays.

Hc is a clock correction parameter that can be used to tune the software clock only. If one thinks that the clock is too fast with 2s every days, the command [Pw Hc -2] can be used. For 4s a day too slow, use command [Pw Hc 4].
Parameter Hc can better be left to 0 (zero) when the SIM mode parameter is not zero, so that the software clock will automatically synchronize with the Real Time Clock that does not require any correction.
The hardware RTC is ignored while in SIM mode 0 and only the software clock will then be used, no matter the Hc parameter value. The default setting of Hc is 0 and SIM is 1. (see G? for the different SIM modes).
Whatever the H parameters settings are, the Clock(s) can always be set to the wanted time when adding [ H HH:MM ] before or after an other command sent to the controller. Care should be taken so that here too, the command that makes return an answer is the last in the command line. So for example here; [Password N4 020452444 R1 Off H 17:51 ss].

The hardware RTC will normally take its power from inputs: BATT V1(31), ADAPTOR VS(29) and L3/V3 at position (37) of the box. As for some customer's needs, a CR2032 3V lithium battery can be inserted in the internal and optional receptor in order to move the controller without losing the HH:MM time.

Hg tells at which rate the GSM network connection control is done. Here at 11 and synchronous to the minute. Hg can best be left to this default value, but users can change it when wanted with [Pw Hg MM].
Finally for menu H, any number index left at 0 or pointing to N33 will make the function use GPRS and not SMS when transmitting the corresponding message at programmed H timings. Please see the functions expert file for details!

I Configuration and internet accès. [Pw i?] for details.

Quicker and easier than with only SMS the GXL88 can be advantageously controlled via internet. Almost all the fonctions, parameters and settings are then visible on one single computer screen and the system can work simultaneously via internet and SMS via mobile phones.

For example, access from the internet will occur with a browser or an internet navigator and an address like the following one will be written in the address bar: http://53.123.234.50:1425/Page_Name
1425 is the assigned PORT and Page_Name (optional) is the name of the page to be displayed. Both parameters are chosen by the user. So a fixed IP address is strongly recommanded because of course, the address where to connect must be known in order to access the controller via internet.
The default port is generally 1425 if allready set in the M53 internet module. It can be readed when using ez-manager.
If the Page_Name is programmed, visible with command [0000 i] to the controller, just use it after the /

The GXL88 internally generates the page to be shown on the navigator of your choice. This because no program nor application needs to be installed to view the controller on any machine from anywhere. Here's a snapshot of the PC or mobile screen.
Developments were made with Firefox, SeeMonkey and Safari, but all navigators can be used with more or less ease (even the old Netscape!).

It is advised to ensure that the GSM SMS traffic with the controller works before changing the settings i via internet. If access through the Internet became impossible because of unforeseen or simply because a wrong configuration command is sent, an SMS command could easily restore the internet configuration if SMS communication works.

The built-in internet module will first be configured through the ez-manager that can view the parameters and change the settings. The program can be found here: ez-manager. See also the web module documentation and a copy of the three standard configuration windows 1, 2 et 3.

Exmanager will show the LAN (=local) address assigned by the router. Force the router allways assign the same local address so that you allways can acces the controller locally. Type the the local address in your brouser: http://192.168.178.40:1453

[Code
i]
makes list the internet settings of the controller: 



iCA 88.160.241.20:1425  GXL88 IP address and PORT after the ":" *

 iSA
www.nnnn.com/name   Address
where GXL88 connect in client mode

 iPN
Page_Name           Name of the GXL88 internal internet page

iSL
no_name            
GXL88 User name in client mode

iSW
no_pass            
Acces Password in client mode

iPR
0                  
Optional, page auto-refresh
(reload xx)

iPT
0                  
To server connection Timeout

2x<32
3x<16 >10s >5s    Parameters length from ICA to IPT

iPB
7                  
GXL <=> M53 communication. 7=57600 default

I ON  
         Tell if internet active
ON or i1 or OFF ex:[Pw i on]

Optional parameter Internet Controller Address will be assigned with the GXL88 internal internet module IP address when installed. This address, for example to http://53.123.234.50:1453, is the one to write into your browser address bar to get access to the graphic representation of the system and therefore, also be able to control it via the command line. This address will be readable at the router settings.

The Internet Controller Address parameter will be mostly used by the [Reload sec] command. So if ICA is not yet configured, just fill the address at the brouwser address bar and use the [Send] button even with an empty command line! [Send] only uses the address bar as a destination.
As example and to set it via SMS [0000 ica 53.123.234.50:1425 i] The i will make you receive a control SMS back with the list i?. * ICA parameter is only needed for the navigator screen (bottom right) command " Reload 0 ".

iSA (optional) is the server address where the controller needs to connect to drop its measures or states when the internet module AND the controller are both configured in the client mode. This mode is simply the inverse of the normal mode where the controller server is interrogated by the browser as a client . The principle is the same as the GPRS mode that passes through the GSM network, but using the router and the Internet connection.
If necessary, an iSL identification name and iSW password can be configured to access the server. iPT will be the allowed time waiting for the connection to the server, before dropping or cancelling the transaction (Not used in mode i1 or i ON).

IPN (optional) the "Page_Name" listed at above commande i is of real importance but still optional. It is the name of the internet page generated and sent by the GXL88 controller to your navigator screen.
Added to IP:Port/Page_Name all together makes the unique address where to connect to your controller. This page name, optional, will be "Page_Name" or "GXL88" by default if allready programmed (to check with command [0000 i]). Do not include any space in the name and use 15 alphanumeric characters maximum. The controller does differentiate lower and upper cases in "Page_Name", so it needs to be exactly spelled.

To remove the page name, send command [0000 ipn ] and note here the standard space following the command name, but especially the second one effectively deleting the page name. This to check within the i? message received after command [0000 i] to the controller.
With none or deleted page name address just use IP:Port like; http://53.123.244.50:1425 to access the controller or from V2-17, http://53.123.244.50:1425/-0000 ss to get a SMS like text back on your screen (see below #)

iPR may on some browsers automatically reload the page eg [0000 ipr 30] could refresh the page every 30 seconds. The parameter values will be displayed in the lower right just next to "Reload" which is 0 (zero) by default. Do not program it to too low, the minimum being about 10 for internet and less only on Local Area Network.
If by this method the connection has not been established, a blank page will be the result! Use then your browser back button to return to the last displayed page again and increase the value of the reload parameter IPR. However, it can best be left to 0 (zero) until we get used to the sometimes unexpected reactions of browser, controller and internet. Act calmly and do not click too fast and repeatedly on the reload or send button, because the internet and especially the controller need some time to do any command, especially when it is busy with the GSM traffic.

iPB is the "baud rate" parameter and sets the communication speeds between the controller microcontroller and the internet IP module. IPB 47 will be configured for a slow internet connection [Pw ipb 47] (9600B/s). The second [Pw IPB 7] (57K6) is the default setting and is the one to use for common ADSL connections. Finally [Pw ipb 3] (115K2) can be used, but does not always give good results via internet but can be used on LAN.
In all 3 cases we will locally configure the (M53 or else) Ip module via LAN first with ezmanager at tab "Serial Port / Baudrate" and after that parameter iPB via SMS or PC. Make sure in any case that the SMS mode or PC mode is working in order to restore configurations that could unintentionally be altered.
Small difference: Try to connect with bad IP:port will return "site not found " and with correct IP:port but bad page name will return "connection reset".
The UTP, RJ45, network cable or whatever we call it, will be connected to the controller RJ45 connector that accepts and automatically detects both marked as crossover or patch, straight cable.
The LEDs of the RJ45 connector tells about the connection state to the router and shows an active connection. Amongst others, continuous green and yellow intermittent lighting means logged / recorded to the router. If both LEDs, green and yellow, stay lighted without intermittence, this means the connection is Active. Disconnect the cable and reconnect for a few seconds observing the LEDs which then also indicate the offline state and reconnect...

The web interface gives almost everything visible on a single screen at once and passing the mousse through a field adds more info at the tooltips. Nevertheless, some time will be necessary to get used to all the shown information. Easy enough, the command line will accept exactly the same syntax as the SMS or PC commands.
As seen above, pressing "Reload 0" requires the correct definition of the parameters iCA and optionally IPN. Button "Send" even with an empty command line will use the browser's address bar.
If the PMC is connected, the measurements will be updated after having reloaded the page with the "Reload" and not by the command "Send" unless of course the order is precisely Se, Sx or Si. The PMC is visible on the screen if ACM > 0 and its i/o if ACi >0. See the functions expert.

Internet and PC mode can not be used simultaneously on the GXL88. To resume the PC mode command [0000 i off] must be sent from the internet or SMS to the controller. The [0000 i on] sent by SMS or PC restore the internet mode. Make sure the controller is still accessible via SMS in order to unlock an unexpected situation especially when the manipulations are done remotely from far.

If necessary the optional Internet module (24x20mm only) will be plugged at its place in the controller. Be very careful to the insertion direction and notice the white dot on the top left side of the module and also on the controller board. This and other manipulations must be done with non-powered controller. Connecting the controller to the router via UTP cable makes this last automatically assign a local IP address to the controller internet module (DHCP) so that it will then be also accessible from the LAN with http:// Lanipadress:port/Page_Name.
The internet module assigned PORT, here 1425 for example via ezmanager must also be assigned in the router to be able to access the controleur from outside via internet with an address like: http://WEBipAddress/PORT/Page_name. See therefore the function port forwarding in your router.
To limit the supply power and consequently the controller's internal temperature, shown at T0 in menu G?, do not plug in the network module or, if it is already installed, unplug it when the internet is not going to be used on the controller. This module is not required when no LAN or Internet will ever be connected. Set also the internet parameter to Off via command [0000 i off] to the GXL88.

# A new function has been added from version V2-17 in order to solve differents cases of internet connection which will not give a correct graphic representation of the controller (like on ships with internet via satelite). We will then be able to directly use the address bar in command mode like http://WEBipAdresse/PORT/-Code (cmd) So for example http://53.123.244.50:1425/-0000 ss will make return the extanded status directly on the screen.
So if of course the internet function is active see [Code i on], writing ip/port/-0000 cmd i in the address bar will return the menu i after having executing the command(cmd). This on the screen itself via internet independament of sim mode. All commands are allowed and a sim is not required if the internet connection is stable. Graphical and/or textual representations can even be used together.
The -code (cmd) replaces the Page_name if there were any and is written after the /. Know that if the Internet is cut (or code i off) and the controller is in SIM 0 mode, it will only be accessible by the PC via its serial jack. Anyway, the Internet modes or PC and GSM are all compatible and both can work simultaneously (thus not the Internet mode and PC serial!). One can even restart the gsm connectivity in mode sim 0 with the command " Fg " (see F?) Or for more safety use the Internet mode with a sim with controller in SIM mode >0.

For Vn, Tn and Zn, a Warning can be sent, because all can have junctions with Low/High thresholds and also (< / >) inferior and superior edge points configured at which they can send Alerts. Both thresholds Low / High must of course be configured to different chosen values and generally with the alert (< / >) beyond the Low/High thresholds of the junction.

Alerts are messages sent when the programmed values for < (Low) and > (High) edges or thresholds are exceeded. They are simply setup with the function name followed by the < and > parameters. So for the V1 example following, <11 and >14 volt, [0000 V1 11 14].
Same for Vn, Tn and Zn that all can send alerts. A received Alert SMS start with a)

Warning messages are optionally sent by the Junction functions (see just below) that can switch any output from almost any input. Warning will simply notify of a junction action when wanted, to any number on the number list N. A received Warning SMS will start with w)
Notice that the GXL88 SMS controller is able to sent both a Warning and an Alert message for the same event. This at same or different measured and programmed values.

The Alarm function, when activated with A=On, O+ or by the optionally connected switch "button" will send an Alarm SMS message.
Alarm messages start with; !ALARM!

So, and not to be confused at controller setup, beside status, infos and configuration messages received on request, we can get three kind of messages from the controller. Warnings, Alerts and Alarms.

Important to consider for a)lert and w)arning, when the thresholds, edges or trip values programmed at fields {JON} and {JOFF} of a Junction in order to automatically regulate a system (load, temperature, or other) and when a malfunction occurs, an alert will be sent when the alert thresholds < and > are configured beyond the threshold of the {junction}.

Please continue with the special functions by functionality ranking here below or go back to the basic functions list.

J Junctions. Ji1 to Ji8 / L0,1,2,3 / JV1,2,3,S / JT1,2 / JZ1,Z2 and Z3

The "Junction" functions give you the possibility to link any input(s) or any event (Voltage, Temperature, Level changes and others) to any one or more output(s). These Junctions, soft but physical, add the "extended" functionality and flexibility of the GXL88 controller.
The most simple one for example, can switch an output relais On, Off or for a time lapse, depending on an Ain and/or a Ln input change, and others can force one or more output actions and optionally send a warning at programmables Vn, Tn, Zn threshold or edges values.

[Pw J?] returns an SMS that shortly explains the principles, [Pw JL] lists the active Junctions parameters, [Pw Js] lists the junction input delays for Ji1 to JL3 that uses seconds, and [Pw Jm] the unlock parameter for JV1 to JZ3 that use minutes. [Pw JnnFx] forces execution!

A basic Junction has 5 fields: [{Jnn} {JON} {JOFF} {JR} {JN}]

{Jnn} The name of the junction Ji5, JV1, JL3, JT1, JZ2,,,

{JON} Says what to do with {JR} if {JON} goes to level 1, On or Low

{JOFF} What to do with {JR} if {JOFF} goes to level 0, OFF or High

{JR} The Relais R1 to R8 to be eventually switched ON or OFF

{JN} To which number (1 to 35) send the optional w)arning

We speak of 1/0 for inputs Ai1 to Ai8, On/Off for inputs L0, L1, L2, L3
and LOW and HIGH for the inputs from V1,2,3,s, T1,2 and Z1,2,3.

[Pw JL] lists active Junction parameters (values are examples).

J On/Off R N  
     {JON}
{JOFF} {JR} {JN}

i1 0 0 1 3
         Input Ai1, R1 Off on any change warning
to N3

i7 0 0 0
1          Only Warning
 to N1 when Ai7 changes level

L2 -1 1 1 0
        No R1 change when L2 On; R1 ON when L2 to Off 

V1 11.0 13.0 4 5   
R4 On If BATT <11,
Off If >13, Warning
to N5 

VS 1 1 0 4
         Grid ADAPTOR, warning to N4, no switching
R=0

T1 19.0 21.4 3
0    Temp. R3 On If <19,
Off If >21.4, no Warning

T2 3.0 38.0 3 1
    Temperature Warning if below 3° and above 38°

Z1 5.0% 95.0% 4
33  Tank
Level R4 On <5%, Off >95%, Warning
to N33


Pw
JLL             
Only
active listed, use JLL if more to
list!



Jn
s s R N          [Pw JLL] starts the listing SMS from
J10=JL1

L2 -1 1 1 0
        From Ai1 to L3 {-1}=No R change. 1 is
just ON 

V1
11.0 13.0 5 0   
Only R5 switches on treshold, no Warning
if 0

T1
29.0 22.0 3 0
   {Inverted} keep cool with R3, No Warning!

T2
-15.0 -10.0 3 0 
Relais R3 On if <-15 and Off when >-10, no w)

Z1
5.0% 95.0% 14 0  R4 OFF if <5%, ON >95%.
R=Not R if offset 10!

Z2
45.0% 66.0% 12 0 R2 OFF if <45%, ON
>66%. R12 = R2 inverted

Z3 3.3 99.9 0
0     No switching no warnings, values are
idles 

Ji1-Ji8. As an example, the junction command [Pw Ji3 1 0 4 2] to the controller will set the output relay R4 On when the level of input Ai3 rises from Low GND to High level, it will stop it when passing High to Low again, and in both cases it will send an SMS warning to the number programmed at N2 in the number list. See Js below if a delay is needed before Ai3 changes trigger the junction.
If the alarm function is active (when A On or O+) on Ai1 to Ai8 inputs and an !ALARM! message is not wanted together with an input junction, simply reset the input delay to zero. So here [Pw A3 0] disables the alarm for Ai3, but leaves junction Ai3 active.

[Pw Ji3 600 0 4 0] makes set R4 On for 10 mn for Ai3 to High and stops when Ai3 go Low again. No SMS
[Pw Ji3 0 10 2 0] makes reset R2 to OFF when Ai3 goes to High and sets it On for 10 sec if low. No SMS
[Pw Ji8 -1 -1 4 10 Ji8s 0 180 N10 <NumberAtN10] will only make send a warning to number N10 in list when input Ai8 goes to Low level for 3nm minimum.
R4 will not be switched because for the first 12 junctions from Ji1 to JL3, -1 specifies no output change!

Another example to try. If we configure Ji5 and change input Ai5 to an output (with A5 to zero see R?) with command [0000 ji5 1 0 3 0 a5 0 r5 0] any change on R5 will be copied on R3.

From any {Jnn} Ji1 to Ji8 and L0 to L3 fields {JON(input goes from 0 to 1)} and {JOFF(input goes from 1 to 0)} are both capable to switch an output {JR} ON or OFF because of a corresponding {Jnn} input level change.

From Ji1 to JL3, field {JON} says what to do with {JR} when {Jnn} goes from 0 to 1 and to ON for JLn.
From Ji1 to JL3, field {JOFF} says what to do with {JR} when {Jnn} goes from 1 to 0 and to OFF for JLn.
        We can also speak of ON / 1 and OFF / 0 for L0, L1, L2 and L3.

So the two {JON} and {JOFF} fields will have 1 of the 4 the commutation commands.
        -Switched On if {1} or for a time lapse {On up to 65K5 sec}.
        -Left unchanged when {-1} and switched Off if field say {0}.

Command [Pw JVS 10.0 11.0 3 17] for example will configure the JVS junction. {R3} will be set ON by power failure and stopped when the line voltage returns, that will give 12V again on VS via the ADAPTOR. Warning is sent in both cases to the number at N17 in the list.
For this, the output of the delivered adaptor 240VAC to 12VDC will be connected at VS / ADAPTOR input ( 29+ ) and ( 30- ) and plugged in the main grid power.

Junctions Ji1 to JL3 also have configurable input delays for both 1/ON or 0/OFF level changes.
So as an example, we want to wait 30 seconds before turning on a generator running via R3 in the event of a grid power failure (off) and wait 2 minutes before stop after the grid wall power is restored (On). We will use L1 input connected with 12V positive at (35) and negative at any GND common connection and junction JL1. Vs already having ADAPTOR connected could do exactly same with junction JVS.

We configure separatly or all at once the delays, junction, stop JVS and write number if a warning is wanted:

[Pw JL1S 120 30 JL1 0 1 3 8 JVS 10.0 11.0 0 0 N8 YourMobileNumber] with, as always, 1 space character to separate all the command fields.

JS INPUT DELAYS are programmed in seconds

[Pw JS] shows delays for junctions Ai1 to Ai8 and JL0 to JL3.

0-1
1-0      Level change at input (0 to 1) (1 to 0)  

i1 5 0 
     INPUT Delay de 5 sec for 0 to 1.

i2 0 180
    3mn before execution of Ji2 when 1 to 0.

i3 0 0       0 0
no Input delay...

i4 240 60    Ji4, 4mn for Low
to High, 1mn High To Low 

i5 0
0       

i6 0
0       (0 to 1) and (1 to 0) for
Ji1 to Ji8

i7 0
0       also(Off to ON) (On to Off) for L0 to L3

i8 0
0             
 

L0 0 0      
Internal,
reserved for now

L1 120 30
   120s when to ON and 30s  for L1 to Off 

L2 180 0  
   Wait 3mn
before JL2 execute when L2 OFF to ON

L3 0 100
    0= no delay. 100s before execute
L3 On to OFF 

Pw JnnS S
S  JnnS use SECONDS 0 to 250!

For example, command [Pw JL1 -1 3600 1 10 JL1S 0 40] could set up a junction between L1 input and R1 that will activate the relay for an hour and send a warning to N10 in the number list, when the voltage disappears from the input L1 for at least 40s .

While (as seen above), the fields {JON} and {JOFF} of Ji1 to Ji8 and L0 to L3 indicate what to do with outputs when Jnn simply changes level 0/1 or ON/OFF, for JV1 to JVS, JT1 / 2 and JZ1 to JZ3 they will indicate the threshold or edges value at which the output will be switched.

Therefore from JV1 to JZ3 , Junction fields:
{JON} is the LOW threshold value who will command the output {JR} ON
{JOFF} the HIGH threshold value above which {JR} will be switched OFF

So, in a JV1 to Z3 junction, an Output {JR} can switch ON when the input becomes LOWER than {JON} and switch OFF when becoming HIGHER than {JOFF}, both programmed threshold or edge parameters.
Like above, none of the fields are mandatory. Furthermore and as shown below, the threshold values for {JON} and {JOFF} can simply be inverted as well as the {JR} cycle. From JV1 to JZ3 and Unlock timing, that will reforce the junction, can be setup.

[Pw JV1 11.6 14.1 3 0] as example enables a Junction between the voltmeter V1 BATT (31) and output R3. So when the battery voltage becomes lower than 11.6 Volt, output {R3} is switched ON and above 14.1 Volt it is switched OFF.
This junction can give a simple but effective charge control on the outputs {Rn} , which are all equipped with a relay of 10 Ampères. No warning is needed, so {JN} is left at zero value or else, {JN} will point to the number position of the list where to send the warning...

(Password {JT1} {LOW_Temperature} {HIGH_Temperature} {JR} {JN}
This can setup a heater junction between the (delivered) Thermometer sensors T1 and an output {JR}. This gives a simple thermostatic control on T1(39) and/or T2(47) no warning will be needed, but the function Tn < > can be set to gives anomalies alert (see T?}...
Thus, here as an example the command: [Pw Jt1 18.5 20.5 3 0 T1 15.5 23.3]

[Pw JZ1 5 95 0 11] Can make send a warning at N11 if lower than 5% and higher than 95% level (no JR).
[Pw JZ2 10 90 2 0] Can start a pump on R2 below 5%, fill the tank to 90% and stop (no warning JN=0).
[Pw JZ3 5 95 12 18] Can make switch a pump to empty the tank when above 95% and send a warning to the number at N18. R2 will stop the pump when the level comes below 5%. Note here that the field {JR} has an offset 10 so that the commutation cycle is inverted.

[Pw JT2 32 22 4 0] R4 ON above 32°C and stop below 22°C. This could be used for some cooling device which is the opposite to the T1 heater junction just above. So {JON} and {JOFF} can also be inverted!
[Pw JZ3 45 70 0 25] There is no switching when {JR}=0), only a warning for above 70% because N25 is ">NUMBER". As seen before at N? , when a number is preceded by < or > it will only send for an Off/0/Low or On/1/High event.

[0000 JV2 47 56 2 0 V2 46 58] configures a junction between input V2 and output R2. If the voltage V2 decreases below the setting of {JON} (47V) at input V2 (33), R2 is then switched to ON and on the other hand it will be swiched OFF when the voltage at the input increases above the setting of {JOFF} ( 56V). No warning is needed here when just switching a charger On and Off.
If the charger does not work well (or that othetors also order switch R2) and that the voltage drops < 46V or rises > 58V, an Alert will be sent to N1 (and to a second number depending on parameter V1N) by the V1 < > fonction. This gives a good control of the charger and the output...

A Junction Warning SMS message will look like:

w) Z1/GL(43)      Shows Z1 alias, here GL for Gauge Level
HIGH = 80.1     w) for warning. Actual measured value
Ai: 11111101      This line only when i1 to i8 junction
JUNCTION JZ1    Specifies JUNCTION not a)lert or !Alarm!
10.0 80.0 2 0* Actual jz1 junction settings. (*see below)
SH110 OIL Probe   Name of the FUNCTION (not the alias)
JnnS 10 20        Optional sec. junction delay if i1 to L3
JZ1M 1          Optional Mn junction delay if V1 to Z3
R2(on)=OFF        Output R's previous state and now switched
for: 5s           For how long, if timing value, when I1 to L3
Use Pw s, J?, JL Suggests commands related to Junction
07:10 Amsterdam   Controller time at warning and name/location

Or for junction Ji4 for example:

w) PORTE d'ENTREE   A/i4(24) =1    Ai: 11111101   JUNCTION Ji4
0 0 0 1             Ji4S 5 5       R0(off)=OFF    etc...

Or for Junction JVS Voltage Supply at ADAPTOR:

w) VS/adap(29) LOW = 6.8 JUNCTION JVS 7.5 11.5 2 1
WAS GXL83x AC JVSM 0 R2(off)=ON etc...

Junction field {JR} can first make switch an output and field {JN} vectors/points to the position where to find the number to send the optional w)arning (see N?). But when a command and not a number is written there, a following local command can be executed.
So if the above example says 24 and not 0* at {JN} and we programme N24 with [Pw N24 =R4 180 s+31], junction JZ1 will first switch R2 OFF(bcs >80%), R4 for 180 seconds (cmd at N24) and finally make send a status ss to number N1 after 31 seconds. So one trigger can switch more than one output.

JM Unlock timing can be setup for junction JV1 to JZ3.

Unlock timing is programmed in minutes and is accounted for both {Low} and {High} Input level event. Unlock timing can force a junction to trigger again and again after 0 to 250 minutes if the previous junction action did not change anything and when the Low-High threshold values are still outside de programmed working window, which is of course between de {Low} and {High} thresholds. When left unused (JnnM 0), the junction normally executes once passing the programmed triggering level values (threshold) {Low} and/or {High}.
So in case we want to switch a pump that begins to fill a tank at 5%, stops it at 95% level and receive a warning on N18 when doing so, we will program a junction with [Pw JZn 5 95 3 18 JZnM 10 N18 NumberToWarn] where n is Z1, 2 or 3 and 10 is the wanted Unlock delay written in minutes.

The above JZnM settings will reforce the JZn Junction each following 10 minutes. Try to start the pump again and warn N18 again ONLY if the level is still below 5% AND that there is a real R3 switching (because R3 was switched off for whatever reason).
On the contrary, if the tank is still above 95%, R3 will be checked again every 10 mn and the junction will do nothing if R3 is OFF. If not, R3 will be switched Off and a warning will be sent again.
For even more security we could also setup the Zn < > function outside the junction edges like 4% and 96% and get an Alert message when the level exceeds these alert limits. To setup an Alert, use [Pw Zn 4 96] as an example.
Remember that junctions send warnings and < > functions send Alerts,

[Pw Jm] lists the junction Unlock delays for JV1 to JZ3.

nn Mm    Name / Minutes. Same delay for {JON} and {JOFF}
V1 0         Unlock delay for JV1 (31)+ Batt 12V
V2 5         For JV2(33)± voltmeter to ±90V Direct current!
V3 0         For JV3(37)+ (Second batterie input? or L3)
VS 0         For JVS. Adaptor 240/12Vdv at (29)+ and (30)-
T1 5         Unlock delay for JT1 at (39)T (signal)
Z1 10        Unlock delay for JZ1 (gauge / Thermo / Volt etc)
Z2 0         Unlock delay for JZ2 (gauge / Thermo / Volt etc)
Z3 1        for JZ3 (gauge / Thermo etc).. See also Z?
JnnM MMM     JnnM USE MINUTES 0 to 250!

The use of the PC program or, even better, via LAN will make a simulation + evaluation of several combinations much easier.

Added Options for junctions switching.

Two software junctions J21 and J22 were added to the Junctions 1(Ji1) to 20(JZ3). Any of the 20 first junctions can have the {JN} field offset by a value of 100, so that they do not vector anymore to the number list, but to another junction. Any junction having field {JN} at 121 or 122 will point to these software junctions J21 and J22 that are not connected to an output like the others...
These two junctions, J20 and J21 are configurable just the same way as the 12 first ones and can have {JON} and {JOFF} at -1 for no change, 0 for OFF, 1 for ON and SEC for seconds Timing, both fields telling what to do with field {JR}.

Any junction trigger can make execute another junction by simply jumping to it when the {JN} vector is in range of 101 to 122 and so also to an used or unused one (command JL will show which junctions are active)!
A repetitive action as when a junction points to itself will escape after 5 times. To make it easy, please try the basic one step Junctions at first...

In this example we configure JLn where n can be 0 to 3 with a 12V ADAPTOR connected to it.

[Pw jlns 0 60]  
   Waits 1mn delay for
input ON to Off

[Pw jLn 0 1 2 121]  R2 OFF
if Ln On, ON if Ln to Off. Next J21 

[Pw j21 -1
30 4 18] Next: R4 ON 30s when Ln to Off, Warn N18



Fields {JON} and
{JOFF} to -1 always discard
any action on {JR}and thus, as here above, if Ln goes from Off to ON
{JON} will keep R4 as it was. To make it also switch when Ln goes from Off to
ON just fill in field {JON}else than -1. The junction warning
is sent by last {JN} if
not 0.

************************************************************************************************
Un champs {JON} ou {JOFF} à -1 annule toute action sur {JR} et que donc ici, Ln à ON laissera R4 inchangé. Pour également avoir une action sur {JR} quand Ln passe de Off à On, remplir le champ {JON} différent de -1. L'avertissement est envoyé par la dernière jonction si {JN} n'est pas 0.

Donc l'exemple suivant:
[0000 Jv1 11 13 2 121 j21 600 -1 1 122 J22 0 0 3 1 jl]

Fera enclencher R2 quand la tension à l'entrée B1/V1(31) descendra au dessous de 11 Volt, mettre R1 en marche pour 10mn et eteindra R3 au cas ou il serait enclenché.
R2 s'arrête si V1 monte à plus de 13 volt R1 n'est pas changé (à cause du -1) et R3 s'éteindra au cas ou il était enclenché.
Notez que l'action de passer à 13 Volt débloque la limite basse de jV1 qui pourra de fait à nouveau fonctionner.
************************************************************************************************

JnnF1 JnnF0 Force/test the junction execution.

To control the configuration performed on the junction, it is possible to force their execution by simulating a change. We first take the most simple junction example and configure the junction Ji4 with [0000 Ji4 0 0 0 1] so to get a warning to N1 for any input change 0 or 1 of Ai4. Now we can force execution by simulating 0 level on Ai4 with command [0000 Ji4F0] or level 1 with [0000 Ji4F1].
For Ji1 to Ji8 the simulation works both directions 0 or 1 independently of the input level or its corresponding Js delay. For the other, the junction condition needs to be true and the junction should have already worked.

So for [Pw Ji2 0 1 2 1], command [Pw Ji2F0] simulates a low level 0/GND at Ai2 input and so forces junction Ji2 to switch R2 On. When not, it is already On of course. On the contrary, command [Pw Ji2F1] will force junction Ji2 to stop relay R2, because fields {JON } = 0 which means Off or 0.
So here again clearly, 1 at the input activates the field {JON} and 0 activates the field {JOFF} of the junction function.

For JV1 to JZ3, JnnF1 activates field {JON} and JnnF0 activates field {JOFF}. To simulate the junction VS, the voltmeter at box input (29)+ (30)-, send JVSF1 or JVSF0. If, of course, the junction has already been configured as for example like [JVS 9.9 11.1 0 1].

K Interval timing on Rn. [Pw I?] gives the details.

One of the four relay Rn outputs can be used as a flashing, Klignoteur in Flemish and Dutch (the GXLxx were designed in The Netherlands). One of the 4 Ai5 to AI8 inputs can also be used when the input is configured as an output. See therefore at menu R.

[Pw K3 40 3600] turns on the R3 output for 40 seconds , stops , waits 3600 (1H) and restarts again for 40s and so on, until the [Pw K0 0 0] command which resets the function to idles state or another R or timing value like [Pw K4 40 3600].
Note that when the klignoteur is running, a status will show the remaining time ON and remaining time Off next to the corresponding output. The cycle starts with putting the relay to On. Do not choose too short flashing time in order to spare the mechanical relay output!

The maximum delay of kr On or Off can be up to 65k6s maximum, where 65500 seconds will make a time laps > to 18H. If the function k is used on one of the 4 inputs AI5 to Ai8 configured as an output, the On/Off time can be reduced to a minimum of 1 second.

Take the case of input Ai5 transformed into R5 output as seen in R?. So the entry delay is set to 0 by sending the [Pw A5 0 K5 4 8]. This would make the output R5 4 seconds On (level 1) and 8 seconds OFF (level 0).
As a test, a 10 mm "low power" LED (we can provide the LED for free) can be connected directly to AI5 and GND connections on the right. Then send the command [Pw A5 0 K5 1 1] to have one sec On and one sec Off. If the LED does not flash, just exchange the two connections on Ai5 and GND.

M Monitor audio [Pw M?] explains the function.

The internal microphone at position (52) of the controller box (do not push anything in there!) can automatically be activated during an alarm so that the controller can make a voice (any fixed or mobile) phone call by itself to the outside. The MIC function can also be setup for auto answer, so that the controller replies on normal phone call. Review also N at ** for more infos.

For example, first send the [Pw M2 s] to make the controller auto answer a call (the s, optional, will return a status message and should be visible as M2 in the status). After that, dial the controller's SIM card number like a normal phone and you will be able to hear around after 2 rings.
Values of M are valid from 1 to 5, but rather choose 2 or 3. Hang up to end the call, recall or clear the function by [Pw M0] [Pw M9]. The MIC will deactivate itself at HH:59 +1 (so each new hours). [Pw s] or [Pw m] will show the actual configuration.

M set to 9, [Pw M9], makes the controller send back a Status short message when called. This message is sent to the first number in the list (position N1) after two rings. To get the status message, when M9, just normally (voice) call the controller SIM number. The call can be terminated when the third ring is heard.

A call request to the controller is also possible by command ! and so if we send [0000 !NumberToBeCalled], the controller will then dial the "NumberToBeCalled" and so make a phone call to any phone with open mic. Just hang up to complete or the controller will do so itself after a certain time. [0000 !N8] could do the same with the number at position N8 in the list. (see at !)

T Temperature Alert and setup for T1 and T2. list

The thermometer function can automatically send an alert when the temperature falls below or above the programmed edges < and >. These edges, thresholds or limits, as we prefere to call them, are programmed by the command [Pw T1 2.2 37.5] for example. The alert will be sent by default to N1 (changeable), but a second alert number could be programmed by [Pw T1N 13] for example, which makes send the alert to the number written at position N13 in the list of numbers.
As seen at J, we use function JT1 when an Output needs to be switched if the temperature exceeds programmed thresholds.

Sensor T1 gives 10mV/degrees centigrade and is supplied with 5V/regulated by the controller output at box terminal (40). It is preferred to use a shielded wire when the sensor is deported with more then 3 meters cable. In all cases, the cables of the Vn, Tn and Zn probes must always be as far as possible from other wires that can induce a parasitic current such as antenna and 220/380 voltage especially when high current flows.
Depending installation type and situations, it is not always necessary to commun connect GND shielding to earth ground. In case of trouble and because grounding to earth implicates many complex factors, an electrician should better be asked to discuss the matter.

Testing the thermometer function: At 10mV/1° and for 18° one will measure 0.010 x 18 = 0.180V or 180mV. The measurement will be made with a digital voltmeter between the terminals of the controller (38)- and (39)T. Send then [Code T] to the controller which then have to indicate 18° ± the offset. The offset T1o will be used to calibrate or scale T1 Up/Down, but will normally remain to zer0.

Easy electrical test and control of the temperature sensor. Connect a 4.5V battery with Negative (-) to the left pin and + 4.5V to the right + pin of the thermometer probe or sensor. Then measure the voltage between the left pin (-) and the signal (39)T at the middle. The measurement reading must match 10mV by degrees Celcius if the thermometer is in good condition. And so 22° should give 220mV...
Always be careful with the connections, if a doubt remains reread the manual or ask a technician before burning some things!
If the controller is powered by a battery (31)+ (32)- and/or by (34)- (37)+ by a second battery, and/or via a grid ADAPTOR at (29)+ the voltage should not go below 8 volts to ensure correct temperature measurement.

And finally a simple example of T1 configuration: Already Insert the probe at (38) (39) (40) from the right side! Then program the thresholds T1, N1 T1N by sending [0000 N1 YourNumber T1N (0 to 35) T1 15.5 25 T?] To the controller via SMS, PC or the Web.
Heating the probe with your finger tips over 25° will Alert N1 and eventually the second Alert number at T1N. Note here again that < > Alerts are independent of Junction warnings that could also have been configured.
For T2 conneted to terminals (46)(47)(48) we will send command T2+ or Z3+ to make it visible on the status message S and asign the offset as needed.
If we use the the -40+95° T6 type thermo probe at Z3/T2 the place, we will send [0000 T2+ T2o -0.2 Z3M 0/6/0 ss]. As a control we will know that Type T6 give about 2.90 volt output a 20° Celcius and that the voltage change with 10mV/K. We connect it with Brown=GND=(46) White=Signal=(47) and Green, 5V supply comming out the controller at terminal (48).
For this probe -40/95°, Type 6 offset 0 is same as using type 5 with offset -290. So use this when the GXL88 firmware version do not support type 6. Type 6 is supported from version 2-17. (Feb 2017 zie menu F?)

V Voltage Alert and setup for V1, V2, V3 and VS

The voltmeter function can automatically send you an Alert SMS when the voltage falls below or above the programmed edges < and >. As before, these edges, thresholds or limits, could be, for example, programmed by the command [Pw V1 11.2 14.0].

The alert will be sent automatically to N1 by default (changeable) but if necessary, a second alert number can be programmed by [Pw V1N 15] for example. This would make send the second alert to the number written at position N15 in the list of numbers.
As seen at J, we use function JV1 when an Output(s) needs to be switched when the voltage will exceed programmed edges.

A Voltage Alert Vn < > to your mobile will show:

a) V1 Batt(31)! Which one is giving the Alert. And box position (31)

HIGH = 14.1
      Volt at V1 input! HIGH so Alert

Low limit; 11.2 Programmed LOW voltage edge <

High limit; 14.0 Programmed HIGH voltage edge >

V1o 0 V1N 15    V1 offset and possible second ALERT number
Not from: JV1     Specify a)lert not Junction w)arning
0 0 0 0 Eventual JV1 Junction Configuration
Battery G-1    The name of the Function V1. See at e?
Pw s, T? J?       Commands to see when message not obvious!
10:36 Name/Loc    Controller time at Alert + Name/location

The V1 voltmeter will reflect the voltage measured at box terminal (31)+ and (32)- negative and is generally where the 12V G1 generator +BATT is connected. V1 will give the condition of the said 12V battery. In a minimal controller configuration, a backup battery can power the controller via the V1 input on the event of ADAPTOR (VS) power failure. 16V maximum to this entry anyways.

The voltmeter V2 will measure an external voltage up to ±80V DC applied to box connector (33). Generally used to measure a battery pack of 24 or 48 volts. If the battery pack is grounded by its positive pole, then connect the -batt at (33). The pole connected to earth must then be connected at (34) the point GND of the controller (32) or (30) will do as well. V2 measure negatives AND positive voltage.
V2 also internally mesure the voltage applied at (11) and (12) for the internal 48/15 converter. So do not connect V2 at (33) if (11) and (12) are connected.

Input V3, also a voltmeter, is shared with L3 entry at connection (37) of the controller case. When the installation has two generators, V3 will be the input for the battery+ G2. In other cases we can supply V3 via a same 12V ADAPTOR as below or with any DC source, making sure not to exceed 16V maximum!

ADAPTOR Input at (29)+ or positive, is also the voltmeter VS (Voltage Supply). This input is normally powered via the network grid power via the delivered 240 to 12Vdc power supply adaptor. But another source of 12V could be fed at Vs at position (29)+ for positive and (30)- for negative. Maximum 15V to this entry one way or another.

Any of V1, VS and V3 or two of them and also all together will standard feed the controller but not V2 that is only a voltmeter. All GND's are all connected together internally and also need to be connected externally when some device(s) need to be powered with these leads, because no high current must be flowing through the controller GND circuitry, being the measure reference level. See GXL88 supply for details.

Command [Pw v?] will show the voltmeter function infos

Pw V1 L H           Syntax to setup V1 < > edges
V1 12.2 11.2 14.0 Actual Volt, V1 < > edges
V2 53.2 47.0 56.5   Actual Volt, V2 < > edges
V3 12.3 11.1 0    Actual Volt, no Alert for < > at 0
VS 12.0 10.5 11.5   Actuel Volt, < > for VS Alert to N1
<V> SMS N1          Alert to N1 if < or >
V1o -0.2 N 15       Offset. [Pw V1o -0.2 N 15] alert to N15
V2o 0 N 10          Offset. [Pw V2o 0 N 10] and second Alert
V3o 0 N 0       V3/L3. No offset nor second Alert wanted
VSo 0 N 3         Offset = 0 and second Alert to number at N3
Pw Vno o VnN N    ex: [Code Vno 0.2] , [Code VnN 15]

So the 4 voltmeter functions have a minimum < and maximum > configurable threshold at which, when exceeded, an alert will be sent to number pointer by N1 and if wanted to a second number from the list. As above for example V1 to N15.
An Offset o can also be separately programmed to each voltmeter whether the voltage is deemed inaccurate or if one wants to shift the measurement result ...

Voltmeters V1, V2, V3 and VS can all operate outputs and send Junction warning messages when corresponding junctions JV1, JV2, JV3 and JVS are configurated as shown in J?.
To configure the Junction JV1 without warning and at the same time a security alert < >, send for example the following command to the controller [Pw JV1 11.8 13.8 3 0 V1 11.2 14.4 V1o 0 V1N 15]. The junction will switch {R3} ON below 11.8V and OFF above 13.8V. If then after that, the voltage still rises or drops outside the edges of V1 < >, an Alert will be given firstly at N1 in list and secondly to the number pointer by N15.
Please note again here the value of alert < is inferior to Junction field {JON} and that value of > is superior to the Junction field {JOFF}.

As for the other functions, when a voltmeter is not in use, it can be removed from the status message with [Pw Vn-] (n for 1,2,3 or S). It remains in the message V?. We can put it back to the status with command [Pw Vn+].

Z1 Z2 Z3    Multipurpose sensors inputs.

These inputs accept various types of analog sensors such as pressure sensors , temperature etc. Inputs being separately configurable, a thermometer or an additional pressure sensor is easily added. The analog inputs directly accept a signal of 0-5 volts on the measuring inputs and up to three probes can be connected.
Inputs Z1, Z2 and Z3 may be renamed in order to recognize the function, T2, GL, Vt, Th, G3, etc could then be visible at the status message. Unused Zn fuctions will be removed or added from/to the status if Zn- or Zn+.

Below you will find a brief description of the most common probes. However, installation and connection of a pressure sensor probe usually requires some expertise and should best be done by a specialist in the matter. Special sensors for voltage, current, humidity and other are provided on request with their respective documentation.

Pressure sensors type gauge or gage are compensated for atmospheric pressure variation. For the immersible type this is done with a fine capillary tube passing through the connection cable. The power source 12/15V is made at the controller (45)+ or another external low power but stabilized source. Generally they have 3 wire connections, 0 = GND, Signal = Zn and supply 12/15V or more. Up to 3 pressure sensors can be connected directly to de GXL88! (Optionally 4 if T1 is not used).
The gauge type pressure sensors are referenced to ambient pressure, the measure gives thus the absolute pressure -(minus) the atmospheric pressure. So if possible, use the Gauge type that does not require a second atmospheric reference sensor...

For a 0 to 5V full range output signal, 100% of the probe measuring window can be read. For a still usable 0-10V output sensor, only 50% of the range will be read, because double pressure will be needed to reach the 10V for the maximum range...

Sensor choice is of fist importance (see other equipment from us) and must be related to the height of the tank. The maximum height in cm liquid equals about the scale of the probe for millibar for water and will give the greatest resolution and consequently more precision*. We do not sell probes, but can recommend a dealer.
Recommended are quality sensors (0-5V analog) that can read the level to 0.2% when well matched to the tank. A type "immersion" IMPRESS SENSOR LTD (UK) or HOLYKELL IMSL (HK) HTP604 and other to be screwed on the (1/4 inch) piping from SENSOR TECHNICS GmbH in Germany, but there are of course many other...

*Be warned anyway for resellers using a standard measuring diaphragm and adapting the output signal window (here 0-5V) for only half of the scale. The sensor is then only used at half its capacity, reducing strongly the resolution of the probe. So for a 100mBar tank the sensor diaphragm must be designed for 0 to 100mBar.

Absolute pressure sensors such as for example the type SH110 power supplied with 5V by the controller or another source. This type of sensor is not compensated for atmospheric pressure variation and therefore requires a second reference sensor reading the air pressure, so that the GXL88 after calculation, produces the tank level value. Here also possibly with 5V at 100% full and 0 when about empty. One tank with 2 SH110 or 2 tanks can be measured on Z1, Z2 and Z3, with two SH110 and one for the reference.
Absolute pressure sensors are referenced to vacum. The datas are equal to the fluid pressure(high) + the atmospheric pressure .

Pressure sensors Type 4-20mA. These probes, temperature and atmospheric pressure compensated will be chosen* so that the maximum level of the tank filled corresponds to about 20mA. The probe can be powered at the controller (45)+ via the internal converter or with an external 15 to 24V power source. Internal corresponding jumpers 1 and/or 2 (next to the middle red/green LED) need to be inserted for 4-20mA probes. Up to 2 tanks can be measured with 4-20mA probes and one more 0-5/10V at Z3.
Be aware that 4-20mA sensors consume more current than the 20mA, especially with TWO 4-20mA probes. So we have to be sure that the used/installed internal converter is able to output the TOTAL power of the 2 or 3 probes or an external power supply will be needed. Furthermore, 12V from a battery will likely, but depending of its type, not be enough to feed a 4-20mA pressure probe at full range.

Thermometer probe Type 5 / T1. Thermometer probes, similar to the standard one T1 0-95° and powered by the controller with 4V to 12V (like the 5V output at (40)+ and (48)+), can be connected to the inputs Z1, Z2 and Z3. Moreover, Z3/T2 accepts direct connections of a standard T1 thermometer probe at (46)- (47)T and (48)+.
Beware of (48)+ which is a +5V output to power temperature or other sensors. Up to 4 standard thermometers can be connected to the GXL88!

Probes thermometer type 6 and 7. Other thermometer can be connected to the inputs Z1, Z2 and Z3 and be powered via the controller's power pin (48)+ for 5V or (45)+ for 12V. They are also simply powered by an external power supply, because these thermometers type 4, 5 and 7 are not ratiometric sensors (where the output signal voltage is proportional to the supply voltage).
Z1, Z2 and Z3 multipurpose inputs accept special thermometers type 6 -40 +95° and ±2.5V type 7
Type 6 mesure from -40 to +95° avec offset ±0. As a control, Type 6 probe show about 2,90 Volt output voltage at 20°. They will be connected with Brown=GNG=(46) , White=Signal=(47) Green=Supply=+5V=(terminal 48) when used at T2/Z3 input.
Probe Type 7 (thermo or else) gives 0 reading at about 2.50V with ±0 offset.

The information from Z1, Z2 and Z3 may be represented directly as digital value of 0 to 1024 points and directly read to the 0V to 5V input or in percentage (%). The three Zn functions can switch outputs and send out warnings when configured as Junctions and also Alert messages with the Zn minimum < and maximum >. Here also, an alert is send to N1 and possibly to a second other number with the [Pw ZnN N] command.

    Functionality of Z1, Z2 and Z3 is separately configurable with parameter (Mode) / (Type) / (Chr).

    The MODE indicates the mode of calculation of the function.
          0 In % decimal xxx.x 0 when < or = to Zn Bottom and > 100 when > Zn Top
          1 In point 0 to 1023 or 0 = 0 volts at the input and 1023 when 5 volts
          2 In points, negative result below Zn Bottom. (Do not confuse Bot/Top with parameter < / >)

    The TYPE indicates the connected sensor model.
          0 Compensated for atmospheric pressure variation sensor with 0-5V to the Zn input
          1 Sensor output minimum of 0.5 Volts and maximum depending of Zn Top
2 Sensor output to Zn input from 1 to 3,5, 4,0, 4,5 ou 5 V configurable with Zn Top
          3 Z1-Z2 if Z1 Type=3. Z2-Z1 if Z2 Type=3. Z3-Z2 if Z3 Type=3. (SR110 seen above)
          5 Thermometer (0-95°) (offset ±0).   6 (-40+95°) (offset ±0). 7 Spécial ±2.5V(Offset ±512)

    Chr "character" shown as memo after the result of the measurement.
          p for points for example. So 0p ou 1000p is displayed on the messages.
         % will make display % after the measurement result
          0 zero if no character needs to be displayed after the measurement result .
          V # $ d t T c etc can for example be chosen as a displayed character.
           | ± ° \ and many others, not to choose because not fitting standard GSM alphabet.

The most common mode, 0 (also the one of previous versions GXLxx), gives a level of 0% to 100 % when parameter Bot is left to zero or near to it and parameter TOP is about the maximum at ±1000 (but not left to zero!).
So, for a standard HTP604 probe on Z1, that might be called GL and from which you want to receive an alert at 10 and 90%, we will send the following command [0000 Z1M 0/0/% EZ1 Gl Z1B 25 z1T 1005 Z1 10 90 z]. The final z make return config Z...

[Code Z] gives a message with the configuration details.

Pw Zn L H         Zn < > (n = 1 to 3) ex: [Pw Z1 10 90]
Z1 43.7% 10.0 90.0 Alert if inferior to 10, superior to 90%
Z2 390p 0 0       Input Z2 mode 1, no alert because < > = 0
Z1o 0 N 0           Z1 offset = 0, no second alert number
Z2o -10 N 0         Offset -10 points. No 2" alert number
Points Bot Top      Here below, Bot and Top in points
Z1 433 25 1005      Actual sensor datas and (Bot)tom and Top
Z2 400 0 0          Raw Zn datas. No calculation no offset.
Z1M 0/0/% Gl        Mode/Type/Chr for Z1 + alias
Z2M 1/0/p Z2        Mode/Type/Chr for Z2 + alias
Zn-/+ see Z3        [Code Z1+] for Gl to status, Z1- for none

Z3 details are on another message! [0000 Z3] will show those.

From V1 to Z3, Alert thresholds or edges can be easily configured with the two < (inferior to) and > (superior to) parameters of the function as for example with command [Pw Zn < >]. An alert message always begin with a).

a) Z1/Gl(43)!         Name/alias input at (box terminal position)
High = 90.1%          Actual level to high! So an Alert...
Low limit; 10.0%      Inferior and superior programmed edges
High limit; 90.0%     Edges/thresholds programmed with [Pw Z1 10 90]
Z1o 0 Z1N 0           No offset and no second alert number
Not from: JZ1         a) = Alert not Junction w)arning
15.0 85.0 0 0         Junction inactive anyways JR AND JN =0
Tank 1 Diesel         Optional name of the Function Z1
Pw s, J, Z            Commands related to the function
12:52 Gen-1         Alert time and controller Name/Location

The Zno (offset) will remain at zer0 for all similar sensor types in Mode 0, because the configuration of ZnB and ZnT parameters are those, that will be calculated from the sensor output voltage with the 0 to 100 % "window". Both parameters are extrapolated or read from configuration message [Pw Z) with a full tank and later with an empty tank at first opportunity.
    So if Z1 14 0 0 shows 14 points at empty tank (0%), assign Z1Bottom with [Pw Z1B 14].
    Z1T is the (100%) full tank value in points. If 1005 full, assign [Pw Z1T 1005] as the TOP value.
    ZnBottom and ZnTop are the raw values from the input without calculation other than the offset.
Note that by very fast filling and emptying of the tank it could take a few minutes before we have a stable reading for Zn, depending on the pressure sensor. The percentage calculations are integrated in time in order to remove most of parasitic transients/spikes and add a delay of a few seconds, but raw Input points are read immediately.

To configure a junction JZ2, see or review paragraph J? and also the following simple brief example: A pump operated by output R{4} will be set ON below the level of {100} points and stopped above {800} points and no warning will be sent. Nevertheless an Alert must be sent at N1 (the default number for Alerts changeable) and N10 ,just in case the pump does not stop.
So connect the pump via R4, ensure that the numbers N1 and N10 are programmed in the list of numbers at corresponding positions and send this command to the controller: [Pw JZ2 100 800 4 0 Z2 50 850 Z2N 10].

Example de paramètrage de sonde HPT604 avec sortie 4-20mA sur l'entrée Z1.
Une entrée 4-20mA demande une charge de 250 Ohm afin de transformer 4 à 20 mA en une tension mesurable de 1 à 5 Volt. Déjà prévue au GXL88 il suffira d'enficher le pontage 1 pour l'entrée Z1 (juste à coté de la led deux couleur verte/rouge du millieu à cosse position (41)). Si le pontage est douteux et supposé faire mauvais contact il sera préferable de souder à l'étain les deux pattes du pontage.
On branchera (la couleur des fils est à verifier sur la notice de la sonde qui sera utilisée) dans l'ordre (bleu/blindage(42) VERT(43) et le rouge positif en dernier à (45) qui est la sortie 12V (ou 15V si le convertisseur interne est monté et alimenté en 48V à 11+ et 12-) servant à alimentater des sondes.
Les paramètres seront programmé avec Z1B à 200, ce qui correspond à environ 4 mA ou 1Volt ou encore cuve vide et Z1T à 1020 qui correspond environ à 20 mA ou à 5V quand la sonde est à pleine échelle avec cuve pleine.
Le Mode et le Type peuvent rester à zéro [Code Z1M 0/0/%] et le resultat sera lu en pourcent à Z1 au status. Comme déjà vu Z1 doit alors être ajouté au status par z1+ et peut être renomé par GL pour compatibilité au série de contrôleurs précédants.
Donc en une fois: [0000 z1b 200 z1t 1020 z1m 0/0/% ez1 Gl z]

Example de paramètrage de sonde SH110 (sonde non compensée en préssion ambiente).
En premier on rendra seulement la sonde Z1 visible au status, que l'on nomera GL pour "Gazoil/Gauge Level" [0000 ez1 GL z1+ z2- z3- S]. Apres quoi on configurera la sonde Z1 et la sonde de reference Z2 avec les paramétres suivant qui correspondent à notre installation de teste et qu il faudra ajuster à votre situation réele en particulier le Z1B et Z1T.
    Pour Z1 (mais on pourrai tout envoyer d un coup):    [0000 Z1B 1 Z1T 136 Z1M 0/3/% Z]
    Et pour Z2 on enverra:   [0000 Z2B 340 Z2T 440 Z2M 1/0/p s+180]
Notre sonde SH110 de référence (la même que celle à Z1) donne environ 388p a une pression atmosphèrique de 1024 mBar. Z2 est tout simplement posé à l'air sur la table à coté du GXL88 et Z1 est plongée au fond d'un tuyau rempli d'eau à ±95cm.

En comparaison, Z3 qui est equipé d'une sonde standard compensée à sortie 0-5V pour 0-125mBar, installée au fond du même tuyau donne 80% avec la configuration suivante: [0000 Z3B 0 Z3T 999 Z3M 0/0/% Z3+ Z3]   (marron/noir montrent les differentes commandes du message).

Important and not to be overlooked, here too, while the junction parameters can be used to control a system with output driving machines, with or without warning, like a pump filling or emptying a tank, programming the alert thresholds < and > lower and higher than those of the junction could prevent of troubles by defect on the system...

Some additional details about the probes. The sensor should be selected for a pressure just a bit lower (due to the internal electronics in the probe) to the maximum height for a complete reading of the measuring range of the probe.

If the tank is 1.2 m high we take 0-100mBar which is 1.20m of diesel at ±0.83 density. A probe from 0 to 120mBar will be the right choice for a 1.50 meter high tank of diesel.
If the sensor is given for 200mbar at range 0-5V full (=241cm oil) and that the tank is only 120cm high, 50% resolution is lost because the probe can only give to 2.5V output for 120cm fluid.
For greater accuracy especially when you have a loss of resolution when the probe does not correspond to the maximum height of the tank, we will/can use the raw points information of the probe instead of percentage.

When calculation of the volume in liters is simple for a square or standing cylindrical tank, it is quite different to a cylindrical one placed in a horizontal position, which requires a complex calculation.
An internet search about Tank Volume & Fill Calculator will give some answers (if the calculator works well ;-)

As already seen, all Ai1 - Ai8 inputs can be used as flooding detector, overflow and water leakage. An input connected to a simple wire, striped on fews cm, making contact with GND via the water can force send a message and operate any pump or other if wanted. Do not forget to connect the metal mass of the tank to the controller GND or use another wire connected to GND and mounted at some cm of the sensor wire.
The same system can be used to detect a level of water at the bottom of a tank or else. Please click on the photo.

AC Grid* Alert and Warning and control on (C29+) (C30-).

240VAC grid control. The status message [0000 s] will show at the line AC=1 xxx if the ADAPTOR connected to terminals (29)+(Positive) and (30)-(negative) is powered and thus gives 12Vdc power to the VS inputs. The same line will show AC=0 xxx if the adapter is not powered.
VS is also a voltmeter and the VS < parameter gives the voltage edges at which AC=1 xxx or AC=0 xxx will be shown. xxx is the voltage at L1-3.
VS can be configured by [Pw VS < >] and/or by the junction [Pw JVS JON JOFF JR JN].
The AC- or AC+ command can be used to add or remove the AC line to/from the status. If the controller is only powered by the VS (Voltage Supply) no Alert or Warning can be sent at power fails because there will be no power any more to do so. If needed, a second power source can be added.

Power Generator control without Network or Grig. The (supplied) adapter will be inserted into the high voltage system of 110 -240VAC and its output 12Vdc will be connected to VS ADAPTOR at the two screw terminal (29)+(Positive) and (30)-(Negative) of the GXL88 box or case.
The 12 volt generator start battery will be connected to V1 BATT (31)+ and (32)- without any error!. See below for Controller Power!
The controller can start/stop the generator and junction JVS ADAPTOR may eventually switch an output and send a warning on generator power start or fail and thermometer Tn in case of a temperature problem. Note here that any 100 to 240Vac voltage control is equally possible via other adapters at connections L1, L2 or L3/V3 and the corresponding Junction warnings.

The generator battery will be monitored by V1 and alerts can be sent when the voltage exceeds the programmed < > thresholds. The simple command [Pw V1 11.0 15.0] will send a battery alert below 11.0 and above 15.0V. These are very critical thresholds for a 12V battery since it is likely that the generator can no longer start with a flat battery*.
The Alert (>) could notify a defect of the dynamo/charger which should not climb above 14,5V.
Junction JV1 can, just as all the other junctions, switch an output ( for example to start the generator to recharge the battery), and send Warnings when the battery voltage exceeds fields {JON} and {JOFF} (see JV1 to J?).
* No Alert, nor any message or Warning can be sent if the battery is flat, drawn empty by the starter! If the generator is started via Rn a flat battery will reset Rn to Off and also the controller.

For controlling an emergency generator that can replace the grid network.
The 12 volt battery of the generator must again, as above, be connected to the controller housing at terminal (31)+ and (32)- for V1 and monitored by the V1 < > function and/or the JV1 Junction. The adaptor will be plugged in the wall and the 12V must be connected to the VS input at terminals (29)+ and (30)-. The controller is then normally powered by the two sources Vs ADAPTOR and V1 for the generator BATT ...

The function JVS will make start the generator in case of main voltage loss and stop when it returns. This immediately or after a configurable delay by [Pw JVSM (1-250)] see JM. Let us note here that it is the same timing for the two cases {JON/JOFF} and that JLn can be used if two different delays are wanted, as well as JLnS that have both {JON/OFF} second timing configured (see Js).
To control the Generator, Grid or any high voltage status from 100 to 240VAC, ALWAYS use an adaptor! We will connect its output (from 5 to 15Vdc) to one of L1, L2, L3 or VS controller inputs and setup the corresponding junctions.
JVS, JL1, JL2 and JL3 have the same functionality and normally only JVS and JL3 feed the controller together with V1.

It is in any case strongly recommended to monitor the generator battery or the controller backup battery connected to (31)+ and (32)- at BATT voltmeter V1. An alert message V1 < > can be sent in case the battery voltage becomes too low or too high.
In addition, oil pressure sensors, temperature and other motor generator sensors may be connected to the inputs Ai1 / Ai8 in order to send a warning with corresponding junctions and even stop the engine in case of bad problem (oil!).
The controller has enough possibilities for the control and monitoring of a generator set (Mono or 3Ph ) without requiring additional hardware. *GRID = household power, domestic power, wall power, line power, AC power, street power, and grid power.

The number where Alerts Vn, Tn and Zn (not Junctions warnings pointed by the junction last field himself) is showne by ACL0N at menu [Pw AC]. Pointing to N1 by default, it can be modified (from V3-15) by commande [Pw ACL0N (number_in_list_1_to_35) ac].