Command [0000 AL] will make SMS you the actual input delays list and names.

0=9 EXIT!     Delay when manually switched On
1=3 A1
2=4 BACKDOOR  Actual input name
3=1 A3        Only to number 3 in list
4=0 A4        No alarm on A4 (0!)
5=-553 A5     Was 32, but disabled for 10mn
6=R6=6 A6     Can also be used as an Output
7=1 SOS (your SOS msg) 15c only shown with AL
A=ON M0
04:41         Clock time is added in most SMS

[Pw NL] will make send back an SMS listing the first found numbers;

1 0655520710     Number N1 mandatory.
2 0206222240     More alarm numbers.
3 +33453256333   Abroad numbers as well.
10 <10101010     Warning number;
15 <0658520220   Jnn (F4=15) Warning only for Low/0/Off.
20 04755245154   Jnn (F4=20) Warning for H/L/1/0/On/Off.
35 >0696465498   Jnn (F4=35) Warning only for High/1/On.
36 >+2356521154
40 =R2 60        Jnn (F4=40) switch R2 On 1mn.
45 Anytext15Chrs Any short text can be stored,
46 more text!    having no functionality (memos).
50 0552545245
55 =s            Status to N1 on Jnn event pointing to N55      
51 =R5 Off s     R5 off, Status to N1 on Jnn event.
55 AT+PSSLEEP=0  AT command executed at radio start.

Numbers are listed in order from 1 to n untill SMS is full. [Pw NL35] will make send back an SMS listing with numbers found from position 35 until no more are found or SMS full again. An SMS can carry up to 160 characters.

Junction command having last Field F4 pointing to a list number can make send a Warning for low/0/Off (<) event, the opposit(>), both event or none when F4 is 0. See at Jnn for more infos on this matter.
The number list can also contain special At commands that will be executed at GSM radio module setup. So, also at system power-up and after command  [Pw Fz] or in any other cases, making the built-in radio module initialize/restart. Great care must be taken using AT commands to the GSM radio, and doing it without knowledge in the matter will probably at least interrupt any communication with it.
To avoid any confusion, just simply begin writing Alarm numbers into the list from N1 and evaluate the Alarm function before using other possibilities.

!ALARM! BACKDOOR     Alarm message show !ALARM! first!
A2=Low(0) TRIGGER!   Or High(1), + remaining of the message.
Actual names are also listed in the delay timing SMS. Try [Pw AL]

Alarm input names can have a maximum or 15 alfanumeric characters with no space in the Input name. So [Pw ea2 sensor-2!] will show "!ALARM!  SENSOR-2!" in an Alarm message.

Only the SOS Alarm message, that can be up to 64 characters long, accepts space characters in it. It will be edited the same way; [Pw ea7 this is your sos message for input A7!]

An SOS Alarm will show;
SOS ALARM Input A7! level=(0).
i0-7: 11111110
THIS IS YOUR SOS MESSAGE FOR INPUT A7!
13:02

After editing, the Alias will be used to command any switching on the outputs. So chose short, meaningful and easy-to-remember output names. To switch On the pump for 15 minutes and the light for 1H, send command [Pw Pump 900 Light 3600].
To rename an Ouput or Intput already, the default name will allways be used. So [Pw ER1 Motor-2] will rename it from PUMP to MOTOR-2.

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

A Microphone (delivered) can be connected to terminals 49 (positive, red), 50 (negative, black) . So put a device On remotely with as example; [Pw R4 On M2 s] to the controller. After this you can normally voice-call the controller and after 2 rings you will be able to listen (optional trailling (s) will here add a status message to the command). Values 1 to 5 are valid, but rather use 2 or 3.  
Just hang up to terminate the call, call another time or disable the monitoring by sending [Pw M0] or [Pw M9] when finished because the SIM could be called from anywhere by anyone else. Mic disable itself at HH:59+1. [Pw s] or [Pw M?] show the actual setting.

A small speaker 16 to 50 Ohm 0.5W can also be plugged at T51 T52 for duplex audio. Do not install the speaker next to the Microphone and install the antenna as far as possible from the MIC. Any amplifier can be used to amplify the speaker's output signal but, an audio transformer (mandatory) needs to be connected in between to be sure of a correct galvanic insulation. To speek trough the amplifier just use same way as for the mic even when no mic is used. Set M to 2 and call the sim.

Any mistake on these MIC and SP input/output and the gsm radio module will definitively become out of duty! Same for all other in- or controller outputs that you may connect at your risk.

M set to 9, [Pw M9] makes the controller send back a Status short message when called. 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.

    Pw    Password  (default 0000).     Changing the password.  [Pw P?]  says how.

The default Password (Pw) is 0000. To change it, send SMS command [OldPw Pw(NewPW)]. The Password is 3 to 7 characters or digits maxi and is case sensitive with no blank in it! Keep it short to make things fast and easy. So [0000 P(123)].

To change it to ABC, send [0000 P(ABC)] and to change it again for "1+2=3" send [ABC P(1+2=3)]

If the Pw is lost or forgotten, disconnect the controller power, any wire on A0 and A1 and short A0 to A1. Power-up the controller again. The default settings are then restored, see (F?), and the Password will be 0000 again. Don't forget to disconnect A0 from A1 after 1 minute! See informations by sending [Pw P?] before changing the Password and be sure what to do. AO is Terminal T17 and A1 T19.
If A0 and A1 can not easily be disconnected, use the internal "In Pw =0000" jumper, found just above the A0 A1 connectors.

    F   Factory parameters restore.    [Pw f?] to the controller shows the details.

In case of a major problem, sending [Pw FSRA] to the controller will force the restoring of the controller and the Parameters to the default factory settings. Wait 30 seconds and use Password 0000 (4 x zero) after a FSRA command. Then start to re-program the parameters to the wanted values. Restoring the controller and the Parameters to the default factory settings can also be achieved with the internal "In Pw =0000" jumper.

[Pw Fz] only initializes/restarts the built-in radio module (the one that connects to the GSM network),  password and parameters remains the same. This action has the same effect (but from a distance) as removing and re-establishing the controller power.
[Pw Fg] restore the radio module default settings (only use after changing some AT settings).

The [Pw F?] command to the controller will send back an SMS that also shows others relevant parameters.

The SIM/NO SIM option makes the controller work stand alone without connectivity. So the SIM card (also when incerted) is disgarded and all related GSM issues are disabled. This option will be useful when the controller is used to regulate some local systems that do not require GSM control or commands.
Regarding the possibilities, this controller is also a programable control computer at very fair and competitive price!

Command [Pw Fsn] serial or via SMS enables the NO SIM mode. If sent via SMS, it will consequently be the last command received via SMS. [Pw FSS] sent from PC via serial will re-enable GSM communication and restart the controller. Local PC communication still available in NO SIM mode and any settings or commands can be done from it. 


    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 that resets the controller computer on a fatal error), because it always restarts at zero when the controller is powered On or by the FSRA or Fz command.
By default and as control, a Status SMS is sent to number N1 3mn after power on or initialize if no command is received by the controller before this lapse. The time shown in the status is then 00:03. After that, the software clock will synchronize with the hardware real time clock. If no power interruption has occured, it will be set to the right time (if parameter Hc is left at 0). The hardware RTC is both fed from bat+ or adaptor+ power.


Hc is a clock correction parameter that can be used to tune the software clock only. If you think the clock is too fast with 2s a day, send [Pw Hc -2]. If 4s a day too slow, set it to 4 with command [Pw Hc 4]. [Pw Hc 0] will force use the hardware RTC clock that does not need any correction and is the recommanded setting. Only the software clock is working in the NO SIM mode, not the RTC. So when needed, the Hc parameter can be used.

[Pw Hs1 3 12:15 h?] Will force a Status SMS to N3, each day, at 12:15. This will give a good control of the system. [Pw Hs2 50 2: 30 h?] will send a second status message to N50 at given time. A valid number needs then to be at position N50.

Hss force send status at Hss programmed value to the list number assigned to HS2. So command [Code Hs2 25 00:00 Hss 600] will send the status at number found at position 25 in number list. This on the 10 mn (programmable from 0,1 to 65000sec).

[Code HSE 6 15:30] make send Energy Status  SMS (SE) to Number 6 in list, every days at 15:30. If field HH of HsE is zero, only the minutes are worked out and a Se status will be send out each hour, also synchron to time clock minutes MM.
So command; [Code HSE 8 00:30] send each hour at HH:30 to Number written phone book list at position 8. (See at bottom Se and Sx for Status request to the energy module that then immediately reply).

An Output can be automatically switched at a wanted time. [Hr2 14:15 14:30] will switch Relais output R2 at 14:15 On, then Off at 14:30. This on the daily. If Hr2 time off is left at 00:00, parameter Hrs will say for how many seconds the output needs to be on. So [Hr2 14:15 0:0 hrs 12] will make switch the output On for 12s at 14H15 everyday.

    D   Dial to n numbers for Alarm and SOS.    [Pw d?]  Shows details + actual values.

Programming how many numbers will receive the message for SOS and ALARM. Parameter Dial tells to how many numbers in thet the Alarm SMS are sent.

Command [Pw D 2 5 d?] will make the controller send SOS Alarm SMS to the 2 first numbers found in the numbers list and Alarm-SMS to the 5 first numbers found in the same number list. Numbers found at lower position will be served first. Following/trailing d? optionally returns you the new settings. (See N above to program the numbers).

    I    Interval timing on Rn .    [Pw I?] gives details. [Pw s] show the Interval values.
 
Any of the 5 outputs Relais can be used for Interval timer up to 65500 seconds (>18H).

[Pw I3 40 3600] will switch on Output R3 for 40 seconds, waits 3600s (1H) and switches it on again for 40s. Again and again until command [Pw I0] , [Pw I3 0] or other Interval values are sent to the controller. [Pw I5 40 3600] will use output relais R5.
Do not choose to short times to preserve the mecanical output relais.

    J    Junctions.  Ji1-7 Ar,As, Ac, L1, L2, L3, JV1, JV2, JT1, JT2 JGL, JYg,,,
 
The "Junctions" functions gives you the possibility to link any input(s) or any event (Voltage, Temperature, Level changes and others) to any output(s) or action. These Junctions, soft but physical, add "extended" functionality and flexibility to the controller.
The most simple one for example, can switch an output relais On, Off or for a time lapse, depending on an input change, while others can force an action at measured values programmable edges.
[Pw J?] explains the principles, [Pw J??] shows more, [Pw JL] lists the active Junction parameters, [Pw Js] lists the junction input delays for Ji1 to JL3, [Pw Jm] the unlock parameter for JAC to JYG and [Pw JLs] returns a list of basic Jnn settings just for remembering.

[Pw JL] lists the active Junction and parameters (listed values are fields examples).

Ji1-7. For example, this simple Junction SMS command [Pw Ji3 1 0 4 2] to the controller makes switch output R4 On when input i/A 3 changes from low to high and switches it Off when high to low (to GND) level again. A warning message is sent to number 2 from list.

From Ji1 to JL3, F1 what to do with the Output when the Input is or goes to High(1) and/or ON level and F2 what to do when the Input is or becomes low(0) or Off level. (we can speek of On(1)/Off(0) level for JAR to JL3).
The wanted output can be switched On, Off, switched for a time lapse or left unchanged for corresponding event. From Ji1 to JL3, each input has its own configurable delay JnnS for HIGH(Low to High change) and LOW(High to Low change) level events to be awaited for before action occurs.

[Pw JAR 1 0 2 0] Makes output Rn automatically switch Output R2 On when the alarm function is activated (On) and Off for the opposite. This can command other devices On/Off together with the Alarm mode. (As usual, one (1) blank space character should separate the command fields).
[Pw JAS 120 -1 5 0] will force Relais output 5 to be switched on for wanted time lapse (2mn here) in case an Alarm event triggers On an alarm input when the alarm function is On or O+. So a lamp, siren or other could be connected to this 10A Relais output.

[Pw JAC 0 1 3 3] Configures a Junction for the AC grid power failure/recovery (via the delivered AC adaptor connected on T29-30). Relais output 3 is set On on grid power cut event and switched Off on power recovery. SMS warning is sent to number 3 in list.
 
JAC to JL3 also have configurable input delays for both ON/OFF Inputs level changes. Delay are programmed in SECOND.
So for example, according to the JAC settings just above,  we could send command [Pw JACS 60 10] to setup a 10s delay to wait for before switching R3 On in case of AC power Off and wait 1mn before switching Off after AC power ON recovery.

[Pw JS] lists the junction input delays for i/A1 to i/A7 and JAC to JL3.

[Pw JL2S 0 120 JL2 -1 3600 1 10] sets up a Junction that will activate R1 for 1H and sends a warning to N10 on power OFF at input L2 for 120s. Power Up on input L2 again will do nothing because field F1 at -1 discards the output and number N10 as "<10101010" is only sent for low/Off event.
Now let us consider that if AC and L2 are both fed with the same power via two separate adaptors, and that R3 was meant to start a backup generator, R1 is switched On and an Alert is sent by JL2 after 120s if the generator did not start with JAC (or does not give any power on the line feeding the adaptors).

While above, fields F1 and F2 decides of the Rn output action, F1 and F2 will hold the LOW and HIGH edges values for JV1 to JYg.

From JV1 to JYg;
F1 is the LOW edge INPUT event value that make switch the OUPUT ON.
F2 de HIGH edge INPUT event value field that make switch the OUTPUT OFF.

So normally a relais output will switch On when <LOW and Off when >HIGH edges. Like above, none of the fields is mandatory and as shown below, the switching order for the output On when value F1 is LOW and Off when value F2 is High can simply be inverted when needed.  From JAC to JYG can have and Unlock timing that will reforce the junction when the action fails to give expected result.

[Pw JV1 11.1 14.5 3 0] Enables a Junction between the voltmeter Bt/V1(T31) and output R3. So if battery level becomes lower than 11.1V output R3 is switched On. and off above 14.6V. No warning SMS or field 4 must point to the list position where to find the number to be warned. Same for JV2.

(JT1/2 Low_Temperature High_Temperature R_to_switch N_position_in_list) enables a junction between the Thermometer sensors T1(39) or T2(T47) with output Rn. This Junction gives a simple thermostatic control on T1 ou 2 or can only be used as a control (Rn=0) and warn number N in case of.

[Pw JGL 5 95 0 1] Can make send a warning at N5 and 95% level (no switching R=0).
[Pw JGL 5 95 5 0] Can pump into the tank at 5% and stop at 95% level (no warning N=0).
[Pw JGL 5 95 15 18] Can make switch a pump to empty the tank at 95%, send a warning to N18 and stop at 5% level.

[Pw JYg  40 66 2 0] Switches R2 On at 40% Humidity level and Off at 66%. (no warning if N=0)
[Pw JYg  45 70 0 38] Does not switch (R=0), but sends Humidity warning ONLY above 70% if N38 [>NUMBER].
It does not send low warning if number in list is preceeded with the > (superior) sign. If N38 was [<NUMBER], so with a leading sign < (inferior) it would send the warning only for low event, so <45%. See N? again.

[Pw JYg  40 66 12 0] Switches R2 On at 66% and Off at 40% Humidity level (no warning 0!). Notice here that the Relais cycle is inverted because R2 is offset by 10 (2+10!). This makes use of R2 (only ON/Off position) possible. The cycle can also be physically inverted by use of R4 or R5 that have On/OFF/ON positions.
Junction field R can first switch an output, field N (that normally vectors to the number to be warned) can also force a local command for the same trigger event like number N44 could with [Pw N44 =R1 OFF] (see N?), other outputs can be switched, switching rules can be inverted and if required, a following junction can be executed.

JM  Unlock timing can be setup for junction (10) JAC to (19) JYG.
Unlock timing is programmed in Minutes and counts for both Input High Low level. UNLOCK timing can force the junction trigger again after 0 to 250 MINUTES if the previous junction action did not change any things. When left unused (JnnM 0) the junction force only one action and optionally one warning at Low/high edges when simply configured.

So in case we want  to switch a pump that begin to fill a tank at 5%, a warning to N18 at start and stop the pump at 95% level. We programme JGL  [Pw JGL 5 95 5 18], number 18 in list with; [Pw N18 <NUMBER] and the unlock delays by [Pw JGLM 7]. Or simply [Pw JGL 5 95 5 18 N18 <NUMBER JGLM 7]

The above JGLM settings will reforce the JGL Junction each following 7 minutes; try to start the pump again and Alerte N18 again ONLY if the level is still below 5% AND that there is a real switching because R5 was off (if an other junction put it off or other cause).
If the tank is full as it should be, R5 is Off  (or try to be set off again after 7mn). no warning is sent any way because of  the number leading <. If the tank if full and R5 was stopped or that the level is between Low and High, JGL will do nothing.
For even more security we could also setup G for a Alert message outside these junction edges like 4% and 96%, to be warn of a malfunction probably somewhere beyon R5! To setup an Alert Use [Pw GL 4 96] this as an example.


The use of the PC program will make simulation + evaluation of several combinations much easier.

Added Options for junctions switching.

Three software junctions J20, J21 and J22 were added to the physical Junctions 1(Ji1) to 19(JYg). Any junction Ji1 to JYg can have the F4 (N) field offset by 100. So any junction field F4 at 120, 121, 122 will point to the software junctions 20, 21, 22, configurable the same way as the 19 first one. For more "content" F4 can also vector to a physical junction in range 101/119 and force execute it as well! But to make it easy, please try the basic Junctions at first...



Programmable Restriction and control Alert for junction switching on R1 and R2.

We only will see the command for R1. R1 and R2 having identical commands. So the three fields JRn command [Pw JR1 3 65 10] setup a "Off" restriction for R1 and a control for R1_L1 with alert to number 10.


Restrictor OFF here to 3, will force check R3 before any junction action on R1 so that R1 can only go Off if R3 is Off. All relais can be used as restrictor except R1 (or it will remain to ON). Direct commands like [Pw R1 off] [Pw R1 (timing)] still work and always can switch it off.

Control R1_L1 makes send Alert (to number 10 in this example) after junction switching of R1 if after 65 secondes no power appears on L1. Another adaptor on L1 with negative on T34 and positive on Terminal T35 can be used for this test.


The list number to Alert can point to any list number 1 to 63. As for other junctions, the number can be replaced with any valid direct command when wanted.
So [Pw N53 =R4 600 s] will write direct command "R4 600 s" into list number position 53.
This could switch R4 On for 10mn and send a status message if L1 has no power 65s after that a Junction has switched R1 On.

Actual configuration of Restriction and Control parameters are listed and visible in info message J? [Pw J?] and Jls [Pw JLS]. Alert message a) Rn ON but No Ln Power after; XX sec! will also include parametres JR1/2 R SSS N and controller time at the Alert.

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* Alerts are messages sent when the Low/High configured Low/High edges are exceeded. They are simply setup with the function name followed by the Low and High parameters. So for example, for V1 to 11 and 14 volt, [0000 V1 11 14] See also V2, T1, T2, GL and YG. All received Alert messages start with; a)
Warning messages are optionally sent by the Junctions (see just above) that can switch any output. They will notify of an junction action when wanted, to any number of the list N. All received Warnings will start with; w)
Notice that when the GXL8 SMS controller is able to send 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 or O+ sends Alarm messages. Alarm messages start with; !ALARM!

So besides the status, info's and configuration messages received on request, we can get three kind of messages from the controller; Warnings, Alerts and Alarms. Not to be confused at controller setup!
For the same V1, V2, T1, T2, Gl, and Yg event, an Alert as explained below and a Warning as seen above, can be sent. So obviously, Alerts and Warnings are setup with different ans specific parameters...  Back to top

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Voltage V1 will reflect the battery supply voltage at Terminal (T31). Normally a battery or else from 8 to 16Vdc maxi can be connected to also feed the controller via this supply input.The other supply input is the 240/12VDC adaptor. V2 will be externally connected at (T33), that can measure from 0 to over 100Vdc. Keep this input lower than 150V to prevent any problems!

Command [Pw v?] will show the voltmeter function info's.

Pw V1 L H           The way to setup V1 Low High edges
Pw V2 L H           No switching for V1,2 L/H see JV1,2
V1 10.9 10.5 14.2   Actual Volt, Low/High for V1
V2 57.9 47.0 56.5   Actual Volt, Low/High for V2
<V> SMS N1          Alert to N1 if <Low or >High
V1o 0               Offset. [Pw V1o -0.3] will show 10.6
V2o 0 N10           Offset. [Pw V2o 0.4]. Second Alert Number.
See; JV1 JV2        Junction (Output + Alert) with V1 and V2
V1+ V2-             [Pw V1+] or [Pw T2-] to/from status
Low/High=0 No SMS   No Alert if edge unprogrammed or 0.

An Alert message is always sent to N1, but a second Alert can be sent when wanted. As an example, command [Pw V2N 10] will make send a second Alert to number N10 from the numbers list.

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    T  Temperature Alert and setup for T1 and T2.

The thermometer function can automatically send you an Alert when exceeding lower or higher programmed limits. A Low/High Temperature Alert is programmable with a single SMS command; [Pw T1 18.4 19.8].
Command [Pw T1N 22] will send a second Alert to number 22 from the numbers list when T1 <> are exceeded.  See JT1 and  JT2 for any switching and Alert at Temperature values.

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    AC  Réseau/Grid/main Warning and setup on (T29+) (T30-).  Use JAC.

The controller can be powered in two ways; by the main grid power via an adapter 220AC to 12Vdc (T29) and possibly a battery (T31) or any other power source (from 8 to 16Vdc). The double power source make that if the AC grid fails, the controller can go on with the battery supply and will still be able to switch an output (start/stop), send warnings and alerts messages...

For a generator set control and command, with NO grid available, the adapter can be plugged into the generator high voltage output 100 to 270VAC and its 12Vdc output to supply Terminal T29+ and T30-. This way an warning can be sent, may the generator high voltage fail or by engine start/stop with Junction JAC.
The 12V generator battery will be connected to T31+ and T32-. The engine battery can be monitored with the controller's internal Voltmeter V1 via input T31 and V1 function can send an Alert messages. For example command [PW V1 10.5 14.5] make Alert below 10.5 and above 14.5.
JV1 function can also switch any required device and optionnally send a Warning, may the battery voltage get too low or too high (see JV1).

For a backup generator, Junction JAC can monitor the AC main grid trough the adaptor connected to supply Terminal T29+ and T30-  making possible to automatically start the generator after grid failure and stop after grid recovery. Both start/stop can occur after a configurable delay from 0 to over 4mn.
When the adaptor is controlling the main AC grid, we can use another adapter plugged into the backup generator outlet and connect it to L1, L2 or L3 and so if wanted also get a warning when the generator give power. We also can use the optional 380 to 3x8VDC adaptor that will be connected to the controller RST (L1, L2, L3) inputs. See RST below...
JAC, JL1, JL2 and JL3 have identical functionality but only JAC can feed the controller so the controller will also need to be powered via the 12V Bat inputs T31+ and T32-.  Here also, advantage will be made using fontion V1 to monitor the generator batterie and possibly  JV1.

For a generator control, any input i/A1-i/A6 can be used for oil and other control (see Ji1-Ji6) while output Relais Rn can start and/or stop the engine. In fact, the controller has enough possibilities for a full generator set control and no other hardware needs to be added.

The controller power supply will need about 30mA in standby mode (A On or A Off,  with Relais Off) but sometimes current pulses upto 1 Ampère when transmitting. So only adequate power supply should be connected (the delivered stabilized adaptor!). If On, an output Relais take about 20mA.

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a) Level LOW!         Or HIGH! Alert to N1 (+ N33?)
Now; 3.9%             Actual value
Low limit; 4.0%       Low edge setting
High limit; 96.0%     High edge setting
Use; Pw s or G?
Not from;             Its a Alert! not JGL warning
JGL 5.0% 95.0% 5 18   Infos over corresponding jGL
12:00                 Controller Alert time.

[Pw G?] shows following infos and settings.

Pw Gl L H             Set low and high like [Pw GL 4 96] 
Pw Glo offset         Already calibrated, but see below.
Gauge/Level.          Now, setting of low and high edges
GL 43.7% 4.0 96.0     N33 is a second alerte number!
GLo 0% N33            Offset. [Pw GLo 1.1] will show 44.8%
GlB 14                Gauge data for tank empty, 0%
GLT 1005              Gauge data for tank full, 100%
data= 445             Actual Gauge/sensor data.
GT 1                  Sensor type, [Pw GT 1] Analog 0-5V
See also JGL.         [Pw Gt 0] disables the sensor.
Gl+                   [Pw GL+] add it to status ([Pw s])
Low/High=0 No SMS     No alert for edge at 0.