This temperature control can also return a message: When exceeding the MAX temperature or under-
cutting the MIN temperature, the module can return an automatically generated SMS, an e-mail or a fax
with the message text ALARM TEMP.
6.15 Response
The GSM module can send a response SMS stating the statuses of all inputs and outputs.
For this purpose, an SMS or e-mail is sent to the module with the entered message text, e.g.you send
the SMS
This text must also always contain 8 characters. If the entered message text is shorter, you have to
enter blanks (marked with a star here: RESPONSE*).
The response is sent to the number that sent the SMS.
„Always respond with password" means that everyone sending the password receives a response.
Example:
You send an SMS to the module with the text RESPONSE .
The module responds with:
CONRAD GX106
T1=23C,T2=27C,
TMP1-4=L,L,L,L,
ON:IN1-2=H,L,
SMS1-4=H,L,L,L,
ADC=0mV, PWM=128,
CALL=L,LEVEL=9
-END-
This means that the temperature sensor at connection T1 has measured 23°Celsius and the sensor at
T2 a temperature of 27° Celsius and that none of the 4 temperature outputs (TMP1-TMP4) has switched
on; both optocouplers IN1 and IN2 are HIGH, the SMS1 output is activated the ADC input is 0mV and the
PWM output is 128 (50%), INCALL was not activated and the reception level is 9 (meaning excellent
reception).
6.16 Error message
Additionally, the module can return an error message with the stated message text in case it receives
an unknown or wrong command (e.g. ERROR). This makes sense for the fast detection of wrong entries
(e.g. in case of a typing error). The response is sent to the number that sent the SMS.
Example:
41