THOMSON MEC 310 - APLLICATION NOTES EXTERNAL I-O MODULES, Инструкция по установке и эксплуатации

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MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20 Page 74 THOMSON TECHNOLOGY
GSM communication
GSM communication can be used for 2 purposes:
1.
Sending SMS alarm messages to up to 5 different mobile phones. The messages will be sent
in clear text, representing the alarm in question (e.g. “Overspeed”) and an ID. The ID
represents the total numbers of sent SMS.
2.
Communicate with the MEC 310 TSP 300 software.
Connection:
The connection is based on an RS232 connection to a GSM modem via the service port on the
MEC 310. Since the connection on the MEC 310 is a TTL communication, the SSP interface box is
needed to convert the signals to RS232. The SSP connects via a cable with SUB-D 9-pin female
connector on the modem side.
We recommend using Siemens MC35 modem. The easiest way to get the modem is to purchase it
through a local dealer. The SIM card needed comes from your local mobile net provider. The
easiest way to set the PIN code in the modem itself is to mount the SIM card in a mobile phone and
change the PIN code there. The SIM card will remember the PIN code when it is installed in the
modem.
Should an alarm occur during the interruption, the multi-line unit will re-transmit it when the modem
starts again, so no messages are lost.
The setting of communication protocol ASCII or RTU can be set in the display.
Siemens recommends a short power interruption (30 sec.) once a day to prevent
lock-up of the modem. The easiest way to do this is to use a 24 hour watch.
GC-1
Modem
Service port
Mobile
phone
SMS alarm
message
Telephone
line
PC with
TPS 300
RS232
connection
SSP
MEC 310