Tunnel - An advanced example for reading 2 serial devices using a single modem/SIM and simultaneously using GPRS connection and GSM calls. There is additional serial tunnelling when there are no GSM/GPRS
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Automation-Talk | All About Industrial Automation: Delta PLC Interfacing with GSM Module
END OF LIFE : PLC MAX H04 con GSM communicator (SMS, CLIP) + Display, tasti
SR2MOD03 - Modem gsm/gprs | Schneider Electric España
Westermo GDW-11 Art No. 3615-0001 GSM/GPRS Modem PLC | eBay
Buy Plc-gsm Communication Solution Online at Best Prices in India | GlobalLinker
Wifi PLC - Sensorstecnics, Honeywell
Ipack
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Mini-PLC PL-100 | VMC
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