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from the Automation List department...
Communication between Twido PLC and remote PC over GPRS network
Communications topic
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Posted by Jaka Dolenec on 6 January, 2008 - 5:21 pm
I have WaveCom GPRS modem (with TCP/IP stack) witch is connected with Twido PLC (RS 232). On the
other side is a PC with SCADA application.

My Twido PLC with modem act as the TCP client (RTU device). When my RTU attach to GPRS network it initalise a TCP socket with my PC (to defined port number). My PC with scada is listening on that port. And when the connection is made i can get the IP addres of RTU and IMSI ID.

I wrote a service witch is checking the IP of my RTU (SIM card with dynamic IP) when there is made a reconnection on GPRS network

with the second service i would like to collect data from Twido PLC memory with OPC server.

And i am asking if i could use a OPC server to colleting data from memory words?

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