Question: I have a PLC with a RS232 connection this PLC are connected to the internet via a ADSL cable connection and with a converter from TCP/IP to RS232 is it possible to establish a terminal connection
The converters take what comes in on the telnetport 23 stripe it for the TCP/IP headers and send the rest of telegrams out on the converters RS232 port to the PLC
What I now want is to make this connection via GPRS, I have found an bought a Simens MC35 modem which have the capability to connect to the GPRS net, but I think that the modem is without a TCP/IP stack, and I therefore need some hardware to set in between the modems RS232 port and the PLCs RS232.
Is there any body here who knows how this can be done