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I would like to explore the idea of using Ethernet I/O modules to bring in non-critical signals from remote instrumentation. Searching the internet returns an overwhelming list of options. The problem is that most all of the Ethernet I/O modules that I've looked at communicate using complex protocols such as MODBUS etc...
I'd like to use a simple Telnet connection or WinSock to do read/writes to the I/O's IP, Port and I/O address. It seems that this should be all that's required. Using protocols such as MODBUS will require that I purchase a MODBUS ActiveX or use some other commercial software package to handle the communication... or God forbid, code the MODBUS protocol into my applications. This seems like complete overkill and needless complexity. Is there a simple Ethernet I/O module on the market? I'd prefer that It be DIN rail mountable and have a rugged enclosure vs an open circuit board.
I'd like to use a simple Telnet connection or WinSock to do read/writes to the I/O's IP, Port and I/O address. It seems that this should be all that's required. Using protocols such as MODBUS will require that I purchase a MODBUS ActiveX or use some other commercial software package to handle the communication... or God forbid, code the MODBUS protocol into my applications. This seems like complete overkill and needless complexity. Is there a simple Ethernet I/O module on the market? I'd prefer that It be DIN rail mountable and have a rugged enclosure vs an open circuit board.