andybdjuk Posted March 12, 2010 Share Posted March 12, 2010 Hi maybe you can help me out for the weekend, I am trying to read and write modbus data to a Crouzet TCP/IP module. Using Quickmod I seem to be in communication with the module on port 502. From Quickmod I get the following:- Tx \x01\x03\x00\x00\x00\x03\x44\x31 RX \x01\x03\x00\x00\x00\x03\x44\xBA\x03 I just seem to get time out errors. I have attached the comms help if you can give me any pointers Andy Communication_Via_Ethernet_Extension.pdf Link to comment Share on other sites More sharing options...
AzeoTech Posted March 12, 2010 Share Posted March 12, 2010 Did you mean to select ModbusRTU? Most Ethernet devices use Modbus TCP. The response from the device is incorrect, thus the timeout. Link to comment Share on other sites More sharing options...
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