Posted 25 Nov 2015 Hello, I have the following problem, I have two PLCs FX3U-16M, with a communication module FX3U-ENET-Port502 in both PLCs have built a server under Modbus TCP and a client to read the registers of the other PLC, my code of Modbus TCP client presents the error code C017 and errors in the channels for reading and writing the registers. Of course grateful for his help. Share this post Link to post Share on other sites
Posted 17 Dec 2015 OK, you've used a Server on one side, and a Client on the other side right? Can you post the projects (as a .zip file)? Share this post Link to post Share on other sites
