https://forge.codesys.com/forge/talk/CODESYS-V2/thread/2764ed70ae/2025-09-01T09:16:56.838000ZRecent posts to Modbus RTU over 750-6522025-09-01T09:16:56.838000Z2025-09-01T09:16:56.838000Zem1681https://forge.codesys.com/u/em1681/https://forge.codesys.com125e6b83cf99ec77882604c80693aeff29401fd0

<div class="markdown_content"><p>Hi,</p> <p>It's my first time operating in Codesys 2.3, but I have done a good amount of Codesys programming, so I'm a little familiar. I haven't done a lot of RTU, but a lot of Modbus TCP.</p> <p>I don't have the PLC in my reach at the moment, but I'm trying to be a little ahead. <br/> We're adding the 750-652 module to read energy from a flowmeter over RTU. There will only be 1 slave.</p> <p>I attached pictures of my current hardware, PLC code and the register datasheet.</p> <p>I'm uncertain if this will work.<br/> Any help or clarification on how things work will be greatly appreciated.</p> <p>Thanks in advance.</p></div>