https://forge.codesys.com/forge/talk/Engineering/thread/a7848359e2/2022-07-08T12:12:12.921000ZRecent posts to Modbus RTU Analog Input2022-07-08T12:12:12.921000Z2022-07-08T12:12:12.921000Zfabio-outlandhttps://forge.codesys.com/u/fabio-outland/https://forge.codesys.comca26a416409f74fa3091404688837dda9d42d3bc

<div class="markdown_content"><p>Hello,</p> <p>I'm trying to read analog input from modbus RTU card. Impossible to read all 8 channel.</p> <p>The instruction I want to send for data reading is:</p> <p>Send: 01 03 00 00 00 08 44 0C</p> <p>On the slave modbus module the modbus channel is set:</p> <p>Reading holding register (code 3)<br/> Trigger= cyclic<br/> time of cycle 100ms<br/> offset 0x0000<br/> length= 8</p> <p>Where I'm wrong?</p> <p>Thanks you for your help<br/> Fabio</p></div>