https://forge.codesys.com/forge/talk/Engineering/thread/46f17cd134/2020-02-27T13:47:59.618000ZRecent posts to Modbus TCP Slave2020-02-27T13:47:59.618000Z2020-02-27T13:47:59.618000Zpetergrotehttps://forge.codesys.com/u/petergrote/https://forge.codesys.com7b50e0c40b39e91e483359215c89941f0147a2d0

<div class="markdown_content"><p>Hi Edwin,<br/> Thank you for your feedback, but still I am not able to have it work as expected.</p> <p>I have attached my project and some PLC Modbus Document and I also add some commend:<br/> 1. My Raspberry Pi is licenced, and I use the newest package 3.5.9.10<br/> 2. I have not licenced the Modbus TCP Master.<br/> 3. I want to read i the PLC node ID on Register SR29 = 34029 (Value=20)<br/> 4. I want to read a timer in the PLC on register R30 = 43030 (Value between=0-7000)<br/> 5. I want to read the timer setpoint in the PLC on register R33 = 43033 (Value=7000) </p> <p>I have tryed to setup the modbus TCP Slave with channels, but not able to see any values</p> <p>Please let me have you feedback.</p> <p>Best Regards<br/> Peter Grote</p> <blockquote> <p><strong>Edwin Schwellinger hat geschrieben:</strong><br/> Hi Peter,<br/> a starting point could be attached example..<br/> BR<br/> Edwin</p> </blockquote> <p><img alt="IMG: 2016" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=2029"/></p> <p><a class="" href="https://forum.codesys.com//download/file.php?id=2030" rel="nofollow">project001_20160728_ModbusTCP.project <span><span>[346.86 KiB]</span></span></a></p></div>

2020-02-27T13:47:59.561000Z2020-02-27T13:47:59.561000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.comb8be05283d7da84ead95783f6cc836bc74a2664a

<div class="markdown_content"><p>Hi Peter,<br/> a starting point could be attached example..</p> <p>BR<br/> Edwin</p> <p><a class="" href="https://forum.codesys.com//download/file.php?id=2027" rel="nofollow">ControlWinModbusMasterSlaveCommunication.project <span><span>[76.97 KiB]</span></span></a></p></div>

2020-02-27T13:47:59.512000Z2020-02-27T13:47:59.512000Zpetergrotehttps://forge.codesys.com/u/petergrote/https://forge.codesys.com44c94a72b56f3d900b04aa7f644a83ad1ccdc393

<div class="markdown_content"><p>I am connection my RPi 2 and an PLC. RPi 2 is the Master and the PLC as the Slave and I have my setup correct, but I have a hard time understanding how to make a channel when I need to read ex. Digital output in the PLC. The PLC ouput is from 00001 and is handled by the funktions code 1 and read some register 34029 Modbus offset 4000. Can anyone help me to understand how to make a channel setup.</p> <p>//Peter</p></div>