https://forge.codesys.com/forge/talk/Runtime/thread/7d36431371/2020-02-27T15:12:44.953000ZRecent posts to PFC200 - Modbus RTU - RS4852020-02-27T15:12:44.953000Z2020-02-27T15:12:44.953000ZDamian7546https://forge.codesys.com/u/damian7546/https://forge.codesys.com4f30463500a468c0bf3ff8fc3785d686b0e554aa

<div class="markdown_content"><blockquote> <p><strong>Edwin Schwellinger hat geschrieben:</strong><br/> Hi,<br/> you need to map variables or switch to always update for testing purpose.<br/> We see on your values the are 'light grey' - means not updated.<br/> BR<br/> Edwin</p> </blockquote> <p>thanks it works.</p></div>

2020-02-27T15:12:44.272000Z2020-02-27T15:12:44.272000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com47efaebd2b6ce68acf45c2753d6a3feafb2a0fc8

<div class="markdown_content"><p>Hi,<br/> you need to map variables or switch to always update for testing purpose.<br/> We see on your values the are 'light grey' - means not updated.</p> <p>BR<br/> Edwin</p></div>

2020-02-27T15:12:42.376000Z2020-02-27T15:12:42.376000ZDamian7546https://forge.codesys.com/u/damian7546/https://forge.codesys.comfd0bbff221ec628e855996c6cf9c96e83e789fd0

<div class="markdown_content"><p>is better:<br/> Time to time in "byModbusError " = UNDEFINED but usually is RESPONSE_SUCCES.</p> <p>I tried pooling my slave device by other master device with parameter:<br/> 9600/8/N/1 , Slave ID=2, Function=3, Offset =31, lenght =10. an I got response 12,12,22,11,33 ..<br/> When I set above parameters in WAGO /Codesys the slave not response . When I change function code to 4 i Get response but only 0,0,0,0, like in attachment picture....</p> <p><img alt="IMG: zdj_test.jpg" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=4936"/></p></div>

2020-02-27T15:12:41.703000Z2020-02-27T15:12:41.703000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com7aa19063eb2d1338ac0f2c1ec34a49d21b2da1d0

<div class="markdown_content"><p>Hi,<br/> 1. check wiring<br/> 2. check baudrate in CODESYS under 'Modbus_Com'<br/> 3. Check Slave Diagnosis in CODESYS see screenshot</p> <p>BR<br/> Edwin</p> <p><img alt="IMG: ModbusSlaveDiag.png" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=4935"/></p></div>

2020-02-27T15:12:41.024000Z2020-02-27T15:12:41.024000ZDamian7546https://forge.codesys.com/u/damian7546/https://forge.codesys.com35991a00590a235f8f46070e16a9c14ab46629f4

<div class="markdown_content"><p>Only result:</p> <p><img alt="IMG: test_rs485.jpg" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=4931"/></p></div>

2020-02-27T15:12:39.221000Z2020-02-27T15:12:39.221000ZDamian7546https://forge.codesys.com/u/damian7546/https://forge.codesys.comac46accce871f5f88ad64ce2119b7119cc2bd1ab

<div class="markdown_content"><p>Probably it is ok:<br/> I checked and the rs485 is selected.</p> <p><img alt="IMG: test_rs.jpg" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=4930"/></p></div>

2020-02-27T15:12:38.475000Z2020-02-27T15:12:38.475000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.comacd69a1f430d74c9f68e5546961a685561e6a391

<div class="markdown_content"><p>Hi,<br/> use the plc shell...</p> <p>BR<br/> Edwin</p> <p><img alt="IMG: serialmodePFC.png" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=4927"/></p></div>

2020-02-27T15:12:37.726000Z2020-02-27T15:12:37.726000ZDamian7546https://forge.codesys.com/u/damian7546/https://forge.codesys.com28d53eeef9b72a7c65357168b4c6f80b5326ab1c

<div class="markdown_content"><p>Hi,</p> <p>Can anybody write step by step what can I do to run Modbus Master in my WAGO PFC200 ?<br/> My slave is still : Not running as in attachment picture.</p> <p>I should set RS485 interface , where ?</p> <p><img alt="IMG: wago_modbus.jpg" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=4926"/></p></div>