https://forge.codesys.com/forge/talk/Runtime/thread/935429da2b/2023-03-05T08:39:00.159000ZRecent posts to PFC200 Modbus RTU2023-03-05T08:39:00.159000Z2023-03-05T08:39:00.159000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.comeb867ed92e45f8cd31b46b40711c523b9ae32551

<div class="markdown_content"><p>either wiring or end resistor on RS485</p></div>

2023-03-04T22:22:23.622000Z2023-03-04T22:22:23.622000Zpawelpol9https://forge.codesys.com/u/pawelpol9/https://forge.codesys.com05f8d95d719b17ad2cbb1912742ec838abf5143f

<div class="markdown_content"><p>The problem with no response within the specified time has disappeared. Instead, the error "Request_crc_fail" appeared. What could be the cause of the checksum error.</p></div>

2023-03-03T17:51:14.140000Z2023-03-03T17:51:14.140000Zpawelpol9https://forge.codesys.com/u/pawelpol9/https://forge.codesys.comef33edbe9c5c4a5cf77df98b2d4933e18f8092c6

<div class="markdown_content"><p>The message changes every few seconds.</p></div>

2023-03-02T22:12:52.384000Z2023-03-02T22:12:52.384000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com8c7b47c796587529cdcbf181c7e5d71cd6b9a0f6

<div class="markdown_content"><p>PFC side is ok, check your slave side..copy the slave name to the watch window to see the diagnosis of the fb</p></div>

2023-03-02T20:55:33.216000Z2023-03-02T20:55:33.216000Zpawelpol9https://forge.codesys.com/u/pawelpol9/https://forge.codesys.comdf723734c6b8866b5546ade77e9f5f0bc1f3e453

<div class="markdown_content"><p>Does anyone have any idea why this port is not working? What should be the entry in /etc/CODESYSControl.cfg <span>[SysCom]</span> ?</p></div>

2023-03-02T17:27:46.398000Z2023-03-02T17:27:46.398000Zpawelpol9https://forge.codesys.com/u/pawelpol9/https://forge.codesys.come554468371a3815bbb86bb7f13b6fd2c60c62765

<div class="markdown_content"><p>Thank you, I changed to rs485 but it still doesn't work.</p></div>

2023-03-02T16:36:12.066000Z2023-03-02T16:36:12.066000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com2f344d4d66cb2f813f93cd7077ee444678179a2f

<div class="markdown_content"><p>If you are on PFC200 SL in the plcshell + restart the device</p></div>

2023-03-02T13:16:20.466000Z2023-03-02T13:16:20.466000Zpawelpol9https://forge.codesys.com/u/pawelpol9/https://forge.codesys.come3d3dd627bbcb11d93a9d48b6616c99eef0cfa89

<div class="markdown_content"><p>Hi. I searched many forums but couldn't find an answer anywhere. I am trying to connect the Wago pfc200 750-8212 controller to the air handling unit. When I was configuring the MOdbus RTU connection in eCockpit everything worked. When I want to do the same in Codesys I get a message that the port is not working. Maybe the reason is not setting communication via rs485? But I don't know where it is set.</p></div>