Posted 11 Jan 2021 (edited) I need to control two Vacon100 / Danfoss AC drives via ModbusTCP from the CP1L controller. How to make a communication frame to transmit the operating frequency and receive data such as current from the inverter? The drives have IP 192.168.250.30 and 192.168.250.40. Can anyone help me how to build a communication frame? Edited 11 Jan 2021 by Wojtiqs Share this post Link to post Share on other sites
Posted 11 Jan 2021 @Wojtiqs You should be set each inverter to be Modbus TCP first. For CP1L programming you should check at OMRON website that have Modbus Function block to use with PLC as link shown below. https://www.myomron.com/index.php?action=kb&article=1245 Share this post Link to post Share on other sites
Posted 11 Jan 2021 (edited) I have already activated ModbusTCP on the inverters. The problem is, I've never done this with communication frames and I don't know how to do it. Could someone show me step by step? Edited 11 Jan 2021 by Wojtiqs Share this post Link to post Share on other sites
Posted 11 Jan 2021 Use the Modbus function block as above - it works with a bit of manipulation. Share this post Link to post Share on other sites
