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Showing results for tags 'danfoss'.
Hi all, it's my first post but I guess not least as I have a project to do using my Unitronics V1210 with CANOpen and 2 ports for Modbus RTU on board. I want to establish basic communication with my VFD (Vacon 100 / now Danfoss company) by Modbus RTU. 1. I bought RJ11 six pin plug and prepare junction so I have two cables - yellow at PIN1 and red at PIN6. 2. I connected PLC (Port 1) to VFD (A,B inputs) 3. I wrote a basic program to read the register 2101 (which is not 0 for sure) and... nothing happens. No communication. What I have checked: - Ports termination (set to RS485