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Cohen

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Cohen


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RE: Trouble communicating with VFD over RS-485 (Modbus) – looking for guidance

Posted By Cohen Jan 29, 2026 12:27:44 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Hey, i am using the PLANET IMT2100t RS-485 to TCP\IP Gateway which is a Modbus RTU device, how can i analyze the situation with a scope? -------------------------------------------

Trouble communicating with VFD over RS-485 (Modbus) – looking for guidance

Posted By Cohen Jan 28, 2026 12:51:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Hi everyone, I'm having difficulties establishing reliable RS-485 communication with a VFD and could use some guidance. Setup: VFD: PowerFlex 4M Protocol: Modbus RTU over RS-485 Master device: USB TO RS-485 AND ALSO RS-485 TO TCP\IP GATEWAY Baud rate : 9600\19200, 8N1 Network topology: ...