Hi
Just trying to connect with Teco VFD using USB /Rs485 FTDI cable.

I have a program that will control VFD but all I'm getting is a message about communication failure No response from the controller.

I've tried using different Modbus software to connect but I'm not getting anywhere.

Communication settings on the controller are set exactly like in the program.

I'm new to this don't really know how to test the cable or the VFD (new)
Could communication cable be faulty(new from FTDI website)

Any input on Modbus would be appreciated.

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