modbus address register of inverter 3g3tc

[too_high]

Dear all, I have an Omron inverter 3G3TC-AB004, which apparently there is not much information about it online.

I have successfully connected this inverter with Modbus, and able to change some of its parameters from Modbus Poll, yet I still haven't found the address for the Start and Speed Command. I've tried to set the frequency from modbus but unfortunately it's a read only register.

Is it possible to control this inverter from modbus or it's only useful for monitoring the inverter status?

Thanks in advance.

 

Edited February 11, 2022 by too_high

[rualcosi]

With Modbus Poll try f4 instead of f3.

F3 = function 3. f4 = function 4.

Try with f4, which should let you write to the registers one by one, until you find what you need.

I hope I helped and that you find what you need.