Write set point to VFD (Beckhoff)


I am a beginner at PLC programming using structured text.

I have a project on controlling a VFD. It has a read and write function using modbus RTU. I am already done with reading the parameters using modbus registers of danfoss FC-202. Right now I am having a hard time writing the set point on the vfd as I can't find any manuals or tutorials using it.

Here are the fbd i am using.