No Communication between a Twido plc to a SVX9000x VFD

Hi guys,
im trying to read and write to a VFD from a Twido PLC thru ModbusTCP.

TWIDO twdlca-e40drf
VFD Cuttler-Hammer SVX9000x

I want to read registers 42101 (status control word) and 42103 (Frequency Reference)

And also write to 42001 and 42003.

I'm trying with the comm macros in Twidosuite v2.2. I set my read macro to poll "C_RDNW_1_2 := 2000"

I've subbed #2000 for 2001 also. being that twidosuite talks in %MW's which start at 0 but the drive talks in 4xxxx which start at 1 for addressing. Ive also tried 16#835 for a hex version of the address but nothing is coming up in my animation tables.

I also have a Magelis HMI which I'm able to either address in 4xxxx or in %MW. With the HMI TCP driver set in 4xxxx, I'm able to write and read registers in the VFD.

On the VFD side I have the remote control and Frequency Reference set to FieldBus.

Does anyone have experience in talking to these two types of devices?

If I cant write directly I will have to go through the HMI to convert but I would really like to be able to access the VFD directly from the Twido Plc.

Thanks
Jeremi

You try read modbus addresses 42101 to 42103 from VFD. I think that comm macro for reading should then be:

C_RDNW_ADDR1_0 := 2100
C_RDNW 1 3

You have writed to your post C_RDNW_ADDR1_0 := 2000 ???
If this is also command which you have on twido, then twido read registers 42001..42003 from VFD.

Yes I should be able to read both the 2001 and 2101 with the comm macro. I can read and write to other twido plc's no problem. But no reply from the VFD.

Anyone with experience with these two devices?