modbus cp1l-e and v1000

[Migcax]

Hello , i´m not any experience in modbus comunications and try make comunications modbus between cp1l-e and 2 inverters v1000 , i make a lot of invencions and its work ok with fb inv02_refresh, and i comand and write frequenci but when i  put fb to read parameters and read status lose comunications and do not work any more .can anyone give me help to repair to read output frequenci and output amperage inverters

thanks

CP1L_E_V1000_2inv.cxp