Modbus tcp client app in plcnext engineer

image.pngDear Experts.

I knew that from PLCnext Engineer from Version 2024.6, it support Modbus TCP Client feature which no need to use modbus library from PLCnext Store.

I Created Demo Project for this new feature. ( See picture)

It’s so great. I could read and write data from Modbus TCP Server Device.

But I have a concern, please support me.

With Read Direction, everything was OK.

But in Write Direction, PLC always write value to modbus server.

It case Problem that when PLC restart, the the Write direction - Variables will return to zero, PLC will write these zero to Modbus Server.

I’m finding a solution in order to PLC write data to Modbus Server device with User-condition.

Many Thank.