CI867 MODBUS TCP IP in Structureed Text Programming
I want to communicate the 3rd party PLC system with Modbus TCP IP communication and programming in structure text language.
Is it possible to access variables without using MBConnect,Read, Write.
Please help me and the format for addressing the same.
Any application backup is really helpful for me.
Voted best answer
Modbus TCP/IP communication you can use structure text to program.
Before doing finalise that whether 800xa CI867 card is master or Third party plc is master?..
If CI867 is master then use the register address details accordingly with MBtcpconnect and read bock.
if Third party plc is master then you need to use access variable to transfer the signals from 800xa to third party plc.