I'm having two Premium PLCs with ethernet module.
I want to communicate with both PLCs through ethernet.

How do I do it?

 

Communication via TCP is very simple when using the I/O scanner of the PLC's. Just fill in the slaves IP address, how often you want to read or write (Repeate Rate) and the slave registers location

 

READ_VAr, or WRITE_VAR if conditional. IO scanner if continous. Read Communications manual supplied with PL7 / Unity s/w.

 

You have not mentioned what programming software or specific Ethernet modules or processors that you are using.

Depening on your specific hardware and software you can use the following:

1. Use the READ VAR and WRITE VAR EFB (All Controllers have this functionality)

2. Use the Ethernet I/O Scanner Function

3. Use the Gloabal Data FunctioN

 

You may use I/O SCANNING. It's very easy to configure and it's not necessary to write any line of program (like read_var or send_req etc.)

 

Connect both PLCs to a common ethernet switch or hub.

 

Dear friend,

Thank you for your reply.
I'm using Premium PLC's TSX 573623 with PL7 Pro V4.4. 7 ATV71 drives also communicating with each PLC, i.e. PLC to PLC communication by using ethernet and PLC to DRIVE communication using CANopen.