I have 2 Quantum PLC's on the same network and I need to message some I/O. How do I do this using the TCP_IP_ADDR and READ_REG blocks in unity pro? How do I know what I should set MAP_IDX to in the TCP_IP_ADDR block? Thanks for any info.

 

With 2 quantums you map index will be 0. its like an offset setting. your slot ID will be 254 if you are communicating over built in ethernet on a CPU if you are using a NOE card the slot id will be the slot the NOE is sitting in.

Regards
Brendon