I have 2 AB7072 communicators that I’m connecting to a DeltaV EIOC.
Configured input/output assembly instances as 100/150 and sizes aligning with the subnetwork monitor.
1st one (RS485) has 8 bytes input and 2 bytes output and works fine.
2nd one (RS232) has 23 bytes input and 0 bytes output and does not communicate with the EIOC.
Wireshark trace shows the error: Extended Status: Invalid O->T size (0x0127)
Any idea what the issue could be?