Hi all.
Existing IOFlex drop with 4 modules installed in it.
I see 2 bytes at the beginning that looks like it's statuses from the rack before the first DI Module mapping starts, and this is what I'm seeing in the PLC:
Local:5:I.Data[0].0 Flex IO Node 1 Module 0 Status
Local:5:I.Data[0].1 Flex IO Node 1 Module 1 Status
Local:5:I.Data[0].2 Flex IO Node 1 Module 2 Status
Local:5:I.Data[0].3 Flex IO Node 1 Module 3 Status
It looks like those 4 bits are the failure status from each module. Then I see the first DI coming in at Local:5:I.Data[0].16.
Any idea what else can / could be pulled from the reminder of that structure (4-5-6-7-8-9-10-11-12-13-14-15)? I don't know if more than 4 modules can be installed in that rack, so I'm assuming it would be statuses for more modules for now.
But basically, what I'm really trying to figure out is to monitor if the communication is good with the rack (1756-ADN) itself, because I won't be receiving a module failure if the rack is not communicating.
There are some "standard" statuses from the slot structure, but I'd like a little more than just that.
Thanks.