sopenco
Member
I'm working on my first redundant system, and I'm having some difficulties in getting everything up and running, synced and communicating. Here is the setup of the system:
There are three racks. On each of the first two, there is a 1756-L72 processor, an EN2TR network module and an RM redundancy module.
On the third rack, there is another EN2TR module and all of the various IO modules.
The problem I'm having is that in RSLogix 5000 when I connect up to the primary CPU, I'm seeing the notorious exclamation marks on the EN2TR's on racks #2 and #3, as well as the devices on each of these racks, albeit there are no major or minor faults. The primary PLC (of course) cannot read or control the IO modules and the CPU's are out of sync.
My first question: is this a viable setup?
My second question: what do I need to do to make it work, assuming this configuration IS in fact viable.
I've been looking through Rockwell manuals for redundancy as well as the EN2TR, and as of yet cannot find guidance.
Any help would be greatly appreciated!
There are three racks. On each of the first two, there is a 1756-L72 processor, an EN2TR network module and an RM redundancy module.
On the third rack, there is another EN2TR module and all of the various IO modules.
The problem I'm having is that in RSLogix 5000 when I connect up to the primary CPU, I'm seeing the notorious exclamation marks on the EN2TR's on racks #2 and #3, as well as the devices on each of these racks, albeit there are no major or minor faults. The primary PLC (of course) cannot read or control the IO modules and the CPU's are out of sync.
My first question: is this a viable setup?
My second question: what do I need to do to make it work, assuming this configuration IS in fact viable.
I've been looking through Rockwell manuals for redundancy as well as the EN2TR, and as of yet cannot find guidance.
Any help would be greatly appreciated!