Partner ControlNet Status (Redundancy)
Partner ControlNet Status (Redundancy)
(OP)
Hello,
I have a running ControlLogix Enhanced redundancy system: The first chassis has in Slot 0 the Controller, in Slot 1 the Redundancy Module and in Slot 2 a CNB Module (node 3). The second chassis has the very same configuration. The third chassis has in Slot 0 a CNB Module (node 1), in Slot 1 another CNB Module (node 2), in Slot 2 a DHRIO Module, in Slot 3 another DHRIO Module and in Slot 4 a 16 Digital Input Module.
What I don't know how to do is getting the entry status of the CNB located in the chassis that is running as Secondary.
Can anybody give me any clue?
Thanks!
Best regards
Fernando
I have a running ControlLogix Enhanced redundancy system: The first chassis has in Slot 0 the Controller, in Slot 1 the Redundancy Module and in Slot 2 a CNB Module (node 3). The second chassis has the very same configuration. The third chassis has in Slot 0 a CNB Module (node 1), in Slot 1 another CNB Module (node 2), in Slot 2 a DHRIO Module, in Slot 3 another DHRIO Module and in Slot 4 a 16 Digital Input Module.
What I don't know how to do is getting the entry status of the CNB located in the chassis that is running as Secondary.
Can anybody give me any clue?
Thanks!
Best regards
Fernando





RE: Partner ControlNet Status (Redundancy)
RE: Partner ControlNet Status (Redundancy)
Greetings
RE: Partner ControlNet Status (Redundancy)
This is the redundancy manual. It show examples of how to get redundancy status information. (It is via the GSV instruction).
RE: Partner ControlNet Status (Redundancy)
RE: Partner ControlNet Status (Redundancy)
RE: Partner ControlNet Status (Redundancy)
Perhaps trigger an alarm if the secondary is not synchronized?
RE: Partner ControlNet Status (Redundancy)
djs, you are right. I was trying to get specifically that status, just to show it in the hmi, just a cosmetic matter. But I think that will not be possible.
Thank you!
RE: Partner ControlNet Status (Redundancy)
Could do a switch over at startup to check status of redundant rack if you want to check status. Then report the rack as good, switch over, then get status of the primary, if good then start the system.
RE: Partner ControlNet Status (Redundancy)
I am working on a v19.52 Enhanced Redundancy system now and we run alarming on the status of the Primary ControlNet, the remote ControlNet chassis and module connections, and two remote DeviceNets. On the Redundancy side, we display which Chassis is the Primary and we check to make sure that the Secondary is qualified and ready to take over control. All the Redundancy status data comes from the RM modules.
RE: Partner ControlNet Status (Redundancy)
Thanks to all of you!