CI840A Redundacy Issue
How to determine profibus line redundancy and CI840A Module redundancy saparately?
I have Redundant PM861A, Redundant Ci854A and 2 nos. CI840 with TU847 in redundant configuration.
I did some tests but cann't find the module redundancy with single profibus line.
Is there any configuration to get module redundancy along with line redundancy?
Voted best answer
line redendancy should work with Profibus,How your cable connected?
I think,first cable from primary CI854 should start from Uppar Controller and then to Secondary CI854 of Down controller then to Slaves....and on...
The Line 2 cable should start from Lower Controller CI854 and then to Uppar CI854 then to Slaves..on on..
Is it the same way it is connected?
The CI840 should be on dual mode with one profibus cable..
Is CI840 Hardware indication showing dual LED?
Can just tell us how the Hardware indications on both CI840s and both CI854s?