Control.com - Nerds in Control

I had made redundancy in ControlLogix on hardware side but facing problem on software side. Primary chasis is synchronized with secondary after any abnormality or you can say switchover is normal.
Tags in the both primary and seconadary topics of RSLinx OPC server are avaliable. But when I check for proper updating of tags in RSLinx OPC server while using RSLinx OPCTest Client, the tag quality is bad and did not update while I toggled in RSLogix5000.

Anyone who can really help me out, plz reply here
or on my personal mail.

thussain @ iael. com

Come on Guys help me out..

The probelm is that Tag quality in Rslinx OPC test client is BAD when i implement CLX logix Redundant system, but tag quality is GOOD while using Single CONTROLOGIX system. (mind it that on Hardware primary is sechronized with secondary, switching of chassis is fine )

Talal,
For redundant Controllogix, you need to configure an alias topic.

1. Configure topic for the "primary" controller eg COMPSR_CLX_A.

2. Configure topic for the "secondary" controller eg COMPSR_CLX_B.

3. Configure alias topic COMPSR_CLX that points to both topics defined in step 1 & 2.

Tom Tran
tom.tran@industran.com