ControlLogix 5590 High Availability Systems

Verify Qualification and Synchronization

After you identify the primary and secondary chassis and apply power to the redundant chassis pair, the redundancy modules run a series of checks and qualify the redundant chassis pair. The qualification process begins automatically.

While qualification occurs, the status message on the module display transitions from DISQ (disqualified) to QFNG (qualifying) to SYNC (synchronized). The process completes in 1…3 minutes.

To verify the qualification and synchronization status, refer to the status messages on the modules in the redundant chassis pair as described in the following tables.

Synchronized System
Primary Chassis Display		Secondary Chassis Display
Redundancy Module	Controller and Communication Module	Redundancy Module	Controller and Communication Module
PRIM	PwQS	SYNC	QS

Qualifying System
Primary Chassis Display		Secondary Chassis Display
Redundancy Module	Controller and Communication Module	Redundancy Module	Controller and Communication Module
PRIM and QFNG	PQgS	QFNG	QgS

System with a Primary and Disqualified Secondary
Primary Chassis Display		Secondary Chassis Display
Redundancy Module	Controller and Communication Module	Redundancy Module	Controller and Communication Module
PRIM	PwDS	DISQ	CMPT (modules compatible) or DSNP (no partner present)

In the

FactoryTalk® Linx

Redundancy Module Configuration Tool (RMCT), you can view the status of your system in the bottom-left corner of the dialog box.

Set Up a Redundant Chassis Pair

Provide Feedback

Have questions or feedback about this documentation? Please submit your feedback here.