Introduction

EcoStruxure Control Expert provides M580 Hot Standby System diagnostic information in these GUI screens:

• the Hot Standby status viewer embedded in the EcoStruxure Control Expert Task Bar.

• the Information tab of the controller Animation window

Hot Standby Status Viewer

When EcoStruxure Control Expert is connected to the Hot Standby system, it displays the Hot Standby status of each controller, including:

• The status of controllers A and B.

• The comparative state of logic running in the standby controller.

• If a logic mismatch exists, the number of modifications made to the application running in the primary controller.

The Hot Standby Status Viewer looks like this:

1 Hot Standby status

2 Number of changes

The status values for controllers A and B include:

• RUN_PRIMARY

• RUN_STANDBY

• STOP

• WAIT

Also presented is the logic state of the standby controller, which can be either:

• EQUAL (green background): There is no logic mismatch.

• DIFFERENT (red background): Online changes have been made to the primary controller application that have not been transferred to the standby controller.

An additional status information is displayed when at least one task (MAST, FAST, or SAFE) is not synchronized between the Primary and the Standby controllers: TASK NOSYNC (red background):

In this case, analyze "MAST_SYNCHRONIZED", "FAST_SYNCHRONIZED" and "SAFE_SYNCHRONIZED" data provided in T_M_ECPU_HSBY DDT to detect the task which is not synchronized.

Hot Standby Information Tab

Use the controller configuration window Animation > Information tab to view the status of the Hot Standby system:

The Information tab contains one word of status data: