ABB 800xA Operation page 132

Controller Node Subsystem Status Display
immediately after the request to confirm is the request executed. You can select
Cancel at any time to abort a request that has not yet been confirmed.
A Control Card redundancy request is initiated by selecting the status block for the
desired Control Module. (The block is highlighted to show selection.) Next, you
select the Redundancy Request button to bring up a set of commands described
below:
When one of the above commands is selected (except Confirm and Cancel), the
request and the subdevice number are shown and a prompt is displayed requesting
confirmation of the selected action. If the action and selected module are correct,
then select Confirm. Otherwise, select a different action and/or module.
Controller Subsystem Status Display Requests
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Establish Redundancy - Establishes redundancy.
Terminate Redundancy - Also terminates the Redundancy Auto-Establish
mode.
Start Controller - Used to get out of the READY state.
Hard Reset - Causes the Control Module to reset. This command is similar to
pulling the Control Module out of the slot and then re-inserting it.
Fail Over - Requests fail over of the Primary Control Module to the Backup
Control Module. If the fail over is unsuccessful, the Primary Control Module
continues to function as if no request to fail over occurred.
Switch Back - Requests switch back from the Backup Control Module to the
Primary Control Module.
Confirm - Confirms and sends request to the subdevice.
Cancel - Cancels any request not yet confirmed.
The Display Request button is used to access a
LAN display or a Controller I/O
(only one or the other can be available). First select an
available controller, then select the Display Request
button and then select the appropriate display.
Alternately, you can select a specific Remote I/O or
Direct I/O in the Diagnostic area.
Section 6 Status Displays
TRIO
(Direct I/O) display
3BUR002418-600 A