ABB Advant Controller 450 - Diconfig

Advant
®
Controller 450 User’s Guide
Chapter 4 Runtime Operation
4-8 3BSE 002 415R701 Rev A
4.1.6.1 DICONFIG
Additional Information for Redundant Processor Modules
Please find above information relevant to the primary unit.
Normally the backup unit has the same start mode selector setting.
Then the sequence of working modes is:
PRIMARY P2 CONFIGURATION
⇒
P1 OPERATION
BACKUP b1 STANDBY
⇒
b2 UPGRADING
⇒
b1 STANDBY
LEDs DUAL turned on (both processor modules).
Figure 4-4. Working Mode Caused by DICONFIG
Starting-point:
Event :
Start mode selector:
Actions executed
by the controller
Resulting
working mode
OPERATION
P1
CONFIG.
P2
STOPPED
-3
OFFLINE
-4
(Compulsory
setting)
Controller executing in working mode
CONFIGURATION
User enters engineering station
command DICONFIG
- Initialize and
start
application
2
3
4
(AUTO) 1
2
3
1
(OFFLINE)
3
4
2
3
4
1
(STOP)
2
3
4
1
(CLEAR)