4
Technical Information
4.1
Data Synchronization and Switchover (Synchronous)
Data Synchronization: Program Cycle
4.2
Data Synchronization and Switchover (Asynchronous)
Data Synchronization: Program Cycle
4.3
LED States
The RUN and Error LEDs on the PCD3.M6880 show the standby status:
Standby State
RUN LED State
Error LED State
IDLE
*
Blink 500ms
STANDBY
Blink 2.5s**
OFF
ACTIVE - Redundancy
*
OFF
ACTIVE- Non Redundancy
*
ON
* normal state of the RUN Led on a PCD
** If CPU0 is in: - Conditional RUN Led blinks 2.5sON/ 500ms OFF
- STOP Led blinks 500msON/ 2.5s OFF
Saia-Burgess Controls AG
User Manual Standby System
│
Document 27-645
│
Edition E
NG 02
│
2017-04-26
Data Synchronization and Switchover | LED States
System overview
4-1
4