How to Get time stamp when using only CI868 card with AC800M Controller
Customer don't want any server based design as all data was expected to come through controller
When AC800M Controller with CI868 card used for collecting data , can we achieve the same
1) Time stamp from the source which is relay
2) if above answer is yes, How Alarm and Event control module configured to pass the external time (Alarmcond and Simplevent )
3) Since CI868 has no card level redundancy, application logic need to written to achieve the same - Then how we get the timestamp
The IEDs associated with the Circuit Breaker IEDs adds a time stamp value along with status value and updated in RCB dataset whenever a change in Circuit Breaker position is detected.
CI868 module captures this status and external time stamp value assigned as IEC 61131 - 3 variable in CSWI or XCBR LN objects and generates respective External Events.
These External Events can be used as input for AlarmCond and SimpleEventDetector function block in IEC 61131 -3 application to generate Alarm and Events.
Generate Alarms parameter for the respective IED is set to Enabled.