KVIT, BLOCK, UNBLOCK actions

Declaration
[_retInt := ] KVIT alarmObjIdent

[_retInt := ] BLOCK alarmObjIdent

[_retInt := ] UNBLOCK alarmObjIdent


Parameters
_retInt out Identifier of Int type - action success.
alarmObjIdent in Reference to an Alarm type object, or to an object, which can generate a process alarm.

Description
The actions allows to control the alarm states of D2000 system objects.
  • KVIT              - alarm acknowledgement
  • BLOCK          - alarm blocking
  • UNBLOCK    - alarm unblocking

Every action may be executed in two ways:

  • Synchronously - notation with an assignment. Action waits for the execution of the given command. Action return code may get one of the following values:
    • _ERR_TRANS_ABORT
    • _ERR_TRANS_ERROR
    • _ERR_TRANS_IGNORED
    • _ERR_NO_ERROR 
  • Asynchronously - notation without any assignment. Action will require the system to execute the given command and the script continues executing another actions.

Example
 BEGIN
  INT _stav
  _stav := BLOCK alarm
  IF _stav = _ERR_NO_ERROR THEN
   MESSAGE "alarm has been blocked" ON srvskol1v.HIP
   _stav := KVIT alarm ;attempt to acknowledge a blocked alarm
   IF _stav = _ERR_NO_ERROR THEN
    MESSAGE "alarm has been acknowledged" ON srvskol1v.HIP ;cannot be executed
    ELSE
 
    MESSAGE "alarm cannot be acknowledged, it is blocked" ON srvskol1v.HIP
   ENDIF
  ELSE
    MESSAGE "failed to block an alarm" ON srvskol1v.HIP 
  ENDIF
 END

Related pages:

Script actions

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