User Manual

Alarm management
Alarm response of the function blocks
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150 | 353 CM110664en_07
Event_Type Event_State Event_Parameters Data type
FLOATING_LIMIT NORMAL
HIGH_LIMIT
LOW_LIMIT
Time_Delay
Setpoint_Reference
Low_Diff_Limit
High_Diff_Limit
Deadband
Unsigned
BACnetDeviceObjectPropertyRe
ference
REAL
REAL
REAL
OUT_OF_RANGE NORMAL
HIGH_LIMIT
LOW_LIMIT
Time_Delay
Low_Limit
High_Limit
Deadband
Unsigned
REAL
REAL
REAL
BUFFER_READY NORMAL Notification_Threshold
Previous_Notification_Count
Unsigned
Unsigned
CHANGE_OF_LIFE_SAFETY NORMAL
OFFNORMAL
LIFE_SAFETY_ALARM
Time_Delay
List_Of_Alarm_Values
List_Of_Life_Safety_Alarm_Valu
es
Mode_Property_Reference
Unsigned
list of BACnetLifeSafetyState
list of BACnetLifeSafetyState
BACnetDeviceObjectPropertyRe
ference
EXTENDED Any BACnetEventState Vendor_Id
Extended_Event_Type
Parameters
Unsigned
Unsigned
Extended_Event_Type
UNSIGNED_RANGE NORMAL
HIGH_LIMIT
LOW_LIMIT
Time_Delay
Low_Limit
High_Limit
Unsigned
Unsigned
Unsigned
An Event Enrollment object also monitors the status flag property of an object
with referenced property. If the FAULT flag of the referenced object is set, the
Event Enrollment object generates a Fault alarm.
Loop object
The Loop object contains intrinsic reporting.
An OFFNORMAL alarm occurs when:
● [XCtr] exceeds the limit (SetPoint + ErrorLimit) longer than the specified
time (HIGH_LIMIT) defined in variable [TiMonDvn]
● [XCtr] drops below the limit (SetPoint – ErrorLimit) longer than the
specified time (LOW_LIMIT) defined in variable [TiMonDvn]
An existing OFFNORMAL alarm (HIGH_LIMIT) disappears again when [XCtr]
drops below the value (SetPoint + ErrorLimit – Deadband) longer than the
specified time defined in variable [TiMonDvn].
An existing OFFNORMAL alarm (LOW_LIMIT) disappears again when [XCtr]
exceeds the value (SetPoint – ErrorLimit + Deadband) longer than the specified
time defined in variable [TiMonDvn].
FAULT alarm:
● A FAULT alarm occurs immediately as soon as [Rlb] of the function block
has a value other than NO_FAULT_DETECTED. This is true in particular
when [Rlb] changes from a value that is not equal to
NO_FAULT_DETECTED to another value that is not equal to
NO_FAULT_DETECTED.
● A FAULT alarm disappears immediately as soon as [Rlb] of the function
block changes again from a value that is unequal to NO_FAULT_DETECTED
to the value NO_FAULT_DETECTED.
Event notification
Alarm response