Operator Task for Desigo Automation

The behavior or impact in the system differs depending on the template. With operator task, you can limit in time system-relevant changes for maintenance work. This ensures that changes are reset to automatic mode after a set duration. The application program can be reset manually to automatic mode or automatically via the set time.

Information

NOTE:
Automatic reset of the selected values is based on the present time on the automation station and not the time as displayed on the computer.

Command BACnet Output

The operator task may only overwrite an output if there is no priority between 1 and 7 pending on the priority array. The value on an active operator task is written at priority 8. As a consequence, only priorities between 9 and 16 can be influenced. Manual changes at priority 8 can, however, influence the operator task.

Priority array	Can operator task be influenced
	Yes
	No Priority 2 prevent a change of value.
	Yes A change of value at priority does, however, influence the present value.

Default settings of the template in use
Restore	Duration	Validation
Manual	00:30:00	Yes (cannot be edited).

Switch Out of Service BACnet Input

Using the operator task ensures that the objects are once again returned to service at the end of the maintenance work. The plant operates in automatic mode once the operator tasks in completed.

Alarm Suppression
Operational
Out of service

Default settings of the template in use
Restore	Duration	Validation
Manual	00:30:00	Yes (cannot be edited).

Deactivate / Activate BACnet Alarm

BACnet alarms to the management station are suppressed while the operator task is active. On an active operator task, the property Enable alarm is set to No.

Object in alarm state
Property	Operator task not active		Operator task active
Alarm state		Present Value		Normal
State flag		In alarm		-
Enable alarm		Yes		No

Default settings of the template in use
Restore	Duration	Validation
Automatic	00:30:00	Yes (cannot be edited).

Deactivate / Activate Offline Trend

No further trend data is recorded while the operator task is active.

Property	Operator task not active		Operator task active
Logging activated		Active		Inactive
Log state		Recording		Stopped

Default settings of the template in use
Restore	Duration	Validation
Automatic	00:30:00	Yes (cannot be edited).

Suppress Alarms (Global Template)

If alarm suppression is activated by the operator task for an object, alarms relating to the tasks are not displayed on the management station. This includes all follow-on events for such an event, including Reactions, Notifications, etc., which are suppressed on the management station. Conversely, changes of value and state of the objects in question continue to be updated and continuously logged. Background information is available in the section Handling Alarm Suppression for System Objects.

Alarm Suppression
Off
On

Default settings of the template in use
Restore	Duration	Validation
Automatic	00:30:00	Yes (cannot be edited).

The object (disable) or the partial structure (disable all) can be manually disabled at any time. Display in the summary bar display the new number of alarms that have alarm suppression .