Concept
Timed Force Objects
Timed Force objects are utility objects that force an override of the actual value of an analog, digital, or multistate output for a period of time specified either as a time duration or as a selected end date and time.
A Timed Force object is typically used during maintenance or testing. For example, an area of a facility must run in occupied mode until 7:00 p.m., past the time when occupied mode normally ends, so that a sensor can be replaced. To automate the release of the force, the facilities engineer uses a Timed Force object configured to a Force until value of 7:00 p.m. In another example, the facilities engineer must cycle valves and dampers to verify that they are operating properly. Using a Timed Force object with the Force duration value configured to a desired value in minutes, the engineer can cause these devices to automatically stop after cycling for the required amount of time.
You can add a Timed Force object anywhere that a utility object is allowed.
A Timed Force object is placed in a data stream in series, for example between the output of one object and the linked input of another object or between a hardware input point and a software input.
When applying a force, you can use a Timed Force object to specify the end time of the force in either of two ways:
Time duration: You can choose the duration of the force, to any value between 1 and 1440 minutes. When you configure a time duration, the ending time of the force is automatically calculated and then displayed.
Ending date and time: You can specify the exact future date and time at which you want the force to end. In the event of an unexpected shut down of the server, the date and time values are restored when the server restarts.
The Properties grid is not automatically refreshed. To see updates, you need to refresh manually.
You can configure the frequency at which the input value is sent to the output, at any value between 0.5 and 60 seconds. You can also configure the frequency at which the input is updated from other objects or devices, selecting from a list of frequency values between 100 milliseconds and 15 minutes.
Timed Force Analog Object
The Timed Force Analog object has a single analog input that can be bound to another object to receive a value. The input's value is passed directly to a single analog output, which can be bound to an object that is to be controlled. An active timed force can be changed or cancelled as needed.
For more information, see Timed Force Analog Object .
Timed Force Digital Object
The Timed Force Digital object has a single digital input that can be bound to another object to receive a value. The input's value is passed directly to a single digital output, which can be bound to an object that is to be controlled. An active timed force can be changed or cancelled as needed.
For more information, see Timed Force Digital Object .
Timed Force Multistate Object
The Timed Force Multistate object has a single multistate input that can be bound to another object to receive a value. The input's value is passed directly to a single multistate output, which can be bound to an object that is to be controlled. With a Timed Force Multistate object, you can select and then force the display of a text string associated with one of the states created in the object. An active timed force can be changed or cancelled as needed.
For more information, see Timed Force Multistate Object .
Utilities
Timed Force Analog Object
Timed Force Digital Object
Timed Force Multistate Object
Forced Values