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BACnet Multi-State Time Clock


Control microblock

The BACnet Multi-State Time Clock microblock reads schedules from WebCTRL and generates values to tell the control program what state the zone is in, and how long the zone will remain in its current state.

The BACnet Multi-State Time Clock can be used to establish a schedule that outputs different values at different times of the day.

For example, it can be used to control lighting which has multiple modes such as normal workday, janitorial cleaning, and after-hours modes. The Multi-State Time Clock should be used with WebCTRL Multi-State (not Boolean) schedules. The value appears to other BACnet devices as the Present Value property of a BACnet schedule object.

The microblock has two outputs: the mode output, which indicates what mode the zone is currently in; and the time output, which indicates the number of minutes remaining until the mode changes. The value of these outputs depends on the schedule entered for the control program in WebCTRL. Enter or view schedules on WebCTRL's Schedule page.

You cannot set schedules using the microblock's dialog box. The Properties page shows the current occupancy status of the zone and the time when the occupancy is scheduled to change.

Properties

Alarm properties

NOTE  Alt+click any value in WebCTRL to view property details, including its expression and editing privilege.