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All output points on the UHC- 400 are Universal Outputs (UO): that is, configurable as current, digital, or voltage outputs. The digital outputs are defined by the UO functional block.
Each UO functional block contains two network variables: an override network variable, and the output network variable that contains the value in engineering units.
To configure the DigitalOutput functional block:
1.On the DigitalOutput, click the SmartTag. From the menu select ‘Configure Functional Block’. The functional block will open.
2.The box labeled ‘Description’ is optional. We suggest entering text that will link the output point with the connected external devices. For example, fan.
3.Under ‘Point type’ click the drop down arrow. Select Digital. At this point, all of the analog settings will be disabled.
Digital specifies that the output electrical signal ranges from low impedance to high impedance as a dry contact.
4.In the area titled Communication Settings, set the timers associated with the output network variable. See for a description of these settings.
5.In the area titled Digital, check the box labeled ‘Normally closed contact’ if this label describes your output.
6.Enter the ‘Minimum on time’ and the ‘Minimum off time’ according to the following definitions:
Minimum On time: — time in seconds that must elapse in the On state before the output can change its state to Off if commanded.
Minimum Off time: — time in seconds that must elapse in the Off state before the output can change its state to On if commanded.