7.2.4.16 Pset_ControllerTypeTwoPosition
7.2.4.16.1 Semantic definition
Properties for signal handling for an analog controller taking disparate valued multiple inputs and creating a single valued binary output.
HISTORY: In IFC4, extended properties to replace Pset_BinaryInput and Pset_BinaryOutput.
7.2.4.16.2 Applicable entities
- IfcController/TWOPOSITION
- IfcControllerType/TWOPOSITION
7.2.4.16.3 Properties
| Name | Property Type | Data Type | Description | |
|---|---|---|---|---|
| ControlType | IfcPropertyEnumeratedValue | PEnum_ControllerTwoPositionType |
The type controller, signal modification effected and applicable ports LOWERLIMITSWITCH: Single analog input is read and if less than Value.LowerBound then True is written to the output value. UPPERLIMITSWITCH: Single analog input is read and if more than Value.UpperBound then True is written to the output value. LOWERBANDSWITCH: Single analog input is read and if less than Value.LowerBound+BandWidth then True is written to the output value. UPPERBANDSWITCH: Single analog input is read and if more than Value.UpperBound-BandWidth then True is written to the output value. NOT: Single binary input is read and the opposite value is written to the output value. AND: Two binary inputs are read and if both are True then True is written to the output value. OR: Two binary inputs are read and if either is True then True is written to the output value. XOR: Two binary inputs are read and if one is true then True is written to the output value. CALENDAR: No inputs; the current time is compared with an IfcWorkCalendar to which the IfcController is assigned and True is written if active. INPUT: Controller element is a dedicated input. OUTPUT: Controller element is a dedicated output. VARIABLE: Controller element is an in-memory variable. |
|
| Labels | IfcPropertyTableValue | IfcLabel/IfcBoolean |
Table mapping values to labels Labels indicate the meanings of True and False, such as 'Open' and 'Closed' |
|
| Polarity | IfcPropertySingleValue | IfcBoolean |
True indicates normal polarity; False indicates reverse polarity. |
|
| Value | IfcPropertySingleValue | IfcBoolean |
The expected range and default value. The default value such as normally-closed or normally-open. |