IfcControllerTypeEnum

IfcControllerTypeEnum

类型定义
IfcControllerTypeEnum定义了可以指定的不同类型控制器的范围。

IFC2.0中的新枚举。
IFC4  PROPORTIONALINTEGRAL和PROPORTIONALINTEGRALDERIVATIVE值已删除（现在使用属性集枚举）。添加了MULTIPOSITION。

 

Enumeration definition

Constant	Description
FLOATING	Output increases or decreases at a constant or accelerating rate.
PROGRAMMABLE	Output is programmable such as Discrete Digital Control (DDC).
PROPORTIONAL	Output is proportional to the control error and optionally time integral and derivative.
MULTIPOSITION	Output is discrete value, can be one of three or more values.
TWOPOSITION	Output can be either on or off.
USERDEFINED	User-defined type.
NOTDEFINED	Undefined type.

 

 

EXPRESS Specification

TYPE IfcControllerTypeEnum = ENUMERATION OF (
 FLOATING,
 PROGRAMMABLE,
 PROPORTIONAL,
 MULTIPOSITION,
 TWOPOSITION,
 USERDEFINED,
 NOTDEFINED);
END_TYPE;

 

 

 

 

 

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