Two-point controller

This function block implements a two-point controller.

Inputs
FG	Enable	Enable. The controller is enabled when a 1 is present at the input. This input is optional; if the input is not connected, the controller is automatically enabled.
IW	Actual value*	Actual value
SW	Setpoint*	Setpoint
Outputs
A1	Manipulated variable	Manipulated variable
Parameters
	Control time	Control time in seconds. The setpoint / actual value comparison is only performed at this interval.
	Hysteresis	Hysteresis.
	Hysteresis type	This parameter is used to set the hysteresis. Plus/Minus: IW < SW - hysteresis = on, IW > SW + hysteresis = off Minus: IW < SW - hysteresis = on, IW > SW = off Plus: IW < SW = on, IW > SW + hysteresis = off

Inputs