Roller shutter digital

This function block implements a roller shutter control. Please note that the positions can only be determined approximately; a drift between setpoint/actual value cannot always be avoided.

Inputs
LZ	Long travel	At 0 the roller shutter moves all the way up, at 1 all the way down.
ST	Stop	Stop.
SH	Setpoint height	Setpoint height in percent.
SP	Lock	Optional lock. If the input is not connected, the function is always enabled, otherwise only when 0 is present at the input; at 1 the function is locked.
Outputs
AU	Up	Output up
AB	Down	Output down
RH	Feedback height	Feedback current height
Parameters
	Travel time height	Travel time from all the way up to all the way down. The position is calculated from this time.
	Travel time short time	Travel time when the input KZ short time is actuated, to adjust the slat step by step.
	Overrun in percent	When the blind is moved all the way up or down, the corresponding outputs are driven longer than necessary so that the blind is fully open / closed. This overrun is specified in percent of the travel time height.

See also common parameters of all function blocks.