StartDelay

StartDelay (FB)

FUNCTION_BLOCK StartDelay

Short description

Generation of signals after each CPU restart. Usage: Delayed enabling of actions after the CPU restart.

Representation

Interfaces

Outputs

Name	Data type	Value range	Initial value	Function
xQ1	BOOL			Output 1
xQ1p	BOOL			Pulse output 1
xQ2	BOOL			Output 2
xQ2p	BOOL			Pulse output 2

Setpoints / parameters

Name	Data type	Value range	Initial value	Function
TimeQ2Puls	TIME		T#1s	Pulse duration - Pulse output 2
TimeQ2	TIME		T#20s	Time delay - Output 2
TimeQ1Puls	TIME		T#1s	Pulse duration - Pulse output 1
TimeQ1	TIME		T#5s	Time delay - Output 1
xTest	BOOL		FALSE	Simulation of the CPU restart

Function description

General

This function block is used to generate signals after each CPU restart. The CPU restart can be triggered via the simulation input xTest (= TRUE) independently of an actual CPU restart. The output xQ1 changes after each CPU restart with a time delay TimeQ1 from the FALSE state permanently into the TRUE state. At pulse output 1 xQ1p a single pulse with the pulse length TimeQ1Puls is generated. The output xQ2 changes after each CPU restart with a time delay TimeQ2 from the FALSE state permanently into the TRUE state. At pulse output 2 xQ2p a single pulse with the pulse length TimeQ2Puls is generated.

CODESYS

InOut:

Scope	Name	Type	Initial
Input Const	TimeQ2Puls	TIME	TIME#1s0ms
Input Const	TimeQ2	TIME	TIME#20s0ms
Input Const	TimeQ1Puls	TIME	TIME#1s0ms
Input Const	TimeQ1	TIME	TIME#5s0ms
Input Const	xTest	BOOL	FALSE
Output	xQ1	BOOL
Output	xQ1p	BOOL
Output	xQ2	BOOL
Output	xQ2p	BOOL