Safety_Standard.lib - ABB AC500-S Safety User Manual

Safety programmable logic controllers system

Hide thumbs Also See for AC500-S:

Table of Contents

Configuration and programming

AC500-S Libraries > Safety_Standard.lib

4.6.2 Safety_Standard.lib

Only a short description is provided for standard CoDeSys POUs from Safety_Standard.lib. For more

detailed information about CoDeSys Standard Functions

Bistable function, reset dominant

Q1 = NOT RESET1 AND (SET OR Q1)

Software semaphore. Interruptable!

BUSY is TRUE, if there was a call with CLAIM = TRUE,

but no call with RELEASE = TRUE.

CLAIM = TRUE sets BUSY = TRUE;

RELEASE = TRUE sets BUSY = FALSE;

Bistable function, set dominant

Q1 = SET1 OR (NOT RESET AND Q1)

Counter Down.

CV is decremented by 1 if CD has a rising edge.

Q is TRUE, if CV reached 0.

Ä AC500 User Documentation.

Show Quick Links

Table of Contents