Pilz PSS SB FT, Basic license - Manual (Page 90)

6-46 Modular Block System: Burner Management
Standard Function Blocks
Multiple drive commands
Spurious fault signal reset
Repeated drive commands,
although the final position has
already been reached.
No drive commands with invalid input
signals (both inputs “1”)
ENBL output is reset.
The outputs will be active again only after an
enable reset and a new control command edge.
After a fault signal ( ENBL = 0) the corresponding
OPEN/CLOSE output is set when there is a 0-1 edge
at the
DirO/DirC input and RSET pulse.
SB153