Pilz PSS SB FT, Basic license - Manual (Page 72)

6-28 Modular Block System: Burner Management
Standard Function Blocks
SB152: Burner: start and operator elements
Block header
Input parameters
• SSNR: Safety subroutine number
Permitted value range: 1 ... 200
Format: Byte-constants KB001 ... KB200
(further information about the
SSNR can be found in the
sections “Administration data blocks DB015, DB016 and
DB017” and “Input parameter
SSNR” in chapter 5).
Value of DW0000/DB015 = 0: no error detected.
• NEXT: NEXT = 1: Time for the step “Build-up minimum air pressure”
has elapsed, air pressure monitoring is activated (air pressure
monitor
AirP) .
• STRT: Start input to switch on the burner
• STOP: Stop input to switch off the burner
• ERR: Global input of the error sequence
ERR = 0: controlled shutdown when AuSt = 1,
safety shutdown when AuSt = 0
ERR = 1: the error sequence is inactive, which means no error
is present.
SB152
SB152
BR_START
B - SSNR
X - NEXT
X - STRT
X - STOP
X - ERR
X - GUAR
X - AirP
X - CHAI
X - FLAs
X - FTRY
X - RUN
B - D_C
X - AuSt
X - RSET ENBL - X
RDY - X
STEP - X