Pilz PSS SB FT, Basic license - Manual (Page 128)

6-84 Modular Block System: Burner Management
Standard Function Blocks
SB158: Ignition
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
section “Administration data blocks DB015, DB016 and
DB017” and in the section “Input parameter
SSNR” in
chapter 5).
Value of DW0000/DB015 = 0: no error present
• NEXT: Step sequence input
Bits 0...5 of the input byte represents a processing step in the
block. By setting a bit the corresponding step in the block wil
be started.
• SyOK: General plant status
Note: suplpy the output parameter
ENBL of SB152 to the input
parameter SyOK of SB158
SyOK = 1: no error
SyOK = 0: error in the system, leads to a shutdown
• MANU: MANU = M110.01 (RLO=1): manual ignition via the S_IG
button
MANU = M110.00 (RLO=0): automatic ignition via the step
sequence
• S_IG: Ignition button
SB158
IGNITION
B - SSNR
B - NEXT
X - SyOK
X - MANU
X - S_IG ENBL - X
RDY - B
IGNI - X
VAV1 - X
VAV2 - X
RUN - X
FLAI - X