Safety Integrated - Industry - Siemens

Ex. No.
10 Network 3
Additionally contained in OB 1 is the "FB LS4", which, however,
is not processed. It only serves as preparation it is to
be used. Please note: Before calling the "FB LS4" the "Proxy-
Enable" bit must be permanently set to "1".
The "FB LS4" enables automatic parameterization when exchanging
the LS4.
The fail-safe program has the following structure:
F-Call
(FC1)
FB"SET_ACT"
(FB3,DB3)
FB"FIELD_PAIR_SWITCHING"
(FB4,DB4)
FC"REINTEGRATION"
(FC3)
FC "FMAIN" (FC 2)
The calls of the F-blocks are coordinated from here.
Network 1
FB 3, DB 3 is called here:
...
"ACK"
"OSSD"
"COND"
EN
ACK
OSSD
COND1
FC"FMAIN"
(FC2)
"INSTANZ_
FB3"
"SET_ACT"
ACTUATOR
ENO
"ACTUATOR"
312 Functional Example No. AS-FE-I-010-V11-EN
G_FB_XX_185
G_FB_XX_187
Parameter Note
ACK Acknowledgement signal
OSSD Safety-relevant output of LS4.
COND1 Starting condition defined in OB 1 (or OB 35).
ACTUATOR Indicator light
Network 2
FB 4, DB 4 is called here:
Inputs: Position switches which define which zone pair is active.
The inputs "SEN_FIELD3" and "SEN_FIELD4" are not used
in this example and are therefore assigned with memory bits
as dummies.
Outputs: Detection zone number (bit 0 to 2) of the cyclic output
data.
Network 3
...
"SEN_
FIELD1"
"SEN_
FIELD2"
"SEN_
FIELD3"
"SEN_
FIELD4"
...
EN
EN
SEN_
FIELD1
SEN_
FIELD2
SEN_
FIELD3
SEN_
FIELD4
"INSTANZ_
FB4"
"FIELD_PAIR_
SWITCHING"
"REINTEG
RATION"
FIELD
BIT0
FIELD
BIT1
FIELD
BIT2
ENO
ENO
"FIELD
BIT0"
"FIELD
BIT1"
"FIELD
BIT2"
Here the FC 3 is called for reintegration of passivated modules
(F-DI / F-DO) and the LS4.
G_FB_XX_186
G_FB_XX_188