Safety Integrated - Industry - Siemens

COND2), which can be changed by the standard user program
or an operator control and monitoring system during the runtime
of an F run-time group, it is required to use separate flags
(here: COND1_F or COND2_F). Data from the standard user
program have to be written to these flags immediately before
calling the F run-time group. Only these flags may then be accessed
in the safety program.
F-Call
(FC1)
FB"SAFETY_PRG"
(FB1,DB1)
In this example it has already been implemented. Generally,
however, the following applies:
Note
If the above section is not observed the F CPU may go to
STOP mode.
The failsafe program has the follwoing structure:
FB"F_TOF"
(FB186,DB3)
FB"F_BACK"
(FB216,DB216)
FC"REINTEGRATION"
(FC2)
Readback monitoring
group 1
(contactors K1 and K2)
Readback monitoring
group 2
(contactors K3 and K4)
Reintegration passivated
F-DI/F-DO modules
From the
Distributed Safety
library
Functional Example No. AS-FE-I-009-V10-EN 289
G_FB_XX_173
Ex. No.
9