Automatically Inserted F-Blocks; Do Not Change Automatically Inserted F-Control Blocks - Siemens SIMATIC S7 F Manual

Programming
5.3.2

Automatically Inserted F-Blocks

When a CFC chart with fail-safe blocks is compiled, the following F-Control blocks
are inserted automatically in the Safety Program:
•
F_SHUTDN
•
DB_INIT
•
RTG_LOGIC
•
FAIL_MSG (part of RTG_LOGIC block type)
•
DB_RES
•
F_CYC_CO
•
F_PLK
•
F_PLK_O
•
F_TEST
•
F_TESTC
•
F_TESTM
The following F module drivers can be inserted automatically (through generate
module drivers) or manually:
•
F_M_DI24
•
F_M_DI8
•
F_M_AI6
•
F_M_DO8
•
F_M_DO10
Safety Note – Do not change automatically inserted F-Control Blocks.
!
The automatically inserted F-Control Blocks are visible after compilation. You must
not delete or change these blocks in any way. This may result in errors at the next
compilation.
Fail-Safe Systems
A5E00085588-03
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