Fail-Safe Blocks
Fail-Safe Systems
A5E00085588-03
8-67
Name
Data Type
Explanation
Default
Outputs:
DIAG_1
DWORD
Diagnostic information for
SM1, see table below
0
DIAG_2
DWORD
Diagnostic information for
SM2, see table below
0
PROFIsafe1
F_BOOL
Identify failure on a specific
PROFIsafe bus
0
PROFIsafe2
F_BOOL
Identify failure on a specfic
PROFIsafe bus
0
SM1, SM2 – redundant modules
Error Information at the Output DIAG_1/2
DIAG_1
DIAG_2
Byte 0
Byte 0
Bit 0: TIMEOUT error on SM1
Bit 0: TIMEOUT error on SM2
Bit 1: Common error on SM1
Bit 1: Common error on SM2
Bit 2: CRC value/watchdog error on SM1
Bit 2: CRC value/watchdog error on SM2
Bit 3: Reserved
Bit 3: Reserved
Bit 4: TIMEOUT error on CPU
Bit 4: TIMEOUT error on CPU
Bit 5: Watchdog error on CPU
Bit 5: Watchdog error on CPU
Bit 6: Check value error (CRC) on CPU
Bit 6: Check value error (CRC) on CPU
Bit 7: Reserved
Bit 7: Reserved
Byte 1
Byte 1
Reserved
Reserved
Byte 2
Byte 2
Reserved
Reserved
Byte 3
Byte 3
Reserved
Reserved
Note
In byte 0 of DIAG_1/2, the most recent error information remains stored until a new
error occurs, even if the error has already gone.
Error Handling
In the event of an error that is critical to safety, the system function SFC F_CTRL
is called. This records the event in the Diagnostic Buffer and requests a switch to
the reserve CPU if the error occurred only on the master CPU. For non-redundant
systems or a common-cause error occurring in both CPUs, the shutdown logic can
be configured to either disable the erred F-run-time group or the entire Safety
Program.
Содержание SIMATIC S7 F
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Страница 16: ...Contents Fail Safe Systems xvi A5E00085588 03 ...
Страница 38: ...Product Overview Fail Safe Systems 1 22 A5E00085588 03 ...
Страница 56: ...Getting Started Fail Safe Systems 2 18 A5E00085588 03 ...
Страница 70: ...Safety Mechanisms Fail Safe Systems 3 14 A5E00085588 03 ...
Страница 115: ...Programming Fail Safe Systems A5E00085588 03 5 33 Examples Receive Block Send Block ...
Страница 154: ...Programming Fail Safe Systems 5 72 A5E00085588 03 ...
Страница 166: ...Operation and Maintenance Fail Safe Systems 6 6 A5E00085588 03 ...
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Страница 344: ...References Fail Safe Systems B 2 A5E00085558 03 ...
Страница 350: ...Glossary Fail Safe Systems Glossary 6 A5E00085588 03 ...