Fail-Safe Blocks
Fail-Safe Systems
A5E00085588-03
8-137
Errors in Runtime Communications – Protocol Fault
Error Code (W#16#...) Cause Remedies
75DCH
This fault results in disabling of the F-run-time
group that contains the faulted F-FB and
possibly disabling of the entire Safety Program
(depending upon the configuration of FULL_SD
input of the FB F_SHUTDN , either Full
Shutdown or Partial Shutdown). The fault due
to an internal failure of the RAM or F-CPU.
• Restart the Shutdown logic.
-or-
• Stop and ColdStart F-CPU.
-or-
• Full Download of the
complete program to F-CPU.
-or-
• Replace the F-CPU.
Error Detected in F_PLK – Program/Data Flow Control Error Before Output Blocks
Error Code (W#16#...) Cause Remedies
75E1H
Error processing F_CYC_CO, internal CPU fault
Error processing F_TEST, internal CPU fault
Error processing F_TESTC, internal CPU fault
Error due to online modification of the Safety
Program or internal CPU fault
• Restart the Shutdown logic.
-or-
• Stop and ColdStart F-CPU.
-or-
• Full Download of the
complete program to F-CPU.
-or-
• Replace the F-CPU.
Error Detected in F_PLK_O – Program/Data Flow Control Error After Output Blocks
Error Code (W#16#...) Cause Remedies
75E1 H
Error due to online modification of the Safety
Program or internal CPU fault
• Restart the Shutdown logic.
-or-
• Stop and ColdStart F-CPU.
-or-
• Full Download of the
complete program to F-CPU.
-or-
• Replace the F-CPU.
Error Detected in F_CYC_CO – Exceeding of the F Cycle Time by...
Error Code (W#16#...) Cause Remedies
75E1H
Power failure,
Internal CPU fault
• Restart the Shutdown logic.
-or-
• Stop and ColdStart F-CPU.
-or-
• Full Download of the
complete program to F-CPU.
-or-
• Replace the F-CPU.
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