Siemens SIMATIC S7-400H Manual page 47

Type of
Fault/Error
•
Priority class Priority class is called, but the
error corresponding OB is not available.
•
In the case of an SFB call: The
instance DB is missing or defective.
•
Error during the updating of the
process image
•
Failure of a Power failure in an expansion rack
•
rack/station
Failure of a DP line
•
Failure of a coupling line: missing or
defective IM, interrupted line)
•
Communication Status information cannot be entered in
error DB
•
Incorrect frame identifier
•
Frame length error
•
Impermissible global identifier number
•
DB access error
Cancel The processing of a program block is
processing cancelled. Possible reasons for the
cancellation are:
•
Too much nesting depth of a
bracket level
•
Too much nesting depth of a
master control relay
•
Too much nesting depth for
synchronization errors
•
Too much nesting depth from
block calls (i stack)
•
Too much nesting depth from
block calls (b stack)
•
Error allocating local data
•
Unknown instruction
•
Branch instruction with destination
outside of the block
Programming Error in the machine code or in the user
error program:
•
BCD conversion error
•
Range length error
•
Range error
•
Alignment error
•
Write error
•
Timer number error
•
Counter number error
•
Block number error
•
Block not loaded
MC7 code error Error in the compiled user program (e.g.
impermissible OP code or jump over the
end of the block)
Automation System S7-400H Fault-tolerant Systems
A5E00068197-07
Cause of Error
Installation of a CPU 41x-H
Response of the Operating
System
OB 85 call
If the OB is not loaded: The CPU
goes into STOP mode.
OB 86 call
If the OB is not loaded: The CPU
goes into STOP mode.
OB 87 call
If the OB is not loaded: The CPU
goes into STOP mode.
OB 88 call
If the OB is not loaded: The CPU
goes into STOP mode.
OB 121 call
If the OB is not loaded: The CPU
goes into STOP mode.
The CPU goes into STOP mode.
Reboot or memory reset required.
Error LED
INTF
EXTF
EXTF
INTF
INTF
INTF
INTF
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