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S5-95F
Table 15-2. Evaluating System Events in DB254 (continued)
Error No.
(Decimal)
12
Error in user program (error
detected during program scan)
(Error response: Soft STOP)
EWA 4NEB 812 6210-02
Primary
Information
Auxiliary
Information
Byte 2:
51
: Substitution error in FB
H
52
: Block nesting depth
H
exceeded
53
: DB not opened or no
H
such DW in DB
54
: DB generation error
H
55
: Redundant module
H
referenced with uneven
address
56
: G DB operation not
H
allowed on DB0, 1 or 252
to 254, as these are
reserved DBs
57
: Non-existent block called
H
58
: Illegal I/O access
H
operation with T PY
59
: Illegal I/O access
H
operation with T PW
5A
: Illegal I/O access
H
operation with L PY
5B
: Illegal I/O access
H
operation with L PW
5C
: Interrupt caused
H
exceeding of block
nesting depth
5D
: Illegal reference in TIR
H
statement
5E
: Illegal reference in LIR
H
statement
5F
: Substitution error in
H
integral block
60
: DB for OB251 not
H
opened
61
: Illegal reference in TNB
H
statement
Error Diagnosis and Elimination
Corrective
Measures
Evaluate ISTACK
Check program
15-13
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