Siemens SIMATIC S5 Manual page 270
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Also See for SIMATIC S5:
- Manual (360 pages) ,
- Equipment manual (197 pages) ,
- Operating instructions manual (43 pages)
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PLC Error Messages
Error
Con-
Error Message Text
Identi-
sec.
fier
No.
Progr.
18
01
Process output image (PIQ) in
A and B unequal: CPU or PL
error
Additional info. 1:
DQ word No.
Additional info. 2:
DQ word in A
Additional info. 3:
DQ word in B
18
02
Counter in A and B not
identical: CPU or PL error
Additional info. 1:
Counter No.
Additional info. 2:
Counter in word A
Additional info. 3:
DQ word in B
B-10
Possible Cause
Error group No. 20
-
CPU error
(PIQ is overwritten by e.g. PG,
SINEC)
-
PL HW error
Number of the word in which
different PIQ contents in A and B
were found,
decimal display
Error group No. 20
-
CPU error
(PIQ is overwritten by e.g. PG,
SINEC)
-
PL HW error
Number of the counter in which
different contents in A and B were
found
Decimal display
Display of counter contents in
hexadecimal form
Display of counter contents in
hexadecimal form
S5-115F Manual
Remedy
-
Replace CPU
-
Replace PL
-
Service
Warm restart:
1. POWER OFF/ON
2. Stop/Run
- Replace CPU
- Replace PL
- Service
Warm restart
1. POWER OFF/ON
2. Stop/Run
EWA 4NEB 811 6149-02
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