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Siemens CPU 948 Programming Manual page 284

Simatic s5 s5-155u
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OB 151: Set/Read Time for Clock-Controlled Interrupt
Possible errors
6 - 46
Note
If, when reading out the timed job, the job type is '0' and all the
remaining parameters are 'F' or 'FF' (hex) in the data field, no
timed job is active.
This status can occur in the following situations:
a) there was a COLD RESTART without a timed job being
generated
b) when a "one-time" timed job was due
or
c) when you have cancelled a job.
The errors listed in the following table can occur. If one of these errors
occurs, the system program sets the RLO to '1' and writes the error
IDs listed in the table to ACCU 1.
Table 6-13
Error IDs of OB 151 in ACCU-1-L
ID
Meaning
9701H
Data block not loaded
970FH
Multiple call for the block
9710H
Wrong mode ("process interrupts via IB 0 = on")
9711H
Illegal function no.
9712H
Address area type illegal
9713H
Data block no. illegal
9714H
"Number of the 1st data field word" illegal
9715H
Data block length less than 4 words
9721H
Year specification in the data field illegal
9722H
Month specification in the data field illegal
9723H
Day of month specification in the data field illegal
9724H
Weekday specification in the data field illegal
9725H
Hour specification in the data field illegal
9726H
Minute specification in the data field illegal
9727H
Second specification in the data field illegal
9728H
1/100 seconds in the data field not equal to 0
9729H
Hour format not equal to setting in OB121/OB 150
972AH
Job type illegal
Note
If incorrect parameters are assigned and a valid timed job was
previously generated, the error IDs listed above are transferred;
the previously generated timed job, however, remains active.
CPU 948 Programming Guide
C79000-G8576-C848-04

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