Technical data

Errors- which cause an error
OB to be called
Control bit
or ID in
ISTACK
Explanation OB no.
BCF
Operation code error:
- substitution error
- operation code error
- parameter error
OB 27
OB 29
OB 30
LZF
Runtime error:
- call for a block that is not loaded
- transfer error with DBs
- other runtime errors
OB 19
OB 32
OB 31
ADF
Addressing error:
- when accessing the process image
OB 25
QVZ
Timeout:
- in the user program when accessing
I/O modules
- when updating the process image
OB 23
OB 24
ZYK
Cycle error
- the cycle monitoring time was
exceeded
OB 26
WECK-FE
Collision of two time interrupts:
- error processing a time interrupt
OB 33
REG-FE
Controller error:
- error processing a controller
interrupt
OB 34
ABBR
Abort:
- (see Section 5.6.8)
OB 28
S-6
Communication error:
- during data exchange via the second
serial interface
OB 35
The following sections describe each of these causes of errors in more
detail.
Table 5-16
Causes of error and causes of interrupt in RESTART and
RUN, which lead direct to STOP
5
Errors in RUN and in RESTART
CPU 928B Programming Guide
C79000-B8576-C898-01 5 - 39