n
Update OB1 process image cyclically
–
This parameter is not relevant.
n
Scan cycle monitoring time
–
Here the scan cycle monitoring time in milliseconds may be set.
–
If the scan cycle time exceeds the scan cycle monitoring time, the CPU enters the
STOP mode.
–
Possible reasons for exceeding the time are:
- Communication processes
- a series of interrupt events
- an error in the CPU program
n
Minimum scan cycle time
–
This parameter is not relevant.
n
Scan cycle load from Communication
–
Using this parameter you can control the duration of communication processes,
which always extend the scan cycle time so it does not exceed a specified length.
–
If the cycle load from communication is set to 50%, the scan cycle time of OB 1
can be doubled. At the same time, the scan cycle time of OB 1 is still being influ-
enced by asynchronous events (e.g. hardware interrupts) as well.
n
Size of the process image input/output area
–
Here the size of the process image max. 2048 for the input/output periphery may
be fixed (default: 256).
n
OB85 call up at I/O access error
–
The preset reaction of the CPU may be changed to an I/O access error that
occurs during the update of the process image by the system.
–
The VIPA CPU is preset such that OB 85 is not called if an I/O access error
occurs and no entry is made in the diagnostic buffer either.
n
Clock memory
–
Activate the check box if you want to use clock memory and enter the number of
the memory byte.
The selected memory byte cannot be used for temporary data storage.
n
Number of Memory bytes from MB0
–
Enter the number of retentive memory bytes from memory byte 0 onwards.
n
Number of S7 Timers from T0
–
Enter the number of retentive S7 timers from T0 onwards. Each S7 timer occu-
pies 2bytes.
n
Number of S7 Counters from C0
–
Enter the number of retentive S7 counter from C0 onwards.
n
Areas
–
This parameter is not supported.
n
Priority
–
Here the priorities are displayed, according to which the hardware interrupt OBs
are processed (hardware interrupt, time-delay interrupt, async. error interrupts).
n
Priority
–
This value is fixed to 2.
n
Active
–
By enabling
‘Active’
the time-of-day interrupt function is enabled.
Cycle / Clock memory
Retentive Memory
Interrupts
Time-of-day interrupts
VIPA System MICRO
Deployment CPU M13-CCF0000
Setting standard CPU parameters > Parameter CPU
HB400 | CPU | M13-CCF0000 | en | 18-50
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