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Explanations of PLC Setup Settings Section 7-2
Scheduled Interrupt Time
Units
This setting determines the time units for the scheduled interrupt interval set-
tings. Set the scheduled interrupt interval from the program with MSKS(690).
Note This setting cannot be changed while the CPU Unit is in RUN or MONITOR
mode.
Instruction Error
Operation
This setting determines whether instruction execution errors are treated as
non-fatal (0) or fatal errors (1). A program error will be generated as an
instruction error if any of the following flags is turned ON.
If this setting is OFF (0), PLC operation will continue after one of these errors.
If this setting is ON (1), PLC operation will stop after one of these errors.
Minimum Cycle Time Set the minimum cycle time to a non-zero value to eliminate inconsistencies in
I/O responses. This setting is effective only when the actual cycle time is
shorter than the minimum cycle time setting. If the actual cycle time is longer
than the minimum cycle time setting, the actual cycle time will remain
unchanged.
Note The minimum cycle time setting cannot be changed while the CPU Unit is in
RUN or MONITOR mode.
Scheduled Interrupt Time Units
Interval
Scheduled interrupt task
Instruction error flag Address Cause
Instruction Processing Error Flag A29508 The ER Flag was turned ON.
Indirect DM/EM BCD Error Flag A29509 The contents of a DM/EM word wasn’t
BCD when BCD was required for indi-
rect addressing.
Illegal Access Error Flag A29510 Attempted to access part of memory
that is off-limits from the program.
Fixed cycle time
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