3.40 DI (CPU Interruption Disable), EI (CPU Interruption Enable)
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Ladder diagram
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Outline of operation
DI
● This instruction disables all interruption programs INTPG and the acceptance of interruption
of fixed cycle execution type PB at the same time as the execution of the instruction.
At this time, the unit in which interruption has occurred suspends the detected interruption.
● Use the ICLR instruction to clear the interruption signals suspended by the unit while the
interruption is disabled.
● To disable or enable the interruption for each unit, a unit's interruption detection function can
be controlled using the IMASK instruction.
EI
● This instruction enables all permitted interruptions.
● Restarts a fixed cycle execution type PB. Starts the execution of the PB after the elapse of
the interval specified after the startup.
● Also accepts the interruption permitted in the unit in which interruption occurs.
● As interruption for the unit in which interruption occurs is disabled after RUN, it is necessary
to enable the interruption of the unit by executing the IMASK instruction.
● It is invalid even if the EI instruction is executed while the interruption is enabled. The
interruption will stay enabled.
3.40 DI (CPU Interruption Disable), EI (CPU Interruption Enable)
3-122 WUME-FP7CPUPGR-12
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