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2 Instructions
2-306
CP1E CPU Unit Instructions Reference Manual(W483)
DI
Applicable Program Areas
Flags
Function
DI(693) is executed from the main program to temporarily disable all interrupt tasks (I/O interrupts,
scheduled interrupts).
Precautions
All interrupt tasks will remain disabled until EI(694) is executed.
DI(693) cannot be executed from an interrupt task.
Sample program
Instruction Mnemonic Variations
Function
code
Function
DISABLE INTERRUPTS DI @DI 693
Disables execution of all interrupt tasks except the
power OFF interrupt.
Symbol
DI
Area Step program areas Subroutines Interrupt tasks
Usage OK OK Not allowed
Name Label Operation
Error Flag P_ER • ON if DI(693) is executed from an interrupt task.
• OFF in all other cases.
When CIO 0.00 is ON in the following example,
DI(693) disables all interrupt tasks.
DI(693)
Disables execution of
all interrupt tasks
0.00
DI