Omron CP - PROGRAMMING MANUAL 05-2007 - Interrupt Control Instructions

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Interrupt Control Instructions Section 3-19
3-19 Interrupt Control Instructions
This section describes instructions used to control interrupts.
3-19-1 SET INTERRUPT MASK: MSKS(690)
Purpose Both input interrupt tasks and scheduled interrupt tasks are masked (dis-
abled) and the internal timer for scheduled interrupts is stopped when the
PLC enters RUN mode. MSKS(690) can be used to unmask or mask input
interrupts and set the time intervals for scheduled interrupts.
Ladder Symbol
Variations
Applicable Program Areas
Instruction Mnemonic Function code Page
SET INTERRUPT MASK MSKS 690 692
READ INTERRUPT MASK MSKR 692 696
CLEAR INTERRUPT CLI 691 699
DISABLE INTERRUPTS DI 693 702
ENABLE INTERRUPTS EI 694 703
MSKS(690)
N
S
N: Interrupt identifie
r
S: Interrupt data
Variations Executed Each Cycle for ON Condition MSKS(690)
Executed Once for Upward Differentiation @MSKS(690)
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification Not supported
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK