Omron CJ1G-CPUxx, Instructions Manual

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Interrupt Control Instructions Section 3-20
3-20 Interrupt Control Instructions
3-20-1 SET INTERRUPT MASK: MSKS(690)
Purpose Both I/O interrupt tasks and scheduled interrupt tasks are masked (disabled)
when the PLC enters RUN mode. MSKS(690) can be used to unmask or
mask I/O interrupts and set the time intervals for scheduled interrupts.
MSKS(690) is not supported by the CS1D CPU Units.
Ladder Symbol
Variations
Applicable Program Areas
Operands CS1W-INT01/CJ1W-INT01
Specifying I/O Interrupt Processing and Mask Processing
Note 1. The CS1W-INT01 and the C200HS-INT01 cannot be used at the same
time.
2. All interrupt inputs that have been detected will be cleared when the inter-
rupt mask is cleared.
3. The CJ1W-INT01 Interrupt Input Unit cannot be used with a CJ1 CPU Unit.
Also, I/O interrupt tasks cannot be executed.
The relationship between Interrupt Input Unit unit numbers and interrupt task
numbers is shown in the following table.
N: Interrupt identifier
S: Interrupt data
MSKS(690)
N
S
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
Operand Contents
N Specify the Interrupt Input Unit’s unit number.
0: Unit number 0
1: Unit number 1
S Interrupt mask.
Set to 0000 to FFFF Hex (16 bits per Unit)
Individual bits indicate the following:
0: Enables interrupt
1: Masks interrupt
Unit
number
Interrupt task numbers
0 100 to 115 Bits 00 to 15 of S correspond to the input interrupt
tasks.
1 116 to 131