Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual page 890

Programmable controllers

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Interrupt Control Instructions

Operation Examples

Reads the operating status of the internal timer of the scheduled interrupt

task specified by N, and outputs that information to D. With this function,

MSKR(692) can indicate whether the internal timer is stopped or operat-

ing, and indicate the interrupt time interval if it is operating.

4. N = 14 or 15: Reading a Scheduled Interrupt Task's Internal Timer PV

Reads the internal timer PV of the scheduled interrupt task specified by N,

and outputs that information to D. The internal timer's PV is the time that

has elapsed since the scheduled interrupt started (when MSKS(690) was

executed), or the time that has elapsed since the last scheduled interrupt

started (CJ1M CPU Units only).

1. The CJ1M-CPU11/21 supports only one scheduled interrupt task, interrupt

task 2 for scheduled interrupt 0.

2. The time unit used to set the scheduled interrupt time is set as the Sched-

ule Interrupt Interval in the PLC Setup.

MSKR(692) can be executed in the main program or in interrupt tasks.

Example for CS1W-INT01/CJ1W-INT01

When CIO 000000 turns ON in the following example, MSKR(692) reads the

current mask status of Interrupt Input Unit 2 and stores it in D00100.

0: Interrupt enabled

1: Interrupt masked

When CIO 000001 turns ON in the following example, MSKS(690) reads the

rising/falling edge designations for Interrupt Input Unit 0 and stores it in

0: Rising edge

1: Falling edge

Example for Scheduled Interrupts

When W00000 goes from OFF to ON while the internal timer is operating for

scheduled interrupt 1, MSKR(692) reads the interrupt time interval setting and

outputs the setting to D00100.

ON if N is not within the specified range of 0 to 5 (0 to 15

for the CJ1M).

OFF in all other cases.

Section 3-20

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