Scheduled Interrupts - Omron CJ - INSTRUCTIONS REFERENCE MANUAL 07-2009 Reference Manual

3. Instructions
Name
Interrupt Task Error
Flag
Duplicate Refresh
Error Flag
Interrupt Task Error
Cause Flag
Interrupt Task Error
Task Number
Related PLC Setup Settings

Scheduled Interrupts

Name
Scheduled Interrupt
Interval
Power OFF Interrupt
Name
Power OFF Interrupt
Task
Power OFF Detection
Delay Time
702
Address
A402.13 ON in the following cases:
1. An interrupt task longer than 10 ms was executed during I/O refreshing with a C200H Special I/O
Unit or Remote I/O Slave Rack. (CS Series only)
2. Interrupt Task Error Detection is enabled in the PLC Setup, and one of the following conditions
occurs for the same Special I/O Unit.
• There is a conflict between an IORF(097), FIORF(225), IORD(222), or IOWR(223) instruction exe-
cuted in the interrupt task and an IORF(097), FIORF(225), IORD(222), or IOWR(223) instruction exe-
cuted in the cyclic task.
• There is a conflict between an IORF(097), FIORF(225), IORD(222), or IOWR(223) instruction exe-
cuted in the interrupt task and the CPU Unit's I/O refreshing (END refreshing).
Note When a Special I/O Unit's Cyclic Refreshing is enabled in the PLC Setup, and an IORF(097),
FIORF(225) (CJ1-H-R and CJ2 only), IORD(222), or IOWR(223) instruction is executed for the
same Special I/O Unit, there will be duplicate refreshing and an Interrupt Task Error will occur.
A426.15 Indicates whether Interrupt Task Error 1 or 2 occurred.
A426.00 to For error 1:
A426.11 Indicates the interrupt task number.
For error 2:
Indicates the unit number of the Special I/O Unit where the multiple I/O refreshing occurred.
Specifies the time unit to use to specify the scheduled interrupt time. Set the time unit when
executing scheduled interrupts.
The scheduled interrupt time is set using MSKS(690).
If the Power OFF Interrupt Task setting is turned ON, then a power OFF interrupt task will start if
power turns OFF.
Power OFF is recognized when this time plus the default power OFF detection time (10 to 25 ms for
AC power supplies and 2 to 25 ms for DC power supplies) expires.
Operation
Description
Description
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Settings
10 ms (default)
1.0 ms
0.1 ms
Settings
OFF (default)
ON
0 to 10 ms
(1-ms units)