Omron CQM1H-SCB41 Operation Manual page 109

Using Protocol Macros
Execution
condition
Abort
condition
Abort
condition
Forced Abort
Bit (IR 20711)
Protocol Macro
Executing Flag
(IR 20708)
94
Precautions on Using the Forced Abort Bit
The Protocol Macro Executing Flag will turn OFF as soon as the Forced Abort
Bit is turned ON from the ladder program. The Forced Abort Bit must remain
ON for at least 15 ms longer than the CPU Unit cycle time. Thus, the
sequence will not be aborted if the Forced Abort Bit is turned OFF as soon as
the Protocol Macro Executing Flag turns OFF.
If only the Protocol Macro Execution Flag is used in an NC condition for
PMCR( ), PMCR( ) will be executed during abort processing, and system
error (FAL 9C) will occur. Wait at least 15 ms longer than the cycle time after
turning ON the Forced Abort Bit before executing the next protocol macro.
In the following example, the Forced Abort Bit is turned ON and an interlock is
created for the PMCR( ) instruction for 30 ms before the Forced Abort Bit is
turned OFF.
Protocol Macro
Forced Abort
Executing Flag
T000
A
A
T000
A
T000
Bit
PMCR
TIMH
#0003
20711
1 cycle
30 ms
Section 5-7
A
000
Forced Abort Bit