Mitsubishi Electric MELSEC iQ-R Series User Manual page 72

■For an interrupt by a link device (LB, LW, LX)
The specified interrupt program can be executed from another station in the condition of "ON/OFF" for the link device (LB, LX)
or "Values Match/Values Mismatch" for the link register (LW).
Existing program
Execution
conditions
B100
= W100 K256
An interrupt by the link device (LB, LW, LX) can be used for the normal cyclic transmission and direct access destination.
Ex.
The following is a setting example to execute the interrupt program corresponding to the interrupt pointer I50 of the control
station (station No.15) when LB100 turns on in the normal station (station No.3).
CPU module
J7\B100
1.
Set the interrupt setting parameters for the control station (station No.15) of the RJ71LP21-25 as shown below.
• If the program is fast, the execution time of the interrupt program may be affected, thereby leading to the
effect of the interrupt program not being fully exerted and resulting in the scan time being extended.
• When multiple interrupts occur simultaneously, an operation delay may occur.
• This function cannot be used during offline or online test operation.
• Do not use the rising/falling edge of a specified device (such as the PLS and PLF instructions) as a trigger
of an interrupt program because a change in the device may fail to be read.
2 PARAMETER SETTINGS
70
2.4 Application Settings
Set by parameters
Receive
processing 1
Receive
processing 2
END
RJ71LP21-25 RJ71LP21-25
Station No.3 Station No.15
LB
LB100
Network No.7
Set the execution conditions using
the interrupt setting parameters.
SM400
I50
SM400
I51
CPU module
LB
Interrupt program
execution
SM400
I50
LB100
FEND
Receive
processing 1
IRET
Receive
processing 2
IRET
END
Receive
processing
IRET