Mitsubishi Electric R64MTCPU - Event Task Disable: DI

262
4 OPERATION CONTROL PROGRAMS
4.19 Other Instructions
Event task disable: DI
Setting data
There are no setting data.
Processing details
• The execution of an event task is disabled.
• If an external interrupt or PLC interrupt occurs after execution of the DI instruction, the corresponding event task is
executed once at the execution of the EI instruction. (If two or more external interrupts or PLC interrupts occur during DI,
the corresponding event task is executed only once at the execution of the EI instruction.)
• During DI, a fixed-cycle event task is not executed.
• The execution of an NMI task cannot be disabled.
• The DI status is established at power-on or reset of the Multiple CPU system. EI/DI status does not change by the ON/OFF
of "[Rq.1120] PLC ready flag (R: M30000/Q: M2000)".
Operation error
An operation error will occur if:
• This instruction is used with other than a normal task.
Program example
■Program which disables the execution of an event task.
Format Number of basic steps Usable steps
F/FS G
DI 1 
DI