Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual page 370

• For SM777, the value (on/off) set at the execution of an interrupt program / a fixed scan execution type
program / an event execution type program triggered by occurrence of an interrupt is valid. For this reason,
when the set value is changed while a program is being executed, the value changed does not become
valid until the next time any of these programs is executed.
• On/off setting for SM777 cannot be specified for each program file because it is enabled for each CPU
module.
• When the local device monitor is executed, the monitor switches to the applicable local device.
Consequently, if SM777 is off, when an interrupt occurs immediately after switching, and a local device is
accessed, the local device being monitored by the local device monitor is used. (The local device for the
program being run prior to the interrupt (program immediately before END) is not accessed.)
Clearing local device
Local device can be cleared to 0 by the following operations:
• CPU module is powered off and on or is reset.
• CPU module status is changed from STOP to RUN.
• CPU module status is changed from PAUSE to RUN.
21 DEVICES
368
21.19 Local Device