Switch Operation At The Time Of Writing Program; Basic Model Qcpu And Universal Model Qcpu - Mitsubishi Electric Q26UD(E)HCPU User Manual

6.3

Switch Operation at the Time of Writing Program

6.3.1

Basic model QCPU and Universal model QCPU

This section explains the switch operation after a program is written using programming tool.
(1) When writing program with CPU module set to "STOP"
(a) To set to RUN status with device memory data cleared
1.
Set the RUN/STOP/RESET switch to the RESET position once (Approximately 1 second) and return
it to the STOP position.
2.
Set the RUN/STOP/RESET switch to the RUN position.
3.
The CPU module is placed in the RUN status (RUN LED: On).
(b) To set to RUN status with device memory data not cleared (held)
1.
Set the RUN/STOP/RESET switch to the RUN position.
2.
The RUN LED flashes.
3.
Set the RUN/STOP/RESET switch to the STOP position.
4.
Set the RUN/STOP/RESET switch to the RUN position again.
5.
The CPU module is placed in the RUN status (RUN LED: On).
(2) When a program is written while CPU module is running (online change)
No operation is needed for the RUN/STOP/RESET switch of the CPU module. At this time, the device memory
data are not cleared.
*1 When a program was written to the program memory during boot operation, also write the program to the boot source
memory. If the program is not written to the boot source memory, the old program will be executed at the next boot
operation.
*2 When a program is written online in the ladder mode, the changed program is written to the program memory.
When performing boot operation, also write the program to the boot source memory after online change. If the program
is not written to the boot source memory, the old program will be executed at the next boot operation.
For details of the boot operation, refer to the following.
QnUCPU User's Manual (Function Explanation, Program Fundamentals)
When the CPU module is placed in the STOP status by the remote STOP operation of programming tool, it can be set in the
RUN status by the remote RUN operation of programming tool after program write. In that case, no operation is needed for
the RUN/STOP/RESET switch of the CPU module. For details of programming tool, refer to the following.
Operating manual for the programming tool used
180
*1
*2