7 REMOTE OPERATION
7.1 Remote RUN/STOP
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7
7 REMOTE OPERATION
The operating status of the CPU module can be changed using an engineering tool or program, or dedicated instructions from
the module. The following types of remote operation are available:
• Remote RUN/STOP
• Remote PAUSE
• Remote RESET
7.1 Remote RUN/STOP
This function externally changes the CPU module status to RUN or STOP with the RUN/STOP/RESET switch of the CPU
module set to RUN. This function is useful to RUN or STOP a CPU module located in an unaccessible place, or to RUN or
STOP a CPU module located on the control panel by using an external signal.
Executing method
The following methods are available to execute remote RUN/STOP:
Using a contact
Set RUN contact in the RUN-PAUSE contact setting. (Page 143 Setting RUN-PAUSE Contacts) When the END
processing for the scan where the RUN contact is turned on is executed, SM203 (STOP contact) turns on to change the CPU
module status to STOP and stop the operation. When the RUN contact is turned off, the CPU module exits the STOP state
and resumes the program operation from the step 0.
Using an engineering tool
Perform remote RUN/STOP with the remote operation of the engineering tool. ( GX Works3 Operating Manual)
By an external device using SLMP
Perform remote RUN/STOP with the SLMP command. ( SLMP Reference Manual)
Using the module dedicated instructions
Perform remote RUN/STOP with the dedicated instructions of a network module. ( MELSEC iQ-R Programming Manual
(Module Dedicated Instructions))
• When using the Process CPU (redundant mode), refer to the following as well.
Page 435 FUNCTIONS
• When using the SIL2 Process CPU, refer to the following as well.
Page 605 FUNCTIONS
• When using the Safety CPU, refer to the following as well.
Page 535 FUNCTIONS
(1) When the RUN contact is turned off, the CPU
module status changes to RUN and the program
is resumed from the step 0.
(2) SM203 turns on when the END processing for the
scan where the set RUN contact is turned on is
executed.
(3) When the RUN contact is turned on, the CPU
module executes the operation until the END
instruction and enters the STOP state.
RnCPU
RnENCPU
RnSFCPU RnSFCPU
RnPSFCPU RnPSFCPU
RnPCPURnPCPU
(Standard) (Safety)(Standard) (Safety)
(Redundant)
(Process)
(1)
0 0
ON
OFF
ON
OFF
SM203
END
RUN
(2)
(3)
STOP RUN
END
Setup RUN contact
RUN/STOP state
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