Relationship Between Remote Operation And Cpu Module - Mitsubishi Electric FX5 User Manual
Melsec iq-f series
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- Programming manual (1112 pages) ,
- User manual (958 pages) ,
- Reference manual (44 pages)
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Method using external devices that use SLMP
Refer to the following.
MELSEC iQ-F FX5 User's Manual (SLMP)
When executing remote RESET, the settings that allow the remote reset of the CPU parameter must be
written to CPU module beforehand. In the case that they are not set, remote RESET will not be possible.
Precautions
■Remote RESET in RUN status
When the CPU module is in RUN status, it cannot be reset by remote RESET. Change the CPU module to STOP status by
operations like remote STOP and then execute remote RESET.
■State after completion of the reset process
When the reset process is completed on a CPU module on which remote RESET was executed, the CPU module will change
to an operation status set by the RUN/STOP/RESET switch. Setting the RUN/STOP/RESET switch to the STOP position, will
change the status to STOP and setting the switch to the RUN position will change the status to RUN.
• Note that if a remote RESET is executed when the CPU module has stopped due to an error, the CPU
module will change to an operation status set by the RUN/STOP/RESET switch, by reset process
completion.
• If status of CPU module does not change even after executing remote RESET by engineering tool, check
the remote reset settings in the CPU parameter. If it is not set, even after completion of the remote process
of engineering tool, reset process of the CPU module will not be carried out.
■When an error occurs due to noise
When there an error due to noise, exercise caution as there is a possibility that PLC cannot be reset by remote RESET. When
reset by remote RESET is not possible, either execute reset by RUN/STOP/RESET switch or once again start up the power of
CPU module.
12.4
Relationship Between Remote Operation and CPU
Module
Relationship between remote operation and RUN/STOP status of the CPU module
The following table shows operation status of the CPU module by the combination of remote operation and RUN/STOP status
of the CPU module.
Switch RUN/STOP status
RUN
STOP
*1 When executing by the RUN contact, setting of RUN contact is required in the CPU parameter.
*2 Remote reset setting is required in the CPU parameter.
*3 When a CPU module is changed to STOP status by a remote operation, remote reset is possible.
*4 Includes even the cases where CPU module has stopped due to an error.
Remote operation
*1
RUN
STOP
RUN
STOP
STOP
STOP
12.4 Relationship Between Remote Operation and CPU Module
PAUSE
RESET
PAUSE
Operation not possible
STOP
RESET
12 REMOTE OPERATION
12
*2
*3
*4
109
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