Re-Setting Parameters At Module Replacement - Mitsubishi Electric MELSEC iQ-R Series User Manual

4.4

Re-setting Parameters at Module Replacement

When the parameter is saved to the flash ROM of the RJ71DN91, the content of the flash ROM is deleted by the replacement
of the RJ71DN91. Therefore, the parameter needs to be re-set.
This section describes the procedure to take over the parameter setting in the RJ71DN91 after the replacement.
1.
By using M+RJ71DN91_ReadParam of the module function block, save the parameter, which is set in the buffer memory
of the RJ71DN91 before being replaced, in the internal device of the CPU module.
 MELSEC iQ-R DeviceNet Master/Slave Module Function Block Reference
2.
Replace RJ71DN91.

MELSEC iQ-R Module Configuration Manual
3.
By using M+RJ71DN91_WriteParam of the module function block, write the parameter in the buffer memory of the
RJ71DN91 after being replaced.
 MELSEC iQ-R DeviceNet Master/Slave Module Function Block Reference
4.
Turn on 'Request for saving/clearing parameters to Flash ROM' (Y17) to save the parameter of the buffer memory in the
flash ROM.
Before replacing the RJ71DN91, take one of the following actions to prevent the saved parameter from being
deleted.
• Set the internal device of the target of saving to the latch setting.
• Save the saved data in the SD memory card. (At writing: SP.FWRITE instruction, at reading: SP.FREAD
instruction)
• Record the saved data.
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4.4 Re-setting Parameters at Module Replacement