Mitsubishi Melsec-Q QD75D1, User Manual

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Appendix - 103
MELSEC-Q
APPENDICES
Appendix 10.8 Parameter initialization function
The "parameter initialization function" is used to return the setting data set in the QD75
buffer memory and flash ROM to their factory-set initial values.
The details shown below explain about the "parameter initialization function".
[1] Parameter initialization means
[2] Control details
[3] Control Precautions
[4] Parameter initialization method
[1] Parameter initialization means
•
Initialization is executed with a program.
•
Initialization is executed by GX Works2.
Refer to GX Works2 Version1 Operating Manual (Intelligent Function Module) for
the execution method by GX Works2.
[2] Control details
The following table shows the setting data initialized by the "parameter
initialization function".
(The data initialized are "buffer memory" and " flash ROM " setting data.)
Setting data
Basic parameters ( Pr.1 to Pr.10 )
Detailed parameters ( Pr.11 to Pr.42 ,
Pr.150
)
OPR basic parameters ( Pr.43 to Pr.48 )
OPR detailed parameters ( Pr.49 to Pr.57 )
Positioning data (No.1 to No.600)
Block start data (No.7000 to No.7004)
[3] Control Precautions
(1) Parameter initialization is only executed when the positioning control is not
carried out (when the PLC READY signal (Y0) is OFF).
The warning "In PLC READY" (warning code: 111) will occur if executed
when the PLC READY [Y0] is ON.
(2) Writing to the flash ROM can be executed up to 100,000 times.
If writing to the flash ROM exceeds 100,000 times, the writing may become
impossible, and an error "Flash ROM write error" (error code: 801) will occur.
(3) A "CPU module reset" or "CPU module power restart" must be carried out
after the parameters are initialized.
(4) If an error occurs on the parameter set in the QD75 when the PLC READY
signal [Y0] is turned ON, the QD75 READY signal [X0] will not be turned ON
and the control cannot be carried out.
Important
Parameter initialization takes about 10 seconds. (Up to 30 seconds are sometimes required.)
Do not turn the power ON/OFF; reset the CPU module, etc., during parameter initialization. If
the power is turned OFF or the CPU module is reset to forcibly end the process, the data
backed up in the flash ROM will be lost.