Mitsubishi Electric MELSEC-L LD75P User Manual page 615

(4) Execution data backup method
• Execution data backup (writing to the flash ROM) is carried out using the dedicated instruction "ZP.PFWRT".
(Refer to  Page 619, CHAPTER 14 for details.)
• Refer to  Page 308, Section 7.2 for the data transmission processing at the backup of the execution
data.
• Execution data backup can also be carried out by the writing of the data shown in the table below to the
LD75 buffer memory using the TO instruction /intelligent function device.
The writing to the flash ROM is executed at the time point the data is written to the LD75 buffer memory.
Setting item
[Cd.1] Flash ROM write request
Refer to  Page 211, Section 5.7 for the information on detail settings.
When the writing to the flash ROM is complete, "0" will be set in "[Cd.1] Flash ROM write request" by the LD75
automatically.
Setting
Setting details
value
1 Set "1" (flash ROM write request).
CHAPTER 13 COMMON FUNCTIONS
Buffer memory address
Axis 1 Axis 2 Axis 3 Axis 4
1900
613
13