Mitsubishi Electronics QD75D ユーザーズマニュアル

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MELSEC-Q

13 COMMON FUNCTIONS

[4] Execution data backup method

(1) Execution data backup (writing to the flash ROM) is carried out using the

dedicated instruction "PFWRT". (Refer to Chapter 14 "Dedicated instructions"

for details.)

(2) Refer to Section 7.2 "Data transmission process" for the data transmission

processing at the backup of the execution data.

(3) Execution data backup can also be carried out by the writing of the data

shown in the table below to the QD75 buffer memory using the TO

command/intelligent function device.

The writing to the flash ROM is executed at the time point the data is written

to the QD75 buffer memory.

Buffer memory address

Setting item

Setting

value

Setting details

Axis

Cd.1

Flash ROM write
request

Set "1" (flash ROM write request).

1900

Refer to Section 5.7 "List of control data" for details on the setting details.

When the writing to the flash ROM is complete, "0" will be set in "

Cd.1

Flash

ROM write request" by the QD75 automatically.