Mitsubishi Electric Q01UCPU User Manual page 319

(2) Operation history file
The following describes the operation history file.
(a) Save destination memory
The operation history file can be saved in one of the following.
• Standard ROM
• SD memory card
Select the save destination memory in the RAS tab of the PLC parameter. (
When the SD memory card is set as the save destination and the write protect switch of the SD memory card is
enabled (write inhibited), the operation history is not saved. Therefore, if the write protect switch of the SD
memory card is changed to be enabled during operation, an error occurs when the operation to be stored into
operation history is performed after the write protect switch is enabled.
(b) File format
The file format of the operation history file is binary file. The operation history can be checked in the
programming tool. (
(c) File name
The file name and extension of the operation history file is fixed to OPERATE.QOL.
Page 323, Section 3.38.2)
CHAPTER 3 FUNCTIONS
Page 439, Appendix 1.2.4)
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