Mitsubishi Electric MELSEC-Q00U(J)CPU User Manual page 254

To match the data in the program memory and those in the program cache memory, configure the setting to transfer the data
of the program cache memory to the program memory from "Options" screen.
[Tool]
*2 The transferring of the data in the program cache memory to the program memory is set by default.
Other than the above, you can also use "Program Memory Batch Download" to match the data in the program memory and
those in the program cache memory.
(2) Execution timing
The execution timing of this function is described below.
• When the program is executed
• When data are verified or data are read from the programmable controller
• When any one of the write operations listed under (1) in this section is performed
*3 To perform the auto recovery processing when any one of the write operations listed under (1) in this section is
performed, check the version of the CPU module and use the programming tool with the following version or later.
• GX Works2: 1.80J or later
• GX Developer: 8.102G or later
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[Options]
*2
( Page 178, Section 3.12.3 (4))
*3