Mitsubishi Electric RD77MS2 User Manual page 551

(6) Writing the flash ROM by a CPU module request
The following transmission process is carried out by setting "1" in "[Cd.1] Flash ROM write request".
• The "parameters", "positioning data (No. 1 to 600)", "block start data (No. 7000 to 7004)" and "servo parameter" in the
buffer memory/internal memory area are transmitted to the flash ROM/internal memory (nonvolatile).
(7) Writing the flash ROM by a request from the engineering tool
The following transmission processes are carried out with the [flash ROM write request] from the engineering tool.
• The "parameters", "positioning data (No. 1 to 600)", "block start data (No. 7000 to 7004)" and "servo parameter" in the
buffer memory/internal memory area are transmitted to the flash ROM/internal memory (nonvolatile).
*1 This transmission process is the same as (6) above.
• Do not turn the power OFF or reset the CPU module while writing to the flash ROM. 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/internal
memory (nonvolatile) will be lost.
• Do not write the data to the buffer memory/internal memory before writing to the flash ROM is completed.
• The number of writes to the flash ROM with the program is 25 max. while the power is turned ON. Writing to
the flash ROM beyond 25 times will cause the error "Flash ROM write number error" (error code: 1080H).
Refer to Page 591 List of Error Codes for details.
• Monitoring is the number of writes to the flash ROM after power supply ON by the "[Md.19] Number of write
accesses to flash ROM".
12 DATA USED FOR POSITIONING CONTROL
12.9 Memory Configuration and Data Process
12
549