Mitsubishi Melsec-Q Series User Manual page 597

(2) SRAM card battery life when the serial number (first five digits) of the QCPU is
"04011" or earlier
SRAM card
Q2MEM-1MBS
Q2MEM-2MBS
(3) Number of file register points according to the serial number (first five digits)
Q02CPU
Serial number (first five digits) is "04011" or earlier
Q02HCPU
Q06HCPU
Serial number (first five digits) is "04012" or later
Serial number (first five digits) is "02091" or earlier
Q12HCPU
Q25HCPU
Serial number (first five digits) is "02092" or later
TableApp.7 SRAM card Battery life
Power-on
Guaranteed value
time ratio
(MIN)
690 hours
0%
0.07 years
11,784 hours
100%
1.34 years
TableApp.8 File register points
CPU module model name
Battery life
After SM52 turned on
Actual service value
(Backup power time
(Reference Value)
after an alarm)
6,336 hours
0.72 years
13,872 hours
1.58 years
Number of file register points
32K points
32K points
64K points
32K points
128K points
APPENDICES
1
2
3
App
8 hours
8 hours
APPEN-
DIX
6
7
8
App - 30