Mitsubishi Melsec-Q Series User Manual page 266

11.3.1 Display of battery consumption and reduction measures of the
consumption
(1) Battery consumption
The battery consumption represents consumption of the CPU module battery energy.
The larger value of the battery consumption in the table, the more battery per time unit is consumed.
The battery consumption depends on the factors of (a) to (c) as follows.
The following table shows the relationship of the factors and the battery consumption.
(a) Battery
life-prolonging
function
Set
Not set
When the standard RAM is set as a storage location for module error log data, battery consumption will be as
shown in Table11.5.
Table11.5 Battery consumption when module error log data are stored to the standard RAM
(c) Size of file
register file in
standard RAM
(S )
R
<Unit: word>
0K S
R
128K < S
R
384K < S
*1: Applicable to the Q02UCPU, Q03UDCPU, Q04UDHCPU, and Q06UDHCPU if the serial numbers (first five digits) are
"10012" or later.
The current consumption level can be checked by referring to SD118 where the battery consumption value is stored.
*2: For details of the battery life-prolonging function, refer to the following.
( QnUCPU User's Manual (Function Explanation, Program Fundamentals)
*3: For details of the module error log function, refer to the following.
( QnUCPU User's Manual (Function Explanation, Program Fundamentals)
Note1
Note11.1 Basic
The battery consumption value is displayed only for the Universal model QCPU.
11 - 6
Table11.4 Battery consumption and causes for determining the consumption
Factors of battery consumption
(b) Module error log function
*2
----
Not set
Set
Q00U/01U/02U/
Q03UD(E)/
Q04UD(E)HCPU
2
128K
----
384K
----
R
High
Process
Redundant
performance
(c) Size of file register file in
*3
standard RAM (S
<Unit: word>
----
No file registers or 0K < S
128K < S
R
384K < S
Refer to Table11.5.
Battery consumption
Q6UD(E)HCPU
3
3
----
*1
Note1
Battery
consumption
)
R
1
2
128K
R
3
384K
4
R
Q10UD(E)H/
Q13UD(E)H/
Q20UD(E)H/
Q26UD(E)HC
PU
3
4
4