Mitsubishi Q01CPU User Manual

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11.3 Battery Life and Replacement Procedure
11.3.1 Display of the amount of battery consumption and reduction measures of battery consumption
11
MAINTENANCE AND INSPECTION
11.3.1 Display of the amount of battery consumption and reduction
measures of battery consumption
(1) Amount of battery consumptionNote1
The amount of battery consumption represents consumption of the CPU module
battery.
*1
The more the amount of battery consumption value increases, the more the battery
consumption per unit time increases.
The amount of battery consumption depends on the causes of the following (a) and
(b).
Table11.4 shows the relationship between the combination of causes (a) and (b) and
the amount of battery consumption.
(2) Reduction measures of battery consumption
The following explains measures for reducing the battery consumption to reduce the
amount of battery consumption.
• When storing a file register in standard RAM, minimize the file register file.
• By using the latch data backup function to standard ROM, the battery life-
prolonging function can be valid.
*2
If not powering on the programmable controller for a long time due to such as
long term disuse or shipment, back up the data to the standard ROM.
* 1: For the Q02UCPU, Q03UDCPU, Q04UDHCPU, and Q06UDHCPU, the CPU modules whose first
5 digits of serial number is "10012" or later.
Referring to SD118, storing the amount of battery consumption, permits checking the current
level.
* 2: Except when the battery life-prolonging function has already been set to valid.
Note1
Table11.4 Amount of battery consumption and causes for determining the consumption
Number
Causes determining the amount of battery consumption
Amount of
battery
consumption
(a) Battery
life-prolonging function
(b) File storing status in standard RAM
Size of file register file in standard RAM
(S
R) <Unit: word>
1 Set ---- 1
2
Not set
No file registers or 0k < SR 128k
2
3
128k < SR 384k
3
4 384k < SR 4
Basic
Note11.1
High
Performance
Note11.1
ProcessRedundant
Note11.1Note11.1
Except the Universal model QCPU, the amount of battery consumption is not supported
(supported only with the Universal model QCPU).
Basic
Note11.1
High
Performance
Note11.1
Process
Redundant
Note11.1Note11.1
Basic
Note11.1
High
Performance
Note11.1
Process
Redundant
Note11.1
Note11.1

Mitsubishi Q01CPU Specifications

General

Brand	Mitsubishi
Model	Q01CPU
Category	Controller
Language	English