Chapter 4 CPU Specifications
XBC E-Type Main Unit
4-4
Ver. 1
4.3 Data Backup Time
When RTC module is not installed in main unit, data is kept by super capacitor.
Type
Data backup time
Remark
XBC
“E” type
With super-capacitor
5 Days
At normal temperature 77°F
(25°C)
RTC module installed
3 Years
Super capacitor will be recharged when power is on for over 30 minutes.
In case super capacitor is not charged enough or power is off longer than data backup time, latch data is not
kept and warning occurs. At this time, result and measure are as follows.
1. Result
a. RUN mode
i. In Remote Run mode, operation mode changes to Stop mode. In case of Local
Run mode, it operates normally with abnormal data backup warning
ii. In Stop mode, abnormal data backup warning occurs.
b. Retentive Memory (latch area)
i. Latch area 1 & 2: all data are cleared into “0”.
ii. K area & F area: all data are cleared into “0”.
2. Measure
a. In the event abnormal data backup warning occurs when turning off and on within data
backup time, technical assistance of main unit is necessary.
Notice
Above data backup time can vary depending on battery temperature.
Summary of Contents for XBC-DN10E
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