When The Module Has Been Operated Without Battery; Clock Data Setting - Mitsubishi Electric Q12DCCPU-V User Manual

6
PREPARATORY PROCEDURES AND SETTING
6.7.4
This section provides the precautions for having operated the module without battery.
IMPORTANT
A battery must be installed for operation.
If the system has been operated with no battery installed, perform the shutdown
operation before powering off or resetting the C Controller system. (
section)
The standard ROM and battery-backed-up RAM data being accessed may be corrupted,
or a file system error may occur.
(1) Clock data setting when the C Controller system is powered on without
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- 54 6.7 Specifications, Installation, and Replacement of the Battery

6.7.4 When the module has been operated without battery

When the module has been operated without battery
battery installed (clock data not guaranteed)
If the C Controller system is powered on without a battery installed in the C Controller
module, the system starts up with unreliable clock data.
If this occurs, the event history file and/or programs using clock data will not operate
properly. Set clock data by either of the following methods.
• Open the <<Online operation>> tab of C Controller setting utility, click the
button, and set clock data in the <<Clock>> tab.
Figure 6.45 Clock data setting
• Call the QBF_SetTime function from the user program.
Q12DCCPU-V Q06CCPU-V Q06CCPU-V-B
(2) in this
Detail