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

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6.7 Specifications, Installation, and Replacement of the Battery
6.7.4 When the module has been operated without battery
6
PREPARATORY PROCEDURES AND SETTING
6.7.4 When the module has been operated without battery
This section provides the precautions for having operated the module without battery.
(1) Clock data setting when the C Controller system is powered on without
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.
• Call the QBF_SetTime function from the user program.
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. (
(2) in this
section)
The standard ROM and battery-backed-up RAM data being accessed may be corrupted,
or a file system error may occur.
Figure 6.45 Clock data setting
Q12DCCPU-V
Q06CCPU-V Q06CCPU-V-B
Detail