Toshiba GR200 Series Instruction Manual page 493

Supervision of real-time clock (RTC error)
9.2.12
The state of the real time clock (RTC) is checked every five minutes; the error message is
displayed when the clock stops.
Error level
(i)
Generally, the default error level has been set at level 3 (Minor error), but the user can program
the level using setting [CHK_RTC:LVl]; then, set On for the setting [CHK_RTC:Sw]. The
manufacturer sets five (5) minutes is set to detect the failure; it is reset within five minutes
when the clock starts to operate again.
Error message
(ii)
When detecting an error, an error message can be shown on the LCD screen and an LED is lit.
Table 9.2-24 Error messages provided by the supervisor in CHK_RTC
Message and level
CP*_(RTC) error
Error level
Table 9.2-25 Detailed information expressed in Hexadecimal in CHK_RTC
Display
area
Top
00000001: shows that the error exists in
the RTC
row
Middle Time in the minute when the RTC
row stopped
Bottom
(No information displayed)
row
Error detection is performed on the RTC on the following
module:
CP1M:
Minor error (Level 3)
Meaning of the detailed information
Left column
- 479 -
Meaning of the information
CPU module
Right column
Time in the second when the RTC stopped
(No information displayed)
(No information displayed)
6F2S1931 (0.20)
Centralized GRB200
(Soft: 030, 031, 032, 033, 034)