1-17
AL3V
D2002
IC2002
D2003
BT2001
GND
X2003
32kHz
CE
SCLK
SIO
VSS
8
7
6
5
38
39
40
41
VDD
OSCIN
OSCOUT
INTR
IRQO
TCLKC
IRQ1
TCLKD
1
2
3
4
IC2001
SYS CPU
Setting procedure
(1) Press the 8 or 9 button to move the cursor to MEM. EDIT.
(2) Press the : button to make the ADR parameter blink.
(3) Press the 8 or 9 button to select ADR parameter “391”.
(4) Press the : button to make the DATA parameter blink.
(5) Press the 8 or 9 button to set ADR = “391” for the ID.
(6) Press the [SET] button to confirm the DATA parameter.
(7) In the same manner, select ADR parameter “392” and “393” to set the ID data.
Fig. 1.8.10 ID Label Attachment Position
1.8.11 Real-time clock
The IC2002 (RS5C314) on the MAIN circuit board is a CMOS real-time clock IC that sends time/calendar data to the CPU via serial
transmission. When power is not being supplied to the BT2001, there is a secondary battery (3V) to backup the IC2002. By charging for
4 hours, it provides 3 months of backup. When power is being supplied, AL3V is sent through D2002 to the IC2002 8pin, and through
D2003 the BT2001 enters a state of being charged. When external power supply (AL3V) ceases, BT2001 is discharged through D2002
and the current is sent to the IC2002 8pin, resulting in a state of backup.
Fig. 1.8.11 Real-time Clock Circuit
ID Display Label
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