Mitsubishi Electric MELCEC Q Series User Manual page 229

APPENDICES
Number Name
Abnormal base
D9068
unit
PC
D9072 communication
check
D9073 Clock data
D9074 Clock data
D9075 Clock data
Result of writing
D9075
to built-in ROM
D9076 Clock data
Status of writing
D9076
to built-in ROM
Table App.2.2 Special Register List (continued)
Description
Stores the bit pattern of the base unit in abnormal
condition.
When basic base unit is abnormal: Bit 0 turns on.
When 1st extension base unit is abnormal: Bit 1 turns
Stores the bit pattern on.
of the abnormal base When 2nd extension base unit is abnormal: Bit 2 turns
unit on.
When 7th extension base unit is abnormal: Bit 7 turns
on.
• In the loopback test mode of individual AJ71C24, the
Data check by
AJ71C24 automatically executes data write/read and
AJ71C24
communication check.
• Two digits showing the year (XX of 19XX) and month
are stored to D9073 in BCD codes, as shown below.
Clock data
(year, month)
• Two digits showing the day and time are stored to
D9074 in BCD codes, as shown below.
Clock data
(day, time)
• Two digits showing the minute and second are stored
to D9075 in BCD codes, as shown below.
Clock data
B15
(minute, second)
Stores the status of writing to the built-in ROM.
0:
F1
H
Stores the status of
F2
H
writing to the built-in
F3
H
ROM
F4
H
FE
H
FF
H
• Two day of the week is stored to D9076 in BCD codes,
as shown below.
B15
Clock data
(day of the week)
Stores the status of writing (enabled/disabled) to the
Stores the status of built-in ROM.
writing (enabled/ Statuses of DIP switch 3 and M9073
disabled) to the 0:
built-in ROM 1:
2:
Details
:
:
. . . . . . . . . . . . . . . . . .
B15 B12 B11 B8 B7 B4 B3
Year Month
. . . . . . . . . . . . . . . . . .
B15 B12 B11 B8 B7 B4 B3
Day Time
. . . . . . . . . . . . . . . . . .
B12 B11 B8 B7 B4 B3
Minute Second
Writing enabled
: During RAM operation
: Writing to built-in ROM disabled
: Failed to erase
: Failed to write
: Checking erasing
: During writing
. . . . . . . . . . . . . . . . . . . . . . . . .
B12 B11 B8 B7 B4 B3
These digits are always
set to 0.
SW3 is off, M9073 is off/on
SW3 is on, M9073 is off
SW3 is on, M9073 is on
App - 35
Applicable CPU
—
. . . . . . . .
B0 Example:
1987,July
H8707
. . . . . . . .
B0
Example: —
31th,10
o'clock
H3110
. . . . . . . .
B0
Example:
35 minutes,
48 seconds
H3548
—
B0
Day of the week
—
0 Sunday
1 Monday
2 Tuesday
3 Wednesday
4 Thursday
5 Friday
6 Saturday
—
Dedicated to
QCPU-A
(A Mode)
Usable with all
types of CPUs.
Dedicated to
A2CCPUC24
(-PRF)
Dedicated to
A2CCPUC24
(-PRF)
Dedicated to
QCPU-A
(A Mode)
Dedicated to
A2CCPUC24
(-PRF)
Dedicated to
QCPU-A
(A Mode)