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APPENDICES
(2) System information
Number
Name
Meaning
Status of CPU
SD200
Status of switch
switch
Status of
SD201
LED status
CPU-LED
Operating
Operating status
SD203
status of CPU
of CPU
Table App. 3.4. Special register
Explanation
• The CPU switch status is stored in the following format:
to
to
b15
b12 b11
b8 b7
3)
Empty
0: RUN
1): CPU switch status
1: STOP
2: L.CLR
b4 corresponds to memory card
2): Memory card
A, and b5 corresponds to
switch
memory card B.
0: OFF, 1: ON
b8 through b12 correspond to
SW1 through SW5 of system
3): DIP switch
setting switch 1.
b14 and b15 correspond to SW1
and SW2 of system setting switch
2, respectively.
OFF at 0; ON at 1
• The following bit patterns store the status of the LEDs on the CPU
module:
• 0 is off, 1 is on, and 2 is flicker
to
to
b15
b12b11
b8 b7
8)
7)
6)
5)
1): RUN 5): BOOT
2): ERROR 6): CARD A (memory card A)
3): USER 7): CARD B (memory card B)
4): BAT.ALARM 8): Empty
• The CPU operating status is stored as indicated in the following figure:
b15
to
b12 b11
to
b8 b7
1): Operating status
0:
RUN
of CPU
1:
STEP-RUN
2:
STOP
3:
PAUSE
2): STOP/PAUSE
0:
Instruction in remote operation program
cause
from RUN/STOP switch
1:
Remote contact
2:
Remote operation from GX Developer/
serial communication, etc.
3:
Internal program instruction
Note: Priority is
4: Error
earliest first
App - 80
(When Set)
to
to
b4 b3
b0
2)
1)
S (Every END
to
to
b4 b3
b0
4)
3)
2)
1)
to
b4 b3
to
b0
2)
1)
S (Every END
Corres-
Set by
ponding
Corresponding
ACPU
D9
New
processing)
S (Status
New
change)
D9015
format
processing)
change
CPU
QnA
QnA
QnA
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