12.7 Special Register List
12
- 83
12
TROUBLESHOOTING
9
EM
C AN
D
LO
W
VOL
TA
G
E
DI
RE
C
T
IVES
10
LO
ADING A
N
D
INST
AL
LA
TION
11
M
A
INTE
NA
NCE
AND
IN
SPE
CTI
O
N
12
TR
OU
BL
ESH
OO
TIN
G
A
P
P
E
NDICE
S
INDE
X
(5) Safety CPU
(6) Memory
Table12.24 Special register
Number
Name
Meaning
Explanation
Set by
(When set)
Corresponding
CPU
SD560
Safety CPU
operation
mode
Safety CPU
operation mode
• Stores the safety CPU operation mode.
S (Status
change)
QS
SD561
TEST MODE
continuous
RUN time
TEST MODE
continuous
RUN time
(seconds)
• Stores the TEST MODE continuous RUN time. (Measured in
seconds)
(RUN time in TEST MODE. Start measurement when STOP &
RUN (Time when operation is STOP is not included.)
• Stores the measurment valve with the range of 1 to
2147483647.
S (Every END)
SD562
Table12.25 Special register
Number
Name
Meaning
Explanation
Set by
(When set)
Corresponding
CPU
SD620
Memory type
Memory type
• Indicates the type of built-in memory.
S (Initial)
QS
SD623
Drive 4
(ROM)
capacity
Drive 4 capacity
• Drive 4 capacity is stored in 1 kbyte units.
S (Initial)
b15
b2 b1 b0
00 : SAFETY MODE
01 : TEST MODE
10 : SAFETY MODE
(Wait-for-restart)
to
Empty
b4 b3
b0
0
0
b8 b7
b15
to
to
to
Drive 4
(Standrd ROM)
Fixed at
"3 (FLASH ROM)"