4 AUXILIARY AND APPLIED FUNCTIONS
Classification
Device
Special relay
Internal system
device
Special register
Input
Output
Internal relay
Latch relay
Annunciator
Edge relay
Link relay
Data register
Link register
Contact
Coil
Timer
Current
value
Internal user
Contact
device
Retentive
Coil
timer
Current
value
Contact
Coil
Counter
Current
value
Link special relay
Link special register
Step relay
Direct input
Direct Output
Index register
Index register
File register
File register
Extended data
Extended data register
register
Extended link
Extended link register
register
(3) Available devices
The devices available in commands used in the MC protocol communication
function is shown below.
(a) PLC CPU
Device code
ASCII code
Binary code
(Note-1)
SM
91h
SD
A9h
X
9Ch
Y
9Dh
M
90h
L
92h
F
93h
V
94h
B
A0h
D
A8h
W
B4h
TS
C1h
TC
C0h
TN
C2h
SS
C7h
SC
C6h
SN
C8h
CS
C4h
CC
C3h
CN
C5h
SB
A1h
SW
B5h
S
98h
DX
A2h
DY
A3h
Z
CCh
R
AFh
ZR
B0h
D
A8h
W
B4h
(Note-1): When data is communicated in ASCII code, the second character "
Device number range (Default)
000000 to 002047
000000 to 002047
000000 to 001FFF
Hexadecimal
000000 to 001FFF
Hexadecimal
000000 to 008191
000000 to 008191
000000 to 002047
000000 to 002047
000000 to 001FFF
Hexadecimal
000000 to 012287
000000 to 001FFF
Hexadecimal
000000 to 002047
000000 to 002047
000000 to 001023
000000 to 0007FF
Hexadecimal
to 0007FF
Hexadecimal
000000
000000 to 008191
000000 to 000FFF
Hexadecimal
000000 to 000FFF
Hexadecimal
000000 to 000019
000000 to 032767
000000 to 3FD7FF
Hexadecimal
• Binary:
000000 to 4184063
(4086k points maximum)
• ASCII:
000000 to 999999
(976.6k points maximum)
000000 to 3FD7FF
Hexadecimal
(4086k points maximum)
4 - 75
Remarks
Decimal
Decimal
—
Decimal
Decimal
Decimal
Decimal
Decimal
Decimal
• When the device number range is
changed, access is possible up to
the largest device number after the
change.
• Local devices cannot be accessed.
Decimal
Decimal
Decimal
Devices of DX/DY1000 or later are not
available. Use X/Y devices to access
devices of DX/DY1000 or later.
Decimal
Decimal
—
If the number of points is set on the
PLC file tab of PLC parameter, access
is possible up to the largest device
number after the setting.
Decimal
However, in the ASCII code
communication, the number of points
described on the left is the access
limit.
If the number of points is set on the
PLC file tab of PLC parameter, access
is possible up to the largest device
number after the setting.
" can be designated a blank space (code: 20H).