Mitsubishi Electric FX3U-232-BD User Manual page 254

FX Series PLC User's Manual - Data Communication Edition
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2. Word devices
Device
FX
1S
TN000 to
Timer
current
value
(T)
CN000
to
CN031
CN235
Counter
to
CN255
current
value
(C)
D0000 to
Data
register
(D)
File
—
register
(D)
RAM
file
register
(D)
Exten-
sion
register
(R)
Special D8000 to
data
register
(D)
*1. The WT and QT commands do not support 32-bit counters (C200 to C255).
Caution
1) When using bit devices in a command requiring specification in 1-word units, make sure that the head
device number is a multiple of "8".
2) Special auxiliary relays and special data registers are classified into ones for read only, write only and
ones for system only.
If data is written to any range in which writing is not allowed, an error may occur in the PLC.
For details on special auxiliary relays and special data registers, refer to the manual of the PLC.
3) In FX , FX
1S
access the program area (in the built-in RAM, memory cassette and built-in EEPROM) when users set file
registers (D).
In FX and FX
3U
mounted memory cassette.
In FX , FX
3G
D-12
Device number range (character)
FX (FX), FX
2
FX
0N
FX FX
2C 1NC
TN000 to TN255
TN063
—
CN000
to
CN031
CN000 to CN255
CN235
to
CN254
—
D0000
to
D0255
D0999
—
D1000 D1000
to to
D2499 D2999
D6000
— to
D7999
—
—
D8000 to D8255
D8255
—
, FX , FX , FX
1N 1NC 2N 2NC
PLCs, extension registers (R) cannot access extension file registers (ER) in a
3UC
PLCs, extension registers (R) cannot access extension file registers (ER).
3GC
, FX ,
1N 2N
FX
3S
FX
2NC
TN000
to
TN137
TN00000 TN00000
to
TN00137 TN00319
CN000
to
CN031
CN200
to
CN255
CN00000
to
CN00031
CN00200
to
CN00255
D0000
D0000 to
to
D7999
D2999
D000000
to
D002999
—
—
—
—
R000000
R023999
D8000 to D8511
D008000 to D008511
, FX , FX , FX , FX
3S 3G 3GC
Device
number
expression
FX FX ,
3G, 3U
Decimal/
FX FX
3GC 3UC
Octal
TN000 TN000
to to
TN319 TN511
TN00000
to to
TN00511
CN000 to CN255
CN00000 to
CN00255
D0000 to D7999
Decimal
D000000 to
D007999
R0000 to R9999
R000000
to to
R032767
and FX PLCs, the PLCs cannot
3U 3UC
2 Specifications
2.2 Link Specifications
Available
commands
BR, WR, QR,
BW, WW, QW,
BT WT QT
—

—

*1
—

*1
—

—

—
—

—

— —
—

— —
—

—

—

—
