827
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
36 Operation of Special Devices (M8000 -, D8000 -)
36.1 Special Device List (M8000 -, D8000 -)
31
FN
C
275-FN
C
279
Da
ta
Tr
ans
fe
r 3
32
FN
C
280
-F
N
C
28
9
H
igh Speed
Pr
oces
si
ng 2
33
FN
C
290-FN
C
299
Ext
ensi
on Fi
le
R
egi
st
er
34
SF
C
•S
T
L
Pr
o
g
ra
m
m
in
g
35
In
te
rru
p
t
Funct
ion
36
Sp
e
cia
l De
vic
e
37
E
rro
r C
o
d
e
A
V
e
rs
ion U
p
In
fo
rm
a
tio
n
B
Ex
ec
ut
ion Ti
m
e
s
C
Appl
ic
ab
le
In
st
ru
ct
ion Li
st
RS2 (FNC 87) [ch1] (Refer to Data Communication Edition for details.)
D 8400
RS2 (FNC 87) [ch1] Communication format setting
3
3
–
–
–
–
–
–
[D]8401
Not used
–
–
–
–
–
–
–
–
[D]8402
*1
RS2 (FNC 87) [ch1] Remaining points of transmit
data
3
3
M8402
–
–
–
–
–
[D]8403
*1
RS2 (FNC 87) [ch1] Monitoring receive data points
3
3
M8403
–
–
–
–
–
[D]8404
Not used
–
–
–
–
–
–
–
–
[D]8405
Communication parameter display [ch1]
3
3
–
–
–
–
–
–
[D]8406
Not used
–
–
–
–
–
–
–
–
[D]8407
–
–
–
–
–
–
–
–
[D]8408
–
–
–
–
–
–
–
–
D 8409
RS2 (FNC 87) [ch1] Time-out time setting
3
3
–
–
–
–
–
–
D 8410
RS2 (FNC 87) [ch1] Header 1 and 2 <Default: STX>
3
3
–
–
–
–
–
–
D 8411
RS2 (FNC 87) [ch1] Header 3 and 4
3
3
–
–
–
–
–
–
D 8412
RS2 (FNC 87) [ch1] Terminator 1 and 2
<Default: ETX>
3
3
–
–
–
–
–
–
D 8413
RS2 (FNC 87) [ch1] Terminator 3 and 4
3
3
–
–
–
–
–
–
[D]8414
RS2 (FNC 87) [ch1] Receive sum (received data)
3
3
–
–
–
–
–
–
[D]8415
RS2 (FNC 87) [ch1] Receive sum (calculated result)
3
3
–
–
–
–
–
–
[D]8416
RS2 (FNC 87) [ch1] Send sum
3
3
–
–
–
–
–
–
[D]8417
Not used
–
–
–
–
–
–
–
–
[D]8418
–
–
–
–
–
–
–
–
[D]8419
Operation mode display [ch1]
3
3
–
–
–
–
–
–
RS2 (FNC 87) [ch2] and Computer Link [ch2] (Refer to Data Communication Edition for details.)
D 8420
RS2 (FNC 87) [ch2] Communication format setting
3
3
–
–
–
–
–
–
D 8421
Computer link [ch2] Station number setting
3
3
–
–
–
–
–
–
[D]8422
*1
RS2 (FNC 87) [ch2] Remaining points of transmit
data
3
3
M8422
–
–
–
–
–
[D]8423
*1
RS2 (FNC 87) [ch2] Monitoring receive data points
3
3
M8423
–
–
–
–
–
[D]8424
Not used
–
–
–
–
–
–
–
–
[D]8425
Communication parameter display [ch2]
3
3
–
–
–
–
–
–
[D]8426
Not used
–
–
–
–
–
–
–
–
D 8427
Computer link [ch2]
Specification of on-demand head device register
3
3
M8426 to
M8429
–
–
–
–
–
D 8428
Computer link [ch2]
Specification of on-demand data length register
3
3
–
–
–
–
–
D 8429
RS2 (FNC 87) [ch2], computer link [ch2]
Time-out time setting
3
3
–
–
–
–
–
D 8430
RS2 (FNC 87) [ch2] Header 1 and 2 <Default: STX>
3
3
–
–
–
–
–
–
D 8431
RS2 (FNC 87) [ch2] Header 3 and 4
3
3
–
–
–
–
–
–
D 8432
RS2 (FNC 87) [ch2] Terminator 1 and 2
<Default: ETX>
3
3
–
–
–
–
–
–
D 8433
RS2 (FNC 87) [ch2] Terminator 3 and 4
3
3
–
–
–
–
–
–
[D]8434
RS2 (FNC 87) [ch2] Receive sum (received data)
3
3
–
–
–
–
–
–
[D]8435
RS2 (FNC 87) [ch2] Receive sum (calculated result)
3
3
–
–
–
–
–
–
[D]8436
RS2 (FNC 87) [ch2] Send sum
3
3
–
–
–
–
–
–
[D]8437
Not used
–
–
–
–
–
–
–
–
*1.
Cleared when PLC switches from RUN to STOP.
Number and name
Content of register
Applicable model
FX
3U
FX
3UC
Correspond-
ing special
device
FX
1S
FX
1N
FX
2N
FX
1NC
FX
2NC