Справочник Пользователя для Mitsubishi Electronics FX3S-MT/DSS
11 Use of Built-in Analog
103
FX
3S
Series Programmable Controllers
User's Manual - Hardware Edition
11
Bui
lt-
lt-
in Anal
og
12
O
utpu
t Wi
ring
t Wi
ring
13
Wiri
ng for
ng for
Va
rious U
ses
14
Te
st R
un,
un,
M
ain
tenanc
e,
Troub
le
le
shooting
15
Oth
er Ex
tensi
er Ex
tensi
on
U
nit
s and
Opti
ons
ons
16
Displ
ay
Modul
e
(FX
3S
-5
D
M
)
17
Me
m
m
ory
C
ass
ette
A
Spec
ial D
ial D
evices
(M
8000-,
D8000-)
B
Instruc
tion Li
st
C
Di
sc
onti
nued
nued
model
s
11.3 Built-in analog input function
11.3.5 Terminal layout
Terminal layout is arranged as follows:
11.3.6 Analog input line
*1.
Use the 2-core shielded twisted pair cable for the analog input lines, and separate the analog input
lines from other power lines or inductive lines.
lines from other power lines or inductive lines.
*2.
Make sure to short-circuit the "V+" and "V-" terminals when ch is not used.
11.3.7 Special data register
The following is a list of associated special devices.
1. Input data
The data converted by the PLC will be stored in special data registers.
The converted A/D immediate data or averaged data (data average conforming to the specified averaging
time) will be stored in the above data registers as the input data.
The special data registers that store the input data are shown in the following table:
The converted A/D immediate data or averaged data (data average conforming to the specified averaging
time) will be stored in the above data registers as the input data.
The special data registers that store the input data are shown in the following table:
Caution regarding input data
Input data is for reading only.
Do not change (rewrite) the input data using sequence program, indicator, or device monitor of the
programming tool.
Do not change (rewrite) the input data using sequence program, indicator, or device monitor of the
programming tool.
Special data register
Description
Attribute
D8270
Channel-1 input data
R
D8271
Channel-2 input data
R
D8272
Unused (Do not use.)
-
D8273
-
D8274
Averaging time for channel-1 (Setting range: 1 to 4095)
R/W
D8275
Averaging time for channel-2 (Setting range: 1 to 4095)
R/W
D8276
Unused (Do not use.)
-
D8277
-
D8278
Error status
R
D8279
Model code
R
Special data register
Description
D8270
Channel-1 input data
D8271
Channel-2 input data
V1+
V2+
V2+
V-
• • • channel 1 analog input
• • • channel 2 analog input
• • • COM terminal
• • • channel 2 analog input
• • • COM terminal
V
□
+, I
□
+, ch
□
:
□
represents the channel number.
Class-D grounding
*1
*2
ch
□
33 kΩ
82.7 kΩ
V
□
+
V-