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A-35
4 Comparison of Performance Specifications
4.3 Mixed Analog Input/Output
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
Common Items
A
Common Items
B
FX
3U
-4AD
FX
3UC
-4AD
C
FX
3U
-4AD-ADP
D
FX
3G
-2AD-BD
E
FX
3U
-4DA
F
FX
3U
-4DA-ADP
G
FX
3G
-1DA-BD
H
FX
3U
-3A-ADP
I
FX
3U
-4AD-PT
-ADP
J
FX
3U
-4AD-PTW
-ADP
4.3 Mixed Analog Input/Output
4.3.1 FX3U-3A-ADP
Specifications
FX3U-3A-ADP
Voltage input Current input Voltage output Current output
Number of input/
output points
2ch 1ch
Analog input/
output range
0V to 10V DC
(Input resistance:198.7k
Ω
)
4mA to 20mA DC
(Input resistance:250Ω)
0V to 10V DC
(External load:5k to 1MΩ)
4mA to 20mA DC
(External load:
500Ω or less)
Absolute
maximum input
-0.5V,
+15V
-2mA,
+30mA
--
Digital input/
output
12 bits, binary
Resolution 2.5mV(10V×1/4000) 5μA(16mA×1/3200) 2.5mV(10V×1/4000) 4μA(16mA×1/4000)
Overall accuracy
Ambient
temperature:
25±5°C
±0.5%(±50mV)
for 10V full scale
±0.5%(±80μA)
for 16mA full scale
±0.5%(±50mV)
for 10V full scale
±0.5%(±80μA)
for 16mA full scale
Ambient
temperature:
0 to 55°C
±1.0%(±100mV)
for 10V full scale
±1.0%(±160μA)
for 16mA full scale
±1.0%(±100mV)
for 10V full scale
±1.0%(±160μA)
for 16mA full scale
Reference - -
If the external load
resistance (Rs) is less
than 5kΩ, the accuracy
increases as shown in the
following formula:
(Increase: 100 mV per
1%)
-
Time required
for conversion
•FX
3U/FX3UC Series PLC :
80μs for each selected input channel + 40μs for each selected output channel
(Operation synchronized with sequence program)
•FX
3G Series PLC :
90μs for each selected input channel + 50μs for each selected output channel
(Operation synchronized with sequence program)
I/O
characteristics
Insulation
method
• The photocoupler is used to insulate the analog input and output area from the PLC.
• The DC/DC converter is used to insulate the power supply from the analog input and output.
• Channels are not insulated from each other.
Number of I/O
points occupied
0 points
(This number of points is not related to the maximum number of input/output points of the PLC.)
47×100
Rs+47
-0.9(%)
0
4000
10V
4080
Analog input
Digital output
10.2V
0
3200
20mA
3280
Analog input
Digital output
4mA
20.4mA
0
10V
4000
Digital input
Analog output
4080
0
20mA
4000
Digital input
Analog output
4mA
4080