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4 Comparison of Performance Specifications
4.1 Analog Input
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
Common Items
4.1 Analog Input
4.1.8 FX3G-2AD-BD
Specifications
FX3G-2AD-BD
Voltage input Current input
Number of input points 2ch
Analog input range
0V to 10V DC
(Input resistance: 198.7 kΩ)
4mA to 20mA DC
(Input resistance: 250 Ω)
Absolute maximum input -0.5V. +15V -2mA, +30mA
Offset
Impossible to change Impossible to change
Gain
Digital output 12 bits, binary 11 bits, binary
Resolution
2.5mV(10V×1/4000) 8μA(16mA×1/2000)
Overall accuracy
Ambient temperature:
25±5°C
±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
Time required for A/D
conversion
180μs (Data updated every scan time.)
Input characteristics
Insulation method
• The analog input area is not insulated from the PLC.
• Channels are not insulated from each other.
Number of I/O points
occupied
0 point (This number is not related to the maximum I/O points of the PLC.)
0
4000
10V
10.2V
4080
Analog input
Digital output
0
2000
20mA
20.32m
A
2040
Analog input
Digital output
4mA