Mitsubishi Electronics MELSEC-F Manuel D’Utilisation
A-28
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
FX
3G
-2AD-BD
Specifications
FX
3G
-2AD-BD
Voltage input
Current input
Number of input points
2ch
Analog input range
0V to 10V DC
(Input resistance: 198.7 k
Ω)
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)
8
μA(16mA×1/2000)
Ov
er
al
l a
ccu
ra
cy Ambient temperature:
25±5
°C
±0.5%(±50mV) for 10V full scale
±0.5%(±80μA) for 16mA full scale
Ambient temperature:
0 to 55
0 to 55
°C
±1.0%(±100mV) for 10V full scale
±1.0%(±160μA) for 16mA full scale
Time required for A/D
conversion
conversion
180
μs (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.
• Channels are not insulated from each other.
Number of I/O points
occupied
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 20.32mA
2040
Analog input
Digital output
4mA