Manual

24
15.6 2-ch analog-input module
The detail of the external power supply is: the rated supply voltage is 24 VDC, the rated
input voltage ranges from DC20.4 to 28.8 V The consumption current is 35 mA
*1
or
40 mA
*2
(24VDC) when the input is not-open, output 100%. You can select either voltage or
current for each input channel.
EXM-AMI2HT
Characteristics of Analog Voltage Inputs Voltage Input Current Input
Input Range From DC0 to 10 V From DC4 to 20 mA
Input Impedance 1 M min. 10 
Input Points 2 points
A-D
Conversion
Sample Repetition Time 20 ms max.
Total Input System Transfer
Time*
3
105 ms + 1 scan time*
1
60 ms +1 scan time*
2
Input Type Single-ended input Differential input
Operating Mode Self-scan
Conversion Mode  type ADC
Input Error Maximum Error at 25°C
(77°F)
±0.2% of full scale
Temperature Coefficient ±0.006% of full scale/°C
Repeatable after
Stabilization Time
±0.5% of full scale
Nonlinear ±0.2% of full scale
Maximum error ±1% of full scale
Data Digital Resolution 4096 increments (12 bits)
Input Value of LSB 2.5 mV 4 µA
Data Type in Application
Program
0 to 4095 (12 bit data)
-32768 to 32767 (optional range designation)*
4
Monotonicity Yes
Input Data Out of Range Detectable*
5
*
6
Noise
Resistance
Maximum Temporary
Deviation during Electrical
Noise Tests
±3% maximum
*1
or ±1% maximum
*2
when a
1 kV clamp voltage is applied to the I/O wiring
and 1 kV is applied to the power directly.
Common Mode
Characteristics
Common mode reject ratio (CMRR): -50 dB
Common Mode Voltage 16 VDC
Input Filter No
Cable
Twisted-pair shielded cable is recommended
for improved noise immunity
Crosstalk 2 LSB max.
Voltage Endurance 500 V between input and power circuit
Isolation Method
Photocoupler Isolation between input and
internal circuit