AS Series Module Manual 
3- 4  
*1: If the input signal exceeds the hardware input limit, the module only shows the maximum value. If the 
input signal is below the lower limit, it only shows the minimum value.   
*2: If the input signal exceeds the hardware input limit, it also exceeds the digital conversion limit and a 
conversion limit error appears. For example in the voltage input mode (-10 V to +10 V), when the input 
signal is 10.15 V, exceeding the hardware upper limit, it also exceeds the conversion upper limit. The 
module uses the upper limit value (32387) as the input signal and a conversion limit error appears.         
*3: If an input signal exceeds the absolute range, it might damage the channel.   
 
Analog-to-Digital 
Conversion 
Current Input 
Rated Input Range  ±20 mA  0 mA–20 mA  4 mA–20 mA 
Rated Conversion 
Range 
K-32000   
~ 
K+2000 
K0 
~ 
K32000 
K0 
~ 
K32000 
Hardware Input 
Limit*
1
 
-20.24 mA ~ 20.24 mA  -0.24 mA ~ 20.24 mA  3.81 mA ~ 20.19 mA 
Conversion Limit*
2
 
~   
K32384 
~ 
K32384 
~ 
K32384 
Error Rate  Room Temperature: ±0.2% ; Full Temperature Range: ±0.5% 
Hardware R
16 bits 
Input Impedance  250Ω 
Absolute Input 
Range*
3
 
±32 mA 
*1: If the input signal exceeds the hardware input limit, the module only shows the maximum value. If the 
input signal is below the lower limit, it only shows the minimum value.   
*2: If the input signal exceeds the hardware input limit, it also exceeds the digital conversion limit and a 
conversion limit error appears. For example in the voltage input mode (4 mA to 20 mA), when the input 
signal is 0 mA, exceeding the hardware upper limit, it also exceeds the conversion upper limit. The 
module uses the upper limit value (-384) as the input signal and a conversion limit error appears.         
*3: If an input signal exceeds the absolute range, it might damage the channel.