4CH analogue input: voltage and current input selectable; Voltage input range is 0~5V, 0~
10V selectable, current input range is 0~20mA, 4~20mA selectable;   
  2CH analogue output: voltage and current input selectable; Voltage input range is 0~5V, 
0~10V selectable, current input range is 0~20mA, 4~20mA selectable; 
  14 bits high precision analogue input;     
  As the special module, 7pcs XC-E4AD2DA can be connected to one XC series PLC main 
unit;     
  XC-E4AD2DA module four A/D channels have PID function.