AH500 Hardware and Operation Manual 
5-20 
5.4.5  Start Addresses for Network Modules 
Users can assign input registers and output registers to a network module through HWCONFIG in ISPSoft. 
The input registers should be in the range of D0 to D65535, and the output registers should be in the range of 
D0 to D65535. Take AH10EN-5A for instance. The original input registers are D0~D19. Users can change the 
input device range from D0~D19 to D150~D169. 
  Default input device range: D0~D19 
 
 
  User-defined input device range: D150~D169