AH500 Hardware and Operation Manual 
1-2 
1.1  Introduction 
This manual introduces the AH500 Series PLC CPU functions, devices, module tables, basic instructions, 
applied instructions, electrical specifications troubleshooting, as well as appearances, dimensions, and so 
forth.   
1.1.1 Related Manuals 
The related manuals of the AH500 series programmable logic controllers are composed of the following 
  AH500 Quick Start 
This guides users to use the system before they read the related manuals. 
  AH500 Programming Manual 
This introduces the programming of the AH500 series programmable logic controllers, the basic 
instructions, and the applied instructions. 
  ISPSoft User Manual 
This introduces the use of ISPSoft, the programming language (Ladder, IL, SFC, FBD, and ST), the 
concept of POUs, and the concept of tasks. 
  AH500 Hrdwaew and Operation Manual 
This introduces electrical specifications, appearances, dimensions, CPU functions, devices, module 
tables, troubleshooting, and so forth. 
  AH500 Module Manual 
This introduces the use of special I/O modules. For example, network modules, analog I/O modules, 
temperature measurement modules, motion control modules, and etc. 
  AH500 Motion Control Module Manual 
This introduces the specifications for the motion control modules, the wiring, the instructions, and the 
functions. 
  PMSoft User Manual 
This introduces the use of PMSoft, including the editing mode, the connection, and the password setting. 
  AH500 Redundancy System Operation Manual 
This introduces the AH500 redundancy structures, establishments, programming designs, and 
operations.   
 
1.1.2  Description of Models 
Power supply 
module 
AHPS05-5A 
100~240 V AC   
CPU module 
AHCPU500-RS2 
It is a basic CPU module with two built-in RS-485 ports, one 
built-in USB port, and one built-in SD interface. It supports 768 
inputs/outputs. The program capacity is 32K steps. 
AHCPU500-EN 
It is a basic CPU module with one built-in Ethernet port, one 
built-in RS-485 port, one built-in USB port, and one built-in SD 
interface. It supports 768 inputs/outputs. The program capacity 
AHCPU501-RS2 
It is an advanced CPU module with two built-in RS-485 ports, 
one built-in USB port, and one built-in SD interface. It supports 
768 inputs/outputs. The program capacity is 48K steps. 
AHCPU501-EN 
It is an advanced CPU module with one built-in Ethernet port, 
one built-in RS-485 port, one built-in USB port, and one built-in 
SD interface. It supports 768 inputs/outputs. The program 
AHCPU510-RS2 
It is a basic CPU module with two built-in RS-485 ports, one 
built-in USB port, and one built-in SD interface. It supports 1280