Chapter  7  High-speed  Counter  Module  AH02HC/AH04HC 
7-7 
7.2.7  Profile of AH04HC-5A 
04HC
CN1
ERROR
RUN
1
2
3
4
7
6
8
9
10
5
 
 
Number  Name  Description 
1  Model name  Model name of the module 
2 
RUN LED indicator 
(green) 
Operating status of the module 
ON: The module is running. 
OFF: The module stops running. 
3 
ERROR LED 
indicator (red) 
Error status of the module 
Blink: The module is abnormal. 
4  USB port  Providing the mini USB communication interface 
5  Connector  Connecting the module and an I/O extension cable 
6  Extension port  Updating the firmware 
7  Label  Nameplate 
8  Set screw  Fixing the module 
9  Connector  Connecting the module and a backplane 
10  Projection  Fixing the module 
 
7.2.8  Arrangement of Input/Output Terminals 
 AH02HC-5A 
 
Terminal 
Function 
Terminal 
Function 
Count  Count 
X0.8+  CntA0+  X0.0+  Rst0+ 
X0.8-  CntA0-  X0.0-  Rst0- 
X0.9+  CntB0+  X0.1+  Rst1+ 
X0.9-  CntB0-  X0.1-  Rst1- 
X0.10+  CntA1+  Y0.8  Out0 
X0.10-  CntA1-  C0  COM0 
X0.11+  CntB1+  Y0.9  Out1 
X0.11-  CntB1-  C1  COM1