AS Series Module Manual 
13-12 
13.3.1.9  Detection of Short-Circuits in I/O Cables 
This function detects short-circuits in I/O cables. The status code for communication ports will show 
16#8CA4 if an error occurs. 
 
13.3.1.10  Event Log 
The IO-Link event codes listed in section 13.5 are refreshed in the mapped devices for ports in the Normal Exchange 
Area section as below. 
 
 
The device status for  each port should be set to 3 bytes in length. See the following table of above device addresses 
corresponding to ports in order. 
D29022_H, D29022_L, D29023_H 
D29023_L, D29024_H, D29024_L 
Port 3  D29025_H, D29025_L, D29026_H 
Port 4  D29026_L, D29027_H, D29027_L 
 
Device status consists of Event qualifier and Event Code as follows. 
For event codes, see section 13.5. 
Byte 0  Byte 1  Byte 2 
 
The data frame of Event Qualifier: 
MODE  TYPE  SOURCE  INSTANCE 
Bit 7  Bit 6  Bit 5  Bit 4  Bit 3  Bit 2  Bit 1  Bit 0 
 
Bit 0~ Bit 2: INSTANCE