AS Series Module Manual 
13-42 
13.6
 
Module Status Codes 
The following error codes identify possible errors when the AS04SIL module as a communication module is installed on 
the right side of the CPU module or RTU module. 
Error 
Description  Solution 
Install a new AS04SIL or contact the factory. 
16#1606 
24VDC power supply is not sufficient 
and then recovered from low-voltage 
Check whether the 24 V power supply to the module is 
normal. 
 
Error 
Description  Solution 
Error occurs in IO-Link Master 
See section 13.5 for more information. 
Error occurs in IO-Link device 
See section 13.5 for more information. 
16#1802  No external power supply 
Check the external power supply 
16#1803 
Error in the download of IO-Link 
device mapping tables 
Redownload the configuration by the software 
16#1804 
Failure to switch the process data 
Check if the connected device is the same as that configured in 
16#1805 
Error occurs in the communication 
port 1 of IO-Link connection   
1.  Cut the external power off for 3 seconds and power-on 
again 
2.  Download the configurations again 
 
16#1806 
Error occurs in the communication 
port 2 of IO-Link connection 
16#1807 
Error occurs in the communication 
port 3 of IO-Link connection 
16#1808 
Error occurs in the communication 
port 4 of IO-Link connection 
16#1809 
Error occurs in scan device and 
force to stop scanning   
1.  Cut the external power off for 3 seconds and power-on 
again 
2.  Scan all devices again