Moderate errors always begin with 0xE2XX. The actual IO-Link error code is in the lowest byte, 
e.g. 0xE235 for Function not available. If IO-Link errors occur which are not described in this 
manual, please refer to the manual for the respective IO-Link device. Warnings are displayed in 
the Word area. 
Watchdog was tripped. 
 
Take measures to prevent interference - 
use shielded cables. Then perform a 
restart. 
Internal communication error 
 
See 0x0001 
Undervoltage 
 
Check the cyclic bit range to see which 
voltage is affected. 
Diagnostics 
 
Check the cyclic bit range to see which 
port or pin is affected. 
Station or network number changed 
while the system is running 
MAC initialization failed 
Incorrect parameter value in the SLMP 
telegram 
Incorrect Device Validation type