Balluff Network Interface ProfiNet™ 
www.balluff.com         
Status of input or output pin is 0 
Status of input or output pin is 1 
Short circuit at sensor supply between pin 1 and pin 3 
Short circuit at output at pin 2 / 4 against pin 3 
No high signal at diagnostic input 
IO-Link – connection active 
No IO-Link – connection or wrong IO-Link device 
IO-Link pre-operate during data management 
Validation failed / wrong configuration of IO-Link data length 
Data management failed / wrong device for data management 
IO-Link short circuit, pin 4 against pin 3