User Documentation
User Manual Managed Switches 
153 
4.2.13 PROFINET I/O Parameters 
Weidmüller defines comprehensive PROFINET I/O parameters for more flexible settings and 
monitoring. There attributes are readable or writable. PROFINET I/O parameters use PROFINET 
acyclic data to achieve communication in the network. You can use the SIMATIC STEP 7 tool or 
engineering deployment software to edit it. There are 3 categories of parameters, including Device 
Parameters, Device Status and Port Parameters. The following tables provide parameter 
information: 
rw:   Read and Write 
ro:  Read Only 
Device parameters   
These parameters control PROFINET Alarm functions. PROFINET Alarm is a message which sends 
from switch to PLC immediately once the event is triggered. 
Byte 
Name 
Access 
Value 
Description 
Default 
Value 
0 
Status Alarm 
rw 
0 
Do not send any alarms 
0: No alarms 
1 
Send alarm if any status 
change 
1 
Power Alarm 1 
rw 
0 
Do not send power failed 
alarms 
0: No alarms 
1 
Send alarm if power supply 1 
fails 
2 
Power Alarm 2 
rw 
0 
Do not send power failed 
alarms 
0: No alarms 
1 
Send alarm if power supply 2 
fails 
Device Status 
Byte 
Name 
Access 
Value 
Description 
0 
Device Status 
ro 
0 
Unavailable 
1 
OK 
2 
Device bootup fails 
1 
Fault Status 
ro 
0 
Unavailable 
1 
OK 
2 
Device detect fault 
2 
Power 1 Status 
ro 
0 
Unavailable 
1 
OK 
2 
Power 1 fails 
3 
Power 2 Status 
ro 
0 
Unavailable 
1 
OK 
2 
Power 2 fails 










