User Documentation
User Manual Managed Switches 
136 
5. Select Enable option and click Activate to enable PROFINET I/O.   
The PROFINET type LLDP will be enabled automatically when PROFINET I/O is enabled. 
Select the Disable option and click Activate to disable PROFINET I/O. 
The switch will disable PROFINET type LLDP and will use then standard LLDP. 
PROFINET I/O functionality is implemented in firmware version 3.3.x and later. 
If you use a managed Switch with firmware version 2.x you can update the firmware to latest 
version 3.3.x. Your hardware already is capable to run the industrial protocols.   
By factory default the PROFINET I/O functionality is disabled (all Weidmüller managed 
Switches). 
4.2.3 Step 7 Integration 
Addressing of I/O Data in PROFINET I/O Based on Slot and Sub-Slots 
The concept of the Weidmüller 
PROFINET switch with GSD version 
2 is shown the table below. In this 
structure, each switch port represents 
one sub-slot.   
Manufacturer Information 
Each PROFINET device is addressed based on a MAC address. This address is unique worldwide. 
The company code (bits 47 to 24) can be obtained from the IEEE Standards Department free of 
charge. This part is called the OUI (organizationally unique identifier).   
Table of Weidmüller OUI 
0 0 1 5 7 E x x x x x x
Bit Value 47..24
Bit Value 23..0
Company Code (OUI)
Consecutive Number










