Mounting and wiring
EK9300
25
Version: 3.2.6
3.2.2.3
EK9300 PROFINET topology sample
EK9300
The construction of the EK9300 can take place in a line, with adherence to the following points:
- Maximum 20 couplers one behind the other
- No switches should be used in the line
Fig. 18: EK9300 - Topology sample
Use of switches without LLDP
PROFINET uses the LLDP protocol for the topology recognition. The topology recognition and the
associated PROFINET services will not work properly if the switch that you use does not support
this. In addition, this results in increased network traffic, which is multiplied further with each switch
port and connected PROFINET device. The effects of this can be communication errors extending
up to the aborting of communication with individual PROFINET devices.
