I want my Scalance switch to send SNMP Traps to my S7-1511 1 PN, wich it does on udp port 162. I am trying to use TCON to establish a connection and TURCV to listen on the port. This works on a lot of ports just not the one I need, port 162. I have found in the help function in TIA Portal that the port can be used conditionally** 

**These ports are disabled depending on the function of the CPU in use. The documentation of the respective CPUs provides assignment of these ports.

How can I find this documentation, or how can I enable this port? 

Hello,

look carefuly here:

https://support.industry.siemens.com/cs/document/109747342/simatic-net-industrial-ethernet-security-security-basics-and-application?dti=0&lc=en-WW