Hi,

I don´t know your PLC but normally parallel protocols/services are possible over the same port / interface of PLC.

Regards,

Towome

Hello,

lilouf

hello, i'm trying to make two different protocols on the same PLC, one profinet, no problem, and one modbus, but i can't figure out if it's possible or not.

some HW can have some specific requirements due protocols but generally it is possible. Really, if you want ask this questions it is also expecetd to describe your expected HW and components for that situation. It is maybe important to check connection resources available, it is required to know if you have free of them to specific type of connection, this is general rule.

Hello lilouf;

Towone is quite correct, parallel protocols on TCP/IP can be implemented on S7 PLCs, either on yhe Profinet integrated port of the CPU or using Ethernet CPs.

Look at this document, showing how to implement Modbus TCP exchanges between S7 CPUs over the integrated Profinet port. Profinet exchanges are not inhibited by the use of Modbus TCP functions  uiu can still use them in parallel.

https://support.industry.siemens.com/cs/ca/en/view/102020340

Hope this helps,

Daniel Chartier