Comunication TCP/IP avec seimens S7-1200

Good morning all
I am a student at the University
I am working in a project that requires communication between arduino with ENC28J60 via ethernet, a switch and a seimens s7-1200 plc.
i programmed my arduino to send data to plc without problem i read the data in the plc everything is fine but i don't know how to do the reverse (send data from plc to arduino). if anyone can help me please that would be great

Post mis dans la mauvaise section, on parle anglais dans les forums généraux. déplacé vers le forum francophone.

Merci de prendre en compte les recommandations listées dans Les bonnes pratiques du Forum Francophone

Et alors, Bob, on a perdu sa langue ?

La demande initiale était en français.

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