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Is S7 comm a profinet protocol ? I ask this question because someone told me do not use "Snap7 protocol" to communicate between PLC(1500) and PC, use PROFINET instead. But I heard that Profinet is the standard protocol for S1200 and S1500 PLC and I succeed to change data between PLC and PC by using python-snap7, if snap7 isn't Profinet protocol witch protocol it is then ? S7 comm ? Yes, but where it goes Profinet ??? I'm so confused... I have a this link talks about it but I can't understand : https://www.promotic.eu/en/pmdoc/Subsystems/Comm/PLC/Simatic/Simatic.htm extra question : Is it possible to do a RT Profinet communication between PLC-PC ? With python-snap7 ? |
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Hi @luewh
No, s7comm and Profinet are two independent protocols.
Yes. You'll most likely need additional software such as a Profinet driver, configuration tool etc.
No. Python-snap7 supports only s7comm protocol. |
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Hi @luewh
No, s7comm and Profinet are two independent protocols.
Both protocols can be used over Ethernet(via a Profinet(LAN) interface on your PLC).
Yes. You'll most likely need additional software such as a Profinet driver, configuration tool etc.
But I have never tried it myself, so I cannot be certain.
No. Python-snap7 supports only s7comm protocol.