Frei verwendbar © Siemens AG 2018
5/15/2019 Page 5
PROFINET in ISO/OSI 模型
7b
PROFINET IO Services
PROFINET IO Protocol
7a
Connectionless RPC
6
empty
5
4
UDP(RFC 768)
3
2
增加实时报文，遵从规范IEC 61158
IEEE802.3,Full-Duplex,IEEE802.1Q, Prio. Tagging
1
IEEE 802.3 100 Base TX , 100 Base FX
IP (RFC 791)
PROFINET IO Services
IEC 61158
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