The same functions can be achieved as with CC-C. For Conformance Class D (CC-D), Profinet is used via Time-Sensitive Networking (TSN).Conformance Class C devices additionally communicate via Profinet IRT. With Conformance Class C (CC-C), positioning systems can be implemented with additional bandwidth reservation and application synchronization.For a device to adhere to Conformance Class B, it must communicate successfully via Profinet, have two ports (integrated switch), and support SNMP. Process automation requires increased availability, which can be achieved through media and system redundancy. Shielded cables increase robustness and switches with management functions facilitate network diagnostics and allow the network topology to be captured as desired for controlling a production line or machine. Conformance Class B (CC-B) stipulates that the network infrastructure also includes certified products and is structured according to the guidelines of Profinet.motorway or railway tunnels) or in building automation. Typical applications can be found in infrastructure (e.g. This is why structured cabling or a wireless local area network for mobile subscribers can also be used. A manufacturer certificate is sufficient for the network infrastructure. In Conformance Class A (CC-A), only the devices are certified.Field devices in a subordinate Profibus line can be integrated in the Profinet system seamlessly via an IO-Proxy (representative of a subordinate bus system).Īpplications with Profinet can be divided according to the international standard IEC 61784-2 into four conformance classes: The Profinet protocol is designed for the fast data exchange between Ethernet-based field devices and follows the provider-consumer model.
IO-Controllers are typically a PLC, DCS, or IPC whereas IO-Devices can be varied: I/O blocks, drives, sensors, or actuators. Profinet defines the entire data exchange between controllers (called "IO-Controllers") and the devices (called "IO-Devices"), as well as parameter setting and diagnosis. Its basis is a cascading real-time concept. It defines the communication with field connected peripheral devices. Profinet implements the interfacing to peripherals. 4.3.1 Management of the Application Relations (AR)įunctionalities Overview.
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