The PROFINET standard defines three different performance levels which cover the various requirements from different applications.

PROFINET NRT (Non Real Time): It uses standard protocols as UDP/IP. With response time approx. 100 ms PROFINET NRT targets for applications in process automation.

PROFINET RT (Real Time): For applications with higher requirements on cycle time like factory automation, it directly uses the Ethernet protocol to exchange I/O data, while diagnosis and configuration uses standard UDP/IP. PROFINET RT enables applications with response time approx. 10 ms.

PROFINET IRT (Isochronous Real Time): The highest requirements come from the control of complex industrial drive systems, like packaging machines or robotics. With applications with cycle time < 1 ms and jitter < 1 μs are possible.

• Transfer protocol: PROFINET IO
• Supported Ethernet services: ICMP, IGMP, ARP, DHCP, TELNET, TFTP, SNMP, VLAN Priority Tagging
• Supported PROFINET services: RTC, RTA, CL-RPC, DCP, LLDP, I&M
• PROFINET Conformance Class B and RT Class 1
• Cyclic Time: 1ms (min)
• Generic GSDML File Provided
• Automatic MDI / MDI-X Crossover for Plug-and-play