TIDEP-0075 Reference Design

Texas Instruments

Industrial Communications Gateway PROFINET IRT to PROFIBUS Master Reference Design

Description

PROFINET is becoming the leading industrial Ethernet protocol in automation due to its high-speed: deterministic communications and enterprise connectivity. However: as the world’s most popular fieldbus: PROFIBUS’s importance and usage will continue for many years due to legacy investment protection. Recognizing the hybrid attribute in process plants: this reference design is integral for the migration of existing fieldbus technology into a real-time Ethernet network based on the Programmable Real-Time Unit and Industrial Communication SubSystems (PRU-ICSS) of Sitara™ AM57x processor. This design demonstrates PROFIBUS master and PROFINET IRT device on AM572x with protocol stacks simultaneously running on an ARM Cortex-A15 core while the entire PROFINET switch and PROFIBUS frame handler are executed on the two PRU-ICSS: respectively. The migration scheme is generally also suitable for other fieldbus and industrial protocols.

Features
  • PROFIBUS: Cyclic PROFIBUS-DP (DPV0) and enhancements to DP (DPV1) for acyclic services supports transmission speeds of 9.6 Kbaud to 12 MbaudPROFINET IRT: conformance classes A: B and C functionality with a minimum cycle time of 250 usPROFIBUS master and PROFINET IRT device simultaneously supportedSimplified protocol translation between PROFIBUS master and PROFINET IRTLeverages PRU-ICSS-INDUSTRIAL-SW for Sitara processors built on top of Processor-SDK-RTOSTested on the TMDXIDK5728 board and includes documentation: software: demo application and hardware design files
Applications
Product Categories
  • Digital signal processors (DSPs)