Enhanced Real-Time Ethernet Controller

Transcription

1 Isochronous Enhanced Real-Time Ethernet Controller

2 Ethernet for isochronous, real-time communication In recent years the trend in industrial automation has seen high performance networking of distributed drives and motion controllers becoming much more common. Technologies from the IT world are being increasingly used in industrial automation applications, one such technology is Ethernet. Some complex industrial automation tasks require hard real-time. However, conventional fast Ethernet switches are not capable of delivering data fast enough for motion control applications. Combine isochronous real-time and IT data without compromise Renesas Electronics new ERTEC devices give the opportunity to have one Ethernet switch to handle all the Ethernet traffic both conventional and real-time. In order to cover the requirements of automation to their full extent, the PROFINET standard specifies real-time features at two levels, Real-time (RT) and Isochronous Real-time (IRT). Using standard Ethernet switches RT performance can be obtained but to get reaction times well below 1 millisecond IRT must be running and this is where the ERTEC devices come into their own. ERTEC Enhanced Real-Time Ethernet Controller To be able to take advantage of PROFINET with IRT running Renesas offer two new devices, called the ERTEC 200, which is a 2 port switch with integrated PHY, and the ERTEC 400, a 4 port switch with Reduced Media Independent Interface (RMII) and PCI interfaces. These devices can far outperform standard Ethernet switches and guarantee data throughput for hard real-time critical motion control devices and still leave 50% of the bandwidth for IT communication. The performance matrix for the ERTEC real-time switches allows for up to 150 control nodes at a cycle time of 1 millisec, with 6 MB/sec of simultaneously transferable TCP/IP data. Based on the IEEE transmission standard, the ERTEC hardware is designed to work with the PROFINET Real-time protocol. The ERTEC hardware also supports the time stamping like in IEEE

3 Scalable PROFINET communication PROFINET communication is scalable in three levels. Component based communication uses TCP/IP and enables cycle times in the order of 100 ms. It is preferred for communication between controllers. Real-time (RT) communication enables cycle times in the order of 10 ms and is well suited for use with distributed I/O. Isochronous realtime (IRT) communication enables cycle times less than 1 ms and is thus well suited for use in motion control applications. Open TCP/IP Channel Device parameterization Reading of diagnostics data Loading of interconnections Negotiation of the communications channel for user data Open TCP/IP Channel + Real-time channel RT High performance transmission Cyclic data Event controlled signals Open TCP/IP Channel + Real-time channel RT + Isochronous real-time channel IRT High performance transfer Data in isochronous mode Jitter < 1 µsec Key features of PROFINET Protect previous investments-integrated proxy technology allows seamless integration of existing fieldbus systems, and not just PROFIBUS systems. Can simultaneously handle standard Ethernet transmissions AND real-time transmissions at one millisecond speeds Hot swapping is possible so a single piece of machinery can be connected or replaced without affecting the whole system Works with any Ethernet TCP/IP network PROFINET with IRT running with a cycle time of one millisecond can control up to 150 nodes and still provide 50% bandwidth for IT communication Higher functional scope and performance than conventional fieldbus systems Utilise standard industrial Ethernet connectors and software Target applications Motion control Real-time control IRT communications Safety critical systems Network switch Network management RT communications IRT communications PLC Monitoring and control Safety critical systems Sensor and actuator interface Control panel Monitoring and control HMI interface 3

4 ERTEC 200 technical features Key highlights of ERTEC 200 ERTEC 400 technical features High-performance ARM946E-S RISC core 150 MHz max. clock frequency 4 Kbyte D-Cache, 8 Kbyte I-Cache 4 Kbyte D-TCM Integrated PLL Debugging capability via embedded ICE (JTAG) with real-time trace support Boot ROM 2-port switch 10/100 Mbit Ethernet support 64 Kbyte SRAM for telegram buffering Standard communication Real-time communication Isochronous real-time data transfer Integrated PHYs for copper and optical cables Asynchronous (32-bit) interface SDRAM interface for 128 Mbyte external memory Local bus master interface Serial port SPI interface with master/slave capability Up to 45 I/Os 304-pin BGA package Power supply: 3.3 V and 1.5 V Temperature range: 40 ºC to +85 C Differences between ERTEC 200 and ERTEC 400 Switching - Integrated switch for 10/100 Mbit Ethernet - SRAM on chip for message buffering PCI Interface ERTEC 200 ERTEC port 64 Kbytes No Integrated PHYs Yes No On board DMA controller Yes No Parametrizable I/Os port 192 Kbytes Typical power consumption 0.99 W 0.72 W Applications I/O devices and field devices Integrated PCI interface (V2.2) 32 bit wide, max. 66 MHz 5 V tolerant inputs PCI master/target capability Power management support I/O controllers and PC based communications processors Key benefits of ERTEC technology Cost savings due to switch integration in the device PCI interface (ERTEC 400 only) for optimal integration into PC-based environments Highest degree of intelligence in the smallest space Less external CPU power needed due to integrated ARM946E-S core Easy connection of devices to switched 10/100 Mbit Ethernet Open communication through compatibility to IEEE Support for redundant transmission features 4

5 ERTEC development tools Using the ERTEC development kits, PROFINET hardware and software applications can be developed and tested using either the ERTEC 200 or 400 Ethernet Controller. Developers can set up a network with PROFINET Industrial Ethernet support straight out of the box and at low overall cost and effort. The ERTEC development environment consists of a set of hardware and software components to considerably reduce development costs for producing a PROFINET IO device such as an IO controller. Included in each of the kits are executable example applications and simulation software to kick start developing a PROFINET solution. The IRT-capable PROFINET IO device stack, that is included in source code, saves manyears of development work. Only customer-specific application software needs to be added on top of the OS. ERTEC 200 Starter Kit ERTEC 200 and ERTEC 400 Development Kit This entry level system allows developers to begin investigating PROFINET. Included with the kit is an evaluation version of the PC based Softnet IO Controller software. This kit is ideal for an initial evaluation. For more in-depth development work Renesas supplies the ERTEC 200 and ERTEC 400 full development kits. Hardware included EB 200 evaluation board Evaluation board with ERTEC 200 as an evaluation environment for customized industrial applications. Hardware debug tool Low-cost, JTAG-based hardware debug tool for download and test of customer application. Software included ecos operating system Open source, royalty-free system. Fully functional version of Eclipse integrated development environment. Softnet PROFINET IO controller PROFINET emulation software for PCs. Allows PROFINET communication between EB 200 board and PC via standard Ethernet I/F. PROFINET IO device software example Sample program for PROFINET IO device based on the ERTEC 200. PROFINET IO device stack software The IRT-capable PROFINET IO device stack software is provided in source code. The EB 200 (400) development board is designed to be operated as a PROFINET IO device outside a PC; it helps you to try out various memory configurations and boot options and is extendable with external hardware. The kits are provided with the leading-edge open source RTOS ecos. Hardware included EB 200 (400) evaluation board Evaluation board with ERTEC 200 or ERTEC 400 as an evaluation environment for customized industrial applications. CP 1616 PC module for operation as IRT-capable PROFINET IO controller. Hardware debug tool Low-cost, JTAG-based hardware debug tool for download and test of customer application. ERTEC 200 (400) samples For developing customized hardware, 10 ERTEC 200 (400) components are already included in the package. Software included ecos operating system Open source, royalty-free system. Fully functional version of Eclipse integrated development environment for download. PROFINET IO device software example Sample program for PROFINET IO device based on the ERTEC 200 (400). PROFINET IO device stack software The IRT-capable PROFINET IO device stack software is provided in source code. 5

6 Isochronous Enhanced Real-Time Ethernet Controller Your direct contact: Before purchasing or using any Renesas Electronics products listed herein, please refer to the latest product manual and/or data sheet in advance Renesas Electronics Europe. All rights reserved. Printed in Germany. Document No. R19CP0001ED0300