ETHERNET November 2007 / POWERLINK Issue 2 The Magazine for the Standard in Industrial Ethernet Volume 2, Volume FACTS Central control? Decentral control? In control in any way. Just give it a try POWERLINK starter kits from IXXAT, port and SYS TEC Innovative and tailor- made Encoder solutions from POSITAL Intuitive approach Lenze's L-force Engineer features great usability POWERLINK application performance 2 PRODUCT NEWS 2/2007 POSITAL: Perfectly prepared for POWERLINK – innovative encoder solutions tailored to your needs ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ A highly specialized manufacturer these devices due to an innovative, of absolute rotary encoders and incli- patented technology based on a nometers, POSITAL GmbH provides Wiegand wire around which an electric customers and end users with en- coil is wound. This component draws coder solutions that can be integrated on energy from the turning motion to into almost any widely used bus measure turns. Neither continual system. Highlights among the product turns nor a minimal rotation speed line-up include the extremely com- are required for this feature. MCD pact, cost-efficient MAGNETOCODE encoders are available as hollow (MCD) multi-turn encoders, which shaft and solid shaft versions. They POSITAL's extremely operate without an external source of provide IP64 protection and are compact MCD rotary encoders current. These encoders determine only 36.5 mm wide. position values by means of an inte- grated Hall effect sensor that samples Other key product lines include the magnetic field of a permanent POSITAL's OPTOCODE optoelectronic magnet fixed to the shaft. This single- rotary encoders, which are also avail- All types are equipped with standard can be configured with TCP/IP control turn sensor system achieves 12 bit able with automatic protocol switching M12 plugs. Their rugged design en- commands or via the integrated web maximum resolution per turn, with up for POWERLINK. Their integrated sures reliable operation even under server, which enables direct graphical to 8,192 turns (13 bit), or more on POWERLINK interface automatically harsh environmental conditions. parameterization of the encoder. customer request, measured at the adjusts for the protocol in use: both Diagnostic LEDs signal the network Firmware updates can be easily per- same time. Even turns that occur while the older version and the current open status, i.e. Link, Collision, and Re- formed by FTP. Device replacements the system is without supply voltage variant of the protocol are supported. ceive, and indicate the POWERLINK do not require any configuration effort are registered reliably and are The encoders are especially suited to device status. A web server integrated since the encoder itself can easily be immediately available when the highly dynamic applications, such as into the device allows for setting its IP detached from its interface unit. encoder is powered up again. Any e.g. synchronized shafts, and to tasks address and thus assigning a network need for batteries is eliminated in with high bandwidth requirements. address to the encoder. In addition, it www.posital.de IXXAT: POWERLINK toolset for development and configuration ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ POWERLINK configuration tool output data, and defining network Device networks. The XML-based POWERLINK IXXAT's POWERLINK configuration tool variables for IEC 61131-compliant Description Editor Device Description Format defined “Configuration Studio” allows for devices. “Configuration Studio” IXXAT supplies an editor for Windows for this purpose allows for describing devising and generating configuration determines the necessary PDO 2000/XP which allows users to create device types in the form of XML data for POWERLINK and CANopen mappings based on the links defined. XML-based device description files Device Description files (XDD), and networks, and serves as a system All timing parameters for the MN and (XDD/XDC), and supports the genera- of individual devices in the form of planning aid for system integrators. the CNs are also derived from auto- tion of POWERLINK and CANopen XML Device Configuration files (XDC). The tool gives users a device catalog matic calculations. The tool generates device description files in XML as well IXXAT supplies an XML Device Descrip- to choose from to assemble the net- a Concise DCF file which is used by as in CANopen EDS/DCF format. All tion Parser to reduce the programming work components needed for an the Managing Node to load configura- required data are intuitively entered and development effort. The Parser application. It also supports presetting tion data onto devices on the network via templates. In addition, the tool provides a comfortable interface to parameter values, linking input and at system start-up. The configuration provides support for profile descrip- turn data contained in an XDD or XDC tool is available tion files which contain all object file over to an application, e.g. by as a stand-alone definitions of a selected device profile, giving users the means to enumerate, version, as a and enable a quick import of imple- read and write entire object dictionary software compo- mented objects into the device entries. Since an application can also nent that can be description file. Pending feature supply data back to the XML Device integrated into extensions in future versions also Description Parser module, XDD and an OEM tool, or include source code generation for XDC files can also be written or as a backend object dictionary entries. created. The parser module is avail- for use with a able for Windows 2000/XP. customized, XML Device Description OEM-specific File Parser interface to Users generally need electronic ensure a descriptions of the devices on a net- consistent look work to work with software tools e.g. and feel. for the configuration of POWERLINK www.ixxat.de ETHERNET POWERLINK EDITORIAL 3 The Magazine for the Standard FACTS in Industrial Ethernet POWERLINK's added value: ■■ Cover story it's not just speed that counts 4 Central control? Decentral control? In control in any way. The search for the »best« real-time fieldbus tends to be dominated by the one criterion of speed, a narrow focus ■■ Product news calling to mind children only just learning to play a super- car top trumps game: all cards are played for speed and 2 POSITAL: Perfectly prepared for POWERLINK – the highest value wins the trick, even though speed may innovative encoder solutions tailored to your needs not be so relevant in the actual application. What use is your desert racer's maximum velocity, if what you really 2 IXXAT: POWERLINK toolset for development and configuration need is a vehicle to haul great loads over uneven 6 B&R: Economical safety terrain? Or, to rephrase the solution for drives question: what good is a centrally installed control 6 IXXAT: POWERLINK cards for system featuring top per- PCI and cPCI systems ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– formance on paper, if your application much rather 7 Janz Automationssysteme: calls for a decentral control High performance PL interface concept? with software API POWERLINK gives you more than just high speed. Other Anton Meindl Business Manager, technical features can be Bernecker + Rainer key for users depending on Industrie Elektronik the specifics of their appli- Ges.m.b.H. cation. POWERLINK Safety 7 SYS TEC: POWERLINK stack and starter kit was approved by TÜV Rheinland for systems up to safety level SIL 3. A redundant POWERLINK-based fieldbus is a 7 port: POWERLINK development tools fail-safe solution featuring excellent reliability for process industry applications. For CANopen network operators, 8 infoteam: POWERLINK is the ideal extension. PowerMAP: simple POWERLINK and CANopen project planning Since POWERLINK keeps so close to the Ethernet stan- dard, its users are free to choose any network topology. 8 IXXAT: POWERLINK communication module and starter kit Hot-pluggability does away with time-consuming set-up and configuration when adding or replacing a module. Cross-traffic capability means that every device can send 8 Hirschmann Automation ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– and Control GmbH: its data in broadcast mode directly into the network of all POWERLINK router – nodes. POWERLINK is the only real-time system among all connection under control Ethernet-based fieldbuses on the market that features 100 % compliance with the Ethernet standard according 8 port: POWERLINK MAC to IEEE 802.3. and hub for FPGAs 40,000 machines give proof of that in operation. 9 Lenze: Engineering: We cordially invite you to visit our stand at the It's so simple Intuitive approach makes SPS/IPC/Drives exhibition, where we have prepared a POWERLINK configuration truly special presentation on POWERLINK speed for you. so much easier Anton Meindl 4 PRODUCT NEWS 2/2007 Can you guess what the cover of this POWERLINK Central control? FACTS issue is meant to depict? You're getting it right if that pattern of Decentral control? dotted lines and knobs looks anything like a decentral deployment of structural In control in components to you, where any one component is connected to all others. Even any way. a simple image such as this clearly illustrates that locally installed nodes linked in a decentral network can resort to a different structure for communications than nodes that just stand by to follow orders in a centralized implementation. ■■ Application