February 2020

40 n SPS REPORT February 2020 www.drivesncontrols.com electromagnetic interference caused, for example, by brakes, and offers smart real- time signal processing that compensates for drift and signal errors. Kübler has also developed a new generation of industrial Ethernet encoders that can be integrated into ProfiDrive and ProfiEnergy networks. The low-profile Sendix F58 Profinet IO encoders offer an isochronous mode for hard real-time applications with clock cycles of less than 1ms. Also new from Kübler is a 36mm- diameter digital feedback system for servomotors, available in single- and multi- turn variants with resolutions up to 2,048 sine/cosine periods or 24 bits. The Sendix S36 system will allow motor-makers to reduce the number of variants they offer and to standardise mountings between motors and encoders. LEM announced a range of Rogowski coils for measuring currents up to 300kA which achieve class 0.5 accuracy without needing extra components to calibrate the coil. A “unique” patented coil clasp eliminates inaccuracies caused by the position of conductors inside the loop. The ARU coils, available in diameters from 70– 300mm, are said to be as easy to install as existing split-core current transformers, but are thinner and more flexible. Pepperl+Fuchs presented a new laser- based sensor for 3D object detection that can measure the length, width and height of objects. The 58mm-high R2300 multi- layer scanner achieves an resolution of 0.1 degrees across its 100-degree scanning angle. It has a range of up to 10m on bright objects and 4m on dark surfaces. The German encoder-maker PWB announced a high-resolution optical scanning head for absolute position detection in tight spaces. Sold as a kit, the ABG-Head consists a single-turn resolution of up to 20 bits at 26mm, in combination with an absolute encoder disc or code strip, which it scans reflectively. SSi, BiSS and SPI interfaces are standard, and others are available. COMMUNICATIONS B&R Automation has launched a real-time Ethernet switch that can be used to set up networks using the “vendor-agnostic” OPC UA over TSN protocol. The TSN switch allows cycle times of less than 50μs. It has four real-time capable TSN ports and an Ethernet port, and can be used in star, tree or ring topologies, or daisy-chained, allowing several switches to be cascaded to reach remote cabinets or implement large real- time networks. The X20 form factor takes up little cabinet space and can be mounted next to X20 controls and I/Os. The device can be used as an unmanaged switch in non-real-time networks. Belden unveiled two next-generation ranges at SPS: Hirschmann managed Bobcat PoE (Power over Ethernet ) switches, which can supply up to 240W and provide real-time communications through TSN (Time-Sensitive Networking) technology on all ports; and Hirschmann Eagle40 industrial firewalls offering cyber-security functions for automated environments. The firewalls have more port options with increased bandwidth and encryption capabilities, and support both OSPF dynamic routing and VRRP router redundancy. Eaton has bundled its previous IoT offerings to create a single system that includes easy-to- configure gateways inWLAN, LAN and LTE Space-saving: Kübler’s measurement system for asynchronous motors Flexible: LEM’s ARU Rogowski coils Next-generation: Belden Hirschmann Bobcat PoE switches CC-Link TSN products are up and running within a year Just one year after the CC- Link Partner Association (CLPA) announced its CC- Link IETSN open networking technology which supports Time- Sensitive Networking, the organisation was demonstrating compliant products from several manufacturers on its stand at SPS. CC-Link IE TSN supports hardware and software implementations for 1Gbit and 100Mbit physical layers, master and slave devices, as well as any combination of these. CLPA was showing compatible devices from suppliers including Hilscher, HMS, Mesco, Mitsubishi Electric, port, Renesas and Sila. Mitsubishi alone has announced plans to release more than 100 automation products that support the technology, and SPS visitors could see several of these in action, including inverters, PLCs, servodrives, HMIs and remote I/O modules. The CLPA had a live demonstration in which PLCs were sharing data with each other as well as with servos, I/O blocks and a TCP/IP-based machine vision system from Cognex. The equipment was connected via a Hirschmann TSN network switch and there were also TSN switches on display fromMoxa. The machine vision demo showed how CC-Link IE TSN can handle both time-critical control data and non-time-critical network traffic, while ensuring deterministic communications. “At our debut at the Hannover Fair earlier this year, we showed our first working demo of CC- Link IE TSN products,” said John Browett, general manager of CLPA Europe.“We are proud to be taking this a step further at SPS by integrating high-performance motion control over TSN and look forward to seeing more and more devices in the near future. “In only one year from its launch, we have seen a growing interest in our latest technology,” he added.“The increasing number of development solutions available now or planned in the near future clearly shows that the market is responding positively to the possibilities that CC- Link IE TSN offers.” Although some TSN standards have been completed, work is still continuing on others.