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New Products - February 2004Eliminating the analogue interfaceThe latest addition to the Trio range of motion control products from Unimatic Engineers is a SERCOS daughter card, which enables high-speed fibre-optic communications between drives and motion products. The SERCOS daughter card can be used with Trio's MC206 and MC224 Motion Coordinator products, both of which are supplied and supported by Unimatic.SERCOS is an open standard that replaces the traditional mass of wires with a single fibre-optic cable to provide reliable, noise-immune, high-speed data transmission between drives and motion controllers. Specifically designed for drive control applications, the SERCOS interface can transmit cyclic data at high speeds with precise synchronisation. In conjunction with the Trio MC206 or MC224 Motion Coordinators, cycle times down to 250µs can be achieved for eight axes in a ring system, and up to four SERCOS daughter boards can be used per system. Operating at speeds up to 16MHz, the board enhances the communications between the Motion Coordinators and the drives, significantly improving motor performance and positional accuracy. Trio's SERCOS interface is built around the latest SERCON 816 ASIC - a high-speed chip employing 32-bit technology for enhanced communications in drive systems. As well as carrying the control information, the SERCOS interface can also be used for the distribution of the extensive diagnostics information that modern drives generate, enabling powerful integrated systems to be quickly configured. The SERCOS daughter board plugs directly into expansion ports on the compatible Trio Motion Coordinators.
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