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| Sorting Plant - AS-Interface - Siemens | 11/23/2008 11:33 AM | ||
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AS-Interface Controls Sorting of EmptiesThe Dr. Wiewelhove Conveying Plant Ably Demonstrates the Advantages of AS-Interface
The sorting plant at Bier Schneider in Dortmund, Germany with its extended
dimensions of approx. 60 x 30 m, is currently the largest plant of its kind
in Germany. The distributed configuration of sensor technology and pneumatics
in the plant represents a classic model for the conveying industry.
No bottlenecks thanks to distributed sensor technology
Reduction of pneumatic actuatorsA large number of optical sensors, widely distributed within the plant ensure that operation is not held up by bottlenecks. Approx. 100 digital AS Interface modules, with 4 inputs each, link the signals of the sensors to the control system. At the same time, the AS Interface flat conductor supplies these optical sensors with the necessary power. This not only results in a considerable reduction in signal cabling, from a multitude of parallel cables to a single bus line, but there is also no further need for additional 24V supply lines to the sensors. The cylinders required for the conveyor belts are widely distributed in this plant. Ideal conditions for implementation of the distributed AS Interface K60 pneumatic modules. The valve as pneumatic output and the answer signal of the cylinder positions as digital input are integrated in this I/O module at the AS Interface. And, above all – it is only installed where a cylinder is operating, that means 100% utilization of capacity!
Resultant short connection: The cylinder operates faster!
The short connection between the valve and the cylinder, due to the distributed configuration, also directly influences the plant cycle: there is no need for a large pressure buffer to build up during switching, so the cylinders operate faster than when subject to longer connection routes from a central island. |
