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Article | July 25, 2013
Sick: Safety controller cascades up to 32 sensors onto one loop
See it at PACK EXPO Las Vegas Booth # 7107! The Flexi Loop safety controller from SICK uses a single cable with an M12 plug to connect e-stops, sensors, switches, lamps, pushbuttons and interlocks so that it can cascade up to 32 safety switches and OSSD safety sensors onto one loop – independent of the manufacturer.
Up to eight Flexi Loops can be supported byFlexi Soft safety controllers, enabling a total of 256 switches in a small footprint. As a result, the Flexi Loop requires minimal wiring, which saves costs and ensures fast configuration.
This modular safety concept integrates all common fieldbuses, including EtherNet/IP, CANopen, DeviceNet and PROFINET IO. Diagnostic data about each of the sensors connected to the loop can be shared via these gateways, which helps troubleshoot problems and reduce machine downtime. Regardless of the number of sensors or switches, the Flexi Loop is able to maintain a performance level of PLe since it monitors each sensor individually. The Flexi Loop is suitable for safety applications that require several doors, e-stops, and electro-sensitive protective devices.
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