Beckhoff announces the EtherCAT Terminals of the ELX series with TwinSAFE SC technology

  Beckhoff announces ELX series of EtherCAT Terminals with TwinSAFE-SC technology

13. July 2018 – The Beckhoff ELX series EtherCAT Terminals have been enhanced with analog input terminals with built-in TwinSAFE SC (Single Channel) technology. These I / O terminals can be used to support hazardous area applications requiring intrinsically safe signal transmission as well as functional safety functions.

Certified to ATEX and IECEx standards, the ELX series terminals allow direct connection of intrinsically safe field devices through an integrated safety barrier at Zone 0/20. The terminal designs enhanced by TwinSAFE SC technology now provide a level of security similar to PL-d / Cat. 3 according to EN ISO 13849-1 or SIL 2 according to EN 62061. In this way, users can make all process data available in a system available for use in safety technology. For example, to monitor the speed of fans in potentially explosive atmospheres, for example

The I / Os are 12 mm wide terminals with two or four analog input channels for 0/4 … 20 mA and for RTD resistor sensors, thermocouples / mV and strain gauges available. In addition, a single-channel terminal is available for the direct connection of intrinsically safe incremental encoders that evaluate a diagnostic-capable NAMUR signal according to IEC 60947-5-6.

Using TwinSAFE SC technology, it is possible to use standard signals for safety-relevant tasks in any network or fieldbus system. The data from a TwinSAFE SC terminal are fed into the TwinSAFE Logic and there processed in a safety-related manner in several channels. The data coming from different sources are analyzed, checked for plausibility and subjected to a "voting" process. This is done via certified function blocks such as Scale, Compare / Voting (1oo2, 2oo3, 3oo5), Limit, etc. For safety reasons, however, at least one of the data sources must be a TwinSAFE SC component.

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 Beckhoff announces the EtherCAT Terminals of the ELX series with TwinSAFE SC technology

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