EtherCAT I/O system

The Beckhoff EL3751 1-channel EtherCAT Terminal for analog measurement technology combines high measurement accuracy – ±0.01 % of the full scale value for most interfaces, at 25 °C (±5 °C) – with a high sampling rate of up to 10,000 samples per second and 24 bit resolution (incl. sign). Other important factors include long-term hardware stability through pre-aging, as well as extensive configuration options for the nominal measuring range of the input channel. The XFC technology (eXtreme Fast Control) functions are likewise available in the EL3751. Optionally, the measured data can be transmitted to higher-level automation devices with oversampling. The integrated distributed clocks ensure precisely synchronised sampling across the EtherCAT system. The “Extended Range” feature enables effective measurement even beyond the nominal measuring range, with possible extension up to 107 percent. To suppress aliasing effects, the input channel features two configurable numeric software filters up to 39th order FIR / 6th order IIR. The filters can be preselected or freely defined, so that a band stop or a band pass can be implemented.