EPP3174-0002 Beckhoff
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The Beckhoff EPP3174-0002 is part of the EPP EtherCAT P Box Modules series and features four differential analog inputs with selectable ranges including 0 to 10 V, -10 to +10 V, 0 to 20 mA, and 4 to 20 mA. It offers 16-bit resolution, operates in temperatures from -25 to 60 degrees Celsius, and provides IP65, IP66, and IP67 protection. The module has a 24 VDC supply voltage and measures 30 x 126 x 26.5 mm.
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Product Description:
The EPP3174-0002 is an analog input EtherCAT P box module manufactured by Beckhoff and included in the EPP EtherCAT P Box Modules series. It captures differential voltage or current signals from field devices and transmits digitized data directly onto the EtherCAT P network, which carries both power and communication over a single cable. This arrangement supports decentralized I/O, allowing sensors to be wired close to the machinery and reducing control-cabinet cabling in industrial automation systems.
The enclosure is suited for harsh settings. It carries a protection class of IP65/IP66/IP67, so dust ingress and water jets do not compromise the circuitry. With a housing size of 30 x 126 x 26.5 mm, it occupies little space on the machine frame. Operation is permitted from −25 to +60 °C, while components withstand storage from −40 °C to +85 °C. Measurement data are converted with 16 bits of resolution, including the sign bit, allowing fine granularity across the selected range. Four differential input channels accept either voltage or current, and the typical deviation remains below ±0.3% of the full-scale value. A module-side current draw of 100 mA from the sensor supply keeps overall field power demand low.
Supply is fed through the EtherCAT P connection at 24 VDC, and the combined sensor and load current may reach 3 A before additional protection is required. Input bandwidth is limited to 5 kHz by an internal filter, providing noise suppression while still allowing dynamic signal tracking. Field wiring is performed with 2 x M8 sockets that carry both power and communication, while the four analog signals connect through 4 x M12 sockets. Selectable measurement ranges include ±10 V, 0 to 10 V, 0 to 20 mA, or the industry-standard 4 to 20 mA span, all referenced to a maximum common-mode voltage of 35 V.
