Description

The Beckhoff 2-channel analog input terminal EL3122 processes signals in the range between 4 and 20 mA. The current is digitized to a resolution of 16 bits and is transmitted, electrically isolated, to the higher-level automation device. The input channels of the EtherCAT Terminal have differential inputs and possess a common, internal ground potential.

Specification

• Brand name: Beckhoff
• Product name: Beckhoff 2-channel analog input terminal
• Product model: EL3122
• Number of inputs: 2 (differential)
• Power supply: via the E-bus
• Technology: differential input
• Signal current: 4 to 20 mA
• Distributed clocks: Yes
• Internal resistance: 85 Ω type + diode voltage
• Input filter limit frequency: 5 kHz
• Common-mode voltage UCM: 10 V max.
• Conversion time: ~ 50 µs (fast mode ~ 35 µs)
• Resolution: 16 bit (incl. sign)
• Measuring error: < ±0.3 % (relative to full scale value)
• Surge voltage resistance: 35 V max.
• Electrical isolation: 500 V (E-bus/signal voltage)
• Current consumption E-bus type: 170 mA
• Bit width in the process image inputs: 8 byte
• Weight approximate: 55 g
• Operating/storage temperature: -25 +60 °C/-40 +85 °C
• Relative humidity: 95 %, no condensation
• Vibration/shock resistance Conforms to: EN 60068-2-6/EN 60068-2-27
• EMC immunity/emission Conforms to: EN 61000-6-2/EN 61000-6-4
• Special features                standard and compact process image, activatable FIR/IIR filters, limit value monitoring