EL3112 | EtherCAT Terminal, 2-channel analog input, current, 0…20 mA, 16 bit, differential

The EL3112 analog input terminal processes signals in the range between 0 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. The EL3112 combines two channels in one housing. Overload condition is detected, and the terminal status is relayed to the controller via the E-bus. The EtherCAT Terminal indicates its signal state by means of light emitting diodes. The error LEDs indicate an overload condition.

Number of inputs: 2 (differential)

Power supply: via the E-bus

Technology: differential input

Signal type: differential

Signal current: 0…20 mA

Input signal bandwidth: see input filter

Distributed clocks: yes

Distributed clock precision: << 1 µs

Internal resistance: typ. 85 Ω + diode voltage

Input filter limit frequency: 5 kHz

Common-mode voltage UCM: max. 10 V

Conversion time: ~ 50 µs (fast mode ~ 35 µs)

Resolution: 16 bit (incl. sign)

Measurement error/ uncertainty: < ±0.3 % (relative to full scale value)

Surge voltage resistance: 35 V DC

Electrical isolation: 500 V (E-bus/signal voltage)

Current consumption E-bus: typ. 170 mA

Bit width in the process image: inputs: 8 byte

Special features: standard and compact process image, activatable FIR/IIR filters, limit value monitoring

Weight: approx. 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

Protect. rating/installation pos.: IP20/variable

Pluggable wiring: for all ESxxxx terminals

Approvals/markings: CE, UL, ATEX, IECEx

Ex marking ATEX:

II 3 G Ex nA IIC T4 Gc

IECEx:

Ex ec IIC T4 Gc

>>> Refer to technical document: el3112