EL3014

Product information

Product Overview

The EL3014 is a 4-channel analog input terminal for 0 … 20 mA current signals, digitised at 12 bit with differential inputs. Current loops are chosen in industrial environments because they tolerate long cable runs and induced noise far better than voltage signals.

Each channel is electrically isolated from the E-bus at 500 V. Conversion is multiplexed, with a default conversion time of 0.625 ms.

Why Buyers Specify This Model

Why current, not voltage

A 4 … 20 mA or 0 … 20 mA loop is largely immune to the resistance of the cable and to the small voltages induced by drives and contactors nearby. A 0 … 10 V signal over the same run loses accuracy as the loop resistance changes and picks up noise.

The EL3014’s internal resistance is typically 85 Ω plus diode voltage, which is the value the transmitter has to drive. Check the transmitter’s maximum load specification against that before committing — it is the compatibility question that actually decides whether a loop works.

Differential inputs and common mode range

The four inputs are differential, with a common mode voltage tolerance of up to 10 V. Differential measurement cancels the noise that appears equally on both conductors, which is exactly the noise a current loop is exposed to in a cabinet full of drives.

Combined with the 500 V electrical isolation between E-bus and signal voltage, that makes the EL3014 usable where a single-ended input would be marginal.

Resolution, accuracy and filtering

Resolution is 12 bit (presented as 16 bit including sign) and the measurement error is specified as less than ±0.3% relative to full scale. The input filter cut-off frequency is 1 kHz, and Beckhoff lists activatable FIR/IIR filters and limit value monitoring as special features.

12 bit over a 20 mA span is roughly 5 µA per digit. Where that is not enough — weighing, precise pressure or flow control — step up to a 16-bit input terminal instead of trying to average your way there in the PLC program.

Technical Specifications (Official Beckhoff Data)

Parameter	Official value
Number of inputs	4 (differential)
Power supply	via the E-bus
Signal current	0…20 mA
Distributed clocks	–
Internal resistance	typ. 85 Ω + diode voltage
Input filter cut-off frequency	1 kHz
Common mode voltage U CM	max. 10 V
Conversion time	0.625 ms default setting, configurable, multiplex
Resolution	12 bit (16 bit presentation 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. 130 mA
Current consumption power contacts	–
Bit width in the process image	inputs: 16 byte
Configuration	no address or configuration setting
Special features	activatable FIR/IIR filters, limit value monitoring
Weight	approx. 55 g
Operating temperature	-25…+60°C
Storage temperature	-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
Pluggable wiring level	for all ESxxxx terminals
Protect. rating/installation pos.	IP20/variable
Approvals/markings	CE, CCC, UL, ATEX, IECEx, cFMus
Ex marking	ATEX: / II 3G Ex ec IIC T4 Gc / IECEx: / Ex ec IIC T4 Gc / cFMus: / Class I, Division 2, Groups A, B, C, D / Class I, Zone 2, AEx ec IIC T4 Gc

Specifications are Beckhoff’s official product data for the EL3014. The ES3014 variant is identical but with a pluggable wiring level.

Housing, Installation and Wiring

Data	Official value
Design form	compact terminal housing with signal LEDs
Material	polycarbonate
Installation	on 35 mm DIN rail, conforming to EN 60715 with lock
Side by side mounting by means of	double slot and key connection
Marking	labeling of the BZxxxx series
Wiring	solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver
Connection cross-section	s*: 0.08…2.5 mm², / st*: 0.08…2.5 mm², / f*: 0.14…1.5 mm²
Connection cross-section AWG	s*: AWG28…14, / st*: AWG28…14, / f*: AWG26…16
Stripping length	8…9 mm
Current load power contacts	I max : 10 A
Dimensions (W x H x D)	12 mm x 100 mm x 68 mm

Ordering Information and Variants

Beckhoff’s own ordering information for this product:

Order code	Official description
EL3014	EtherCAT Terminal, 4-channel analog input, current, 0…20 mA, 12 bit, differential
ES3014	EtherCAT Terminal, 4-channel analog input, current, 0…20 mA, 12 bit, differential, pluggable wiring level

Material Compliance

The following is Beckhoff’s published material compliance data for this product, reproduced unchanged. Beckhoff notes that absence of a substance is not verified by analytical tests.

Item	Official statement
REACH SVHC	no
POP	compliant
RoHS	compliant with exemption
RoHS exemption	7c-I: Lead-containing electrical and electronic components in glass and ceramic materials, excluding dielectric ceramics in capacitors
China-RoHS	www.beckhoff.com/china-rohs-io
CA Prop65	www.beckhoff.com/prop65

Official Documentation

Every figure in the table above is published by Beckhoff. We reproduce it rather than paraphrase it, so that you can check it against the manufacturer’s own documentation:

• Beckhoff official product page — EL3014 — the source of every specification on this page.
• Beckhoff official documentation for EL3014 — downloadable PDF from Beckhoff’s documentation server.
• Canonical Beckhoff documentation link for EL3014.

Ordering This Part

Tell us the model and, where an order code exists, the complete code — Beckhoff variants differ in ways that matter, as set out above. For discontinued models, a nameplate photograph is the fastest way to confirm exactly what you have.

• Exact model or order code (including any suffix such as -0111 or -ES variants)
• Quantity required
• Whether you need the terminal alone or a complete station with coupler and power supply
• For replacements: a photo of the existing nameplate or the old order code

We confirm availability and condition before quoting. We do not publish stock levels or lead times on this page because they change; ask and we will answer specifically for your requirement.

Frequently Asked Questions

12 bit or 16 bit — how do I choose?

12 bit over a 0 … 20 mA span is about 5 µA per digit, with a specified error below ±0.3% of full scale. For monitoring and general control that is usually enough. For weighing, precision dosing or metrology-grade measurement, choose a 16-bit input terminal.

Can I use it for 4 … 20 mA transmitters?

Yes. The terminal measures 0 … 20 mA, which includes the 4 … 20 mA range. Check the transmitter’s permissible load against the terminal’s typical 85 Ω internal resistance plus diode voltage before committing.

What is the conversion time?

0.625 ms as the default setting, configurable, multiplexed across the four channels. Remember that multiplexing means the channels are not all sampled at the same instant.

Does it have adjustable filters?

Yes. Beckhoff lists activatable FIR/IIR filters and limit value monitoring as special features, with a 1 kHz input filter cut-off frequency.

What is the difference between EL3014 and ES3014?

Only the wiring level — the ES3014 has a pluggable wiring level. Both are listed in Beckhoff’s ordering information for this product.