EL3122

BECKHOFF

BECKHOFF EL3122 EtherCAT Terminal

SKU EL3122

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: BECKHOFF
  • Product No.: EL3122
  • Origin Germany
  • Product Type: EtherCAT Terminals
  • Payment: T/T, Western Union
  • Weight: 0.055 kg
  • Dimensions: 12 mm x 100 mm x 68 mm
  • Shipping port: Xiamen
  • Warranty: 12 months

Tags

Analog Input Terminals EtherCAT Terminals
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Product Description

Description

The BECKHOFF EL3122 is a 2-channel analog input EtherCAT Terminal designed for highly precise measurement of current signals in the 4 to 20 mA range. Both channels operate as differential inputs, providing a high-resolution 16-bit digital representation of the measured physical values. This terminal is integrated into the EtherCAT system via the standard E-bus connection, enabling fast communication and high-speed data acquisition.

To ensure optimal signal processing, the BECKHOFF EL3122 supports Distributed Clocks (DC) for highly synchronized sampling across the network. It features flexible configuration options, including activatable digital filters (FIR/IIR) to smooth input signals and eliminate high-frequency interference. Additionally, the terminal supports limit value monitoring and offers both standard and compact process images to optimize network bandwidth utilization.

Features

  • Two differential analog input channels.
  • Precise 16-bit resolution (including sign) for high-accuracy measurements.
  • Standard 4 to 20 mA signal current range.
  • Distributed Clocks (DC) support for microsecond-level synchronization.
  • Configurable digital filters (FIR and IIR) and limit value monitoring.
  • Compact 12 mm housing width with status indicator LEDs.
  • Electrical isolation of 500 V between the E-bus and the signal path.

Applications

  • High-speed industrial process monitoring and control.
  • Precise current measurements from field transmitters, flow meters, and pressure sensors.
  • Synchronized data acquisition in distributed control system topologies.
  • Analog sensor integration in hazardous locations (Zone 2).

Technical Specifications

General

Manufacturer BECKHOFF
Model EL3122
Product Type EtherCAT Terminal
Number of Inputs 2 differential inputs
Technology Differential input
Bit Width in Process Image Inputs: 8 bytes
Special Features Standard and compact process image, activatable FIR/IIR filters, limit value monitoring

Electrical and Signal

Signal Current 4 to 20 mA
Resolution 16 bit (including sign)
Measuring Error < ±0.3% (relative to full scale value)
Internal Resistance Typically 85 ohms + diode voltage
Input Filter Limit Frequency 5 kHz
Common-Mode Voltage (Ucm) Max. 10 V
Surge Voltage Resistance Max. 35 V
Conversion Time ~ 50 microseconds (fast mode ~ 35 microseconds)
Electrical Isolation 500 V (E-bus / signal voltage)

Power Supply and Bus

Power Supply Via the E-bus
Current Consumption E-bus Typically 170 mA
Current Consumption Power Contacts None
Current Load Power Contacts Imax: 10 A
Distributed Clocks (DC) Yes

Mechanical and Installation

Dimensions (W x H x D) 12 mm x 100 mm x 68 mm
Weight Approx. 55 g
Housing Material Polycarbonate
Mounting 35 mm DIN rail conforming to EN 60715 with lock
Wiring Technology Spring actuation by screwdriver
Solid Conductor Connection Cross-section 0.08 to 2.5 mm² (AWG 28 to 14)
Flexible Conductor Connection Cross-section 0.08 to 2.5 mm² (AWG 28 to 14)
Ferrule Connection Cross-section 0.14 to 1.5 mm² (AWG 26 to 16)
Stripping Length 8 to 9 mm

Environmental and Certifications

Operating Temperature -25 to +60 degC
Storage Temperature -40 to +85 degC
Relative Humidity 95%, no condensation
Protection Class IP20
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
Approvals and Markings CE, UL, ATEX
Ex Marking II 3 G Ex nA IIC T4 Gc

Installation Guidelines

  1. Ensure the system and all connected power supplies are de-energized before mounting, wiring, or removing any modules.
  2. Mount the BECKHOFF EL3122 onto a 35 mm DIN rail (conforming to EN 60715). Align the terminal housing carefully with the neighboring modules using the double slot and key connection.
  3. Ensure the terminal locks securely into place with a clear click to establish reliable E-bus electrical contact.
  4. Strip the input signal conductors to a length of 8 to 9 mm. Insert the wire into the connection point by using a screwdriver to actuate the tension clamp.
  5. Connect the differential current signals (4 to 20 mA) to the assigned terminals according to your system wiring diagram. Ensure proper polarity to avoid measurement errors.
  6. For applications subject to electrical noise, use shielded cabling and terminate the shield correctly at the defined ground potential.
  7. Re-energize the system and perform initial system configuration and diagnostic checks in the TwinCAT engineering environment.
Shipping &amp; Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
FAQ
What is the primary function of the BECKHOFF EL3122?
The BECKHOFF EL3122 is a 2-channel differential analog input EtherCAT Terminal designed to acquire precise current signals in the 4 to 20 mA range with 16-bit resolution.
Does the BECKHOFF EL3122 support Distributed Clocks (DC)?
Yes, the BECKHOFF EL3122 supports Distributed Clocks (DC), which enables highly precise and synchronized analog sampling across the control network.
What are the power requirements of the BECKHOFF EL3122?
The BECKHOFF EL3122 is powered directly via the E-bus and has a typical current consumption of 170 mA. It does not draw power from the field-side power contacts.
Can the BECKHOFF EL3122 be used in hazardous environments?
Yes, the BECKHOFF EL3122 is certified for hazardous locations under ATEX with the Ex marking II 3 G Ex nA IIC T4 Gc, making it suitable for installation in Zone 2 areas.
What filtering options are configurable on the BECKHOFF EL3122?
The BECKHOFF EL3122 features configurable digital filters, including Finite Impulse Response (FIR) and Infinite Impulse Response (IIR) filters, to smooth noisy signals or suppress specific interference frequencies.
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BECKHOFF EL3122 EtherCAT Terminal

Only 10 item(s) left in stock

  • Manufacturer: BECKHOFF

  • Product No.: EL3122

  • Country of origin:Germany

  • Product Type: EtherCAT Terminals

  • Payment: T/T, Western Union

  • Weight: 55g

  • Dimensions: 12 mm x 100 mm x 68 mm

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Description
FAQ
Shipping Returns
Additional details
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Description

The BECKHOFF EL3122 is a 2-channel analog input EtherCAT Terminal designed for highly precise measurement of current signals in the 4 to 20 mA range. Both channels operate as differential inputs, providing a high-resolution 16-bit digital representation of the measured physical values. This terminal is integrated into the EtherCAT system via the standard E-bus connection, enabling fast communication and high-speed data acquisition.

To ensure optimal signal processing, the BECKHOFF EL3122 supports Distributed Clocks (DC) for highly synchronized sampling across the network. It features flexible configuration options, including activatable digital filters (FIR/IIR) to smooth input signals and eliminate high-frequency interference. Additionally, the terminal supports limit value monitoring and offers both standard and compact process images to optimize network bandwidth utilization.

Features

  • Two differential analog input channels.
  • Precise 16-bit resolution (including sign) for high-accuracy measurements.
  • Standard 4 to 20 mA signal current range.
  • Distributed Clocks (DC) support for microsecond-level synchronization.
  • Configurable digital filters (FIR and IIR) and limit value monitoring.
  • Compact 12 mm housing width with status indicator LEDs.
  • Electrical isolation of 500 V between the E-bus and the signal path.

Applications

  • High-speed industrial process monitoring and control.
  • Precise current measurements from field transmitters, flow meters, and pressure sensors.
  • Synchronized data acquisition in distributed control system topologies.
  • Analog sensor integration in hazardous locations (Zone 2).

Technical Specifications

General

Manufacturer BECKHOFF
Model EL3122
Product Type EtherCAT Terminal
Number of Inputs 2 differential inputs
Technology Differential input
Bit Width in Process Image Inputs: 8 bytes
Special Features Standard and compact process image, activatable FIR/IIR filters, limit value monitoring

Electrical and Signal

Signal Current 4 to 20 mA
Resolution 16 bit (including sign)
Measuring Error < ±0.3% (relative to full scale value)
Internal Resistance Typically 85 ohms + diode voltage
Input Filter Limit Frequency 5 kHz
Common-Mode Voltage (Ucm) Max. 10 V
Surge Voltage Resistance Max. 35 V
Conversion Time ~ 50 microseconds (fast mode ~ 35 microseconds)
Electrical Isolation 500 V (E-bus / signal voltage)

Power Supply and Bus

Power Supply Via the E-bus
Current Consumption E-bus Typically 170 mA
Current Consumption Power Contacts None
Current Load Power Contacts Imax: 10 A
Distributed Clocks (DC) Yes

Mechanical and Installation

Dimensions (W x H x D) 12 mm x 100 mm x 68 mm
Weight Approx. 55 g
Housing Material Polycarbonate
Mounting 35 mm DIN rail conforming to EN 60715 with lock
Wiring Technology Spring actuation by screwdriver
Solid Conductor Connection Cross-section 0.08 to 2.5 mm² (AWG 28 to 14)
Flexible Conductor Connection Cross-section 0.08 to 2.5 mm² (AWG 28 to 14)
Ferrule Connection Cross-section 0.14 to 1.5 mm² (AWG 26 to 16)
Stripping Length 8 to 9 mm

Environmental and Certifications

Operating Temperature -25 to +60 degC
Storage Temperature -40 to +85 degC
Relative Humidity 95%, no condensation
Protection Class IP20
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
Approvals and Markings CE, UL, ATEX
Ex Marking II 3 G Ex nA IIC T4 Gc

Installation Guidelines

  1. Ensure the system and all connected power supplies are de-energized before mounting, wiring, or removing any modules.
  2. Mount the BECKHOFF EL3122 onto a 35 mm DIN rail (conforming to EN 60715). Align the terminal housing carefully with the neighboring modules using the double slot and key connection.
  3. Ensure the terminal locks securely into place with a clear click to establish reliable E-bus electrical contact.
  4. Strip the input signal conductors to a length of 8 to 9 mm. Insert the wire into the connection point by using a screwdriver to actuate the tension clamp.
  5. Connect the differential current signals (4 to 20 mA) to the assigned terminals according to your system wiring diagram. Ensure proper polarity to avoid measurement errors.
  6. For applications subject to electrical noise, use shielded cabling and terminate the shield correctly at the defined ground potential.
  7. Re-energize the system and perform initial system configuration and diagnostic checks in the TwinCAT engineering environment.
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Key Features:
#Analog Input Terminals #EtherCAT Terminals

What is the primary function of the BECKHOFF EL3122?
The BECKHOFF EL3122 is a 2-channel differential analog input EtherCAT Terminal designed to acquire precise current signals in the 4 to 20 mA range with 16-bit resolution.

Does the BECKHOFF EL3122 support Distributed Clocks (DC)?
Yes, the BECKHOFF EL3122 supports Distributed Clocks (DC), which enables highly precise and synchronized analog sampling across the control network.

What are the power requirements of the BECKHOFF EL3122?
The BECKHOFF EL3122 is powered directly via the E-bus and has a typical current consumption of 170 mA. It does not draw power from the field-side power contacts.

Can the BECKHOFF EL3122 be used in hazardous environments?
Yes, the BECKHOFF EL3122 is certified for hazardous locations under ATEX with the Ex marking II 3 G Ex nA IIC T4 Gc, making it suitable for installation in Zone 2 areas.

What filtering options are configurable on the BECKHOFF EL3122?
The BECKHOFF EL3122 features configurable digital filters, including Finite Impulse Response (FIR) and Infinite Impulse Response (IIR) filters, to smooth noisy signals or suppress specific interference frequencies.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
Germany

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