EL3068 Beckhoff High-performance 8-channel Analog Input EtherCAT Terminal Block

EL3068 Beckhoff High-performance 8-channel Analog Input EtherCAT Terminal Block

1.Overview of the EL3068 Beckhoff

The EL3068 is a high-performance 8-channel analog input EtherCAT terminal block from Beckhoff GmbH, Germany, designed for multi-channel voltage signal acquisition in industrial automation. This module can accurately measure analog signals within the range of 0…10 V, converting analog signals to digital signals with 12-bit resolution (16-bit representation, including the sign bit), and transmitting them at high speed to the controller via the EtherCAT bus with electrical isolation.

As a crucial component of Beckhoff's EtherCAT I/O system, the EL3068 features a compact terminal block design, only 12mm wide, allowing direct mounting on standard DIN rails. It integrates seamlessly with Beckhoff's full range of EtherCAT couplers (such as EK1100 and EK1122) and controllers, providing high-density, high-precision analog signal acquisition solutions for various industrial applications.

1. 8-Channel High-Density Single-Ended Input
Integrates 8 single-ended analog input channels with a 0V power contact reference, suitable for parallel acquisition of multi-point voltage signals.
Internal input impedance >130 kΩ, minimizing impact on signal source load and ensuring measurement accuracy.
All channel status is clearly displayed via LED indicators, facilitating on-site debugging and status monitoring.

2. High-Precision Signal Conversion
12-bit resolution (16-bit data representation, including the sign bit), meeting the accuracy requirements of most industrial control systems.
Measurement error <±0.3% (relative to full scale), ensuring long-term stable and reliable measurement performance.
Input filtering limit frequency of 1 kHz effectively suppresses high-frequency interference.
Default conversion time. 1.25 ms, supports configurable multiplexed sampling, balancing speed and accuracy

3. High-speed EtherCAT communication
Based on EtherCAT industrial Ethernet technology, achieving microsecond-level real-time data transmission
Process image bit width is 32 bytes (input), supporting standard and compact process images
Distributed clock function support (requires a supported coupler) to ensure precise synchronization between multiple modules

4. Industrial-grade design and safety isolation
Electrical isolation strength of 500 V (E-bus/signal voltage), effectively protecting the upper controller from field interference and electrical faults
Maximum insulation strength of 30 V, electrical isolation between input electronic components and power contacts, improving system safety
No address or configuration settings required, plug and play, significantly reducing engineering implementation difficulty

5. Intelligent function expansion
Supports activated FIR/IIR digital filtering, flexibly suppressing power frequency interference and random noise
Built-in limit monitoring function, enabling early warning and event triggering at the module level
Supports TwinCAT IoT solutions, allowing sensor data to be directly uploaded to the cloud for predictive maintenance and process optimization

2.Core Features:

Model: EL3068
Input Quantity: 8 channels (single-ended)
Signal Voltage Range: 0…10 V
Resolution: 12 bits (16-bit representation, including sign bit)
Internal Resistance: > 130 kΩ
Switching Time: Default 1.25 ms (configurable)
Measurement Error: < ±0.3% (full scale)
Electrical Isolation: 500 V (E-bus/signal voltage)
E-bus Current Consumption: Typical 130 mA
Operating Temperature: -25…+60 °C
Storage Temperature: -40…+85 °C
Relative Humidity: 95%, non-condensing
Protection Rating: IP20
Dimensions: 12 mm × 100 mm × 68 mm (W×H×D)
Weight: Approx. 60 g
Certifications: CE, CCC, UL, ATEX, IECEx

High-density channel design: A single module provides 8 independent input channels, enabling simultaneous processing of multiple sensor signals, helping to save control cabinet space and system cost.

High precision and stability: 12-bit resolution and measurement error of less than ±0.3% accurately capture signal changes. Electrical isolation design effectively suppresses interference and ensures signal integrity.

Flexible configuration and diagnostics: Conversion time and filter parameters can be configured in software to balance sampling speed and noise immunity. The module supports limit monitoring and real-time diagnostics, quickly identifying faults such as sensor disconnection or signal over-limit.

EtherCAT integration: Based on the EtherCAT bus, it enables high-speed, deterministic real-time communication, facilitating integration into Beckhoff TwinCAT automation systems.

Robotics: Used to acquire position, velocity, and force sensor signals for robots, enabling multi-axis coordinated motion control.

Fluid Engineering: Used in fluid control systems to monitor parameters such as flow rate, pressure, and level for precise regulation.

Aerospace and Energy: Used for precision measurement and data acquisition in demanding aerospace test benches or energy management systems.

3.Product details pictures

4. Related products

EL3068 Beckhoff High-performance 8-channel Analog Input EtherCAT Terminal Block Images