Part Number:

CU1128

Manufacturer: Beckhoff
Series: CU EtherCAT Series
  • Rated 4.5 (16 total ratings)
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The Beckhoff CU1128, from the CU EtherCAT Series, is designed for the coupling of EtherCAT junctions. This unit features 8 RJ45 bus interfaces, operates with a data transfer rate of 100 Mbit/s, and measures 122mm wide, 100mm high, and 38mm deep. It has a protection rating of IP20 and variable installation positions.

Part Number:

CU1128

Manufacturer: Beckhoff
Series: CU EtherCAT Series
  • Rated 4.5 (16 total ratings)
  • Straightforward Pricing: No Rush Fees, No Credit Card Fees
  • Call for Expedited Shipping and Product Condition Options
Free Ground Shipping
Worldwide Delivery
Repair Options Available

The Beckhoff CU1128, from the CU EtherCAT Series, is designed for the coupling of EtherCAT junctions. This unit features 8 RJ45 bus interfaces, operates with a data transfer rate of 100 Mbit/s, and measures 122mm wide, 100mm high, and 38mm deep. It has a protection rating of IP20 and variable installation positions.

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Product Description

Made by Beckhoff, the CU1128 is an essential part of industrial automation and was created especially for the challenging job of linking EtherCAT junctions. For real-time data interchange between several devices and control systems in a factory or plant environment, the CU1128 serves as a central hub that makes it easier for multiple EtherCAT segments to join and interact. Included in the CU EtherCAT Series, this device has 8 RJ45 bus interfaces available. These interfaces serve as the actual sites of connection for the network's lifelines, the EtherCAT cables. The Ethernet communication standard RJ45 connections is well-known for its user-friendliness and for guaranteeing a dependable and secure connection for data transfer. Because it permits a high degree of connection and network expansion, the selection of 8 ports is important because it enables the CU1128 to handle communication between several devices at once.

A well-known standard in industrial Ethernet connection, the CU1128's data transmission rate of 100 Mbit/s is not the fastest currently on the market. A smooth and effective data flow between devices is ensured by this speed, which is enough for several industrial applications. By reducing latency and balancing speed and dependability, the 100 Mbit/s rate guarantees that time-sensitive data, including sensor readings from manufacturing lines or control signals for robotic arms, are delivered with the least amount of delay possible. Regarding its dimensions, the CU1128 is 122mm in width, 100mm in height, and 38mm in depth. Since space is often limited, its small size makes it appropriate for integration into a variety of control cabinets and systems. The device's versatility is further increased by its adjustable installation locations, which let engineers put it wherever best fits the automation system's needs and layout. A 24 V DC power supply, which is a popular standard in industrial settings, powers the CU1128.

The device's energy efficiency is shown by its usual current usage of 185 mA at 24 V DC. Power consumption in industrial settings must be kept to a minimum in order to save money and prevent heat buildup, which may impair the lifetime and functionality of electronic components. The purpose of the CU1128 is to endure the demanding conditions of industrial settings. From chilly storage facilities to heated manufacturing floors, its working temperature range of -25°C to +60°C enables it to operate dependably in a variety of settings. An IP20 protection rating is assigned to the CU1128. Despite not providing protection against liquids, this Ingress Protection rating shows that the item is safe against solid objects bigger than 12mm, such as fingers or tools. For electromagnetic compatibility (EMC), the CU1128 conforms with many standards, such as EN 61000-6-2 for immunity and EN 61000-6-4 for emissions. For the CU1128, Wake Industrial provides a one-year warranty, giving customers confidence in the product's dependability and quality.

CU1128 Technical Specifications

Task Within EtherCAT System: coupling of EtherCAT junctions
Dimensions (w X H X D): 122 mm x 100 mm x 38 mm
Operating/storage Temperature: -25…+60 °C/-40…+85 °C
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
Protection Rating/installation Position: IP20/variable
Approvals/markings: CE, UL
Data Transfer Medium: Ethernet/EtherCAT cable (min. Cat.5), shielded
Bus Interface: 8 x RJ45
Distance Between Stations: max. 100 m (100BASE-TX)
Protocol: EtherCAT
Delay: approx. 1 µs per port
Data Transfer Rates: 100 Mbit/s
Power Supply: 24 (18…30) V DC, 3-pin connection (+, -, PE)
Current Consumption 24 V Dc: typ. 185 mA

Frequently Asked Questions about CU1128


Q: What is the purpose of the CU1128 in industrial automation?

A: The Beckhoff CU1128 serves as an 8-port EtherCAT junction designed specifically for coupling EtherCAT segments. It functions as a central hub that facilitates the connection and interaction of multiple EtherCAT devices, ensuring efficient real-time data exchange crucial for automation tasks. This capability allows for high connectivity and network expansion, which are essential for managing communication across various devices and control systems in a factory setting.

Q: What are the physical specifications of the CU1128?

A: The CU1128 has compact dimensions of 122mm in width, 100mm in height, and 38mm in depth. This small footprint makes it suitable for installation in various control cabinets where space is limited. Additionally, it features a variable installation position, allowing engineers to mount the device in orientations that best fit the layout of the automation system.

Q: What data transfer capabilities does the CU1128 provide?

A: The CU1128 supports a data transfer rate of 100 Mbit/s, which is a well-established standard in industrial Ethernet communication. This transfer rate is adequate for many industrial applications, ensuring smooth data flow with minimal latency. It effectively balances speed and reliability, making it suitable for transmitting time-sensitive data such as control signals and sensor readings.

Q: What is the power supply requirement for the CU1128?

A: The CU1128 operates with a 24 V DC power supply and has a typical current consumption of 185 mA. This specification aligns with common standards in industrial settings, where maintaining energy efficiency is critical for cost savings and reducing heat generation. The device also features a 3-pin connection for power input, ensuring secure and reliable connectivity.

Q: What are the environmental and protection ratings of the CU1128?

A: The CU1128 is rated with an IP20 protection level, meaning it is safeguarded against solid objects larger than 12mm, such as fingers or tools, but it does not provide protection against liquids. It can operate effectively within a temperature range of -25°C to +60°C, making it suitable for diverse industrial environments, from cold storage to warm factory floors. Additionally, it conforms to various EMC standards for immunity and emissions, ensuring reliable operation amidst electromagnetic interference.

Internal Product Review

  • ‘‘This EtherCAT junction provides reliable connectivity with 8 RJ45 ports for network expansion. The CU1128 supports data transfer rates up to 100 Mbit/s, suitable for many industrial applications. Compact design and variable installation options allow for flexible integration into various control cabinets and systems.’’

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