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CU1128-1005 | Beckhoff 8-Port EtherCAT Junction Module with Hot-Connect Support
- Regular price
- $514.00
- Sale price
- $514.00
- Regular price
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Product Description P/N: CU1128-1005
Description
The Beckhoff CU1128-1005 is an 8-port EtherCAT junction module designed to extend and structure EtherCAT networks. It supports flexible topologies and enables hot-connect of EtherCAT segments while maintaining real-time performance.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Beckhoff |
| Category | Industrial Networking |
| Part Number | CU1128-1005 |
| Subcategory | EtherCAT Junction Modules |
| Task in System | Coupling of EtherCAT junctions |
| Transmission Medium | Shielded Ethernet/EtherCAT cable (Cat.5 or higher) |
| Bus Interface | 8 × RJ45 |
| Data Transfer Rate | 100 Mbit/s |
| Delay | Approx. 1 µs per port |
| Supply Voltage | 24 VDC (18–30 VDC) |
| Current Consumption | 185 mA (typ.), 140 mA from HW version 08 |
| Distributed Clocks | Yes |
| Mounting | 35 mm DIN rail (EN 60715) |
| Dimensions (W × H × D) | 122 × 100 × 38 mm |
| Weight | Approx. 430 g |
| Operating Temperature | -25°C to +60°C (HW08), previously 0°C to +55°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | Up to 95%, non-condensing |
| Protection Class | IP20 |
| Vibration/Shock Resistance | EN 60068-2-6 / EN 60068-2-27 |
| EMC Standards | EN 61000-6-2 / EN 61000-6-4 |
| Approvals | CE, EAC, UKCA, cULus |
Information About CU1128-1005
The CU1128-1005 is a Beckhoff EtherCAT junction device that provides eight RJ45 ports for coupling EtherCAT segments in line, tree, or star topologies. It allows multiple EK1100 couplers or EtherCAT Box modules to be connected simultaneously and includes direct LED indicators for link and activity status. Operating at 100 Mbit/s, it ensures low-latency communication with delays of approximately 1 µs per port. The unit is powered by 24 VDC (18–30 VDC range) and consumes up to 185 mA, with improved efficiency from hardware version 08 onward. Its rugged industrial design includes vibration and shock resistance, EMC compliance to EN 61000-6-2/-6-4, and an IP20 protection class for installation in control cabinets. With support for distributed clocks and hot-connect functionality, the CU1128-1005 is an essential networking module for large and complex EtherCAT automation systems.
Key Features:
-
Eight-port EtherCAT junction: Equipped with 8 RJ45 ports that enable the creation of complex EtherCAT topologies such as line, tree, and star without requiring multiple couplers.
-
Hot-connect functionality: Allows EtherCAT segments to be coupled or uncoupled during live operation, supporting maintenance or system expansion without downtime.
-
Real-time communication performance: Ensures high-speed data transfer at 100 Mbit/s with an ultra-low delay of only 1 microsecond per port, preserving deterministic control cycles.
-
Distributed clock synchronization: Provides precise timing coordination across connected EtherCAT devices, crucial for motion control and time-sensitive automation tasks.
-
Flexible power supply and efficiency: Operates on 24 VDC with a wide tolerance range of 18–30 VDC, consuming only 140–185 mA depending on hardware version.
-
Industrial-grade durability: Designed to withstand mechanical vibration, shock, and electromagnetic interference, ensuring stable performance in harsh industrial environments.
-
Broad environmental adaptability: Functions reliably in ambient temperatures from -25°C to +60°C and stores safely at -40°C to +85°C with 95% non-condensing humidity tolerance.
-
Compact DIN rail mounting: Features a slim 122 × 100 × 38 mm profile with IP20 protection, easily installed in standard control cabinets for space-saving integration.
The CU1128-1005 delivers the reliability and performance required for managing complex EtherCAT networks in industrial automation, ensuring synchronized, flexible, and uninterrupted system operation.
Description
The Beckhoff CU1128-1005 is an 8-port EtherCAT junction module designed to extend and structure EtherCAT networks. It supports flexible topologies and enables hot-connect of EtherCAT segments while maintaining real-time performance.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Beckhoff |
| Category | Industrial Networking |
| Part Number | CU1128-1005 |
| Subcategory | EtherCAT Junction Modules |
| Task in System | Coupling of EtherCAT junctions |
| Transmission Medium | Shielded Ethernet/EtherCAT cable (Cat.5 or higher) |
| Bus Interface | 8 × RJ45 |
| Data Transfer Rate | 100 Mbit/s |
| Delay | Approx. 1 µs per port |
| Supply Voltage | 24 VDC (18–30 VDC) |
| Current Consumption | 185 mA (typ.), 140 mA from HW version 08 |
| Distributed Clocks | Yes |
| Mounting | 35 mm DIN rail (EN 60715) |
| Dimensions (W × H × D) | 122 × 100 × 38 mm |
| Weight | Approx. 430 g |
| Operating Temperature | -25°C to +60°C (HW08), previously 0°C to +55°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | Up to 95%, non-condensing |
| Protection Class | IP20 |
| Vibration/Shock Resistance | EN 60068-2-6 / EN 60068-2-27 |
| EMC Standards | EN 61000-6-2 / EN 61000-6-4 |
| Approvals | CE, EAC, UKCA, cULus |
Information About CU1128-1005
The CU1128-1005 is a Beckhoff EtherCAT junction device that provides eight RJ45 ports for coupling EtherCAT segments in line, tree, or star topologies. It allows multiple EK1100 couplers or EtherCAT Box modules to be connected simultaneously and includes direct LED indicators for link and activity status. Operating at 100 Mbit/s, it ensures low-latency communication with delays of approximately 1 µs per port. The unit is powered by 24 VDC (18–30 VDC range) and consumes up to 185 mA, with improved efficiency from hardware version 08 onward. Its rugged industrial design includes vibration and shock resistance, EMC compliance to EN 61000-6-2/-6-4, and an IP20 protection class for installation in control cabinets. With support for distributed clocks and hot-connect functionality, the CU1128-1005 is an essential networking module for large and complex EtherCAT automation systems.
Key Features:
-
Eight-port EtherCAT junction: Equipped with 8 RJ45 ports that enable the creation of complex EtherCAT topologies such as line, tree, and star without requiring multiple couplers.
-
Hot-connect functionality: Allows EtherCAT segments to be coupled or uncoupled during live operation, supporting maintenance or system expansion without downtime.
-
Real-time communication performance: Ensures high-speed data transfer at 100 Mbit/s with an ultra-low delay of only 1 microsecond per port, preserving deterministic control cycles.
-
Distributed clock synchronization: Provides precise timing coordination across connected EtherCAT devices, crucial for motion control and time-sensitive automation tasks.
-
Flexible power supply and efficiency: Operates on 24 VDC with a wide tolerance range of 18–30 VDC, consuming only 140–185 mA depending on hardware version.
-
Industrial-grade durability: Designed to withstand mechanical vibration, shock, and electromagnetic interference, ensuring stable performance in harsh industrial environments.
-
Broad environmental adaptability: Functions reliably in ambient temperatures from -25°C to +60°C and stores safely at -40°C to +85°C with 95% non-condensing humidity tolerance.
-
Compact DIN rail mounting: Features a slim 122 × 100 × 38 mm profile with IP20 protection, easily installed in standard control cabinets for space-saving integration.
The CU1128-1005 delivers the reliability and performance required for managing complex EtherCAT networks in industrial automation, ensuring synchronized, flexible, and uninterrupted system operation.
