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Allen Bradley 20-COMM-ER PowerFlex EtherNet/IP Dual Port Communication Adapter
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Product Introduction
The Allen-Bradley 20-COMM-ER PowerFlex EtherNet/IP Dual Port Communication Adapter is a high-performance communication interface designed for SMC and PowerFlex 7-class drive systems. It enables seamless integration of drives into EtherNet/IP industrial networks, supporting advanced control, monitoring, and diagnostics functions.
This adapter features a dual-port Ethernet design, allowing it to operate as an embedded switch within the network. It supports flexible network topologies such as star and linear (daisy-chain), reducing the need for external Ethernet switches and simplifying system wiring.
The 20-COMM-ER converts internal drive communication via DPI (Drive Peripheral Interface) into EtherNet/IP protocol, ensuring real-time data exchange with PLC systems. Its compact design allows direct installation onto compatible drives, making it an efficient solution for upgrading communication capabilities in industrial automation systems.
Product Specifications
| Parameter | Description |
|---|---|
| Product Model | 20-COMM-ER |
| Manufacturer | Rockwell Automation (Allen-Bradley) |
| Product Type | Dual-port EtherNet/IP communication adapter |
| Compatible Systems | SMC / PowerFlex 7-class drives |
| Communication Protocol | EtherNet/IP (DPI to Ethernet) |
| Ethernet Ports | Dual-port (integrated switch) |
| Ethernet Speed | 10/100 Mbps |
| Supply Voltage | 5 VDC |
| Function | Drive communication interface module |
| Network Topology Support | Star, Linear (daisy-chain) |
| Mounting Type | Drive-mounted adapter |
| Functionality | Real-time control, monitoring, diagnostics |
| Dimensions | 86 × 19 × 78.5 mm |
| Weight | 0.085 kg |
Applications
● Industrial Ethernet drive integration
Enables SMC and PowerFlex 7-class drives to connect to EtherNet/IP automation networks.
● Distributed control systems
Supports multi-drive systems where several devices are connected in linear or star network configurations.
● Manufacturing automation lines
Used in production environments requiring coordinated motor control and centralized monitoring.
● System upgrade and modernization
Provides a pathway to upgrade legacy drive systems to Ethernet-based communication architectures.
● Industrial motion and process control
Facilitates real-time communication between PLCs and drives in automation systems.
Advantages
● Dual-port Ethernet functionality
Acts as an embedded switch, allowing daisy-chain connections without external networking hardware.
● Flexible network topology support
Supports star and linear configurations, simplifying network design.
● Seamless DPI to EtherNet/IP conversion
Enables efficient communication between internal drive systems and Ethernet networks.
● Compact and easy installation
Direct mounting on drives reduces wiring complexity and saves cabinet space.
● Reliable industrial communication
Provides stable and deterministic data exchange for automation control.
● Cost-effective system expansion
Reduces the need for additional switches and network components.
FAQ
- What is the main function of the 20-COMM-ER adapter?
It enables SMC and PowerFlex 7-class drives to communicate over EtherNet/IP networks, supporting real-time control and monitoring. - What is the benefit of dual Ethernet ports?
Dual ports allow the module to act as a switch, enabling daisy-chain connections and reducing the need for external Ethernet switches. - What network topologies are supported?
It supports star and linear (daisy-chain) network configurations, offering flexibility in system design. - What is DPI in this module?
DPI is the internal drive communication interface that the adapter converts into EtherNet/IP protocol. - Is this module compatible with all PowerFlex drives?
It is designed for PowerFlex 7-class drives and SMC systems, not all PowerFlex models. - How is the module powered?
It uses a 5 VDC supply from the drive, ensuring efficient operation with minimal power consumption. - Does it support real-time communication?
Yes, it provides deterministic communication suitable for industrial automation and motion control. - What happens if one Ethernet port fails?
Depending on the network configuration, communication may be interrupted or rerouted if redundancy is implemented externally. - Is configuration required after installation?
Yes, IP addressing and network parameters must be configured to integrate into the control system. - What is the main advantage over single-port adapters?
The dual-port design simplifies wiring, reduces hardware requirements, and improves network flexibility.
Related Models
| Model | Description | Key Feature |
|---|---|---|
| 20-COMM-E | EtherNet/IP adapter | Single-port Ethernet |
| 20-COMM-D | ControlNet adapter | Deterministic fieldbus |
| 20-COMM-DP | Profibus adapter | Profibus DP integration |
| 20-COMM-DR | DeviceNet adapter | Device-level network |
| 20-COMM-R | Remote I/O adapter | Legacy I/O interface |
| 20-COMM-IO | I/O module | General communication interface |
Popular Models
| Model | Description | Key Feature |
|---|---|---|
| 20F11ND014AA0NNNNN | PowerFlex 753 drive | Industrial motor control |
| 20G11NC072JA0NNNNN | PowerFlex 755 drive | Advanced drive platform |
| 1756-L81E | ControlLogix controller | PLC automation system |
| 1756-EN2T | Ethernet module | High-speed networking |
| 1769-L33ER | CompactLogix controller | Integrated automation |
| 1734-IB8 | POINT I/O module | Compact input solution |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.
As for the delivery time, when we receive your order requirements, we will arrange for warehouse personnel to test and verify the products. After you place the order, we will send it to you within 24 hours.
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