Product Details
Product Overview
The Allen Bradley 20-COMM-M serves as a high-performance communication interface that bridges the gap between Drive Peripheral Interface (DPI™) enabled PowerFlex® AC drives and Modbus/TCP networks. This adapter allows for seamless integration of motor control hardware into standard Ethernet-based industrial environments. We provide this unit as 100% brand new and original, ensuring verified compatibility and zero-latency data transmission for your drive control architecture.
Technical Specifications
The 20-COMM-M utilizes an internal mounting design to streamline drive cabinet organization:
| Feature | Specification |
| Protocol | Modbus/TCP (Ethernet) |
| Interface Type | DPI to Modbus/TCP |
| Drive Compatibility | PowerFlex 7-Class (PowerFlex 70, 700, 700S, etc.) |
| Mounting | Internal (Drive Mount) |
| Data Rate | 10/100 Mbps |
| Category | Drives Interface / Communication |
| Net Weight | 0.96 lbs (0.44 kg) |
| Input Power | Sourced via Drive DPI Port |
Engineering Advantages
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Native Modbus/TCP Integration: The 20-COMM-M enables PowerFlex drives to communicate directly with non-Rockwell PLCs and SCADA systems that utilize the Modbus/TCP protocol. This eliminates the need for expensive third-party gateways.
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Internal Mounting Space Efficiency: The adapter mounts directly inside the drive’s communication slot. This internal placement saves valuable DIN rail space and protects the module from external environmental contaminants.
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Real-Time Diagnostics: The module facilitates the high-speed transfer of drive parameters, including output frequency, current, and fault codes. Operators gain real-time visibility into motor performance, allowing for proactive maintenance before mechanical failures occur.
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Simplified Configuration: The 20-COMM-M supports standard Ethernet cabling (RJ45), which simplifies the physical layer of the network. Engineers configure the adapter through drive tools or standard web browsers, reducing commissioning time.
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Robust Data Isolation: The hardware design ensures electrical isolation between the drive’s internal power circuits and the Ethernet network, preventing electrical noise from interfering with plant-wide communications.
FAQs
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Which PowerFlex drives support the 20-COMM-M?
The 20-COMM-M primarily supports Allen Bradley PowerFlex 7-Class drives, such as the PowerFlex 70, PowerFlex 700, and PowerFlex 700S. Always verify your drive's firmware version to ensure full feature compatibility.
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Does this unit require an external power supply?
No. The 20-COMM-M draws its operating power directly from the drive's internal DPI port. This simplifies wiring and reduces the risk of power-related communication drops.
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Is this a genuine Allen Bradley original product?
Absolutely. We ship only 100% brand new, factory-original Allen Bradley 20-COMM-M adapters. Each unit arrives in its original manufacturer packaging to meet strict E-E-A-T industrial procurement standards.
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What is the primary function of the DPI interface on this module?
The DPI (Drive Peripheral Interface) acts as the high-speed serial link between the drive’s internal microprocessor and the 20-COMM-M. It ensures that control commands and status updates move between the network and the drive with minimal jitter.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Understanding Marshalling Cabinets in Industrial Control Systems Architecture
Industrial control system deployments rely on structured signal distribution to bridge field instrumentation with central processing hardware. A marshalling cabinet serves as the vital intermediate connection point between heavy field home-run multi-pair cables and delicate input/output (I/O) modules housed inside Programmable Logic Controller (PLC) or Distributed Control System (DCS) enclosures. By segregating field cable terminations from control hardware, engineers maintain system flexibility, safeguard controller components, and streamline commissioning workflows.
FAT vs SAT in Industrial Control Systems: Key Differences and Execution Guide
Industrial control system deployment relies on strict verification protocols to guarantee operational safety, system stability, and regulatory compliance. Commissioning complex Programmable Logic Controller (PLC) racks, Distributed Control Systems (DCS), and Safety Instrumented Systems (SIS) requires two critical milestones: the Factory Acceptance Test (FAT) and the Site Acceptance Test (SAT). Both procedures validate that system automation meets design specifications, but they occur at different stages of project execution and target distinct operational risks.
Hub vs Switch vs Router in Industrial Automation Architecture
Modern factory automation relies on reliable industrial networking infrastructure to exchange real-time field data across operational technology systems. Engineers often encounter networking hardware like hubs, switches, and routers when integrating Programmable Logic Controllers, Distributed Control Systems, and SCADA monitoring nodes. Although these devices share physical ports, they operate at different layers of the Open Systems Interconnection reference model and deliver distinct traffic management capabilities.