Description

Product Overview

The Allen-Bradley 20-COMM-E serves as a high-performance communication interface module designed for integration with PowerFlex 70 and 700 series variable frequency drives. This adapter enables seamless connectivity between drive hardware and industrial EtherNet/IP networks. By providing a DPI (Drive Peripheral Interface) bridge, the module facilitates real-time data exchange, remote drive monitoring, and advanced system control. It effectively bridges the gap between legacy drive technology and modern, high-speed industrial Ethernet architectures, making it a critical asset for facility automation and system upgrades.

Technical Specifications

• Model Number: 20-COMM-E
• Manufacturer: Rockwell Automation / Allen-Bradley
• Module Function: EtherNet/IP to DPI Gateway
• Network Speeds: 10/100 Mbps (Auto-negotiating)
• Communication Protocols: EtherNet/IP (CIP)
• Maximum Connections: 30 TCP / 16 CIP
• Input/Output Throughput: Up to 400 packets per second
• Operating Temperature: -10°C to 50°C (14°F to 122°F)
• Power Requirements: 350 mA (Supplied by host drive)
• Certifications: UL508C, CAN/CSA, EN
• Dimensions: 78.5 mm x 86 mm x 19 mm

Functional Characteristics

The 20-COMM-E module optimizes drive performance by supporting high-speed I/O packet processing. Because the device maintains a 5ms Requested Packet Interval (RPI), controllers achieve low-latency command execution and feedback loop monitoring. Maintenance teams utilize this module to implement exclusive-owner I/O connections, which ensure secure and predictable drive control across the network.

Furthermore, the module simplifies installation workflows. It draws operating power directly from the host PowerFlex drive, eliminating the need for external power supplies. Once installed, users configure the network parameters through the standard Rockwell Automation software environment. This interoperability ensures that the adapter communicates efficiently with various controller platforms, including ControlLogix, CompactLogix, and legacy PLC-5 or SLC 500 systems.

Industrial Applications

Automation engineers deploy the 20-COMM-E adapter in diverse manufacturing settings that require reliable variable-speed motor control. Its compact footprint allows for integration within space-constrained control panels, while its rugged build quality withstands typical industrial environmental stresses. By incorporating this adapter, organizations successfully modernize their legacy PowerFlex installations to meet Industry 4.0 data visibility requirements without necessitating a complete drive system overhaul.