Allen-Bradley 20-COMM-ER EtherNet Communications Adapter

The Allen-Bradley 20-COMM-ER EtherNet/IP adapter is a dual-port communications module designed to provide EtherNet/IP connectivity for PowerFlex 7-Class drives. It functions as a dedicated Ethernet/IP adapter within the PowerFlex family, enabling drive-to-PLC messaging, status reporting, and parameter exchange over standard Ethernet networks. The 20-COMM-ER is described as a dual-port Ethernet/IP adapter communications module for PowerFlex 7-Class, supporting multiple network paths and straightforward integration with Rockwell Automation control systems. In typical industrial setups, it connects a PowerFlex 7-Class drive to a ControlLogix or CompactLogix controller network, feeding real-time drive data to the PLC while allowing commissioning and diagnostics to occur over the same Ethernet infrastructure. This module is intended specifically for PowerFlex 7-Class applications and forms part of the PowerFlex Ethernet/IP communications architecture, delivering reliable, vendor-supported connectivity for automated equipment on factory floors.