20-COMM-M
PublishedModbus Communication Adapter
Allen-BradleyControl Systems (PLC & DCS)Communication ModuleIndustrial supply
The Allen-Bradley 20-COMM-M is a Modbus RTU communication adapter for PowerFlex AC drives over an isolated RS-485 port. Compatible with PowerFlex 4/40/400/70/700 drives; powered from the host drive; drive-based parameter configuration.
Wholesale supply20-COMM-M
No public pricingPriced per agreement on volume and market. Send your quantities — Kaysan replies with availability and wholesale terms.
Product identity6 fields
Item nameModbus Communication Adapter
Item number / code20-COMM-M
BrandAllen-Bradley
Product lineIndustrial supply
CategoryControl Systems (PLC & DCS)
Product typeCommunication Module
Technical data11 rows
Baud RateAdjustable communication speeds
Compatible DrivesPowerFlex 4/40/400/70/700 and other selected PowerFlex models
ConfigurationDrive‑based parameter setup
DiagnosticsLED indicators for quick troubleshooting
Drive Parameter AccessSupports reading and writing of drive parameters
Easy SetupParameter‑driven configuration through the drive interface
Flexible Baud RatesAdaptable to various network speeds
Modbus RTU ConnectivityEnables full integration of PowerFlex drives into Modbus‑based control systems
MountingInternal drive‑mounted communication module
Network InterfaceIsolated RS‑485 port
Power RequirementsPowered directly from the host drive
Reference numbers1 public
Allen-Bradley20-COMM-M