OVERVIEW

Official designation: Allen-Bradley 22-COMM-M (PowerFlex 4-Class, Modbus RTU Communication Adapter)

Role/Application: DSI-based adapter providing Modbus RTU (RS-485) network connectivity for PowerFlex 4-Class drives, facilitating reliable, low-speed data exchange.

KEY SPECS SUMMARY

Power: 5V DC, 350 mA (supplied by host drive)

Interfaces / Ports: One RS-485, one 20-pin DSI connector

Indicators: LEDs for Module, Network, and Comms Status (Four LEDs)

Operating Temp: Minus 10 degrees C to plus 50 degrees C

Platform / Compatibility: PowerFlex 4, 4M, 40, 400, and 400 drives

Limit: 5 percent to 95 percent relative humidity non-condensing

Lifecycle: Refer to the latest manufacturer manual.

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the range of supported serial communication data rates for this adapter?

A: The adapter supports configurable serial baud rates from 1.2 kbps up to 115.2 kbps.

Wiring & Installation:

Q: How is the node address for the Modbus RTU network configured on the adapter?

A: The node address is set using the onboard DIP switches located on the adapter module.

Troubleshooting & Compatibility:

Q: What action should be taken if the adapter status LED shows an abnormal state?

A: Check the adapter's DIP switch settings and the host drive's parameter configuration.

Replacement & Upgrades:

Q: Can this adapter operate in a Multi-Drive mode to control multiple drives on one node?

A: Yes, it supports a Multi-Drive mode allowing up to five compatible drives on a single node.