Product Details
Product Description
The Allen-Bradley 20-COMM-H communication adapter enables RS-485 HVAC protocol connectivity for PowerFlex drives, providing a reliable and efficient communication bridge between HVAC systems and Rockwell Automation’s PowerFlex family. Designed for seamless integration, it enhances control and monitoring capabilities in industrial and building automation environments.
This module supports multiple PowerFlex models, ensuring compatibility across a range of drive configurations and applications.
Technical Specifications
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Model Number: 20-COMM-H
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Manufacturer: Allen-Bradley (Rockwell Automation)
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Product Type: Communication Adapter
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Communication Interface: RS-485 (HVAC protocol)
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Supported Drive Series:
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PowerFlex 70
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PowerFlex 700 / 700H / 700S / 700L
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PowerFlex 750
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PowerFlex DC Drives
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Network Protocol: HVAC (based on RS-485 serial communication)
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Connection Type: DPI (Drive Peripheral Interface) port connection
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Data Rate: Up to 115.2 kbps
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Configuration Method: Drive keypad, HIM, or DriveExplorer/DriveExecutive software
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Indicators: Status LEDs for power, communication, and network status
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Power Supply: Derived from the connected drive through the DPI port
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Enclosure Type: Open-style, DIN-rail or panel-mounted
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Operating Temperature: 0°C to +55°C (32°F to 131°F)
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Storage Temperature: -40°C to +85°C (-40°F to 185°F)
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Weight: 0.99 lb (0.45 kg)
Key Features
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Provides seamless RS-485 HVAC communication between PowerFlex drives and building automation systems
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Plug-and-play integration using the DPI interface
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Compact and durable design suitable for industrial and HVAC control panels
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Supports parameter access, fault diagnostics, and control commands over the network
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Built-in LED indicators for quick system diagnostics
Application Scenarios
The 20-COMM-H module is commonly used in industrial and commercial building automation where PowerFlex drives must communicate with HVAC controllers or supervisory systems.
Typical applications include:
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HVAC and air-handling systems
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Industrial ventilation and chiller control
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Building management system (BMS) integration
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Energy-efficient fan and pump speed control
FAQ
Q1: Can the 20-COMM-H be used with non-HVAC RS-485 networks?
A1: This module is specifically designed for HVAC RS-485 networks and may not be compatible with generic Modbus RTU applications.
Q2: Is any external power supply required for operation?
A2: No. The module receives its operating power directly from the drive via the DPI connection.
Q3: What software tools support configuration of this adapter?
A3: Configuration and monitoring can be done using DriveExplorer, DriveExecutive, or the PowerFlex HIM module.
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.
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