Allen-Bradley 20-COMM-D/B DeviceNet Communication Adapter
$123.00
$320.00
Description
Allen-Bradley 20-COMM-D/B DeviceNet Communication Adapter
The Allen-Bradley 20-COMM-D/B, also cataloged as the 20-COMM-D DeviceNet Communication Adapter, operates as a dedicated hardware component for DeviceNet network communication within PowerFlex Architecture-class AC drive systems. It provides DPI-based data exchange between AC drives and DeviceNet industrial automation networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 20-COMM-D/B |
| Brand | Allen-Bradley |
| Origin | United States |
| Operating Temp | -10 deg C to +50 deg C |
| Power Consumption | 150 mA at 5 VDC from drive-side DPI interface |
| Network Protocol | DeviceNet with CIP (Common Industrial Protocol) |
| Drive Interface | DPI (Drive Peripheral Interface) |
| Network Data Rates | 125 kbps, 250 kbps, 500 kbps, Autobaud, PGM |
| Drive Data Rates | 125 kbps or 500 kbps |
| Node Address Range | 0 to 63 via rotary switches or software parameters |
| Packet Processing | Up to 400 total I/O packets per second |
| CIP Connections | Up to 16 simultaneous connections including one exclusive-owner I/O connection |
| Network Supply | 24 VDC from DeviceNet bus |
| Certifications | UL 508C, CAN/CSA C22.2 No. 14-M91, CE, C-Tick, ODVA DeviceNet Conformance Tested |
EtherNet/IP and Industrial Drive Communication Features
The 20-COMM-D Series B uses the PowerFlex DPI communication architecture to transfer drive parameters, status information, and control commands through DeviceNet networks. The adapter receives power from the connected drive interface while maintaining DeviceNet bus communication through a separate 24 VDC network supply.
The module supports deterministic industrial communication through CIP messaging and I/O connections. Rotary node address switches allow direct hardware configuration, while parameter-based configuration provides software-controlled addressing and setup functions. The Series B hardware revision includes updated firmware compatibility compared with earlier 20-COMM-D revisions.
The adapter supports backplane bus communication velocity management through the DPI interface, allowing PowerFlex drive systems to exchange operational data without additional external communication hardware. Firmware compatibility should be verified against the connected PowerFlex drive firmware revision before installation.
Frequently Asked Questions
Q: Can the 20-COMM-D Series B be installed as a hot-swappable module while the drive is operating?
A: The adapter is designed for installation within compatible PowerFlex drive assemblies or DPI mounting kits. Power removal and manufacturer-defined installation procedures should be followed before physical connection or removal.
Q: What electrical power sources are required for operation?
A: The adapter receives 5 VDC power from the drive-side DPI interface and draws 24 VDC from the DeviceNet network bus for communication functions.
Q: How is DeviceNet node addressing configured?
A: Node addressing can be configured through rotary hardware switches or software parameters, supporting node addresses from 0 to 63.
Field Installation Guidelines
Install the 20-COMM-D adapter only in compatible PowerFlex drive assemblies or approved external DPI mounting hardware.
Verify that the drive power source is isolated before inserting or removing the communication adapter. Connect DeviceNet wiring according to network topology requirements, maintaining correct polarity and proper cable shielding.
Terminate and ground the DeviceNet shield according to the applicable control system installation standard. Keep DeviceNet communication cables separated from high-current motor power wiring and switching conductors to reduce electromagnetic interference.
Confirm the DeviceNet node address, communication baud rate, and drive DPI communication parameters before placing the drive system into service.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
Featured
Complementary products
Express Delivery
Fast shipping for your urgent needs.
Large Inventory
Extensive stock ensures quick availability.
Premium Quality
Genuine, high-grade PLC & DCS components.
24/7 Customer Support
Reliable service for clients worldwide.