Name: Allen-Bradley 20-COMM-C PowerFlex ControlNet To DPI Communication Adapter
Availability: InStock

TECHNICAL LEDGER

20-COMM-C Technical Parameter Guide.

Network media, host interface, cyclic data and configuration boundaries for the exact ControlNet adapter.

NETWORK PROTOCOL

ControlNet

NETWORK MEDIUM

Coaxial

HOST INTERFACE

DPI

CHANNEL A CONNECTOR

BNC

NETWORK REVIEW

Treat the drive and ControlNet segment as one project.

Confirm host compatibility, firmware, carrier, node address, channel cabling and controller I/O before exchange.

Channel B connector

Redundant BNC

DPI connector

20-pin male header

Status indicators

Node addressing

Hardware switches / parameter

Cyclic control

Logic Command / Reference

Cyclic feedback

Logic Status / Feedback

Datalink capacity

Up to 4 pairs

Explicit messaging

Supported

Network hierarchy

Master / slave

Fault actions

Communication / idle

Current firmware download

3.001

PowerFlex 750 mounting

Carrier card required

Hardware series

Series A / Series B

Series A firmware

FRN 2.xxx

Series B firmware

FRN 3.xxx

External comms kit

20-XCOMM-DC-BASE

ADAPTER CLASS

Communication

MEDIA

Coaxial ControlNet

HOST PROTOCOL

DPI

LIFECYCLE

Active Mature

COUNTRY OF ORIGIN

Mexico

CONTROL DATA PATH

From ControlNet controller commands to PowerFlex drive feedback.

A functional view of cyclic I/O, parameter messaging and adapter diagnostics.

Cyclic drive control

Controller command and reference data travel through the adapter while drive status and feedback return on the network.

Application Datalinks

Selected host parameters can be added to the scheduled I/O image for application-specific data exchange.

Explicit access

Unscheduled messaging supports parameter and diagnostic access outside the cyclic control path.

HOSTIdentify

FIRMWAREConfirm

NODEAssign

CHANNELSConnect

I/OValidate

MODEL FAQ

Common buyer questions about 20-COMM-C.

Concise answers for a more confident purchasing decision.

QUESTION01

How do the two BNC ports on Allen-Bradley 20-COMM-C support ControlNet media?

Channel A is the primary coaxial connection and Channel B supports redundant media when the network is designed for redundancy; both must follow the installed ControlNet topology.

QUESTION02

What is the difference between scheduled I/O and explicit messaging on Allen-Bradley 20-COMM-C?

Scheduled I/O carries cyclic Logic Command, Reference, Logic Status and Feedback data, while explicit messaging is used for noncyclic parameter and diagnostic access.

QUESTION03

How many Datalinks can Allen-Bradley 20-COMM-C add to the drive data exchange?

The adapter supports up to four Datalink pairs, subject to the compatible DPI host, controller project and selected I/O configuration.

QUESTION04

Which hosts need extra mounting hardware for Allen-Bradley 20-COMM-C?

PowerFlex 750-Series installation requires the appropriate carrier card, while some external DPI applications use the 20-XCOMM-DC-BASE kit; confirm the exact host publication.

QUESTION05

When is 20-750-CNETC a possible alternative to Allen-Bradley 20-COMM-C?

Rockwell recommends 20-750-CNETC where possible for PowerFlex 750-Series drives, but 20-COMM-C is Active Mature and the alternative is not universal across every supported DPI host.

QUESTION06

What must be supplied to quote the correct Allen-Bradley 20-COMM-C revision?

Use publication 20COMM-UM003 and provide the label, Series A or B, firmware revision, host model, carrier or external kit, node configuration, channel wiring, quantity and destination.

USER MANUAL20COMM-UM003

01 · NAMEPLATESeries and firmware

02 · HOSTDrive and carrier

03 · NETWORKNode and channels

OUR PROFESSIONAL TEAM04

Our professional team.

Experienced specialists turn complex sourcing details into clear, practical decisions.

WHAT WE HANDLE

01REVISION REVIEWNameplate and hardware identification

02COMPATIBILITYFirmware and alternative checks

03CONDITION CHECKPhotos, condition and testing details

04DOCUMENTATIONDatasheets and technical literature

05DELIVERYPacking and shipment coordination

06FOLLOW-UPResponsive after-sales communication

ORDER COORDINATION

One team coordinates product identification, quotation, documentation and delivery follow-up.

10+AVERAGE INDUSTRY EXPERIENCE

Nearly 10 Years of Industry Experience

Our team members have an average of more than 10 years of industry experience. We have worked with customers worldwide, including those from India, Germany, Sweden, Italy, Russia, Venezuela, Israel, and many other countries. Throughout our careers, we have collectively completed over 3,000 orders and established long-term business relationships with customers across nearly 30 countries.

Professional Product Judgment

We can often identify a product’s manufacturer, series, configuration, and function from its model number or nameplate photo. We also understand how revisions, firmware, and specifications affect compatibility and whether an alternative model can be used safely.

IN PRACTICEAn Indian customer urgently needed a discontinued control module after several suppliers reported no stock. We identified its exact revision and function from the nameplate, checked compatible alternatives, and contacted factory and warehouse channels to locate matching inventory. After installation, the customer confirmed that the module operated correctly and later asked us to source additional spare parts.

Sincere and Patient Service

Our team treats every inquiry sincerely and answers every question patiently. Even for complex requests, we verify and respond to each detail instead of providing a rushed or uncertain answer.

IN PRACTICEA German customer sent a mixed list of automation products and asked repeated questions about revisions, condition, photos, and delivery. Our team organized the requirements, checked every item, and replied point by point. The customer said our detailed communication made the purchasing decision easier and continued sending us new inquiries.

AFTER-SALES SUPPORT

A clear service path after delivery.

Warranty, documentation and spare-parts support stay connected.

Warranty Support

Most products are covered by a warranty of up to 12 months, subject to the applicable terms and conditions. If any product-related issue occurs during the warranty period, our team will assist you and provide an appropriate solution.

Technical Documentation

Relevant datasheets and technical literature can be provided with the goods, offering useful information for product identification, installation, operation, and maintenance.

Fast Response

We understand the importance of minimizing equipment downtime. Our team responds promptly to inquiries and provides professional assistance with product information, quotations, order status, shipping, and after-sales questions.

Global Customer Service

We serve customers worldwide and provide reliable assistance from inquiry to delivery and after-sales service, ensuring clear and timely communication throughout the process.

Long-term Spare Parts Supply

We continue to source discontinued, obsolete, and hard-to-find automation parts from various brands, helping customers maintain existing equipment and reduce downtime caused by spare parts shortages.

MODEL DIRECTORY

Other automation models.

Provide complete catalog references, nameplates and revision details for accurate sourcing.

SOURCE MIX 01

01DE4161-001

02VZ0008.BD4 VAV-SDZ-K2-L

03EY-IO572F001

04PT100 ICP22JI750000

05Sir88n.a001

06HD251X

07SRD-91

08IRDH275-435

09PR 4114 4501

10AC2410

11Ms-VMA1615-0

12KFDO-HMS-16

13VDE-R9 7014

SOURCE MIX 02

14001-PCOUT-000

150AC808.9-1

16LL-NMIS-204G-SFP

17XD3 XD1033

1841688-01 MOV-175

19AXIS 5800-801

20ASD-PL3-IV

21GDP-CBL-OBD/ETH-01

22AV3116DNv1

23MMK-8L

24216690 HIC2822

25D4S-AV2115DN-3312

26E4 AC-12RC-1

SOURCE MIX 03

27RDK9

28IDS 850 NG851

296MBI300U4-120-01

30UD2A-EDID-S

31FX-PCX1711-0

32CPM500/2V

33ID1ACB0TCA30

341SDA000616R1

35DAC-633E

36453564086631-2 HL-20

37ECC-301

38MF1CTJ0056

39V2000 72000AEP0N0

DIRECT CONTACT

Start inquiry about Allen-Bradley 20-COMM-C.

Include the catalog number, nameplate, revision, installed system, quantity, destination and required delivery date.

SALES MANAGER

May

ab@mooreplc.com

+86-18106909650

Manufacturer	Allen-Bradley
Item number	20-COMM-C
Country of Origin	Mexico
Lead Time	2-3 DAYS
After-Sales Support	For after-sales support, please contact May.
HS Code / Commodity code	Please confirm the destination before shipping.

Allen-Bradley 20-COMM-C PowerFlex ControlNet To DPI Communication Adapter

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