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20-COMM-M Allen-Bradley

Original price $825.00 - Original price $2,700.00
Original price
$825.00
$825.00 - $2,700.00
Current price $825.00
Surplus - Tested (With Warranty)
Need a Specific Revision?
$825.00
2 in stock
New / Open-Box Surplus
Need a Specific Revision?
$2,700.00
2 in stock
Ships today if ordered by 1 PM CST
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Product Details

Description · Specifications · Product Overview

Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.

Product Overview

The 20-COMM-M is an Allen-Bradley PowerFlex Architecture Class DPI Modbus/TCP communication adapter for PowerFlex 7-Class and 750-Series drives. Installed into the drive's DPI communication slot (requires a carrier card for 750-Series), it enables Modbus/TCP and CIP messaging over Ethernet. Typical applications include integration of drives into Modbus/TCP networks, remote diagnostics, and parameter control via Modbus masters or CIP controllers.

Best Suited For

  • Modbus/TCP network integration of PowerFlex drives
  • Remote parameter access via web page or CIP messaging
  • Multi-drive control via Ethernet
  • Integration into industrial Ethernet systems
Communication protocols
Modbus/TCP, DPI (CIP)
TCP connections
Up to 30
Data rates (Ethernet)
10 Mbps / 100 Mbps (half/full duplex)
Host drive supply
350 mA @ 5 V DC
Operating temperature
10…50 °C (14…122 °F)

Technical Specifications

I/O & Electrical

Drive electrical consumption
350 mA @ 5 V DC (supplied by host drive)

Communication & Power

Communication protocols
Modbus/TCP; DPI (CIP)
Ethernet data rates
10 Mbps half/full-duplex; 100 Mbps half/full-duplex
Max TCP connections
30
Min RPI
5 ms

Physical & Environmental

Compatible drives
PowerFlex 70, 700, 700H, 700S, 700L, 750, Digital AC drives, DPI external kits, SMC Flex, SMC-50
LED indicators
Four (DPI, adapter, network)
Connectors
One 20-pin DPI header; one RJ-45
Operating temperature
10…50 °C (14…122 °F)
Storage temperature
-40…85 °C (-40…185 °F)
Relative humidity
5…95 % non-condensing
Enclosure rating
Panel Mount - IP 20, NEMA/UL Type 1
Weight
≈ 1.00 lbs (0.45 kg)

1-Year Warranty

Every tested unit is backed by our free 1-year PLC Department warranty, direct from us.

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Free ground shipping. Orders by 1 PM CST ship same-day, with overnight available.

USA Stock

Sourced and shipped from Texas, USA. Never anonymous overseas marketplace stock.

30-Day Returns

Hassle-free RMA. If the part is not right for your application, send it back within 30 days.

Reseller Options

Resellers welcome. Reach out for volume pricing and we will get you set up.

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Rockwell Automation documentation

Access official manuals, datasheets, and lifecycle information for this part directly from Rockwell Automation.

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Must Read: Disclaimer

PLC Department sells surplus and refurbished industrial automation products, including but not limited to programmable logic controllers (PLCs), which are sourced exclusively through independent third-party channels. PLC Department is not an authorized distributor, reseller, or representative of any manufacturer listed on this website, including Rockwell Automation or its Allen-Bradley brand. All product warranties, where offered, are provided solely by PLC Department and not by the original manufacturer.

Any reference to manufacturer names, logos, trademarks, or product identifiers is for identification and compatibility purposes only. All such trademarks and brand names are the property of their respective owners, and this website is not affiliated with, endorsed by, or approved by any manufacturer referenced herein.

The products offered for sale may be used or surplus and may contain older date codes, be of earlier series or versions, or differ in appearance or features compared to products available through factory-authorized distribution channels. The presence, version, or functionality of firmware, if any, on programmable devices such as Allen-Bradley PLCs is not guaranteed. PLC Department makes no representation or warranty regarding:

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