Allen-Bradley 20-COMM-D Communication Adapter,DPI To DeviceNet,Supports Explicit Mes
$194.99
Out of stock
Request QuoteAllen-Bradley 20-COMM-D — The document is a user manual for the 20-COMM-B BACnet MS/TP adapter (FRN 1.xxx), a DPI-to-BACnet MS/TP communication adapter for PowerFlex 7-Class drives rated at 150 mA at 5 VDC, supporting baud rates of 9600, 19200, 38400, or 76800 bps with configurable MAC address (0–127) and Device Instance Number (0–4194302).
| Product | 20-COMM-B BACnet MS/TP Adapter |
| Firmware Release | FRN 1.xxx |
| Network Protocol | BACnet MS/TP |
| Baud Rates Supported | 9600, 19200, 38400, 76800 bps |
| Power Consumption | 150 mA at 5 VDC |
| MAC Address Range | 0–127 |
PLC Exchange is not an authorized distributor: Original Packaging is synonymous with Used Surplus. See Original Packaging or Warranty for more information.
Description
Allen-Bradley 20-COMM-D
The document is a user manual for the 20-COMM-B BACnet MS/TP adapter (FRN 1.xxx), a DPI-to-BACnet MS/TP communication adapter for PowerFlex 7-Class drives rated at 150 mA at 5 VDC, supporting baud rates of 9600, 19200, 38400, or 76800 bps with configurable MAC address (0–127) and Device Instance Number (0–4194302).
| Product Overview | |
|---|---|
| Model Number | 20-COMM-B |
| Product Name | BACnet MS/TP Adapter |
| Firmware Revision | 1.001 |
| Application Software Version | 3.003 |
| BACnet Protocol Revision | 2 |
| Compatible Drives | PowerFlex 70 (Std. & Enhanced), PowerFlex 700 (Std. & Vector), PowerFlex 700 Series B (Std. & Vector), PowerFlex 700H |
| Optional Use | DPI External Comms Kit (20-XCOMM-DC-BASE) |
| Communications Specifications | |
|---|---|
| Network Protocol | BACnet MS/TP |
| Supported Baud Rates | 9600, 19200, 38400, 76800 baud |
| Drive Protocol | DPI (Drive Peripheral Interface) |
| DPI Data Rates | 125 kbps or 500 kbps |
| Baud Rate Configuration | Autobaud (default) or fixed baud rate via Parameter 06 |
| Baud Rate Detection | Parameter 07 displays actual baud rate used |
| Electrical Specifications | |
|---|---|
| Power Consumption (Drive) | 150 mA at 5 VDC |
| Power Consumption (Network) | None |
| Power Source | Connected drive (5 VDC supply) |
| Mechanical Specifications | |
|---|---|
| Height | 19 mm (0.75 in.) |
| Length | 86 mm (3.39 in.) |
| Width | 78.5 mm (3.09 in.) |
| Weight | 85 g (3 oz.) |
| Mounting | Adapter mounts in PowerFlex 7-Class drive via DPI port; Captive screws secure and ground adapter (recommended torque: 0.9 N·m / 8.0 lb.-in.) |
| Environmental Specifications | |
|---|---|
| Operating Temperature | -10 to 50°C (14 to 122°F) |
| Storage Temperature | -40 to 85°C (-40 to 185°F) |
| Relative Humidity | 5 to 95% non-condensing |
| Atmosphere | Must not contain volatile or corrosive gas, vapors, or dust; if stored, must be in area protected from corrosive atmosphere |
| Adapter Parameters & Configuration | |
|---|---|
| Parameter 01 – Reset Module | 0 = Ready (default), 1 = Reset Module, 2 = Set Defaults |
| Parameter 02 – Comm Loss Action | 0 = Fault (default), 1 = Stop, 2 = Zero Data, 3 = Hold Last, 4 = Send Flt Cfg |
| Parameter 03 – Comm Loss Time | 0–180 seconds (default: 10 seconds); 0 = disabled |
| Parameter 04 – Flt Cfg Logic | 16-bit Logic Command value sent on fault (default: 0000 0000 0000 0000) |
| Parameter 05 – Flt Cfg Ref | 32-bit Reference value sent on fault (default: 0; range: 0–4294967295) |
| Parameter 06 – Baud Rate Cfg | 0 = Autobaud (default), 1 = 9600, 2 = 19200, 3 = 38400, 4 = 76800 kbps |
| Parameter 07 – Baud Rate Act | Read-only; displays actual baud rate (0 = Unknown if autobaud not yet detected) |
| Parameter 08 – MAC Address | Read-only; displays MAC address set by switches SW1–SW7 (range: 0–127) |
| Parameter 09 – Max Master | Default: 127 (range: 0–127) |
| Parameter 10 – Max Info Frames | Default: 1 (range: 1–255) |
| Parameter 11 – Device Instance | Default: 160000 (range: 0–4194302); must be unique per device on network |
| BACnet Objects Supported | |
|---|---|
| Analog Input (AI) | AI0 (Analog Input 1 %), AI1 (Analog Input 2 %) |
| Analog Output (AO) | AO0 (Analog Output 1 %), AO1 (Analog Output 2 %) |
| Analog Value (AV) | AV0–AV1 (Reference 1–2), AV2–AV10 (Output frequency, current, voltage, power, energy, DC bus voltage, drive temp, PID feedback, PID error), AV11–AV18 (Run time, fault codes, accel/decel time, mailbox parameter/value) |
| Binary Input (BI) | BI0–BI5, BI10–BI12 (Digital inputs 1–6, digital outputs actual 1–3) |
| Binary Output (BO) | BO0–BO2 (Digital output commands 1–3) |
| Binary Value (BV) | BV0–BV5 (Ready, Running, Running Reverse, Fault, Alarm, At Reference), BV10–BV13 (Run/Stop, Rev/Fwd, Ref2/Ref1, Clear Faults) |
| DPI & Network Interface | |
|---|---|
| DPI Connector Type | 20-pin single-row shrouded male header |
| Internal Interface Cables | 2.54 cm (1 in.) and 15.24 cm (6 in.) options supplied |
| Network Terminal Block | 3-pin terminal block with mating 3-pin linear plug |
| Network Cable | Shielded, twisted-pair required; shield connected to SHLD terminal, signal pair to +B and -A |
| Termination & Bias Switches | TERM (SW1), -BIAS (SW2), +BIAS (SW3) for network optimization; default all OFF (Up position) |
| MAC Address Switches | SW1–SW7 for setting unique address (0–127); SW8 reserved for future use |
| Status Indicators & Diagnostics | |
|---|---|
| PORT Indicator | DPI connection status (Off = no power/not connected, Flashing Red = no ping, Solid Red = drive refused I/O, Orange = non-DPI device, Flashing Green = establishing connection, Solid Green = normal operation) |
| MOD Indicator | Adapter status (Off = no power, Flashing Red = firmware failure, Flashing Green = operational no I/O, Solid Green = operational & transferring I/O) |
| NET A Indicator | Serial communication status (Off = not powered/no connection, Flashing Red = network timeout, Flashing Green = communicating on network) |
| NET B Indicator | Serial communication traffic (Off = idle/not powered, Flashing Green = transmitting on network) |
| Diagnostic Items | 21 device items available via HIM, DriveExplorer, or DriveExecutive (DPI CAN counters, BACnet packet counters, MAC address, baud rate, port info) |
| Event Queue | 35 event codes logged (e.g., Normal Startup, DPI Bus Off, Network Faults, firmware updates) |
| Regulatory Compliance & Certifications | |
|---|---|
| BACnet | BTL (BACnet Testing Laboratories) approval pending |
| UL | UL508C |
| cUL | CAN/CSA C22.2 No. 14-M91 |
| CE | EN50178 and EN61800-3 |
| CTick | EN61800-3 |
| Category | C2 per IEC 61800-3 (may cause radio interference in domestic environments) |
| Configuration & Commissioning | |
|---|---|
| MAC Address Setting | Set via SW1–SW7 before power-on (default: 0); each network node must have unique address (0–127) |
| Termination/Bias Setting | TERM/±BIAS switches (SW1–SW3) set per network node position (starting/ending nodes: Down/On; other nodes: Up/Off) |
| Device Instance | Set via Parameter 11; must be unique per device (default: 160000; range: 0–4194302) |
| Adapter Reset | Set Parameter 01 to 1 (Reset Module) or cycle power; reset required for baud rate, MAC address, and Device Instance changes |
| Drive Configuration | Drive Parameter 090 set to 22 (DPI Port 5) for speed reference; Parameter 213 verifies reference source; Parameter 002 monitors commanded speed |
PLC Exchange Original Packaging is synonymous with Used Surplus. Because we are not an authorized distributor, we are not legally allowed to claim these items as “New”, “Factory Sealed”, or any other term that may imply such. We have over 10 years of experience working with trusted suppliers to make sure you receive the top-quality hardware you need. Used Surplus items ship in their original packaging, with the same function and contents as OEM-supplied materials. PLC Exchange is an independent supplier of industrial automation products and is not affiliated with the brand manufacturer or any of its authorized distributors. All warranties are provided directly by PLC Exchange. Trademarks, logos, and brand names referenced are property of their respective owners and are used for descriptive identification only.
Disclaimer: PLC Exchange is an independent reseller and is not an authorized distributor, affiliate, licensee, partner, or agent of Allen-Bradley / Rockwell Automation. All product information on this page is compiled from publicly-available manufacturer publications, technical data sheets, and catalog sources, each of which remains the copyright of its originating manufacturer. We make no representation or warranty, express or implied, regarding the accuracy, completeness, timeliness, or fitness for any particular purpose of the specifications or descriptions shown — content may contain errors, omissions, or out-of-date information. Product images are the property of their respective manufacturers, trademark owners, and source publications, and are displayed solely for identification purposes under the nominative fair use doctrine; images are representative and may depict a different configuration or catalog variant than the exact product listed. Purchasers should independently verify specifications against the current manufacturer publication before placing an order. All product names, trademarks, service marks, and registered trademarks are the property of their respective owners, and their use does not imply endorsement or affiliation.
Technical Notes for 20-COMM-D
- Refer to the manufacturer's installation instructions for proper mounting, wiring, and configuration.
- Ensure compatibility with your existing system architecture before ordering.
- All 20-COMM-D units sold by PLC Exchange are tested and ship in original factory packaging.
- For application-specific questions or system compatibility verification, contact PLC Exchange technical support at [email protected] or 980-202-0882.
Alternative Part Numbers & Names for 20-COMM-D
The 20-COMM-D by Allen-Bradley may also be found under the following alternative names, catalog numbers, or common search variations:
- 20COMMD
- Allen Bradley 20-COMM-D
- Allen-Bradley 20-COMM-D
- 20 COMM D
All variations refer to the same Allen-Bradley product. If you are unsure whether this is the correct part for your application, contact our team for assistance.
Additional information
| Weight | 0.19 lbs |
|---|---|
| Dimensions | 3.4 × 3.1 × 0.7 in |
| warranty | 2.5 Year PLC Exchange Warranty, 30 Days worry-free return from delivery |
| upc | 662453737911 |
| mpn | 20-COMM-D |
| manufacturer | Allen-Bradley |
| condition | Original Packaging |
Dimensions & Weight for 20-COMM-D
| Shipping Dimensions | |
|---|---|
| Weight | 0.19 lbs |
| Length | 3.4 in |
| Width | 3.1 in |
| Height | 0.7 in |
| Box Dimensions (L×W×H) | 3.4 × 3.1 × 0.7 in |
Dimensions shown are for the shipping package. For module-level mechanical dimensions, refer to the manufacturer datasheet.
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Frequently Asked Questions
Where can I find the technical datasheet for the 20-COMM-D?
The official manufacturer datasheet is available for download on the 20-COMM-D product page at PLC Exchange. Look for the Tech Data PDF link in the product description.
Does the 20-COMM-D include a warranty?
Yes. Every 20-COMM-D sold by PLC Exchange includes a 2.5-year warranty (30 months, full replacement). Details: https://plcexchange.net/warranty-information/
What is the return policy for the 20-COMM-D?
PLC Exchange offers a 30-day worry-free return policy. Eligibility and details: https://plcexchange.net/return-policy/
When will my 20-COMM-D ship?
In-stock orders placed before 4 PM ET ship the same business day via free UPS Ground. Expedited options (Next Day Air, 2nd Day Air) are available at checkout.
Who manufactures the 20-COMM-D?
The 20-COMM-D is manufactured by Allen-Bradley. PLC Exchange is an independent reseller specializing in Allen-Bradley industrial automation products.
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