Allen-Bradley 20-750-ENETR Dual Port EtherNet/IP Option Module | Replacement, Equivalent & Selection Guide
The Allen-Bradley 20-750-ENETR is a Dual Port EtherNet/IP Option Module designed for the PowerFlex 750-Series AC drives. It enables seamless integration of PowerFlex 750 drives into EtherNet/IP-based control networks, supporting Device Level Ring (DLR) topology for high-availability industrial automation systems. Konmask.com supplies genuine and compatible 20-750-ENETR modules with full traceability and quality assurance.
Technical Specifications
- Part Number: 20-750-ENETR
- Manufacturer: Allen-Bradley / Rockwell Automation
- Series: PowerFlex 750 Option Module
- Communication Protocol: EtherNet/IP (CIP)
- Ports: 2 × RJ45 (Dual Port, supports DLR)
- Topology Support: Linear, Star, Device Level Ring (DLR)
- Data Rate: 10/100 Mbps, Auto-negotiate, Full/Half Duplex
- IP Address Assignment: BOOTP, DHCP, or Static
- Compatible Drives: PowerFlex 753, PowerFlex 755, PowerFlex 755T
- Slot Type: Peripheral Option Module (Port 4–6)
- Operating Temperature: 0°C to 50°C (32°F to 122°F)
- Storage Temperature: -40°C to 85°C
- Humidity: 5–95% non-condensing
- Weight: Approx. 80 g
- Certifications: CE, UL, cUL, RCM
Compatible Replacement & Equivalent Models
When sourcing a replacement for the 20-750-ENETR, the following models are functionally equivalent or compatible depending on your drive series and network requirements:
- 20-750-ENETR — Original dual-port DLR-capable module (recommended)
- 20-750-ENET — Single-port EtherNet/IP module; no DLR support; suitable for star/linear topologies only
- 20-750-DNET — DeviceNet option module; not EtherNet/IP compatible; for legacy DeviceNet networks
- 20-750-PNET — PROFINET IO option module; equivalent function on PROFINET networks
- 20-750-S3 — Safe Speed Monitor option; different function, not a network comms replacement
- 20-HIM-A6 — Human Interface Module; complementary, not a replacement
Note: Always verify firmware compatibility between the option module and the host drive before substitution. Contact Konmask.com for cross-reference assistance.
Why Choose the Original 20-750-ENETR
- DLR Support: Only the dual-port ENETR supports Device Level Ring topology, providing network redundancy without additional switches.
- Seamless Integration: Native EtherNet/IP (CIP) protocol ensures plug-and-play compatibility with Rockwell Studio 5000 / RSLogix 5000 environments.
- Reduced Wiring Cost: Daisy-chain capability eliminates the need for managed switches in ring topologies.
- Future-Proof: Supports iTRAK, Kinetix, and other CIP Motion devices on the same network segment.
- Genuine Traceability: Konmask.com sources from authorized channels with full lot traceability and warranty.
Typical Applications
- Variable frequency drive (VFD) network integration in manufacturing lines
- SCADA and DCS connectivity for PowerFlex 750-series drives
- High-availability DLR ring networks in automotive, food & beverage, and packaging plants
- PLC-to-drive communication via Allen-Bradley ControlLogix / CompactLogix controllers
- Remote monitoring and parameter configuration over EtherNet/IP
- Multi-drive daisy-chain installations in conveyor and pump systems
System Compatibility
- Compatible Drives: PowerFlex 753 (v4.001+), PowerFlex 755 (v4.001+), PowerFlex 755T
- Compatible Controllers: ControlLogix L7x/L8x, CompactLogix L3x/L4x/L5x, GuardLogix
- Software: Studio 5000 Logix Designer v21+, RSLogix 5000 v20+
- EDS File: Available from Rockwell Automation Product Compatibility & Download Center (PCDC)
- Firmware: Module firmware updatable via ControlFLASH or Studio 5000
Selection Guide
Use the table below to select the correct EtherNet/IP option module for your PowerFlex 750 application:
- Need DLR ring topology? → Select 20-750-ENETR (dual port)
- Star or linear topology only? → 20-750-ENET (single port, lower cost)
- PROFINET network? → 20-750-PNET
- DeviceNet legacy system? → 20-750-DNET
- PowerFlex 523/525 drives? → These use a different module family (25-COMM-E2P); 20-750-ENETR is not compatible
- Multiple modules needed? → PowerFlex 755 supports up to 3 peripheral option modules simultaneously
Quality Assurance & Sourcing
- All 20-750-ENETR units supplied by Konmask.com undergo incoming inspection including visual, label, and functional verification.
- Sourced from authorized distributors and OEM surplus channels with full documentation.
- Anti-counterfeit measures: holographic labels, date code verification, and packaging integrity checks.
- Warranty: 12 months from date of shipment against manufacturing defects.
- Export compliance: ECCN EAR99; no export license required for most destinations.
How to Order
- Part Number: 20-750-ENETR
- Minimum Order: 1 unit
- Lead Time: In-stock items ship within 1–3 business days; contact us for bulk orders
- Payment: T/T, PayPal, credit card, and trade terms available for qualified accounts
- Shipping: DHL, FedEx, UPS worldwide; sea freight available for large orders
- Request a Quote: Email support@konmask.com or call +0086 19859288691
Replacement & Compatibility FAQ
Q: Can the 20-750-ENETR replace the 20-750-ENET?
A: Yes. The 20-750-ENETR is a direct upgrade — it adds DLR support while retaining full backward compatibility with single-port star/linear topologies.
Q: Is the 20-750-ENETR compatible with PowerFlex 523 or 525?
A: No. PowerFlex 520-series drives use a separate communication adapter family (25-COMM-x). The 20-750-ENETR is exclusively for PowerFlex 750-series.
Q: Do I need to update drive firmware before installing the 20-750-ENETR?
A: Recommended. Ensure the PowerFlex 753/755 drive firmware is v4.001 or later for full feature support. Use ControlFLASH for firmware updates.
Q: Can I use two 20-750-ENETR modules in one drive?
A: No. Only one EtherNet/IP option module is supported per drive. However, you can combine it with other option types (e.g., Safe Speed Monitor) in other slots.
Q: What is the difference between 20-750-ENETR and 20-750-ENETR-NR?
A: The NR suffix denotes a non-redundant or region-specific variant. Verify the exact catalog number with your regional Rockwell distributor or contact Konmask.com.
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