Allen-Bradley 1783-BMS20CGN Managed Ethernet Switch – Stratix 5700 Series
Imagine a critical production line where dozens of PLCs, HMIs, drives, and safety controllers depend on a single network backbone. When that backbone fails — even for seconds — conveyors stop, batch processes abort, and alarms cascade across the facility. Unplanned downtime in industrial environments costs an average of $260,000 per hour. The Allen-Bradley 1783-BMS20CGN is engineered precisely to prevent this scenario: a purpose-built managed Ethernet switch that keeps your industrial network deterministic, resilient, and fully visible to your control system at all times.
Within the Stratix 5700 family — Rockwell Automation’s flagship line of industrial managed switches — the 1783-BMS20CGN occupies the mid-range sweet spot: 18 ports (16 × 10/100 copper + 2 × combo SFP uplinks) in a DIN-rail form factor, with full Layer 2 managed capability and native EtherNet/IP integration via Studio 5000 and RSLogix 5000. Globally, the Stratix 5700 series is the de-facto standard switch for Rockwell-centric control architectures, deployed across automotive, food & beverage, oil & gas, and discrete manufacturing plants in over 80 countries.
Technical Specifications
- Part Number: 1783-BMS20CGN
- Series: Stratix 5700
- Total Ports: 18 (16 × 10/100BASE-TX copper + 2 × combo Gigabit SFP/RJ45 uplinks)
- Switching Capacity: Layer 2 managed
- Protocol Support: EtherNet/IP, PROFINET-compatible, DLR (Device Level Ring), RSTP/STP
- Management: Web GUI, CLI (Cisco IOS-based), SNMP v1/v2c/v3, Studio 5000 Add-On Profile (AOP)
- Power Input: 24 VDC (18–32 VDC range), dual redundant power inputs
- Operating Temperature: 0 °C to +60 °C
- Mounting: DIN rail
- Enclosure Rating: IP30
- Certifications: UL, CE, cUL, ATEX Zone 2 (check nameplate)
- Weight: Approx. 1.7 kg
- Dimensions (H × W × D): Refer to Rockwell publication 1783-UM007
Key Features & Benefits
- Native EtherNet/IP Integration: Configured and monitored directly inside Studio 5000 via AOP — no separate network management tool required for basic operations.
- Device Level Ring (DLR) Support: Enables sub-3 ms ring recovery, eliminating single points of failure in linear topologies without additional hardware.
- Cisco IOS-Based Firmware: Familiar CLI syntax reduces training time for IT/OT convergence teams; supports ACLs, VLANs, QoS, and port security.
- Dual Redundant Power Inputs: 24 VDC dual-feed design ensures the switch stays online even if one power supply fails.
- Combo SFP Uplinks: Two Gigabit combo ports allow fiber or copper uplinks to supervisory networks, supporting star, ring, and linear topologies.
- IGMP Snooping & QoS: Prioritizes time-sensitive EtherNet/IP I/O traffic over background data, maintaining scan-time determinism.
- Compact DIN-Rail Form Factor: Fits inside standard control panels alongside PLCs and I/O modules, minimizing cabinet footprint.
Industry & Equipment Applications
- Automotive Manufacturing: Body-in-white welding cells, paint shop conveyors, and assembly line PLCs requiring deterministic I/O communication.
- Food & Beverage: Hygienic processing lines where network downtime triggers costly product loss and CIP cycle interruptions.
- Oil & Gas: Wellhead RTU networks and pipeline SCADA systems demanding robust temperature tolerance and redundant power.
- Pharmaceutical: Batch manufacturing systems under 21 CFR Part 11 where network audit trails and VLAN segmentation are compliance requirements.
- Water & Wastewater: Remote pump station networks where DLR ring topology provides fault tolerance without fiber infrastructure.
- Discrete Manufacturing: Machine-level networks connecting ControlLogix/CompactLogix PLCs, PowerFlex drives, and PanelView HMIs.
System Integration & Compatible Parts
- Compatible PLCs: ControlLogix (1756 series), CompactLogix (1769 series), MicroLogix 1100/1400 with EtherNet/IP adapter
- Compatible HMIs: PanelView Plus 7 / PanelView 5000 series
- Compatible Drives: PowerFlex 525, 755, 6000 series with EtherNet/IP option card
- Uplink Switches: Stratix 8000 (1783-MS10T) for supervisory layer aggregation
- SFP Modules: 1783-SFP1GSX (multimode fiber), 1783-SFP1GLX (single-mode fiber)
- Software: Studio 5000 Logix Designer v21+, FactoryTalk Network Manager, Cisco Network Assistant
Our Quality Assurance Process
- Source Verification: All units are sourced from authorized distributors or directly from Rockwell Automation-certified supply chains.
- Visual & Functional Inspection: Each unit undergoes physical inspection for label integrity, connector condition, and firmware version verification before shipment.
- Authenticity Check: Serial numbers are cross-referenced against manufacturer databases where applicable.
- Secure Packaging: ESD-safe packaging with anti-static bags and foam inserts to prevent transit damage.
- Documentation: Original datasheet, declaration of conformity, and test records provided upon request.
How to Order
- Step 1: Submit your RFQ via the Contact Us form or email support@konmask.com with your required quantity and delivery timeline.
- Step 2: Receive a formal quotation within 24 business hours including unit price, lead time, and shipping options.
- Step 3: Confirm purchase order — we accept T/T bank transfer, PayPal, and major credit cards.
- Step 4: Shipment via DHL / FedEx / UPS Express with full tracking and commercial invoice provided.
- Step 5: Post-delivery support — our engineers are available for integration questions and warranty claims.
Why Choose Konmask.com?
- ✅ Industrial Automation Specialists: We focus exclusively on PLC, DCS, and industrial network components — not a generalist marketplace.
- ✅ Global Sourcing Network: Access to both new and hard-to-find legacy parts through our verified supplier network across Asia, Europe, and North America.
- ✅ Technical Pre-Sales Support: Our engineers can confirm compatibility, firmware requirements, and system integration details before you commit to a purchase.
- ✅ Fast Quotation: RFQ responses within 24 hours for standard parts; expedited sourcing available for urgent shutdowns.
- ✅ Secure Export Compliance: All international shipments handled with proper commercial documentation, EAR/ECCN classification, and customs support.
Frequently Asked Questions
Q: Is the 1783-BMS20CGN compatible with non-Rockwell EtherNet/IP devices?
A: Yes. The 1783-BMS20CGN is a standard IEEE 802.3 managed switch. Any EtherNet/IP-compliant device — regardless of manufacturer — can connect to it. The Rockwell AOP integration is an optional convenience feature for Studio 5000 users.
Q: What is the difference between 1783-BMS20CGN and 1783-BMS20CGL?
A: The suffix “N” denotes the standard firmware image (Cisco IOS), while “L” variants may include different license tiers or port configurations. Always verify the exact catalog number against your system requirements before ordering.
Q: Can this switch be used in a Device Level Ring (DLR) topology?
A: Yes. The 1783-BMS20CGN supports DLR as a ring supervisor or ring node, enabling sub-3 ms fault recovery — critical for motion control and safety applications.
Q: What firmware version is pre-installed?
A: Firmware versions vary by production batch. Konmask.com can provide the firmware version of the specific unit upon request before shipment. Firmware upgrades are supported via Cisco IOS standard procedures.
Q: Do you provide a warranty?
A: Yes. All units sold through Konmask.com carry a minimum 90-day functional warranty. Extended warranty options are available — contact us for details.
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