Allen-Bradley 2080-SERIALISOL – Serial Communication Isolation Module | Micro800 Platform
Engineering Background
Industrial serial communication networks operating in electrically noisy environments—such as motor drives, welding cells, and high-voltage switchgear panels—are highly susceptible to ground loops and common-mode voltage transients. The Allen-Bradley 2080-SERIALISOL addresses this challenge by providing galvanic isolation between the Micro800 controller’s serial port and the field device network, protecting both the controller and connected instrumentation from damaging voltage differentials.
Product Positioning
The 2080-SERIALISOL is a plug-in module designed exclusively for the Allen-Bradley Micro800 controller family (Micro820, Micro830, Micro850, Micro870). It occupies one plug-in slot and delivers transparent RS-232 / RS-485 isolation without requiring additional power supplies or external isolators. For procurement engineers specifying Micro800-based control panels in demanding industrial environments, this module is the factory-recommended isolation solution from Rockwell Automation.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Catalog Number | 2080-SERIALISOL |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Product Family | Micro800 Plug-in Modules |
| Module Type | Serial Communication Isolation Module |
| Supported Protocols | RS-232, RS-485 (Modbus RTU, ASCII, DF1, generic serial) |
| Isolation Voltage | 500 V DC (galvanic isolation, channel-to-backplane) |
| Compatible Controllers | Micro820 (2080-LC20), Micro830 (2080-LC30), Micro850 (2080-LC50), Micro870 (2080-LC70) |
| Plug-in Slot Requirement | 1 plug-in slot |
| Power Consumption | Powered via controller plug-in bus (no external supply required) |
| Operating Temperature | 0 °C to +60 °C (32 °F to 140 °F) |
| Storage Temperature | -40 °C to +85 °C |
| Relative Humidity | 5% to 95% non-condensing |
| Enclosure Rating | IP20 (panel-mount installation required) |
| Certifications | UL Listed, CE Marked, cUL |
| Dimensions (H × W × D) | Refer to Rockwell Automation publication 2080-UM002 |
| Weight | Approx. 100 g |
| Country of Origin | USA / Mexico (Rockwell Automation manufacturing) |
Proven Application Environments
- Motor Drive Networks: Isolates Micro800 serial ports from VFD RS-485 Modbus networks where drive switching noise induces ground potential differences.
- Welding & Arc Furnace Panels: Prevents high-energy transients from propagating back to the PLC through serial communication cables.
- Long-Distance RS-485 Runs: Eliminates ground loop currents on multi-drop RS-485 networks spanning large factory floors or outdoor installations.
- Legacy Device Integration: Safely connects older RS-232 instruments (analyzers, barcode readers, printers) with differing ground references to Micro800 controllers.
- Oil & Gas / Chemical Plants: Provides an additional layer of electrical protection in environments with cathodic protection systems or stray DC currents.
- Building Automation & HVAC: Isolates BACnet MS/TP or Modbus RTU field buses from the controller in mixed-voltage building systems.
Engineering Advantages
- Factory-Integrated Isolation: Eliminates the need for external DIN-rail isolators, reducing panel footprint and wiring complexity.
- Transparent Operation: No firmware changes or special configuration required—the module appears as a standard serial port to Connected Components Workbench (CCW) software.
- 500 V DC Galvanic Isolation: Exceeds typical industrial isolation requirements, providing robust protection against common-mode voltage events.
- Dual Protocol Support: Single module supports both RS-232 and RS-485 topologies, reducing spare-parts inventory.
- Plug-and-Play Installation: Hot-swap capable plug-in design minimizes commissioning time and simplifies field replacement.
- Rockwell Ecosystem Compatibility: Fully supported in Studio 5000 Logix Designer and CCW, with Rockwell Automation technical documentation and lifecycle support.
System Architecture & Signal Flow
The 2080-SERIALISOL inserts between the Micro800 controller’s internal serial communication bus and the external field wiring terminal. The module’s isolation barrier separates the controller-side ground reference (CGND) from the field-side ground reference (FGND), allowing both sides to float independently within the rated isolation voltage. Signal integrity is maintained across the isolation barrier via optocoupler or transformer-based isolation technology, ensuring full-duplex RS-232 or half-duplex RS-485 communication without data corruption or latency penalties at standard industrial baud rates (up to 115.2 kbps for RS-232; up to 115.2 kbps for RS-485).
Typical wiring topology: Micro800 Controller → 2080-SERIALISOL Plug-in → Shielded Twisted-Pair Cable → Field Device (VFD / HMI / Sensor / Analyzer)
Sourcing & Quality Verification
- Authorized Supply Chain: Konmask.com sources Allen-Bradley modules through verified industrial automation distributors with documented chain-of-custody records.
- Authenticity Checks: Each unit is inspected for Rockwell Automation holographic labels, date codes, and firmware revision markings prior to shipment.
- Condition: New (factory-sealed) and tested surplus units available—condition specified at time of quotation.
- Documentation: Certificate of conformance and original Rockwell Automation packaging available upon request.
- Export Compliance: ECCN classification and export documentation provided for international shipments.
Procurement Process
- Submit RFQ: Contact support@konmask.com with your required quantity, delivery timeline, and destination country.
- Quotation: Receive a formal quotation with unit price (HKD/USD), lead time, and shipping options within 1 business day.
- Order Confirmation: Place order via the Konmask.com checkout or via purchase order (PO) for approved B2B accounts.
- Quality Inspection & Packing: Each module is inspected, photographed, and packed in anti-static ESD packaging before dispatch.
- Shipping: DHL Express, FedEx International Priority, or sea freight available. Tracking number provided upon dispatch.
- After-Sales Support: Technical support available via email or WhatsApp for installation and commissioning queries.
Technical FAQ
Q: Is the 2080-SERIALISOL compatible with the Micro820 controller?
A: Yes. The 2080-SERIALISOL is compatible with all Micro800 series controllers that feature plug-in slots, including the Micro820, Micro830, Micro850, and Micro870.
Q: Does this module support RS-485 multi-drop networks?
A: Yes. The module supports RS-485 half-duplex multi-drop topologies, enabling Modbus RTU networks with multiple slave devices on a single bus.
Q: Can I use this module without any special configuration in CCW?
A: Yes. The isolation is transparent to the software. Configure the serial port in Connected Components Workbench (CCW) as you would a standard Micro800 serial port—no additional driver or firmware is required.
Q: What is the maximum cable length supported on the RS-485 side?
A: RS-485 supports cable runs up to 1,200 m (4,000 ft) at lower baud rates. Actual maximum length depends on cable quality, baud rate, and number of nodes. Shielded twisted-pair (STP) cable is recommended.
Q: Does Konmask.com provide a warranty on this module?
A: Yes. Konmask.com provides a 90-day warranty against defects in materials and workmanship. Extended warranty options are available upon request.
Q: Can you provide an export declaration or commercial invoice for customs clearance?
A: Yes. Full export documentation including commercial invoice, packing list, and certificate of origin is provided for all international shipments.
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