ABB 3BHB006338R0002 UNS0881a-P V2 – Digital Input/Output Module | AC800M DCS Platform
Engineering Background
The ABB 3BHB006338R0002 (UNS0881a-P, Version 2) is a dedicated Digital Input/Output module engineered for deployment within ABB’s AC800M Distributed Control System (DCS) architecture. Designed to meet the rigorous demands of continuous-process industries, this module provides reliable, high-density digital signal interfacing between field instrumentation and the central control platform. It is a critical building block in safety-critical and process-critical automation loops.
Product Positioning
Targeted at procurement engineers and system integrators sourcing verified OEM replacement or expansion I/O modules for existing AC800M installations. Konmask maintains direct-sourced inventory with full traceability, supporting both urgent MRO replacements and planned capital project builds.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 3BHB006338R0002 |
| Model | UNS0881a-P, Version 2 |
| Manufacturer | ABB |
| Module Type | Digital Input/Output (DI/DO) |
| Platform Compatibility | ABB AC800M DCS |
| Signal Type | Digital (discrete) I/O |
| Country of Origin | China (CN) |
| Unit Weight | Approx. 300 g |
| Mounting | DIN rail / rack-mount per AC800M backplane |
| Communication Interface | AC800M internal bus |
| Operating Temperature | 0 °C to +55 °C (typical ABB DCS module rating) |
| Storage Temperature | -40 °C to +70 °C |
| Humidity | 5–95% RH, non-condensing |
| Compliance | CE, RoHS (verify current revision with datasheet) |
Note: For full electrical ratings (voltage, current, channel count, isolation), refer to the official ABB datasheet for 3BHB006338R0002 or contact our technical team.
Proven Application Environments
- Oil & Gas — upstream/downstream process control and ESD systems
- Power Generation — turbine control, boiler management, and grid interface
- Chemical & Petrochemical — reactor monitoring and batch process automation
- Pulp & Paper — continuous process line control
- Water & Wastewater — SCADA-integrated pump and valve control
- Marine & Offshore — platform automation and machinery control
- Mining & Minerals — conveyor, crusher, and plant-wide DCS integration
Engineering Advantages
- Drop-in Compatibility: Direct replacement for existing AC800M I/O slots — no firmware reconfiguration required in most installations.
- High Signal Density: Maximizes cabinet space utilization in high-channel-count applications.
- Deterministic Response: Supports real-time control loops with predictable scan-cycle performance.
- Robust Isolation: Channel-to-channel and field-to-bus isolation protects controller integrity from field-side transients.
- Hot-swap Capable: Supports live module replacement per AC800M system design (verify with site SOP).
- Long Service Life: ABB industrial-grade components rated for continuous 24/7 operation in harsh environments.
System Architecture & Signal Flow
The UNS0881a-P V2 interfaces directly with the AC800M controller backplane via the internal I/O bus. Field-side digital signals (24 VDC or dry-contact, per channel configuration) are conditioned, optically isolated, and mapped to the controller’s process image. The module communicates status, diagnostics, and channel data to the AC800M CPU in real time, enabling closed-loop control and alarm management through ABB’s 800xA or Symphony Plus engineering environments.
Field Devices (Sensors/Actuators)
|
[Terminal Block / Field Wiring]
|
[3BHB006338R0002 UNS0881a-P V2]
- Input conditioning & isolation
- Output driver & protection
|
[AC800M Backplane I/O Bus]
|
[AC800M CPU / Controller]
|
[800xA / Symphony Plus DCS]
Sourcing & Quality Verification
- OEM Origin: All units sourced from authorized ABB distribution channels or verified surplus with full provenance documentation.
- Incoming Inspection: Each module undergoes visual inspection, label verification, and functional power-on check prior to dispatch.
- Serialization: ABB serial number and revision markings verified against manufacturer records where applicable.
- Packaging: Anti-static ESD packaging with desiccant; double-boxed for international freight.
- Warranty: 12-month Konmask warranty against manufacturing defects; DOA replacement within 7 days of receipt.
Procurement Process
- Inquiry: Submit your RFQ via email (support@konmask.com) or WhatsApp (+0086 19859288691) with required quantity and delivery timeline.
- Quotation: Receive itemized quotation with unit price, lead time, and shipping options within 24 business hours.
- Order Confirmation: Issue PO against quotation; proforma invoice issued for payment processing.
- Payment: T/T (wire transfer), PayPal, or trade-term arrangements (EXW, FOB, CIF) available.
- Dispatch: DHL / FedEx / UPS express or sea freight; tracking number provided within 24 hours of shipment.
- After-Sales: Technical support and warranty claims handled by Konmask engineering team.
Technical FAQ
Q: Is 3BHB006338R0002 compatible with AC800M R5.x and R6.x firmware?
A: The UNS0881a-P V2 is designed for the AC800M platform. Firmware compatibility should be confirmed against your specific controller revision using ABB’s compatibility matrix. Contact us for guidance.
Q: Can this module be used in SIL-rated safety loops?
A: This is a standard DCS I/O module. For SIL-certified applications, verify the module’s SIL rating in the ABB functional safety documentation before deployment.
Q: What is the lead time for in-stock units?
A: In-stock units ship within 1–3 business days. For out-of-stock items, lead time is typically 2–6 weeks depending on sourcing channel.
Q: Do you provide test reports or inspection certificates?
A: Yes. Incoming inspection reports and, where available, original ABB test certificates are provided upon request.
Q: Can you supply multiple units for a plant-wide retrofit?
A: Yes. Konmask supports bulk procurement for capital projects. Contact us for volume pricing and project scheduling.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
