METSO BIU82 – Binary Input Module | Metso DNA Distributed Control System
Engineering Background
The BIU82 is a binary (digital) input module designed for the Metso DNA distributed control system platform — one of the most widely deployed DCS architectures in pulp & paper, power generation, and process industries. As a field I/O card, the BIU82 bridges field-level discrete signals (switches, contactors, proximity sensors, valve position feedback) to the DNA controller network, enabling real-time process monitoring and interlock logic execution.
Product Positioning
Konmask.com supplies the METSO BIU82 as a verified surplus / new-old-stock (NOS) replacement module for facilities maintaining or expanding Metso DNA systems. It is the preferred procurement path for engineers who require a drop-in replacement without the lead times and minimum-order constraints of OEM channels. The BIU82 is fully compatible with existing DNA I/O bus infrastructure and requires no firmware re-flashing when installed in a matching I/O station.
Complete Technical Specifications
| Part Number | BIU82 |
| Manufacturer | Metso Automation (now Valmet) |
| Module Type | Binary (Digital) Input Module |
| Platform | Metso DNA DCS |
| Input Channels | 32 binary input channels (typical for BIU8x series) |
| Input Signal Type | Dry contact / voltage-free discrete signals |
| Input Voltage Range | 24 V DC (nominal), field-side isolated |
| Isolation | Galvanic isolation between field and system bus |
| Communication Bus | Metso DNA I/O bus (proprietary backplane) |
| Mounting | DIN-rail / I/O station backplane slot |
| Status Indication | Per-channel LED status indicators |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -25 °C to +70 °C |
| Humidity | 5–95% RH, non-condensing |
| Weight | 250 g |
| Certifications | CE (as part of Metso DNA system) |
| SKU / Order Code | BIU82 |
Note: Specifications are based on Metso DNA BIU8x series documentation. Confirm exact channel count and I/O bus revision with your system’s I/O station configuration sheet before ordering.
Proven Application Environments
- Pulp & Paper Mills – Valve position feedback, motor run/stop status, conveyor interlocks
- Power Generation Plants – Turbine auxiliary status, breaker position monitoring, protection relay inputs
- Chemical & Petrochemical – Safety interlock inputs, level switch monitoring, pump status
- Mining & Minerals Processing – Crusher status, belt conveyor monitoring, emergency stop circuits
- Water & Wastewater Treatment – Pump station monitoring, valve feedback, flow switch inputs
- General Process Industry – Any Metso DNA installation requiring binary field signal acquisition
Engineering Advantages
- Drop-in Compatibility – Direct replacement for existing BIU82 slots in Metso DNA I/O stations; no reconfiguration of the DNA controller required
- Galvanic Isolation – Field-side isolation protects the DCS backplane from ground loops and transient surges common in industrial environments
- Per-Channel LED Diagnostics – Instant visual confirmation of input state during commissioning and fault-finding without requiring a laptop or engineering workstation
- Proven Long-Term Reliability – Metso DNA I/O modules are designed for 10+ year service life in continuous-process environments
- Immediate Availability – Eliminates OEM lead times (often 12–26 weeks) for obsolete or long-lead DCS cards
System Architecture & Signal Flow
In a Metso DNA architecture, the BIU82 resides in an I/O station connected to a DNA Field Controller (DFC) or equivalent controller node via the proprietary I/O bus. Field wiring terminates at the module’s terminal block. Each binary input channel reads the state of a field device (open/closed contact) and maps it to a corresponding process variable (PV) tag in the DNA database. The controller scans all I/O channels at the configured cycle time (typically 100 ms or faster) and makes the data available to control applications, HMI displays, and historian systems across the DNA network.
Field Device (Switch/Relay)
│
▼
BIU82 Terminal Block
│ (Galvanic Isolation)
▼
DNA I/O Backplane Bus
│
▼
DNA Field Controller (DFC)
│
▼
DNA Process Network
│
┌────┴────┐
▼ ▼
HMI Historian
Sourcing & Quality Verification
- Source: Verified surplus stock from decommissioned Metso DNA installations and authorized distributor channels
- Inspection: Each unit undergoes visual inspection for physical damage, connector integrity, and label legibility prior to listing
- Functional Testing: Units are tested for power-up and bus communication where test infrastructure is available; test status is disclosed per order
- Packaging: Anti-static bag + foam-lined carton; ESD-safe handling throughout
- Warranty: 90-day return-to-base warranty against DOA (Dead on Arrival) defects
- Counterfeit Risk: Konmask.com does not source from unverified grey-market brokers; provenance documentation available on request
Procurement Process
- Confirm Compatibility – Verify your I/O station model and DNA software version support the BIU82 (consult your DNA system documentation or contact our engineers)
- Request a Quote – Contact [email protected] for volume pricing, lead time confirmation, and test report availability
- Place Order – Purchase directly via this product page or via PO/proforma invoice for corporate procurement
- Shipping – DHL / FedEx express international shipping available; export documentation (commercial invoice, packing list) provided
- Incoming Inspection – We recommend a bench power-up test before installation; our technical team can advise on test procedures
Technical FAQ
Q: Is the BIU82 compatible with Metso DNA R5 and later software releases?
A: The BIU82 hardware is backward-compatible across DNA generations. Software release compatibility depends on your I/O station firmware; contact us with your DNA version for confirmation.
Q: Can the BIU82 be used in a Safety Instrumented System (SIS)?
A: The standard BIU82 is not SIL-rated. For safety applications, consult Metso/Valmet for their certified safety I/O modules.
Q: What is the difference between BIU82 and BIU84?
A: Both are binary input modules in the BIU8x family. Channel count and terminal block configuration may differ. Confirm the exact part number from your I/O station’s module map before ordering.
Q: Do you provide a test report?
A: Test reports are available for units that have undergone functional testing. Availability varies by stock batch — please enquire at time of order.
Q: What is your lead time?
A: In-stock units ship within 1–3 business days. International delivery via DHL Express is typically 3–7 business days.
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