Metso Automation A413143 Modules

Technical Dossier

Product Details And Specifications

Metso Automation A413143 Series: Comprehensive Module Range and Technical Overview

The Metso Automation A413143 series represents a core I/O module family deployed within the Metso DNA (Distributed Control System) platform, widely installed across global heavy industries including petrochemical refineries, pulp and paper mills, nuclear power stations, and offshore oil & gas facilities. The A413143 backplane-compatible modules operate within the Metso DNA Field Station architecture, providing deterministic binary and analog signal processing with high noise immunity suited to harsh industrial environments. Installed base spans facilities in Europe, Asia-Pacific, and the Americas, with many sites operating beyond the original 20-year design lifecycle, creating sustained demand for spare parts and lifecycle extension services.

The Evolution of A413143 Architecture

The A413143 module family was introduced as part of the Metso DNA (formerly Neles Controls / Valmet Automation) distributed control platform during the late 1990s and early 2000s. Early revisions used parallel backplane communication with proprietary Metso field bus protocols. Subsequent hardware revisions introduced improved EMC shielding, extended operating temperature ranges, and enhanced diagnostic registers accessible via the DNA Engineering workstation. The series is compatible with Metso DNA Field Station cabinets using the standard 19-inch rack form factor and the A413000-series backplane connectors. As the Metso DNA platform transitioned toward the DNA Next Generation (DNA NG) architecture in the 2010s, the A413143 series entered a mature/end-of-active-production phase. Metso (now Valmet) continues to provide limited OEM support, but the primary supply channel for replacement modules has shifted to certified third-party distributors and refurbished spare parts specialists. Sites running legacy DNA configurations must plan for long-term maintenance sourcing, as direct OEM availability is constrained.

A413143 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified models within the Metso Automation A413143 series, classified by functional category. Each entry reflects a distinct hardware module used within the Metso DNA Field Station environment.

Binary Input (BI) Modules

• A413143 BIU84: 8-channel 24 VDC binary input module, isolated, for digital status signals.
• A413143 BIU85: 8-channel 48 VDC binary input module, enhanced voltage range for field devices.
• A413143 BIU86: 8-channel 110 VDC binary input module, high-voltage field signal acquisition.
• A413143 BIU87: 8-channel 230 VAC binary input module, AC field signal interface.

Binary Output (BO) Modules

• A413143 BOU84: 8-channel 24 VDC binary output module, transistor output, for actuator control.
• A413143 BOU85: 8-channel relay output module, dry contact, 250 VAC/2A per channel.
• A413143 BOU86: 8-channel 24 VDC binary output module, short-circuit protected, high-current variant.

Analog Input (AI) Modules

• A413143 AIU84: 8-channel 4–20 mA analog input module, 12-bit resolution, HART-transparent.
• A413143 AIU85: 8-channel ±10 V analog input module, for voltage-type transmitters.
• A413143 AIU86: 4-channel RTD/thermocouple input module, multi-sensor type support.
• A413143 AIU87: 8-channel 4–20 mA analog input module, 16-bit resolution, high-accuracy variant.

Analog Output (AO) Modules

• A413143 AOU84: 4-channel 4–20 mA analog output module, for control valve positioners.
• A413143 AOU85: 4-channel ±10 V analog output module, voltage output for variable speed drives.

Communication & CPU Modules

• A413143 CPU84: Field Station processor module, executes control logic, manages I/O bus communication.
• A413143 CMU84: Communication adapter module, Profibus DP interface for third-party device integration.
• A413143 PSU84: Redundant power supply module, 24 VDC input, for Field Station cabinet power distribution.

Sourcing Hard-to-Find & Obsolete A413143 Parts

DriveKNMS maintains a dedicated inventory program for Metso Automation A413143 series modules, specifically targeting end-of-life and long-lead-time variants. As Metso (Valmet) has transitioned active production to the DNA NG platform, many A413143 part numbers are no longer available through standard OEM channels. DriveKNMS sources verified surplus, refurbished, and new-old-stock (NOS) units through a global network of industrial asset recovery partners. All units are inspected, tested, and documented prior to dispatch. For facilities operating under extended maintenance contracts or planning a phased migration from legacy DNA to DNA NG, DriveKNMS provides multi-year stocking agreements and priority allocation for critical spare modules. Customers are encouraged to submit their full BOM (Bill of Materials) for cross-reference and availability confirmation.

Quality Control for the A413143 Range

The A413143 module family uses a proprietary backplane bus connector and internal ASIC-based signal conditioning circuitry that requires specialized test procedures beyond standard bench testing. DriveKNMS applies the following quality control protocol to all A413143 units processed through its facility: (1) Visual inspection of PCB, backplane connector pins, and component condition under magnification. (2) Powered functional test using a Metso DNA Field Station test rack with active backplane communication, verifying channel-by-channel I/O response against factory specification tolerances. (3) Burn-in test at elevated ambient temperature (50°C, 48 hours) to screen latent component failures. (4) Firmware version verification and documentation. (5) Final packaging in anti-static ESD bags with desiccant, labeled with test date, technician ID, and firmware revision. Each unit ships with a DriveKNMS test report. Units that fail any stage of the protocol are quarantined and not offered for sale.