Metso Automation A413143 BIU84

Technical Dossier

Product Details And Specifications

Metso Automation A413143 Series Technical Notes

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.