Metso | M851004 (M2 / 547070-2B) | CPU Module

The Metso Automation M851004 CPU Module (frequently designated as the M2 processor board or associated with part number 547070-2B) is a high-performance central processing unit engineered for Metso and Valmet distributed control systems (DCS). Designed to execute real-time automation logic, manage complex multi-channel data acquisition, and coordinate high-speed network communication, this processor serves as the core computational engine for industrial processes. Its robust industrial construction ensures high operational stability, vibration resistance, and reliable execution in demanding environments such as pulp and paper manufacturing, power generation, and petrochemical processing.

Technical Datasheet Parameters

• Brand: Metso Automation (Valmet / Metso DNA Ecosystem)
• Model: M851004 (Alternative Variants: M2 / 547070-2B / 547070-2A)
• Series: Metso / Valmet DNA Processor Series
• Product Name: Central Processing Unit (CPU) Module
• Origin Country: Finland / Global Manufacturing Network
• Lifecycle Status: Established Industrial Support / Legacy Tier
• Physical Dimensions: Standard Modular Rack-Mount Controller Card Format (~240 mm × 160 mm × 35 mm)
• Unit Weight: 0.36 kg
• Manufacturing Origin: Metso Certified Production Facility
• Power Rating: Low-Voltage Internal Logic Power (Powered via System Rack Backplane)

Recommended Alternative Series Models

For system upgrades, controller expansions, or alternative processing configurations, ten related models within the Metso and Valmet CPU and controller series include:

• ❖ Metso 547070-2B CPU Module
• ❖ Valmet 547070-3A CPU Module
• ❖ Metso PDP403 Distributed Processing Unit
• ❖ Metso ACN Controller Processor Unit
• ❖ Metso DNA Processor Node Type A
• ❖ Metso DNA Processor Node Type B
• ❖ Metso Master Controller Board
• ❖ Metso System Gateway Processor
• ❖ Metso Redundancy Controller Adapter Card
• ❖ Valmet System Control Processor Unit