Metso Automation D201776 ACN PO DC PLC Control Server Computer

Metso Automation D201776 ACN PO DC is a high-performance industrial control server and processor unit, serving as a critical backbone for the Metso DNA (now Valmet DNA) automation and information platform.

Designed for demanding process industries, this unit functions as an Application Controller Node (ACN), facilitating real-time control, data management, and seamless communication between field devices and the operator interface.

## Technical Parameter Table

The D201776 is engineered for reliability in “always-on” industrial environments.

Parameter    Specification

Origin    Finland

## Product Advantages and Features

High Redundancy: Supports dual-network connectivity to ensure zero downtime. If one communication path fails, the system switches instantly to the backup.

Robust Processing: Capable of handling over 30.000 I/O signals, making it suitable for massive-scale operations like cruise ships or chemical plants.

Industrial Hardening: Built with a ruggedized chassis (PO DC version) to withstand vibration, heat, and electromagnetic interference.

Seamless Integration: Fully compatible with the Metso DNA ecosystem, allowing it to act as both a PLC and a SCADA node simultaneously.

## Application Cases

The D201776 ACN PO is deployed in sectors where process stability is non-negotiable:

Marine & Offshore: Used in the world’s largest cruise vessels (e.g., Oasis-class) to manage power plants, HVAC, and emergency shutdowns.

Pulp & Paper: Controls complex paper machine sequences and quality monitoring.

Power Generation: Manages turbine control and load balancing in hydroelectric and thermal plants.

Mining & Minerals: Optimizes crushing and grinding circuits by processing real-time sensor data from the field.

## Related Models in the Same Series

D201463 (ACN C20): A compact network controller focused on high-density I/O.

D202038 (ACN PO): A similar process operator node, often used for power output modules.

ACN RT: Real-time controller version for high-speed logic execution.

IOP334: Diagnostic and monitoring module used in tandem with the ACN servers.

## Installation and Maintenance

Note: Professional installation is required. Ensure all DC power sources are isolated before attempting connection.

Mounting: Install in a ventilated 19-inch rack or dedicated Metso cabinet. Ensure the side brackets are securely fastened.

Wiring: Connect the 24V DC power to the terminal block. Use shielded Ethernet cables (Cat6 or higher) for the redundant control bus.

Cooling: Maintain at least 50mm of clearance around the unit for airflow.

Maintenance: Regularly check LED status indicators (Power, Run, Fault). Use the Metso DNA diagnostic tool to perform remote health checks on CPU and memory utilization.