Metso D201379L ACN RT Controller / Processor

the Metso D201379L is a high-performance Application Control Node (ACN) processor module within the Metso DNA (now Valmet DNA) automation system.

 It is a critical "brain" unit designed for modern, high-speed distributed control applications.

1. Introduction

The D201379L functions as a Real-Time (RT) Node or Master Controller. In the Metso DNA architecture, this module is responsible for executing the system's control strategies (logic, PID loops, and sequences) and managing the data traffic between the I/O level and the operator stations. 

The "L" suffix typically denotes specific hardware revisions or licensing configurations optimized for larger I/O capacities or localized control tasks.

2. Technical Parameter Table

3. Related Models

The D201379L is often found in systems alongside these components:

D201380 (MBR): A closely related processor node, often used in redundant pairs.

D201138 (IBC): Interface Bus Controller for managing I/O communication.

D201139 (IPS): Intelligent Power Supply for the controller rack.

ACN MR: The Master Redundant configuration utilizing two D201379L or D201380 units.

4. Application Cases

Pulp & Paper: Controlling the complex wet-end logic of paper machines where high-speed synchronization is vital.

Energy Management: Coordinating load-sharing and frequency control in thermal or hydroelectric power plants.

Mining & Minerals: Acting as the primary controller for high-capacity grinders and conveyors in mineral processing.

Chemical Processes: Managing hazardous sequences and safety-critical cooling loops in chemical refineries.

5. Product Advantages and Features

High Computation Power: Capable of processing thousands of function blocks with a consistent cycle time (down to 10 ms).

Fanless Reliability: Designed with passive cooling to ensure long-term stability in harsh industrial environments without moving parts that can fail.

Bumpless Redundancy: When configured in an ACN MR setup, the transition from primary to backup is instantaneous, preventing process disruptions.

Advanced Cyber Security: Includes hardware-level security features and a hardened operating system to protect against unauthorized network access.

High-Speed Networking: Utilizes dual Gigabit Ethernet ports for dedicated, redundant control network traffic (ACN).

6. Other Models in the Same Series

The D20xxxx series is the current backbone of the Valmet DNA system:

D201376: A standard-tier ACN RT node for general process control.

D201134: 16-channel Analog Input module.

D201135: 8-channel Analog Output module.

D201241: Specialized RTD/Thermocouple input module for temperature monitoring.