Control and Monitor Plant

Control Systems

Mitsubishi Power is one of the largest plant manufacturers in the world and it has developed a large number of plants including thermal power plants. Based on its vast experience, Mitsubishi Power developed a proprietary control system called DIASYS in the 1980s in order to provide customers with the best possible solutions for plant operation.

Over the 30 years since then, the DIASYS series have controlled and monitored various types of plants. Only Mitsubishi Power, with its deep knowledge about plants, can offer the best possible control systems to support customer business needs.




Distributed Control Systems Applied to Various Business Scenarios

DIASYS offers controllers for both large-scale systems (MPS) and small-scale systems (CPS) to best suit your needs.

Highly reliable Distributed Control System (DCS) offering the best balance between cost- and use -based performance are available.

High reliability and easy maintenance

DIASYS maintains high system reliability by having redundancy for its CPU data processing module, network modules, and power unit. Furthermore, the CPU module has a substantial self-diagnostic function. In case of failure, the system switches to the backup modules without any disruptions in system control. Additionally, the root cause of the issue is displayed to aid in taking prompt corrective action.

Designed for ease of engineering in control logic, system construction and system expansion

You can change and create control operation logic, create a system diagram or control loop displayed on an operator station, and add to or change the hardware configuration by using the maintenance tools specifically designed for DIASYS. This maintenance data is centrally managed through an integrated database to allow efficient engineering.

Windows-based human-machine interface with superb operability and rich functionality

Operator stations are easy to operate and use because they use the Microsoft Windows operating system to operate and monitor processes and to manage data. Operator stations provide a variety of functions to support operation, control, and monitoring of a plant. These functions include displaying plant system diagrams, trend graphs, control loop plates, and alarm events as well as logic monitoring.

Supports communication interfaces for connecting with systems from various vendors

DIASYS supports a variety of communication protocols such as ModbusTCP/IP, OPC (OLE for Process Control), and DNP3.0. This allows DIASYS to connect to and communicate with systems from other vendors.

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Proven Results