Symphony Plus

Total Plant Automation

ABB Ability™ Symphony® Plus is a distributed control system (DCS) designed to maximize plant efficiency and reliability through automation, integration, and optimization of the entire plant.

With roots dating back more than 35 years as the preferred total plant automation platform for the power generation and water industries, it meets the most demanding requirements and has helped ABB be the number 1 supplier global DCS provider for over a decade.

Symphony Plus is backward compatible with all previous generations of the Symphony family of distributed control systems – Network 90, INFI 90, INFI 90 OPEN, Symphony Harmony, Contronic and Symphony Melody.

Looking for an innovative approach to upgrade your industrial automation?

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Our offerings

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S+ Operations

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Symphony® Plus Cyber Security

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SDe Series Control and I/O

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SD Series Control and I/O

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Symphony® Plus Fieldbus

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Symphony® Plus Service

Discover the Symphony® Plus advantage: NEW video series available!

Discover the power of Symphony® Plus - automation that grows with you. Seamlessly integrating the latest technology with decades of proven reliability, Symphony® Plus adapts to any plant, any process, and any scale. Unlock unified control, real-time insights, and confident, secure operations from edge to cloud.

Watch new video series and experience Symphony® Plus!

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Built for today, ready for what´s next

The latest Symphony® Plus SPR2025 delivers stronger connectivity, enhanced field device integration and improved system performance. Designed to support modernization without disruption, it provides a reliable, future‑ready foundation for both upgrades and new installations.

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ABB’s latest Symphony® Plus DCS release adds Automation Extended functionality

Latest version of Symphony® Plus distributed control system (DCS) release is built to help industries accelerate modernization without disruption
Enables secure, standardized and interoperable connectivity with system-wide OPC UA, enhanced field device integration, and ethernet backbone
Includes Automation Extended functionality, separating control and digital environments to empower innovation while maintaining core system reliability

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ABB Ability™ Symphony Plus® SDe Series to boost plant reliability and efficiency with seamless automation system upgrade

Offering innovation with continuity - modernizes traditional process control system installations with minimal risk and disruption to plants
Control system upgrades are key to futureproofing, securing and optimizing plant operations across industries

The Symphony Plus® SDe Series - Virtual Cabinet is an interactive tool to be used for exhibitions and fairs, customer engagements, and sales training. The application highlights the capabilities and functions of the SDe Series Control and I/O portfolio.

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ABB Ability™ Symphony® Plus Hardware Selector

This online tool helps you browse, find, compare and export datasheets instantly for SD Series hardware, from Controllers to Power Supplies and everything in between.

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Automation extended

This next step in ABB’s Process Automation Vision advances distributed control by combining proven reliability with continuous, future‑focused innovation. Built on open standards that separate core control from optimization, it enables systems that are easier to manage, evolve and integrate. Modular updates and container‑based technologies allow new functions to be added without disruption - helping plants modernize at their own pace across Symphony® Plus environments.

White paper: Open Automation in hydro power

Open Automation initiatives are revolutionizing the status quo of today’s control systems, answering the many challenges that hydropower industry must overcome.

IEC 104 has been beneficial for the hydropower sector, improving interoperability between devices, control and electrical equipment; providing logical access to data; and controlling aging installed electrical equipment.