Field-proven, reliable control of heavy-duty applications and processes

The Symphony Melody AC870P Controller is the latest in a long line of proven multi-function controllers, and can be adapted to a broad spectrum of applications and process requirements.
The AC870P controller is compatible with previous Melody and Contronic controller hardware and software architectures. This provides a predictable and risk-free evolution for an installed system’s control execution environment.

Features include:
  • Enhanced controller reliability
  • Improved performance
  • Simultaneous support for all connected I/O subsystems
  • Downloadable firmware
  • 100 Mbps Ethernet port for IEC61850 protocol communication on control level
  • Serial interface for Modbus RTU protocol communication on control level
  • Two redundant PROFIBUS DP lines

Symphony Melody Control is complemented by a full line of I/O interfaces to meet all plant requirements and by dedicated interface modules and devices for all turbine types, OEMs and sizes.

Why ABB?

  • Large variety of powerful functions available in tested libraries
  • Easy configuration, service and commissioning with S+ Engineering
  • Inherent redundancy without configuration/wiring costs



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