Emerson DeltaV is one of the world’s leading distributed control systems, renowned for its ease of use, Intelligent Device Management (IDM), and strong integration with Emerson’s field device portfolio. This overview explains the DeltaV architecture and its engineering tools for engineers new to the platform.

DeltaV System Components

  • DeltaV Workstations: Engineering and operator workstations running on Windows Server or Windows 10
  • MD/SD/M-Series Controllers: Process controllers with varying I/O capacities and processing power. The latest MD Plus and SD Plus controllers offer enhanced security features.
  • CIOC / WIOC: Characterization I/O Card (wired) and Wireless I/O Card for WirelessHART field devices
  • DeltaV Operate: The operator interface using faceplates and graphics built in DeltaV Operate Configure
  • DeltaV Diagnostics: Real-time system health monitoring

DeltaV Node Hierarchy

DeltaV organises the system as: System > Area > Unit > Module > Block. This hierarchy maps to ISA-88 batch concepts and makes it straightforward to apply alarm and control philosophy consistently across a plant area.

DeltaV Explore and Configure

DeltaV uses two primary engineering interfaces:

  • DeltaV Explorer: System browser for configuring hardware, network, and node assignments. Think of it as Device Manager for the DeltaV system.
  • DeltaV Configure: Module and control strategy editor where Function Block Diagrams are built and downloaded to controllers.

Function Blocks in DeltaV

DeltaV uses IEC 61804 function blocks. Key blocks include:

  • AI/AO: Analog input and output with HART integration
  • PID: Full-featured PID with built-in auto-tune, feed-forward, and override
  • CALC: Expression calculator for custom engineering calculations
  • DEVCTL: Device control block for on/off equipment with interlock and sequencing

Intelligent Device Management (IDM)

DeltaV IDM integrates with HART and FOUNDATION Fieldbus devices to provide valve diagnostics, device configuration, and predictive maintenance data from the engineering workstation. No separate handheld communicator is needed for most configuration tasks – a major efficiency gain for instrument technicians.