SCADA tying dispatch to plants

Supervisory control and data acquisition software — the systems factories and utilities use to watch equipment in real time — is moving into dispatch, not just control rooms. Inductive Automation says one Ignition deployment now connects central dispatch to more than 30 power plants. (inductiveautomation.com) In that project, Inductive Automation partner Controtek built a central Supervisory Control and Data Acquisition gateway for First Gen and Energy Development Corporation in the Philippines after a June 2021 market rule change cut dispatch intervals from one hour to five minutes. The system pulls five-minute dispatch setpoints and hourly demand projections into a Central Dispatch Office. (inductiveautomation.com) A “tag” in Ignition is a single live data point — like a temperature, pressure, breaker status, or setpoint — that can be shown on screens, stored in history, or used in logic. Ignition’s documentation says tags are the core data model for real-time status and control systems, and can be grouped across multiple installations. (docs.inductiveautomation.com) That matters for dispatch because the job is no longer just sending a work order or a generation target. It is matching live plant conditions to a decision every five minutes, using telemetry from remote sites instead of manual downloads and cross-checks. (inductiveautomation.com) In the First Gen case, Controtek said earlier software could not meet the response rate needed for remote data collection to central dispatch. The company said manual processes caused errors, delayed reports, and compliance penalties under the Wholesale Electricity Spot Market. (inductiveautomation.com) Ignition is built for that kind of bridge between plant-floor systems and business software. Inductive Automation says the platform connects databases, programmable logic controllers, and line-of-business applications on one server-centric system, with web deployment and support for standards including Structured Query Language, Python, Message Queuing Telemetry Transport, and Open Platform Communications Unified Architecture. (inductiveautomation.com) The hardware side of this model is familiar in industry: remote Supervisory Control and Data Acquisition and telemetry systems already collect field data from widely distributed assets such as radios, remote terminal units, and control devices. Vendors including Schneider Electric sell dedicated remote Supervisory Control and Data Acquisition products for exactly that purpose. (se.com) What is changing is where that data goes next. Instead of stopping at monitoring dashboards, the same plant signals can feed dispatch screens, compliance workflows, and operating decisions across fleets of sites from one central office. (inductiveautomation.com) Inductive Automation also pitches Ignition with unlimited tags, clients, screens, and connections under one license, which helps explain why operators are using it as a shared layer across multiple sites and teams. In practice, that makes Supervisory Control and Data Acquisition look less like a single control-room application and more like the live data backbone for dispatch itself. (inductiveautomation.com)