SEL RTAC HMI and Display Pages
Key Takeaway
How to build embedded web-based HMI displays in the RTAC — one-line diagrams, metering, alarm lists, trend displays, and operator controls.
Quick Answer
The RTAC includes an embedded web server for operator display pages accessible from any browser on the substation LAN. Build one-line diagrams, metering displays, alarm lists, and trend charts in ACSELERATOR RTAC's HMI designer.
HMI Designer
Drag-and-drop canvas with symbol library (breakers, transformers, buses, meters). Dynamic elements bind to RTAC tags for live data, state animation, and color changes.
Display Types
- One-line diagram — Bus, breaker, line symbols with live state
- Metering — MW, MVAR, kV, A numeric displays
- Alarm list — Active alarms with priority and acknowledge
- Trends — Historical analog tag charts with time window
Operator Controls
Pushbuttons for breaker trip/close (with confirmation dialog). Setpoint entry fields. Settings group selection. Password-protected access levels.
RTAC HMI vs SCADA
RTAC HMI is local substation-level. For enterprise SCADA with historian and multi-substation overview, use Ignition or Geo SCADA alongside the RTAC. See also enteliWEB for building automation HMI comparison.
Frequently Asked Questions
Via standard web browser navigating to the RTAC's IP address on the substation LAN. No additional software required.
RTAC HMI provides local substation-level visibility. For enterprise SCADA with historian and multi-substation overview, a dedicated SCADA platform complements the RTAC HMI.