How do you clear a fault on SCADAPack?

Minor faults clear via Telepace Studio Controller Reset. Persistent faults may require power cycle. Check the event log for the fault code and root cause before clearing.

Why is SCADAPack not responding to DNP3 polls?

Check outstation address, communication port, baud rate, wiring (RS-485), firewall (TCP), and whether the SCADAPack is in a fault/halt state. Review the Telepace Studio event log.

What does a solid FAULT LED mean?

A solid FAULT LED indicates a hardware or program fault that has halted or degraded operation. Connect with Telepace Studio and check the event log for the specific fault code.

SCADAPack Fault Diagnostics and Troubleshooting

Quick Answer

SCADAPack diagnostics use front-panel LEDs, the Telepace Studio event log, and communication status indicators. Most faults can be diagnosed by checking LED states, reviewing the event log, and verifying communication and I/O configuration.

Status LEDs

PWR — Power status (green=normal)
RUN — Program executing (green=running, off=stopped)
FAULT — Error condition (solid=halted, flashing=degraded)
COM — Communication activity

Event Log

Connect with Telepace Studio and open Controller → Event Log. Review timestamped entries for fault codes, communication errors, watchdog timeouts, and I/O exceptions.

DNP3 Troubleshooting

Not responding to polls — Check outstation address, port, baud rate, wiring
No unsolicited responses — Verify unsolicited is enabled, confirm port matches
Stale data — Check deadband settings, verify I/O is connected
Event buffer overflow — Increase buffer size or poll frequency

I/O Faults

Expansion module not responding — check bus cable and power
Analog reading out of range — verify input type configuration and wiring

Self-Diagnostics

Build a fault annunciator routine using SCADAPack system status registers to detect CPU errors, communication faults, and low battery. Report fault conditions via DNP3 binary inputs to the SCADA master.

Frequently Asked Questions