Status Messages

Status Message Details

Facility Process Control Statuses

"UNKNOWN", "awaiting data..."

Supervisor data has not been received.

"START UP", "initializing..."

Initial status of facility before evaluating system state.

Unit Statuses

Disconnected

"UNKNOWN", "awaiting data..."

Supervisor data has not been received.

"UNKNOWN", "awaiting connection..."

Supervisor is connected but has not connected to the PLC since startup.

"REACTOR OFF-LINE", "awaiting connection..."

PLC is disconnected.

Un-alarmed/Un-tripped Operation

"IDLE", "core <cold/warm/hot>"

Reactor is inactive but OK

• core "cold": < 350K
• core "warm": < 600K
• core "hot": ≥ 600K

"ACTIVE", "<status>"

Reactor is active

• "core temperature rising": Reactor High Delta T
• "core temp high, system nominal": Reactor Temp High
• "insufficient fuel input rate": Fuel Input Rate Low
• "insufficient waste output rate": Waste Line Occlusion
• "awaiting flow stability": Burn rate has changed too recently to accurately identify steam feed, coolant feed, and boil rate mismatches
• "system nominal": Systems are OK

RPS Trips

"RPS SCRAM", "core damage high"

Reactor protection system tripped due to high damage.

"RPS SCRAM", "core temperature high"

Reactor protection system tripped due to high core temperature.

"RPS SCRAM", "insufficient coolant"

Reactor protection system tripped due to insufficient coolant levels.

"RPS SCRAM", "excess waste"

Reactor protection system tripped due to high waste levels.

"RPS SCRAM", "excess heated coolant"

Reactor protection system tripped due to high heated coolant levels.

"RPS SCRAM", "insufficient fuel"

Reactor protection system tripped due to insufficient fuel.

"RPS SCRAM", "hardware fault"

Reactor protection system tripped due to a PPM fault.

"RPS SCRAM", "connection timed out"

Reactor protection system tripped due to losing connection with the supervisor.

"RPS SCRAM", "manual operator SCRAM"

Reactor protection system tripped due to a manual operator SCRAM.

"RPS SCRAM", "automated system SCRAM"

Reactor protection system tripped due to an automated system SCRAM.

"RPS SCRAM", "PLC system failure"

Reactor protection system tripped due to a the reactor no longer being formed.

"RPS SCRAM", "reactor force disabled"

Reactor protection system tripped due to a force disabled state (meltdown in a world with meltdowns disabled).

Alarm Messages

"REACTOR FORCE DISABLED", "meltdown would have occurred"

Reactor was force disabled due to a meltdown in a world with meltdowns disabled.

"CORE MELTDOWN", "reactor destroyed"

Reactor meltdown presumed to have occurred.

"MELTDOWN IMMINENT", "evacuate facility immediately"

Reactor has taken critical levels of damage.

"CONTAINMENT TAKING DAMAGE", "damage critical in ..."

Reactor taking damage, will attempt to estimate time to critical damage.

"RADIATION DETECTED", "radiation levels above normal"

Radiation detected by the unit environment detector.

"CORE OVER TEMP", "reactor core temperature >=1200K"

Reactor core temperature at damaging levels.

"WASTE LEAK", "radioactive waste leak detected"

Reactor waste level reached 100%.

"CORE TEMP HIGH", "reactor core temperature >1150K"

Reactor core temperature approaching damaging levels.

"WASTE LEVEL HIGH", "waste accumulating in reactor"

Waste levels approaching leak level.

"TURBINE TRIP", "turbine stall occurred"

Turbine trip has been detected.

"RCS TRANSIENT", "check coolant system"

Reactor coolant system transient alarm.

"EMERGENCY COOLANT OPENED", "reset RPS to close valve"

Emergency coolant valve has been opened and will remain opened until the RPS has been reset.