PS Schedule Error Messages

Owned by Gemma O'Farrell (Unlicensed)
Apr 28, 2021
3 min read

Common warnings and how to resolve them.

No Trucks Assigned

This message indicates that no trucks hours are available to be assigned to agent.

Validate trucks are assigned to Agent in Calendar > Truck Assignments & Calendar > Agents > Truck Assignments.

‘No Trucks Assigned’ trace message.

Invalid Forced Destination

A forced destination was specified, but there was no associated destination rule.

This message indicates that the user applied a forced destination in the Animation tab > JIT Destinations panel, but that destination was not listed in the relevant destination rule. This can be fixed by appending the forced destination to the destination list in Setup > Destination Rules.

Schedule interruption: forced destination failed.

Proximity Constraint

A proximity constraint applied to agent EX001 prevented access to Reserves/Pit1/600/001/605/W01/Waste

This message indicates that an agent shut down due to proximity to another agent. These thresholds can be changed in Setup > Logic > Agent Proximities.

‘Proximity constraint’ trace message.

No Path Found

Schedule Interrupted: No cycle time was returned from Haul Infinity. The reason is NoRouteAvailable.

This message indicates that Haul Infinity could not connect the source to its destination. To resolve the issue, open the Haul Infinity tab and query a haul with the same source, destination, truck, loader, and material.

  • Haul Infinity > Network > query the haul and check the path exists.

  • Haul Infinity > Network  > Error List > check for steep segments. 

Steep Segment

Alastri.TransitTemporality.InvalidSegmentException: Truck cannot safely traverse segment - the retarder does not have enough force to slow the truck on the slope.

This message indicates that the route in Haul Infinity crosses a road that is too steep for the truck. To resolve the issue, open the Haul Infinity tab and fix all network errors in the Error List.

Optimisation Failure

The optimisation chose to send nothing to the possible destinations.

This message indicates that a digger shut down on ore, because the optimisation returned a negative cash flow for the available destinations.

The optimiser can be thought of as a mining contractor. It prioritises high-revenue movement, and it won’t work for negative cash flows.

‘Optimisation failed’ trace message.