Have a new question? Feel free to leave an anonymous comment below.

Common questions from new and experienced users.

Why is my transaction showing zero values in activity X?

Reserve Sources

Stockpile Sources

Why can’t I change the preschedule values?

Check that the pit tonnes are greater than zero. Pits with zero tonnes are automatically prescheduled to zero percent remaining.

What is the order of mining of material types in a dig blocks?

If you want to mine waste before ore, go to Rapid Reserver and cut the waste material out as a separate dig block.

How do cash flows affect the order of parcel selection in a block?

Cash flows do not affect the original parcel selection order.

How does the optimizer handle dig blocks with multiple parcels?

The optimizer selects the first parcel in the (arbitarily ordered) material list, and decides what needs to be done with it. The optimizer will stay on that block until completed.

What happens if the optimizer ‘gets stuck’ on a single parcel and there are still other parcels available within the dig block?

As the optimizer has already selected the original parcel, it will continue to try that parcel until it is completed. The digger will not move forward until the parcel is completed.

The block is already chosen before the optimisation runs. If the optimisation fails, then the engine exits and declares a ‘Do Nothing’ delay for the duration of the Steady State.

What does Skip Blocks do in the Gantt?

This setting allows an agent to skip dependencies (entire blocks). Once the agent has commenced a block, it remains there until the block has finished.

How do I see flitches in the animation?

What is the relationship between the Calendar agent rate and the Haul Infinity loader rate?

The Haul Infinity loader rate is the instantaneous rate which the loader can achieve. The Calendar Agent Rate is the average loader rate you want to achieve during the period. The Calendar Agent Rate (average rate) multiplied by the available hours per unit equates to the loaders target tonnes to be achieved for the period with the hours available in that period.

Example:

Haul Infinity Loader Rate (Instantaneous) = 1,000tph
Available Hours = 24hrs
Loader Capacity = Instantaneous rate x Available Hours
= 1,000 x 24
= 24,000 tonnes

Calendar Agent Rate = 800tph
Available Hours = 24hrs
Target tonnes = Calendar Agent rate x Available Hours
= 800 x 24
= 19,200 tonnes