TS. Preschedule

The Preschedule step is used to modify blocks to their anticipated state at the start of the schedule.

Open

Preschedule step overview

Manual Preschedule

Blocks can be manually prescheduled by selecting them (either in the block tree on the left, or box-selected in the viewport) and clicking the flag icon in the toolbar.

Open

Select blocks > press Flag Selected Manually Prescheduled Blocks

In the Set Manual Preschedule window, enter the percentage of material remaining in the prescheduled block(s).

To manually preschedule blocks:

1. Use the Visibility Mode button to toggle between viewing all blocks, or only the currently selected blocks in the tree.

2. Select blocks in the viewport.

3. Press the flag icon from the toolbar.

4. Set percentage remaining in the block.

5. Tick Remove Full Prescheduled Blocks.

6. Press OK.

• To see manually set remaining ratio of the prescheduled blocks, select <Manual Remaining Label> and make it visible.

• To clear blocks with manual prescheduling, use the red minus icon in the toolbar at the top.

Auto Preschedule

Blocks can be prescheduled from a starting surface via the Flag Auto Preschedule icon. The starting surface must already be loaded into the Layers panel (bottom left).

Load a preschedule surface:

1. Locate the Layers panel in the bottom left of the screen.

2. Press the blue plus icon to import a new surface.

3. Import the preschedule surface.

Automatically preschedule blocks above the surface:

1. Press the Flag Auto Preschedule icon above the viewport.

2. In the Preschedule with Surface window:

   1. choose the preschedule surface;

   2. set the minimum and maximum thresholds (values outside of threshold will be rounded up or down).

3. Tick the records to be prescheduled. 

4. Use the Legend button to see colors assigned by the remaining ratio.

• To see auto prescheduled blocks, select <Automatic Remaining Label> and make it visible.

• To clear blocks with auto prescheduling, use the lightning icon red minus icon in the toolbar at the top.

Error Messages

“Block/parcel (<Reserves/…….>) must have values for volume, dry tonnes, and wet tonnes, or 0 in each.”

• Double click on the error message to display the whole list of affected blocks/parcels.

Review the preschedule data, you may find that some blocks have volume but no tonnes, or vice versa.

1. Check the blocks affected in Rapid Reserver:

   1. Navigate to Rapid Reserver > Designer tab > select the block from ATS Preschedule error message description > check its tonnes and volume in the Reserves tab at the bottom of the screen > most likely you will see the same missing values.

   2. Some blocks can be outside of the Block Model coverage > make sure you are using Block Model Gap Filling function, where default densities (this is essential) and tonnes are assigned (enable “Fill Block Model Gaps' in the Settings step).

   3. If Block Model Gap Filling is used correctly, but the error message in ATS Preschedule persists, check your Reserves mappings in the Block Model step > Reservable Model Generator.

      1. Change the volume and tonnes expressions to exclude blocks with Zero density, ie:

         1. volume = N("density") > 0 ? N("size (X)")*N("size(Y)")*N("size(Z)") : 0, or N("size (X)")*N("size(Y)")*N("size(Z)");

         2. tonnes = N("density") > 0 ? N("size (X)")*N("size(Y)")*N("size(Z)")*N("density") : 0, or N("density") > 0 ? N("size (X)")*N("size(Y)")*N("size(Z)")*N("density") : N("size (X)")*N("size(Y)")*N("size(Z)")*2.5 (density).

      2. Regenerate your Reserves Model and review the changes.