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8.5.1.190 lift over moves machine moves reach stacker top lifter

Reach Stacker Lift-Over Moves

The Machine code table lets you configure fork lift, side loader, and top lifter (reach stacker) machines to perform lift-over moves.

This applies to import (and other IMEX status) containers when setting them down them or picking them up in and out of the gridded yard blocks. This will also apply to containers that need to be moved out of the way (that is, shuffled or kicked) to allow the lift-over move to be completed. The shuffled container is not given a new planned location automatically, the machine driver must decide where to place the container.

When you maintain a machine that is a fork lift, side loader, or top lifter, you can specify the following over-stow configuration settings.

  • Access Maximum Height Difference, which is the allowed difference between the stack height of the target container and the highest over‑stowing stack that the machine can reach over.
  • Access Maximum Location Reach, which is the maximum number of grid locations that the machine can reach over to access the target item.
  • Access Maximum Overstow Height, which is the maximum stack height of over‑stowing containers that the machine can reach over to access the target item.

A = Access Maximum Overstow Height
B = Access Maximum Location Reach
C = Access Maximum Height Difference

Examples

If the Access Maximum Over stow Height setting of a machine has a value of:
2, the yellow container is not accessible.
3, the yellow container is accessible. 

If the Access Maximum Location Reach setting of a machine has a value of:
1, the yellow container is not accessible.
2, the yellow container is accessible.

The Access Maximum Height Difference setting does not allow negative values so in the following example, the yellow container is not accessible by any machine.

If the Access Maximum Height Difference setting of a machine has a value of:
1 or 0, the yellow container is not accessible.
2, the yellow container is accessible.

If the Access Maximum Height Difference setting of a machine has a value of 0, the yellow container is accessible.

To access the yellow container in the following example, the machine must have the following settings:

Access Maximum Overstow Height = 1
Access Maximum Location Reach = 2
Access Maximum Height Difference = 1

As part of this change, the Move Overstowing Cargo screen and the Show Overstowing Cargo screen now enable you to select a machine with access to the terminal area. When you select a machine, the system determines the over-stowing containers based on the access rules of that machine.

The Show Overstowing Cargo screen is shown in the following diagram.

This enhancement is available in Master Terminal 8.5.1.190. 

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