Limit Switch Action: Guidelines

About this task

The first location of the source region is checked for items.

Actions triggered by what items exist are:
If No items exist in the source region,
Then No items are moved.
If Multiple items exist at a location,
Then All items at the location move.
Actions triggered by the specified handling of a moved item are:
If Not handled along the route,
Then The item moves and a message is logged warning the user.
If Not allowed in the destination region,
Then The item is deleted and a message is logged warning the user.
Note: Other Guidelines for Limit Switch include:

Procedure

  1. The transition point may be an integer or character string point.
  2. The first 36 characters of a setpoint, if configured, are:
    First 16 characters Item type
    Next 20 characters Either the:
    • Item ID: for a serialized item
    • Associated or parent item ID: for a non-serialized item.
  3. If a limit switch is used to transition an item and the source region is empty, the limit switch is ignored.
  4. The route for a production start region can specify a limit switch as the transition indicator if the item type is explicitly defined for the route.