Position Selection Method
Concept
The Position Selection Method determines the order in which tightening may or must be followed.
Order
Order | Explanation |
|---|---|
Forced order | Tightenings must follow a stable sequence of positions. For example, from top to bottom in a list. |
Free order | Tightenings do not follow a stable sequence of positions. The operator decides the tightening order. |
Enabled position | When a tool is moved to an enabled position, ILG unlocks the tool and allows operation. In ILG, enabled positions are shown in the blue color. |
Disabled position | When a tool is moved to a disabled position, ILG does not allow operation. In ILG, disabled positions are shown in the yellow color. |
Selecting a Position Selection Method
In the Mode menu, select Setup.
In the Workplaces menu, select Add.
The Workplace window opens.
Select a method from the Position Selection Method dropdown menu.
Position Selection Methods
ILG-Selected
ILG decides the sequence in which tightening must be followed. The positions that are shown in the Tightening Positions menu are followed from top to bottom, in falling order.
Groups can be created in the positions list. Groups allow the creation of more detailed orders. The workpiece order applies to bolts and groups that exist one level under the workpiece. Bolts and groups on a level can have their own order. For more information on groups and levels, see Creating a Group or Level
Batch-Selected
This method uses a controller to select tightening–position batches to run. The tightening positions are selected by ILG: forced or free order. A workpiece must have the Pset for each bolt set to the batch ID. For example, if the batch ID is 1, the Pset for all bolts in the workpiece must also be 1. A controller batch can contain multiple Psets. If a batch contains multiple Psets, the workpiece should use forced order. For more information on settings that are only available for Batch-Selected, see information about the option Batch counter enables position in Creating a Workplace.
Pset-Selected
Positions are chosen by a system that selects a Pset on a controller. The system could, for example, be a PLC, a MES, or even a batch that runs on a controller. If Pset 1 is selected on a controller, the first position with Pset 1 in ILG is enabled. The method can run in one of these orders:
Forced order: if multiple positions in ILG have Pset 1, the first position in a top–to–bottom list will be enabled. When ILG receives the result, the next position with Pset 1 is enabled.
Free order: all positions in a workpiece that have Pset 1 are enabled.
When using Pset-Selected, it is recommended to configure ILG to not send Psets to a controller.
External-Monitor-Selected
This method uses a third–party system, for example, a PLC or a controller, to select and configure which Psets will be run for which position. With this method, ILG is not used to control when a position can be used. This is handled by the third–party system. The method is similar to Pset-Selected, but it is the Position Number and not the Pset ID in the position that will determine the order in which tightening positions are enabled.
When a position is added to a workpiece, select the Advanced tab and go to the Position No. box. The number that is entered in this box decides when a tightening position will be run.
Message-Selected
This method requires a tool with an external PLC that is connected by using the Tool API.
