Changes made for Pathfinder 5226 controllers.

A hemmer is an add-on to a machine that is similar to a shear in the way that it moves across the machine except instead of cutting the material it creates a hem. The 5226 does not have a dedicated hemmer operation though so the idea was to use the shear operation to move the hemmer across the machine. The one problem that came from this though is that the shear comes back right away since the material has been cut. With the hemmer though the customer wants to remove the material so that the hemmer does not come back over the created hem.

The solution was to add a generic parameter that can be set to let the controller know there is a hemmer on the machine instead of a shear. Knowing this allows the controller to use the shear operation, but in a slightly different way. The logic with Hemmer Active is that once the hemmer gets to the end of the machine the controller will stop the hemmer and leave it there. The user can then press a pedal to raise the clamp and get the material out of the way. Another pedal press will make the hemmer return to its home position.