Ilogic cilinder stroke

[Anonymous]

Dear forum members,

I've got an assembly file where i'm using two different cilinders. They are replacing each other with use of some iLogic coding.

Now i want the customer to fill in a value for the stroke of the cilinder so that the cilinder moves to this position.

So in the coding i use values for the maximum and minimum stroke and some messageboxes.

SyntaxEditor Code Snippet

Parameter("24AU034:1", "Stroke") = Stroke_assy

If Height = "< 3900 mm" And Stroke_assy < 0 Then
    Stroke_assy = 0 mm
    MessageBox.Show("Enter a value higher then 0", "Wrong value",Ok)
    MessageBox.Show("Value set to 0", "Wrong value",Ok)
    

ElseIf Height = "< 3900 mm" And Stroke_assy > 1600 Then
    Stroke_assy = 1600 mm
    MessageBox.Show("Enter a value lower then 1600 mm", "Wrong value",Ok)
    MessageBox.Show("Value set to 1600 mm", "Wrong value",Ok)
    

ElseIf Height = "=> 3900 mm" And Stroke_assy < 0 Then
    Stroke_assy = 0 mm
    MessageBox.Show("Enter a value higher then 0 mm", "Wrong value",Ok)
    MessageBox.Show("Value set to 0 mm", "Wrong value",Ok)
    

ElseIf Height = "=> 3900 mm" And Stroke_assy > 1900 Then 
    Stroke_assy = 1900 mm
    MessageBox.Show("Enter a Value lower then 1900 mm", "Wrong value",Ok)
    MessageBox.Show("Value set to 1900 mm", "Wrong value",Ok)
    
    
End If
iLogicVb.UpdateWhenDone = True

So I hioe I could make it a little bit clear.

Dependable on the Height (parameter) a cilinder is chosen.

This will be the cilinder with a stroke of 1600 mm  or the cilinder with a stroke of 1900 mm.

So the borders for both cilinders are:

Cilinder 1600 mm = 0 mm/1600 mm

Cilinder 1900 mm = 0 mm/1900 mm

When a value is entered that is higher or lower then these numbers there should be an error message.

Until this point it went allright.

But after a wrong value is entered, the cilinder still moves to that wrong number.

So I thought i could set the value of Stroke_assy to 0 mm or 1600/1900 mm after a wrong value is entered.

But till now i didn't manage to do that with the code i have now.

What did i do wrong?

[Anonymous]

I Think you have to use this code: 

Parameter("Stroke_assy") = 0 mm

This way the parameter will update imidiately.

[Anonymous]

Thanks for your help, but it doesn't  work.

I've got the same problem.

The value is set back to 1600 mm but the assembly still takes the entered value

[Anonymous · Accepted solution]

Okay figured it out!!!

It took me a whole day but it's that simple.

If Height = "< 3900 mm" And Stroke_assy < 0 Then
    Stroke_assy = 0 mm
    MessageBox.Show("Enter a value higher then 0", "Wrong value",Ok)
    MessageBox.Show("Value set to 0", "Wrong value",Ok)
    

ElseIf Height = "< 3900 mm" And Stroke_assy > 1600 Then
    Stroke_assy = 1600 mm
    MessageBox.Show("Enter a value lower then 1600 mm", "Wrong value",Ok)
    MessageBox.Show("Value set to 1600 mm", "Wrong value",Ok)
    

ElseIf Height = "=> 3900 mm" And Stroke_assy < 0 Then
    Stroke_assy = 0 mm
    MessageBox.Show("Enter a value higher then 0 mm", "Wrong value",Ok)
    MessageBox.Show("Value set to 0 mm", "Wrong value",Ok)
    

ElseIf Height = "=> 3900 mm" And Stroke_assy > 1900 Then 
    Stroke_assy = 1900 mm
    MessageBox.Show("Enter a Value lower then 1900 mm", "Wrong value",Ok)
    MessageBox.Show("Value set to 1900 mm", "Wrong value",Ok)
    
    
End If

Parameter("24AU034:1", "Stroke") = Stroke_assy
iLogicVb.UpdateWhenDone = True

The only thing i needed to do was putting the first line at the end.

So the whole rule runs first and after that the value is linked to the parameter.