Danaher Motion 06/2005 BASIC Moves Development Studio
M-SS-005-03 Rev E 31
After you have specified the variable or expression, list one or more values
or value ranges that the variable can take. There are four ways you can
specify cases:
Exact Value
Logical Condition
Range
Else
The syntax of Select…Case is:
Select Case SelectExpression
{Case Expression1
{statements to be executed if SelectExpression = Expression1}}
{Case Expression2
{statements to be executed if SelectExpression = Expression2}}
{Case Is RelationalOperator Expression3
{statements to be executed if the condition is true}}
{Case Expression4 To Expression5
{statements to be executed if SelectExpression is between values}}
{Case Else
{statements to be executed if none of the above conditions are met}}
End Select
where
SelectExpression is a Long, Double or String expression
in Case…To…, if Expression4 > Expression5, the case is
never true; no error is flagged.
Select…Case block. The following example puts all four types of cases
together:
Program
Dim N as Long
Select Case N
Case 0
Print "N = 0"
Case 1
Print "N = 1"
Case is >=10
Print "N >= 10"
Case is < 0 ‘No requirement for statements after Case
Case 5 TO 9
Print "N is between 5 and 9"
Case Else
Print "N is 2, 3, or 4"
End Select
End Program
For…Next statements allow you to define loops in your program. The syntax
is:
For counter = Start To End {Step Size}]
{Loop Statements}
Next {counter}
where
If Size is not defined, it defaults to 1.
The loop is complete when the counter value exceeds End.
For positive Size, this occurs when counter>End. For
negative Size, when counter<End.
Counter, Start, End, and Size may be Long or Double.
