TestIT:Programming Functions
Contents
5.3 Functions Window
The function window encompasses all the codes, which can be inserted in the program. To get information about the function, then, press on the wanted line and use the info button. When a function is going to be created, the wanted function can be selected, or if the code is known then it is possible to write it. To get help with filling in the function, the Config button can be selected and it will show the parameters. In symbol handler, it is possible to add a symbol, and it is also possible to insert a symbol in the function. To insert a symbol, just double-click on the wanted symbol.
5.3.1 Functions
If
Description:
Evaluates a statement and continues if true and skips if it is not true. It compares two values and is always used together with EndIf.
Code example:
Function.If(_B01,=,1)'Code will only be executed if _B01 = 1
Function.EndIf()
| Parameters | ||
|---|---|---|
| Parameter | Type | Description |
| Criteria1 | Number or number symbol | Value 1 |
| Sign | Sign | Select sign to use for comparison. Must be (<,>, <>,=, >=, ⇐) |
| Criteria2 | Number or number symbol | Value 2 |
IfMinMax
Description:
Evaluates a value against a min. and max. It continues if the value is between the min. and max, and skips if it is not.
Code example:
Function.IfMinMax(_IN01,1,5)'Code will only be executed if _IN01 is between 1 and 5
Function.EndIf()
| Parameters | ||
|---|---|---|
| Parameter | Type | Description |
| Value/Symbol to compare | Number or number symbol | Value 1 |
| Min value | Number or number symbol | Minimum value |
| Max value | Number or number symbol | Maximum value |
EndIf
Description:
It is used together with If or IfMinMax. It will stop the if code.
Code example:
Function.If(_B01,=,1)'Code will only be executed if _B01 = 1
Function.EndIf()
No parameters
Wait
Description:
It will wait until the time has run out or criteria is met.
Code example:
Function.Wait(_D01,>,10,30,S,_TO01)Function.If(_TO01, =, 1)'Code will enter if wait times out
Function.EndIf()
| Parameters | ||
|---|---|---|
| Parameter | Type | Description |
| Criteria1 | Number or number symbol | Value 1 |
| Sign | Sign | Select sign to use for comparison. Must be (<,>, <>,=, >=, ⇐) |
| Criteria2 | Number or number symbol | Value 2 |
| Timeout | Int or Int symbol | Time before command times out |
| Time unit | String | Select the time unit from the list |
| Timeout active | Bool symbol | True if wait command times out |
Sub
Description:
It is used to split the program up in smaller programs. The main sub is the sub which TestIT always starts in. The program cannot run if there is no main sub. It must always end with an EndSub.
Code example:
Function.Sub(1000)'Execute this sub routine
Function.EndSub()
| Parameters | ||
|---|---|---|
| Parameter | Type | Description |
| Sub name | String | Name of the sub. Must be unique in the program |
EndSub
Description:
It is the end mark of a sub.
Code example:
Function.Sub(1000)'Execute this sub routine
Function.EndSub()
No parameters
GoSub
Description:
It will jump to a specific sub.
Code example:
Function.GoSub(1000)
| Parameters | ||
|---|---|---|
| Parameter | Type | Description |
| Sub name | String | Name of the sub. |
Label
Description:
It will set a fix point to jump to.
Code example:
Function.Label(startLoop)
| Parameters | ||
|---|---|---|
| Parameter | Type | Description |
| Label name | String | Name of the label. Must be unique within the sub |
GoLabel
Description:
It will jump to a specific label.
Code example:
Function.GoLabel(startLoop)
| Parameters | ||
|---|---|---|
| Parameter | Type | Description |
| Label name | String | Name of the label |
Delay
Description:
It will delay the program, for a specified time.
Code example:
Function.Delay(30,S)
| Parameters | ||
|---|---|---|
| Parameter | Type | Description |
| Delay time | Int or Int symbol | Delay time |
| Time unit | String | Time unit |
StopTest
Description:
It will go to EndSub() in main sub.
Code example:
Function.StopTest()
No parameters
NewPart
Description:
It will clear the production window, the results, and prepare the production to run a new product.
Code example:
Function.NewPart()
No parameters
The command is often used together with a label that jumps to the beginning of the program.
Code example:
Function.NewPart()Function.GoLabel(lbl_newPart)
IsValue
Description:
It will convert a symbol to a numeric value if it is possible.
Code example:
Function.IsValue(_D01,_B01,_ST01)
| Parameters | ||
|---|---|---|
| Parameter | Type | Description |
| Result | Double symbol | Value or symbol to use |
| IsValue | Bool symbol | Time unit |
| ValueToTest | String or String symbol | String value to test |
