COMFILE Technology's Documentation Library

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.
====== String Variable Control ======

Various actions are available to target HMI string variables.

{{ :comfilehmi:hmieditor_string_variable_control:string_var_control_1.png? }}

===== String Assignment =====

Inserts a string into a string variable. When the action below is executed, ''$str1'' stores the string "Compiling Technology".

{{ :comfilehmi:hmieditor_string_variable_control:string_var_control_2.png? }}

===== String Insertion =====

You can insert the desired string in a specific location in a string.

{{ :comfilehmi:hmieditor_string_variable_control:string_var_control_3.png? }}

If the contents of ''$str1'' was "uvwxy" then it would become "uvabcwxy" after the above action was taken.

===== String Deletion =====

You can delete all or part of the contents of a string variable.

{{ :comfilehmi:hmieditor_string_variable_control:string_var_control_4.png? }}

===== String Conversion =====

If a string variable is in numeric form (for example, "123"), it can be replaced with a number and stored in the HMI variable. The opposite is also possible.

{{ :comfilehmi:hmieditor_string_variable_control:string_var_control_5.png? }}

===== Parse String =====

You can divide the value of a string variable into multiple variables by delimiters. For example, if a string variable named ''$person_info'' contains the value "John,USA,36", it can be stored divided and stored into ''$name'', ''$country'', and ''$age'', respectively.

The user can decide what the delimiter should be (for example, ''/'' or '','' etc.).  If the delimiter can change at runtime, then you can specify the separator by the string variable name.

To convert to numeric values, use numeric variables, not text variables.

{{ :comfilehmi:hmieditor_string_variable_control:string_var_control_6.png? }}

[[comfilehmi:index#screens| Back to ComfileHMI]]