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  1. Asked: May 26, 2022

    What is the difference between P_TRIG and -|P| in tia portal?

    Anonymous
    Anonymous

    Hi, use P_TRIG to monitior everything in the left of this instruction. It turns to ON for one scan when the entire set of logic to the left goes from off to on use -|P| to monitor a single tag. it turns on one scan when the tag goes from off to on. Best regards

    Hi,

    use P_TRIG to monitior everything in the left of this instruction. It turns to ON for one scan when the entire set of logic to the left goes from off to on
    use -|P| to monitor a single tag. it turns on one scan when the tag goes from off to on.

    Best regards

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  2. Asked: August 9, 2022

    How do I use a global variable inside a function using Python?

    Gwennavia
    Best Answer
    Gwennavia

    Follow this example to create a variable outside functions, and use it inside the functions: MyVariable = 99 #this is a global variable def changeAndPrint_GlobalVariable(): global MyVariable #use global variable in this function with "global" keyword print('Global variable "MyVariable" before changeRead more

    Follow this example to create a variable outside functions, and use it inside the functions:

    MyVariable = 99 #this is a global variable

def changeAndPrint_GlobalVariable():
    global MyVariable  #use global variable in this function with "global" keyword
    print('Global variable "MyVariable" before change = ', MyVariable) # the global variable is printed
    MyVariable = 1  #change the value of the global variable is printed
    print('Global variable "MyVariable" after change = ', MyVariable) # the global variable is printed

def changeAndPrint_LocalVariable():
    MyVariable = 77 #this is a local variable
    print('Local variable "MyVariable" = ', MyVariable) #the local variable is printed

changeAndPrint_GlobalVariable() #call the function
changeAndPrint_LocalVariable() #call the function

    This code will print:

    Global variable "MyVariable" before change =  99
Global variable "MyVariable" after change =  1
Local variable "MyVariable" =  77

     

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    • 1
  3. Asked: August 9, 2022

    How to flatten a list of lists in python?

    Anonymous
    Anonymous

    Hello this code may help you: def flatten_list(original_List): flat_list = [] for sub_list in original_List: for element in sub_list: flat_list.append(element) return flat_list #test original_List=[['a', 'b', 'c', 'd','e'], ['f', 'g', 'h', 'i'], ['j', 'k', 'l'], ['m', 'n', 'o']] print('original listRead more

    Hello

    this code may help you:

    def flatten_list(original_List):
    flat_list = []
    for sub_list in original_List:
        for element in sub_list:
            flat_list.append(element)
    return flat_list

#test
original_List=[['a', 'b', 'c', 'd','e'], ['f', 'g', 'h', 'i'], ['j', 'k', 'l'], ['m', 'n', 'o']]
print('original list = ', original_List)
print('flat list = ', flatten_list(original_List))

     

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  4. Asked: August 8, 2022

    How to calculate the difference between two dates using PHP language?

    Anonymous
    Anonymous

    Please use this code: $first_date = new DateTime("2022-01-01"); $second_date = new DateTime("2023-02-02"); $difference = $first_date->diff($second_date); echo "<difference> = " . $difference->y . " years, " . $difference->m." months, ".$difference->d." days " . "<difference in dRead more

    Please use this code:

    $first_date = new DateTime("2022-01-01");
$second_date = new DateTime("2023-02-02");
$difference = $first_date->diff($second_date);
echo "<difference> = " . $difference->y . " years, " . $difference->m." months, ".$difference->d." days " . "<difference in days> =" . $difference->days . " days ";

    It works as you expect

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  5. Asked: August 8, 2022

    How to concatenate strings together in PHP?

    Anonymous
    Best Answer
    Anonymous
    This answer was edited.

    Hi, This is the syntax to concatenate strings: $text1 = "hello"; $text2 = "world"; $text = $text1 . ' ' . $text2; For your code, use this: function UppercaseText($text_list) { $GlobalText = ""; $TableSize = sizeof($text_list);; for ($i = 0; $i < $TableSize; $i++) { $BigText[] = strtoupper($text_lRead more

    Hi,

    This is the syntax to concatenate strings:

    $text1 = "hello";
$text2 = "world";
$text = $text1 . ' ' . $text2;

    For your code, use this:

    function UppercaseText($text_list) {
	$GlobalText = "";
	$TableSize = sizeof($text_list);;
  	for ($i = 0; $i < $TableSize; $i++) {
    $BigText[] = strtoupper($text_list[$i]);
    $GlobalText .=  strtoupper($text_list[$i]);
    if ($i != $TableSize-1) {
    $GlobalText .= " ";
    }
  }
  //return $BigText;
  return $GlobalText;
}
$text_list = ['the', 'train', 'was', 'late'];
var_dump(UppercaseText($text_list));

    Have a good day

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  6. Asked: August 6, 2022

    How to update SEO Focus keyphrase programmatically of woocommerce product?

    Anonymous
    Best Answer
    Anonymous
    This answer was edited.

    Hi, I think Yoast SEO removed metakeywords. Please see this aricle : Meta keywords Why we don't use them - and neither should you use this key instead : _yoast_wpseo_focuskw You can update it like any post meta. This is the syntax: //the value of the focus key word $myFocusKeyword = "focus keyword eRead more

    Hi,

    I think Yoast SEO removed metakeywords. Please see this aricle :

    Meta keywords Why we don’t use them – and neither should you

    use this key instead :

    _yoast_wpseo_focuskw

    You can update it like any post meta. This is the syntax:

    //the value of the focus key word
$myFocusKeyword = "focus keyword example"; 
 //wrtie the value to postmeta key _yoast_wpseo_focuskw
$updatedKeyword = update_post_meta($post_id, ‘_yoast_wpseo_focuskw’, $myFocusKeyword);

    I tested it and it works fine.

    regards

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  7. Asked: August 6, 2022

    How to fix Error 80A3 Modbus TCP MB_client ?

    Josselin
    Josselin

    Hi, In my case, I used multiple MB_client function blocks to read data. I was using the same client ID for all of them. I changed the connection ID of those differents connections and the problem was fixed. if you have 3 instances of MB_client. you must set unique connection ID per instance Example:Read more

    Hi,

    In my case, I used multiple MB_client function blocks to read data. I was using the same client ID for all of them. I changed the connection ID of those differents connections and the problem was fixed.

    if you have 3 instances of MB_client. you must set unique connection ID per instance

    Example:

    ID = 1  for MB_client_1 instance

    ID = 2  for MB_client_2 instance

    ID = 3  for MB_client_3 instance

    Regards

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