9.4 Function Description
A2H
Function
Val = A2H(A1)
Description
Convert string in the specified address to a hexadecimal number;
Parameters
A1: Source data, only convert the first four digits of string
Val: The value is hexadecimal number.
Example
@W_HDW20=A2H(@W_HDW10) ' convert the string of HDW10 to hex then save in HDW20.
Input: @W_HDW10=255
Result: @W_HDW20=255
✎Note:
A1 needs to be address (such as:@W_HDW000002).
Only [0~1], [a~f] can be converted, others will be converted to 0
A2I
Function
A2I (A1, A2, length, S)
Description
Intercept a string of the specified length from A1, convert it to a single/double word integer and assign this integer to A2.
Parameters
A1: String to be intercepted
A2: The final integer value
Length: intercepts the length of the string
S: Control single or double words.
S=0, indicating an integer single word; S=1, indicating an integer double word.
Return value: none
Example
A2I("@W_HDW200","@W_HDW100",4,0) 'converts a string into a 16-bit (single word) decimal integer
A2I("@W_HDW600","@W_HDW500",4,1) ' converts a string to a 32-bit (double word) decimal integer
Input: @W_HDW200="12345", Result: @W_HDW100=1234
Input: @W_HDW600="12345", Result: @W_HDW500=1234
✎Note:
A1 and A2 need to be address (such as:@W_HDW000002).
Abs
Function
val = Abs(A1)
Description
The absolute value of A1.
Parameters
A1: the data of absolute value, need to be variable.
Val: it is absolute value that is address or variable.
Example
Dim a as integer 'a is defined as integer
a = SignedInt16("@W_HDW0") 'convert the data of @W_HDW0 into signed data.
@W_HDW1 = Abs(a) 'assign the returned absolute value to @W_HDW1
Input: @W_HDW0=-6
Result: @W_HDW1=6
✎Note:
SignedInt16 function is designed to convert unsigned to signed.
ACOS
Function
val = ACos(A1)
Description
To compute the inverse cosine value of A1.
Parameters
A1: floating value, can be an address or variable.
Val: return value is floating, can be an address or variable.
Example
Dim a ,b as floating 'define two float variable a,b
a = 0.5 'assign the designated value to a
b = ACos(a) 'the inverse cosine value of "a" is a radian which assign to variable b.
'to add the following sentence if needed to view the return value:
float2d("@W_HDW200", b) 'float b written into HDW200.
Result: @W_HDW200=1.047
✎Note:
Please call RadToDeg function to convert radian into angle.
AddrStringCompare
Function
val = AddrStringCompare(A1, A2, length)
Description
It is designed to compare the designated length of two character strings. The string value is 1 when the two strings are the same.
Parameters
A1, A2: character string, need to be an address (such as:"@W_HDW000002")
Length: The length of character string.
Val: Return value, 0 or 1.
Example
if AddrStringCompare("@W_HDW10","@W_HDW0",2)=1 then
'compare the character string of HDW10 and @W_HDW0 whether value are 1.
@W_HDW20=1 '@W_HDW20 display 1
else
@W_HDW20=0 '@W_HDW20 display 0
Endif
Input: @W_HDW10="1a2 ", @W_HDW0="1a2 ",
Result: @W_HDW20=1
Input: @W_HDW10="ab2 ", @W_HDW0="12a ",
Result: @W_HDW20=0
Asc
Function
val = Asc(A1)
Description
Return the first character of the string in ASCII value.
Parameters
A1: character string, it can be an address (such as: @W_HDW000002)
val: return value, ASCII value, it could be an address or variable.
Example
@W_HDW10 = Asc("A") 'return the ASCII value of A to HDW10
@W_HDW11 = Asc("a") 'return the ASCII value of a to HDW11
@W_HDW12 = Asc("Apple") 'return the first character A of string Apple to HDW12
@W_HDW13 = Asc("123") 'return the first character ASCII value 1 of string 123 to HDW13.
Result: @W_HDW10 = 65
@W_HDW11 = 97
@W_HDW12 = 65
@W_HDW13 = 49
AsFloating
Function
val = AsFloating(A1)
Description
Convert parameter A1 to a float.
Parameters
A1: integer variable.
val: return float value, can be a variable or address.
Example
Dim a as integer 'define a integer variable {a}.
a = @W_HDW10 'assign @W_HDW10 to a
b = AsFloating(a) 'convert integer a to float then assign to b.
b = b/1.2 'add as following sentence when need to view the return value:
Float 2D("@W_HDW11",b) 'float variable b written into HDW11.
Input: @W_HDW10=24,
Result: @W_HDW11=20.00(set two decimals)
ASin
Function
val = ASin(A1)
Description
Calculate the arcsine value of A1.
Parameters
A1: Float can be an address or variable.
Val: Return float value, can be an address or variable.
Example
Dim a, b as floating 'define two float variable a,b
a = 0.5 'assign the designated value to a
b=ASin(a) 'calculate the arcsine value of a ,assign the radian to b.
'Add the following command if need to view the return value:
float2d ("@W_HDW200", b) 'float variable b written into HDW200
Result: @W_HDW200=0.524
✎Note:
Please call RadToDeg function to convert radian into angle.
AsInteger
Function
val = AsInteger(A1)
Description
Convert parameter A1 to integer value.
Parameters
A1: floating need to be a variable.
Val: the value returned could can be a variable or address.
Example
Dim a as floating 'define floating variable a
a = D2Float("@W_HDW0",a) 'use D2Float function to save the float date of HDW0 in a
b= AsInteger(a) 'convert the float a into integer, the return value assigned to b
@W_HDW10=b 'save b to HDW10
Input: @W_HDW0=20.12,
Result: @W_HDW10=20
AsString
Function
val = AsString(A1)
Description
Convert parameter A1 to a character string.
Parameters
A1: not string parameter, it can be a variable.
Val: return string value, variable or address.
Example
Script 1:
a=123 'assign a value to a
b=234 'assign a value to b
c=AsString(a)+AsString(b) 'convert a and b to string then add up the two strings ,assign the result to c.
@W_HDW0=c 'assign c to HDW0
d=a+b 'plus a with b
@W_HDW100=d 'assign d to (HDW100)
Result: @W_HDW0=123234
@W_HDW100=357
Script 2:
W2S("@W_HDW200","@W_HDW300","02d")
W2S("@W_HDW210","@W_HDW400","02d")
W2S("@W_HDW220","@W_HDW500","02d")
@W_HDW0=AsString(@W_HDW300)+AsString(@W_HDW400)+AsString(@W_HDW500)
Input: @W_HDW200=12,@W_HDW210=34,@W_HDW220=56
Result :@W_HDW300=12,@W_HDW400=34,@W_HDW500=56,@W_HDW0=123456
✎Note:
Ensure the data always is two words; otherwise occur error. reference the other chapter of W2S function
ATan
Function
var = ATan(A1)
Description
Return an arctangent value, the radian ranges -pi/2 to pi/2.
Parameters
A1: Can be float, address or variable.
Val: radian of return value.
Example
@W_HDW20= Atan (@W_HDW10) 'save the arctangent value of (HDW10) to (HDW20)
Input: @W_HDW10=1.000,@W_HDW20=0.785
✎Note:
Please call RadToDeg function convert radian to angle.
ATan2
Function
val = ATan2(A1,A2)
Description
Return the arctangent value of A1/A2, radian range
Parameters
A1, A2: Address or variable.
Val: returned value is a radian, range -pi to pi.
Notice: ATan2 use sign of two parameters to define the quadrant of return value.
Example
@W_HDW20= ATan2 (@W_HDW10,@W_HDW12) 'save the arctangent value of (HDW10/HDW12) to (HDW20).
Input: @W_HDW10=1.0,@W_HDW12=1.0,
Result: @W_HDW20=0.785
✎Note:
Please call RadToDeg function convert radian to angle.
B2W
Function
B2W(A1, A2, length)
Description
Convert an array (begins with A2, unit: byte, to another array (begins with A1, unit: word).
Parameters
A1: Saving address after converting
A2: Address of the value be converted
Length: The length of conversion
Return value: None
Example
B2W(@W_HDW100,@W_HDW10,2) 'convert (@W_HDW10) to the length of 2,save as the result that begins with @W_HDW100.
Input: @W_HDW10=1A2B
Result: @W_HDW100=2B
@W_HDW101=1A
✎Note:
A1 and A2 need to be address(e.g.: @W_HDW000002);
Length could be address or variable;
This is a subprogram; it has no returned value.
BCD
Function
val = BCD(A1)
Description
Convert A1(binary) to BCD, save the result as return value.
Parameters
A1: The binary be converted; it can be an address or variable.
Val: Return value, BCD code; it can be an address or variable.
Example
@W_HDW20=BCD(@W_HDW10) 'convert HDW10 (binary) to BCD code, then save in (HDW20)
Input: @W_HDW10=11111111(binary)
Result: @W_HDW20=255
✎Note:
Return value is a word; it hexadecimal corresponds to BCD code.
Beep
Function
(Beep)
Description
Enable buzzer
Parameters
None
Example
if @B_HDX100.0=1 then 'beep when the bit switch HDX100.0 set ON
(beep)
endif
Result: HMI beep when bit switch HDX100.0 set ON.
BIN
Function
Val = BIN(A1)
Description
Convert A1 (BCD) into binary, save the result in return value.
Parameters
A1: The BCD code is converted; it can be address or variable.
Val: Return binary value,it can be address or variable.
Example
@W_HDW20=BIN(@W_HDW10) 'convert HDW10(BCD) to binary, save the result in (HDW20)
Input: @W_HDW10=255
Result: @W_HDW20=11111111 (binary)
BMOV
Function
BMOV(A1, A2,length)
Description
Copy data with a designated length from source address A2 to A1.
Parameter
A1: saving address;
A2: source address;
length: operating length;
Example
@W_HDW20 = 20 'assign value to HDW20
@W_HDW21 = 21 'assign value to HDW21
@W_HDW22 = 22 'assign value to HDW22
BMOV(@W_HDW10,@W_HDW20,3) 'assign the word address of HDW20, HDW21, HDW22 to HDW10, HDW11, HDW12
Result:
@W_HDW10 = 20
@W_HDW11 = 21
@W_HDW12 = 22
✎Note:
A1 and A2 need to be address
Length can be an integer variable or an address. When destAddr and srcAddr are PLC (external device) addresses, the length range is 1-2048, and the 2049th address would not be operated when the range is exceeded.
When destAddr and srcAddr are HMI addresses, the length range is 1-4096, and This function is invalid when out of range.
Chr
Function
val = Chr(A1, A2, ...)
Description
Convert integer parameter into correspond ASCII character, return the character string.
Parameters
A1, A2....: converted integer; it can be an address or variable.
Val: returned value, can be an address or variable.
Example
@W_HDW100=Chr(@W_HDW20, @W_HDW21, @W_HDW22, @W_HDW23, @W_HDW24)
'convert the value of(HDW20, HDW21 ,HDW22, HDW23, HDW24) to ASCII character, assign the value to (HDW100)
Input 72,69,76,76,79 step by step according to HDW20, HDW21, HDW22, HDW23, HDW24,
Result returns HELLO to (@W_HDW100).
Clrb
Function
ClrB(A1)
Description
Set the bit of A1 as FALSE (0).
Parameters
A1: System address(bit)
✎Note:
subprogram has no return value.
Example
ClrB(@B_HDX100.0) 'assign 0 to (@B_HDX100.0)
Constant
Description
Script supported constant, users can use on script:
pi = 3.14159265358979321
TRUE = 1
FALSE = 0
Example
Dim a as integer 'define integer a
a = RadToDeg(pi) 'convert radian pi to angle then assign to a,RadToDeg function is used to convert radian to angle.
@W_HDW11 = a 'assign a to (HDW11)
Result: @W_HDW11=180
CopyFile
Function
A6=CopyFile(A1,A2,A3,A4,A5)
Description
Copy the A3 file from the A1 directory to the A2 directory according to the format of A4 and A5, and write returned value status to A6.
Parameters
A1: the source path of the file to be copied.
A2: target path.
A3: the name of the file to be copied.
A4: copy type (0: copy file, 1: copy directory).
A5: Whether to overwrite the file with the same name when copying (0: Yes, 1: No).
A6: returned value.
0: copy failed
1: copy succeeded
2: Parameter error
3: U disk does not exist
4: SD card does not exist
5: Path error
Example
(1) Copy a single file:
@W_HDW100 = " test.csv"
CopyFile("UDisk/Test","Flash/Test","test.csv",0,0) 'Copy the Test.csv file in the UDisk/Test directory to the Flash/Test directory.
Can also be written as CopyFile("UDisk/Test","Flash/Test",@W_HDW100,0,0)
(2) Copy the entire directory file:
CopyFile("UDisk/Test","Flash/Test","",1,0) ' Copy the files in the UDisk/Test
directory to the Flash/Test directory.
✎Note:
1) Both source and destination paths need to begin with UDisk or Flash or SDCard;
2) A1 and A2 could be string (requires double quotes) or variable, maximum character length 127 allowed in path;
3) A3 could be a string, such as: [FileName] (requires double quotes); or address, such as: @W_HDW100 (no need to add double quotes);
4) A4 and A5 could be values, addresses or variable;
5) A6 could be address or variable.
Cos
Function
Val = Cos(A1)
Description
Return a cosine value of an angle.
Parameters
A1: a float radian of angle, it can be an address or variable.
Val: return float value, it can be an address or variable.
Example
Dim a, b as floating 'define float a, b
b = pi/3 'convert the value of HDW11 to float and assign to 'b'.
a=Cos(b) 'return the cosine value of'b' and assign the result to 'a'.
'to add the following sentence if need to view the return value:
Float2D("@W_HDW20",a) 'the float value of a written into HDW13.
Result: @W_HDW20=0.5
✎Note:
Please call RadToDeg function convert radian to angle.
D2F
Function
D2F (A1, A2) or A1= D2F (A1, A2)
Description
Convert the 32-bit integer format data to float then output the result.
Parameters
A1: required data, begin with"@";
A2: source data, begin with"@";
Example
D2F(@W_HDW2,@W_HDW0) 'convert the double word (HDW0) to float, save the result to (HDW2).
@W_HDW2=D2F(@W_HDW2,@W_HDW0) 'convert the double word (HDW0) to float, save the result to (HDW2).
Result: HDW0=100, HDW2=100
D2Float
Function
F= D2Float("A1",F)
Description
Convert the designated value to floating then assign to variable.
Parameters
A1: Source data;
F: User-defined floating variable
Example
dim F as floating 'define F as floating
F=D2Float("@W_HDW10",F) 'assign the value of (HDW10) to F in floating
Float2D("@W_HDW12",F) 'copy the floating value of F to HDW12 register,use to display result.
Result: HDW10=200,
HDW12=200.
✎Note:
A1 needs to be address;
D2Int
Function
A2= D2Float("A1",A2)
Description
Output the 32-bit integer in the form of integer.
Parameters
A1: Source data can only be the HMI internal or external register starting with "@".
A2: Target data can only use the integer variable defined by script.
Example
dim var1 as integer 'define var1 as integer
var1=D2Int("@W_HDW0",var1) 'Read out the 32-bit integer in HDW0 and save the result in var1.
HDW0=9999999,
Result: Var1=9999999
DbToCSVFile
Function
A8=DbToCSVFile(A1,A2,A3,A4,A5,A6,A7)
Description
Convert db (database file) file to csv format and export it.
Parameters
A1: db file save path (value is integer);
=0: Alarm record file in HMI flash;
=1: Alarm record file in UDisk (USB flash disk);
=2: Alarm record file in SD card;
=3: Data record file in HMI flash;
=4: Data record file in UDisk (USB flash disk);
=5: Data record file in SD card;
A2: group numer of db file (value is integer);
Used during exporting data record file, the group number could be seen in the data record setting interface;
A3: csv file save path (value is integer);
=0: Save in UDisk (USB flash disk);
=1: Save in SD card;
A4: csv name;
A5: start time of data record in db file(string), consecutive 6 word addresses (the values in the address are year, month, day, hour, minute, second);
A6: end time of data record in db file(string), consecutive 6 word addresses (the values in the address are year, month, day, hour, minute, second);
A7: csv encoding format;
=0 UTF8 format;
=1 GBK format;
A8: returned value;
=0: Failed to export;
=1: Exported;
=2: db file path error;
=3: U disk or SD card does not exist;
=4: csv name error;
=5: db file does not exist;
=6: csv file already exists;
Example
@W_HDW100 = 2018
@W_HDW101 = 12
@W_HDW102 = 25
@W_HDW103 = 19
@W_HDW104 = 10
@W_HDW105 = 30
@W_HDW200 = 2018
@W_HDW201 = 12
@W_HDW202 = 25
@W_HDW203 = 20
@W_HDW204 = 10
@W_HDW205 = 30
Export data record file
DbToCsvFile(3,2,0,"123.csv","@W_HDW100","@W_HDW200",0) ‘In the HMI flash, the group number is 2, and the data records collected in the time of 2010.12.25 19:10:30-2018.12.25 20:10:30 are exported to the 123.csv file in the Udisk in UTF8 format.
Export alarm record file
DbToCsvFile(0,0,0,"456.csv","@W_HDW100","@W_HDW200",1) ‘The alarm records generated in HMI Flash at 2018.12.25 19:10:30-2018.12.25 20:10:30 are exported to the 456.csv file in the Udisk in GBK format.
✎Note:
A1 can be an address or a variable or a value, and the path need to start with UDisk or Flash or SDCard;
A2 can be an address or a variable or a value;
A3 can be an address or a variable or a value, and the path need to start with UDisk or Flash or SDCard;
A4 can be an address or variables or string, and the length of the file name (sum of values, English, Chinese) could not exceed 127;
A5 need to be an address;
A6 need to be an address;
A7 can be an address or a variable or a value;
DegToRad
Function
A2 = DegToRad(A1)
Description
Convert the angle into correspond radian, and display.
Parameters
A1: inputting angle supports address, other variable or floating.
A2: outputting radian supports address, other variable or floating.
Example
Script 1
@W_HDW12=DegToRad(@W_HDW10) 'input angle on (HDW10),convert to correspond redian and copy to (HDW12)
Result: HDW10=180; HDW12=3.14159
Script 2
dim a as floating 'set variable
dim b as floating 'set variable
b=30 'input angle
a=DegToRad(b) 'convert the length of radian and copy to variable {a}
float2d("@W_HDW0", a) 'display the value of floating on(HDW0)
Result: HDW0=0.52360
DIM ... AS ...
Function
Dim "variable" as "date type"
Description
Declare a variable, stable the type of data.
Parameters
Variable: begin with letter, other character can be letter, numbers, underscores ('_'), need to begin with '@' if it is address;
Data type: string, floating, integer;
Example
dim a as integer 'define a as integer
dim @W_HDW0 as floating 'define @W_HDW0 as floating
dim hi as string 'define "hi" as string
Result:
a is integer
@W_HDW0 is floating
hi is string
✎Note:
Use the variable of Dim during running, could not change the type, Dim will be missed if the type of variable is no difined. Variable could be declared in once.
DO ... LOOP
Function
Do [While | Until condition]
[statements]
Loop
or
Do
[statements]
Loop [While | Until condition]
Description
Condition determent instruction.
Do while. loop executes an instruction of block repeatedly when condition is true.
Do until. loop executes an instruction of block repeatedly until condition is false.
Parameters
Condition: determine condition; obtain the expression of True or False.
Statements: execute one or more instructions repeatedly when condition is True or until condition is True.
If condition is true, all statements are executed until the Wend statement is encountered. Control then returns to the While statement and condition is again checked. If condition is still True, the process is repeated. If it is not true, execution resumes with the statement following the Wend statement.
Example
dim i as integer 'end DO loop when i=100
do while i<100
i=i+1
@W_HDW0=i
loop
Result: HDW0=100
End
Function
Terminates the script immediately.
Description
End the execution of script.
Parameters
Statement: Judging condition, use with IF together. end script when meet condition.
Example
If a = 10 Then End 'end script when a=10.
Result: End the script program.
Exp
Function
A1=Exp(A2)
Description
Returns the power value of e (natural logarithm), save the outputting result to A1, e=2.71828182846.
Parameters
A1: the goal date: the power floating value of returning, need to begin with '@'(e.g.@W_HDW10);
A2: Source data, natural exponential function, need to be integer or variable. Could not not begin with the address of "@"(e.g.@W_HDW10)
Example
dim a as integer 'define a as integer
a = @W_HDW2 ' assign the value of (HDW2) to variable a
@W_HDW0= Exp(a) 'exponential is the value of (HDW2),save result to(HDW0)
Result: HDW2=2,
HDW0=7.38905600
F2D
Function
F2D (A1, A2)
Description
Convert a 32 bit floating to integer format, then output the result.
Parameters
A1: Destination, the value can be an address(e.g.@W_HDW12).
A2: source date, it can be an address or other variable.
Example
F2D(@W_HDW12,@W_HDW10) 'convert the floating of (HDW10) to integer, save in (HDW12).
Result:
HDW10=200,
HDW12=200
F2S
Function
F2S (A1,A2,s1)
Description
Output a format of floating that in the type of string.
Parameters
A1: Source address, used to store floating, the value is an address(e.g.@W_HDW200);
A2: Destination address, used to store string after converted, value is an address(e.g.@W_HDW100).
S1: the format of displaying goal data. such as the format of 03.03f,f, used for outputting a single-precision in the form of decimal.m.nf:means m column and n decimals when outputting.
Example
F2S("@W_HDW200", "@W_HDW100", "03.03f") '(HDW200) is floating input,(HDW100) is text output;
Result: HDW200=1.22365,
HDW100=1.224
FILL
Function
FILL (A1, A2, A3)
Description
Write the same value to designated address constantly.
Parameters
A1: The beginning address, it can be an address (e.g.@ W_ HDW25);
A2: Source data, it needs to be written in continuous value, the value can be an address, variable or constant;
A3: The number of operation, writing address number, it can be an address, variable or constant;
When the PLC (external device) address is used in this function, the length range is 1-2048, and only the 2048th address can be operated when the range is exceeded.
When the HMI internal address is used in this function, the length range is 1-4096. If the function is out of range, then the function is invalid.
Example
FILL (@W_HDW25, 10, 3) 'At the beginning three address of @W_ HDW25 is 10.
Result: At the beginning three address of @W_ HDW25 is 10, @W_ HDW25=10, @W_ HDW26=10, @W_ HDW27=10.
Float2D
Function
Float2D (A1,A2);
Description
Copy floating value to the address.
Parameters
A1: Goal address, the value need to be address (e.g.@W_HDW102);
A2: Source data, it can be floating;
Example
dim f as floating 'define f as floating
f=1.1 'assign a designated value to f
Float2D ("@W_HDW102",f) 'assign the value f to HDW102
Result: HDW102=1.1
For. to. step. next
Function
For counter = start to end Step
[Statements]
Next
Description
Execute a command repeatedly for designated times.
Parameters
counter: Work as a variable for loop counter;
start: The start value of counter, it could be any variable type or expression;
end: The end value of counter, it could be any variable type or expression;
step: Every loop, the changed value of counter is step value, step default if it is not designation.
step default as below
if start>end, step default is 1;
if start< end. It could be any variable type or expression;
statements: Between For with Next, execute instruction set of designated times;
Set a loop of for...Next in another loop, it can nest call the loop of for...Next. Different from a while, for only search once value from end. Empty for loop will be ignored, and could not delay time.
Example
'Use HDX2.0 to trigger the loop
for i=100 to 0 step -5 ' set the start is 100,end is 0,subtract 5 every time, execute 20 times totally.
@W_HDW100=@W_HDW100+1 ' execute (HDW100+1) 21 times totally, the final result is 21.
Next
@B_HDX2.0=0
Result: HDW100=21
Function
Function
Function name (arglist)
statements
name = expression
statements
End Function
Description
Unlike internal function, it needs to declare the name, parameter, code of the function.
Parameters
Name: function name.
arglist: stands for the variable list of parameter, this parameter will be entered during calling function. use comma to separate.
statements: a set of code in running function body.
Notice: it could not define a function program at any other program body. Write name first and then follow with parameter list, when calling function. Declare function need to before be calling. in the internal function body, it could be assigned to a function name from returned value at any place. Return value is 0 if not assign function name. Functions can recursive, but it may lead to stack overflow.
Example
Function sincos (angle as floating)
sincos = sin(angle) + cos(angle)
End Function<
........
@W_0002 = sincos(pi/2)
........
GetServerDelayInfo
Function
A3=GetSerVerDelayInfo(A1,A2)
Description
Convert string A1 to hexadecimal number.
Parameters
A1: The starting address, save the delay data of each server (10 consecutive addresses, the last 7 addresses are reserved), when the server testing fails, the value in the corresponding address is -1. The unit is ms (signed decimal number).
Address | Description |
A1 | Delay data of the server configured in [Project Settings] |
A1+1 | Delay data of Server 1 |
A1+2 | Delay data of Server 2 |
A2: Server test result address
Address | Description |
0 bit | Set ON, Server configured in [Project Settings] fails |
1st bit | Set ON, Server 1 fails |
2nd bit | Set ON, Server 2 fails |
3rd ~ 10th bits | Reserved |
11th bit | Set ON, network error, network port interface failure |
A3: Returns the preferred server number or network status (automatically selects the server with the best connection network status).
=0: Server configured in [Project Settings];
=1: Server 1;
=2: Server 2;
=3~10: Reserved;
=100: Try again later (two test intervals need to wait 30 seconds);
=101: Failed to test Server;
Example
@W_HDW200 = GetServerDelayInfo("@W_HDW100", "@W_HDW50")
Result:
HDW100: Delay data of the server configured in [Project Settings]
HDW101: Delay data of Server 1
HDW102: Delay data of Server 2
HDX50.0=1: Server configured in [Project Settings] fails
HDX50.1=1: Server 1 fails
HDX50.2=1: Server 2 fails;
HDX50.11= 1: network error, network port interface failure;
When the server signal is stable, the optimal server is automatically connected according to the network status @W_HDW200. When the server connection is abnormal, @W_HDW200=101, the server test fails or the test is abnormal.
✎Note:
The time interval between executions of this function could not be less than 30 seconds, otherwise an error will occur.
Goto
Function
Goto label
Description
Go to the designated row without any condition in a function body.
Parameters
Label: target character, start with letter in row label, end with(:)of any string.row label has no sensitive to the format of letter.
Example
Goto sd 'go to the row which start with "sd";
Result: Go to sd row.
✎Note:
Goto only can jump into the internal function that visible row.
H2A
Function
A1 = H2A (A2)
Description
Convert a binary (16-bit) to hexadecimals (4-bit) of ASCII.
Parameters
A1: Returned value, string, it could be an address or variable.
A2: Binary is needed to be converted, the value could be a address or variable.
Example
@W_HDW100= H2A (@W_HDW0) ' convert the binary of (HDW0) to character and save in (HDW100).
Result: HDW0=200,
HDW=100
HmiRegoperator
Function
HmiRegoperator (A1,A2,A3,A4,A5,A6)
Description
Data of Upload/ Download address
Parameters
A1: The start address of target
A2: Length, address length, unit: word, range: 1~1000
A3: storage
A3=0, select USB flash disk as storage, and save files in Root directory;
A3=1, select SD card as storage, and save files in Root directory;
A4: File name address, it need to be address such as "@ W_HDW2"
A5: Upload / download data
A5=0, save the data in the specified address as a file and store the file in the root directory;
A5=1, Read data from file and it woule be written into specified address;
A6: State display, it needs to be address, such as "@ W_HDW2";
A6=1, Normal
A6=2, USB flash disk/ SD card does not exist
A6=3, File doesn’t exist;
A6=4, File name error;
A6=5, Check error
A6=6, Abnormal communication;
A6=7, HUW register is not allowed;
A6=8, Address length range error (address length range: 1-1000);
Example
Script 1
HmiRegoperator("@W_HDW0",10,0,"@W_HDW2000",0,"@W_HDW3000") ’The data in HDW0-HDW10 is saved as a file, the file name is set by HDW2000 and stored in a USB flash disk.
Script 2
HmiRegoperator("@W_HDW0",10,1,"@W_HDW2000",1,"@W_HDW3000")
Read the values from files which stored in the SD card (files named by the HDW2000), and write these values to the HDW0-HDW10.
✎Note:
1) The length of the file name is less than 32 characters, and the file name consists of numbers and letters (the file name does not meet this standard; WECON does not guarantee the accuracy of the data).
2) The interval of download function operation should be 5s or more.
3) A1 need to be address such as “@W_HDW2”.
4) Please use “Character Input/Display” object for it, and the file name consists of numbers and letters, could not be punctuated characters, maximum character length 32 allowed.
Hypot
Function
Var = Hypot (expr1, expr2)
Description
Calculate the value of the hypotenuse of a right triangle.
Parameters
expr1, expr2: Source data, the two sides of right triangle. it need to be address;
Var: Destination data, it need to be address;
Example
@W_HDW200=Hypot (@W_HDW105,@W_HDW108) ' input the value of right-angle side at (HDW105) and (HDW108),and assign the result of the hypotenuse to (HDW200).
Result: HDW105=3,
HDW108=4,
HDW200=5
✎Note:
hypot function could support integer and floating when the format of source data and target data are the same.
IF ... THEN ... ELSE ... END IF
Function
If condition Then
Statements
[Else
else statements]
End If
Description
Conditional judgments instruction. When the [Condition] defined by [IF] is TURN, the operation following [THEN] is performed. When [Condition] is FALSE, the operation after [ELSE] is executed.
Parameters
condition: any expression, the value could be true or false.
statement: execute the instruction block when condition is true.
else statement: execute the instruction block when condition is false.
Example
if @W_HDW105=200 then ' judging condition: whether the value of (HDW105) is 200
@W_HDW108=1 'the value of (HDW108) is 1 if fulfil condition
else
@W_HDW200=1 ' the value of (HDW200) is 1 if not fulfil condition.
Endif
Result:
HDW105=199;
HDW108=0;
HDW200=1
InStr
Function
var = InStr ("str1", "str2")
Description
Returned the position of str1 in str2(start with 0), set -1 if no result.
Parameters
str1: source string, it could only be string, not address;
str2: target string, it could only be string, not address;
var: Returned value, the format of data needs to be string;
Example
dim a as floating
a = InStr ("Hello", "o") ' calculate the position of"o"in"hello".
float2d ("@W_HDW0",a) ' Returned value is 4.(start with 0)
Result: HDW0=4
Int2D
Function
Int2D("A1",A2)
Description
Write the 32-bit integer into the target address
Parameters
A1: Source data could only be the HMI internal or external register starting with "@".
A2: Target data could only use the integer variable defined by script.
Example
dim var1 as integer 'define var1 as integer
Int2D("@W_HDW0", var1) 'Read out the 32-bit integer in var1 and save the result in HDW0 .
var1=9999999,
Result: HDW0=9999999.
InvB
Function
InvB (A1)
Description
The state of inverse bit, it is a sub function, no returned value. Achieve the state of switching address constantly.
Parameters
A1: it is an address.
Example
InvB (@B_HDX0.1) 'switch the state if (HDX0.1).
Result: Switch the state of (HDX0.1) constantly.
IsFloating
Function
A2=IsFloating (A1)
Description
Decide whether a parameter is floating, return true if it is floating, otherwise return FALSE.
Parameter
A1: source data, variable;
A2: target data, variable;
Example
dim a as integer
dim b as floating
b= D2float ("@W_HDW200",b) 'assign the value of (HDW200) to b
a = IsFloating (b) 'judge whether b is floating or not
@W_HDW300=a 'save the result to (HDW300)
Result: HDW300=1
IsInteger
Function
A2= IsInteger (A1)
Description
Determine whether a parameter(A1) is integer, return TRUE if the parameter is integer, otherwise return FALSE.
Parameter
A1: Source date, it is variable or number;
A2: Target date, need to be variable, it could not be system address ;
Example
dim a as integer
a = IsInteger (20) 'determine whether 20 is integer
@W_HDW300=a ' display the result on (HDW300)
Result: HDW300=1
IsString
Function
val = IsString(expr)
Description
Determine whether a parameter is string, return TRUE if it is string, otherwise return FALSE.
Parameters
Expr: source string, it could be a variable or string, not address;
Val: target date, the result need to be variable, could not be address;
Example
dim a as integer 'define variable, display the result;
a= isstring ("hello") 'determine whether"hello"is string;
@W_HDW0=a 'assign the result to (HDW0)
Result: HDW=1
Lcase
Function
A2 = LCase(A1)
Description
Convert all parameters to lowercase strings.
Parameters
A1: source string, it could be an address or variable;
A2: outputting string, it could be an address or variable;
Example
@W_HDW33 = LCase (@W_HDW25) 'input source sting on (HDW25), convert it to destination string and display the result on (HDW33);
Result: HDW25=HELLO
HDW33=hello
Left
Function
Val =Left (String, Length)
Description
Return a string of the specified length from the left side of parameter.
Parameters
String: source string; it could be an address or string.
Length: return the number of character. It could be an address, integer or variable. Return empty string if length<1. return the whole string if length not less than the character number of string.
Val: destination string, outputting string, it could be an address or variable.
Example
@W_HDW30=Left (@W_HDW36, @W_HDW40) '(HDW36) used to input source string,(HDW30) used to display the string result;
Result: HDW36=hello,
HDW40=2,
HDW30=he
Len
Function
Length=Len(String)
Description
Return the string length.
Parameters
String: source string, it could be a address or string;
Length: target data, return value, it could be a address, variable, integer or floating;
Example
@W_HDW30=Len (@W_HDW36) 'count the character number of (HDW36), save the result to (HDW30);
Result: HDW36=hello
HDW30=5
Log
Function
a= Logn (x)=Log(x)/Log(n)
Description
Log function:return the natural logarithm of the value.
Parameters
a: source date,it could be a variable, but it could not be address;
x, n: source date, it could be a variable, but it could not be address;
Example
Dim a as integer 'define a as integer;
Dim b as integer 'define b as integer;
Dim c as integer 'define c as integer;
b=@W_HDW10 'assigns a value to b
c=@W_HDW20 'assigns a value to c
a=Log (b)/Log(c) 'calculate logarithm
@W_HDW0
=a 'assign the result to (HDW0)
Result: HDW10=27,
HDW20=3,
HDW0=3
Log10
Function
a=Log10(x)= Log(x)/Log(10)
Description
Log function: return the natural logarithm.
Parameters
A: target data, result could be variable, could not be address;
x: source data, it could be variable that needs to be the multiples of 10, can’t be address
Example
dim a as integer 'define a as integer
dim b as integer 'define b as integer
b=@W_HDW10 'assign a value to b
a= Log (b)/Log(10) 'result
@W_HDW0=a 'assign the result to (HDW0)
Result: HDW10=100,
HDW0=2
LTrim
Function
val=LTrim("string")
Description
Remove the left empty part of the string and return.
Parameters
Val: Destination string, it could be either a variable or address;
string: Source string, it could be either a variable or address;
Example
dim a as string
a=Ltrim("hello")
@W_HDW103=a
Result: HDW103=hello
MAX
Function
A1=MAX(A2,A3)
Description
Compare the value of A2 and A3, assign the greater value to A1.
Parameters
A1: Return value (used to store the greater value between A2 with A3).
A2: The first comparison value.
A3: The second comparison value.
✎Note:
A1,A2,A3 should be only used in unsigned integer or unsigned address.
Example
DIM A1 as integer
@W_HDW106=10 'assign the value to (@W_HDW106), unsigned decimal word.
@W_HDW107=5 'assign the value to (?@W_HDW107),unsigned decimal word.
A1 = Max(@W_HDW106,@W_HDW107)
@W_HDW105 = A1
Result: @W_HDW105 = 10
Mid
Function
A1=mid(A2, start, length)
Description
Returns a string contain a specified characters length from a string.
Parameters
A1: string contains the selected characters, it needs to be a string
A2: string to be selected, it needs to be a variable or address
Start: the start position of string, it needs to be a variable or address, it means that count begin with 0.
Length: the designated length of string, maximum character length 127 allowed
Example
DIM A1 as string
A1 = Mid("hellokitty",1,2) 'select the string of in "
@W_HDW106=A1
Result: @W_HDW106 'display "el" on text input and output window
MIN
Function
A1=MIN(A2,A3)
Description
Compare the value of A2 and A3, assign the smaller value to A1.
Parameters
A1: Return value (used to store the snaker value between A2 with A3).
A2: The first comparison value.
A3: The second comparison value.
Example
DIM A1 as integer
@W_HDW106=10 'assign the value to (@W_HDW106), unsigned decimal word.
@W_HDW107=5 'assign the value to (@W_HDW107), unsigned decimal word.
A1 = Min(@W_HDW106,@W_HDW107)
@W_HDW105 = A1
Result: @W_HDW105 = 5
✎Note:
A1, A2,A3 only used in unsigned integer or unsigned address.
MSeconds
Function
A1=MSeconds( )
Description
A1 is used to display the current milliseconds of system.
Parameters
A1: used to store the current milliseconds of system.
Example
Result: @W_HDW0 will generate the time value of changing milliseconds unit.
✎Note:
A1 is unsigned integer variable or unsigned integer address.
NewNoAddr
Function
A1= NewNoAddr (A2, length)
Description
At the basic of source address A2, offset designated length, obtain a new address A1.
Parameters
A1: address after offsetting, it needs to be variable.
A2: source address, it needs to be address(e.g.:"@W_HDW000002")
Length: offset length
Example
DIM A1 as string
A1=NewNoAddr("@W_HDW0",50) '(HDW0) offsets 50 words address (16 bit), and save the result to A1
@W_HDW1=A1 '(HDW50) save in A1
Result: (@W_HDW1) character input/display will show @W_HDW50
NewStatAddr
Function
A1= NewStatAddr (A2, length)
Description
At the basic of source address A2, offset the designated length, to obtain a new station A1.
Parameters
A1: The address after offsetting, it needs to be variable.
A2: Source station address, it needs to be address (e.g.:"@W_1:10").
Length: offset length
Example
DIM A1 as string
A1=NewStatAddr("@W_1:10",2) 'address 10 of station address 1 that offset 2 station addresses, then save the result to A1
@W_HDW1=A1 'address 3:10 is saved in A1
Result: @W_HDW1 character input/display will show @W_3:10
NStringCompare
Function
A1= NStringCompare (A2, A3, length)
Description
Compare whether the designated length of two strings is the same, return 1 to A1 if yes, otherwise return 0.
Parameters
A1: Returned value (compare the designated length of two strings, display 1 when equal, else 0). It could be an address or variable.
A2: the address of string to be compared, it needs to be address.
A3: source string, it needs to be variable or constant string.
Length: string length to be compared
Example
@W_HDW1= NStringCompare("@W_HDW0","87654",5)
if @W_HDW1=1 then
@B_HDX10.0=1 'result: HDX10.0 set ON 'when the two strings are the same.
endif
if @W_HDW1=0 then
@B_HDX10.0=0 'result:HDX10.0 set OFF 'when not equal.
Endif
Operator
Operation | Symbol | Example | Return type |
Addition | + | A1=A2+A3 | Return type depending on the type of variable or address of the addition |
Subtraction | - | A1=A2-A3 | Return type depending on the type of variable or address of the subtraction |
Multiplication | * | A1=A2*A3 | Return type depending on the type of variable or address of the multiplication |
Division | / | A1=A2/A3 | Return type depending on the type of variable or address of the division |
Remainder | Mod (%) | A1=A2 mod A3 A1=A2%A3 | Returns the remainder of the division of two numbers. The type of the return value is an integer |
Logical OR | Or(|) | A1=A2 or A3 A1=A2|A3 | Returns the result of a logical OR. The type of the return value is an integer. |
Logic AND | And (&) | A1=A2 and A3 A1=A2&A3 | Returns the result of a logical AND. The type of the return value is an integer. |
Logical XOR | Xor (^) | A1=A2 xor A3 A1=A2^A3 | Returns the result of a logical XOR. The type of the return value is an integer. |
Logical reversal | Not (!) | A1=not A1 A1=A2!A3 | Returns the result of a logical reversal. The type of the return value is an integer. |
Left shift | << | A1=A2<<A3 | Shift the value of A2 to the left by A3 digits and return the displacement result. The type of the return value is an integer. |
Right shift | >> | A1=A2>>A3 | Shift the value of A2 to the right by A3 digits and return the displacement result. The type of the return value is an integer. |
Bit reversal | ~ | A1=~A1 | Perform a bit reversal on a value. The type of the return value is an integer. |
PI_GetTickCount
Function
PI_GetTickCount (A1, A2)
Description
Write the starting time to the set address as a 32-bit integer.
Parameters
A1: Source data could only be the HMI internal or external register starting with "@".
A2: =0: Unit of time for returning 0ms;(the value will become 0 after 49.7 days and so on)
=1: Unit of time for returning 10 ms;(the value will become 0 after 497 days and so on)
=2: Unit of time for returning 100 ms;(the value will become 0 after 4970 days and so on)
=3: Unit of time for returning 1000ms;(the value will become 0 after 49700 days and so on)
✎Note: If user restarts the hmi,all value will be 0.
Example
PI_GetTickCount("@W_HDW100",0) 'save the starting time in HDW100 address as a 32-bit integer.
Result: HDW100=123456(different returned data for each moment)
Power
Function
var = power (expr1, expr2)
Description
The value of [expr2] to the power of [expr1] will be assigned to Var.
Parameters
var: returned value.
expr 1: base number.
expr 2: power number.
Example
Dim a as floating
a=power (2, 3) 'the value of 3 to the power of 2 is assigned to a.
Float2D("@W_HDW10",a) 'assign the float value of a to @W_HDW10
Result: @W_HDW10=8
PrintText
Function
PrintText(A)
Description
Print the content of A or locates in A.
Parameters
A: source data. A could be a variable or a string ( text information),not a register address.
Example
1) A is text information
PrintText("HMI 8070”)
Result: Printer will print out “HMI 8070”
2) A is variable
Dim a as string
a= “HMI 8070”
PrintText(a)
Result: Printer will print out “HMI 8070”
✎Note:
source data length range:1-128 characters.
RadToDeg
Function
Var= RadToDeg(expr)
Description
Convert radiant value to degree, then assigned to Var.
Parameters
Var: return degree value.
expr: input radiant value.
Example
Dim a as floating
a = RadToDeg(pi) 'assignt the degree value of ? to a.
Float2D("@W_HDW4",a) 'assign the degree value to address "@W_HDW4".
Result: @W_HDW4=180
RAND
Function
Var = rand(expr1)
Description
Generate a random number.
Parameter
Var: generated random number.
Expr1: the base number.
Example
@W_HDW0=rand(@W_HDW0) 'Set the value of address@W_HDW0 as the base number to generate random number.
Result: @W_HDW0 random number.
ReadAddr
Function
Word = ReadAddr(A1)
Description
Assigned the red value from A1 to word.
Parameter
Word: return value
Example
Dim word as integer
@W_HDW100=10
word = ReadAddr("@W_HDW100") 'Read the value of address @W_HDW100 and assign to word.
@W_HDW200=word
Result: @W_HDW200=10
Right
Function
val = Right (string, length)
Description
Return a string of the specified length from the right side of parameter.
Parameter
string: the operated string.
length: the designated number of byte required to return, count from the right side.
Example
@W_HDW103= Right("Hello", 3) 'return "llo"
Result: @W_HDW103="llo"
RTrim
Function
val = RTrim(str)
Description
Clear the empty part on the right side of string [str], then assign the empty part to val
Parameter
val: returned value.
str: the string needs to be operated.
Example
@W_HDW0 = RTrim(" -Hell o- ") 'retrun" -Hell o-"
Result: @W_HDW0 display " -Hell o-"
S2F
Function
S2F (A1,A2,s1)
Description
S2F is used to translate the string stored in A1 to floating and store the floating number in A2 according to the data format shown in A2.
Parameters
A1: initial data address, used to store the string data, it should be the internal address of HMI or external address that started with “@”,like @W_HDW0
A2: destination address, used to store the floating number data. It should be the internal address of HMI or external address that started with “@”,like @W_HDW0
S1: display format of target data, for example m.nf, m means the length of string is m, n means the decimal places, f is the format used to output single precision number. (Since the floating point number is up to 7 digits, the decimal point in the string is also a bit, so it is recommended that the length should not exceed 8 bits)
Return value: none
Example
The lengTh of string is 8
@W_HDW0="12345.67" 'Assign the string “12345.67" to HDW1
S2F("@W_HDW0","@W_HDW100",8.2f) 'read string "12345.67 " from HDW0 and convert it into a floating point with 2 decimal places, store in the HDW100 .
Result: @W_HDW100 address displays “12345.67”.
The length of string is less than 8
@W_HDW0="1234.5 67" ‘assign the string“1234.567”to HDW1
S2F("@W_HDW0","@W_HDW100",6.2f) ' read string "1234 .5" from HDW0 and convert it into a floating point with 2 decimal places, store in the HDW100 .
Result: the floating value of @W_HDW100 is 1234.50
The length of string is more than 8
@W_HDW0="12345.6789" ’assign the string “12345.6789” to HDW1
S2F("@W_HDW0","@W_HDW100",8.2f) ' read string "12345 .67" from HDW0 and convert it into a floating point with 2 decimal places, store in the HDW100 .
Result: the floating value of @W_HDW100 is 12345.67
SetB sub
Function
SetB(A1)
Description
Set the bit A1 ON.
Parameters
A1:Bit address
Example
SetB(@B_HDX100.0) 'Set the address {@B_HDX100.0} ON
Result: @B_HDX100.0=1
SetKeyMap
Function
SetKeyMap(A1,A2,A3)
Description
The key values of the keyboard are mapped so that multiple keyboard buttons perform the same function.
Parameters
A1: The starting address of the source key; It needs to be an address format;
A2: The starting address of the mapped value; It needs to be an address format;
A3: Mapping length (continuous length of mapped address); It needs to be a value, the maximum mapping range: 108 key values;
Example
@W_HDW3000 = 3 ' The starting address of the source key
@W_HDW3001 = 5
@W_HDW3002 = 7
@W_HDW3003 = 9
@W_HDW3004 = 61
@W_HDW4100 = 103 'The starting address of the mapped value
@W_HDW4101 = 105
@W_HDW4102 = 106
@W_HDW4103 = 108
@W_HDW4104 = 28
SetKeyMap("@W_HDW3000","@W_HDW4100",5) ' Map the values of the HDW4000~HDW4004 addresses to the HDW3000~HDW3004 addresses.
Result
Map the value of the HDW4000~HDW4004 address (mapped to 103 105 106 108 28) to the value of the HDW3000~HDW3004 address (source key value 3 5 7 9 61)
Button 2 (key value 3) is mapped to the direction key (key value is 103), button 4 (key value 5) is mapped to the left arrow key (key value is 105), and so on. When using the keyboard, the function of input 2 could be performed on both the button 2 and the direction button.
SignedInt16
Function
val = SignedInt16(A1)
Description
Assign the value to {val} from address A1 which is signed integer.
Parameters
A1: contain signed integer as "@W_HDW000002"
Val: returned value
Example
Dim a as integer 'Integer variable a
a = SignedInt16("@W_HDW0") 'read signed integer from HDW0 addresses and assign the value to a
@W_HDW2=a 'assign the value a to HDW2
Input: @W_HDW0=-2:
Result: @W_HDW2=-2.
SignedInt32
Function
val = SignedInt32 (A1)
Description
Assign the value to {val} from address A1 which is signed even integer.
Parameters
A1: the address contains signed even integer
Val: Returned value
Example
Dim a as integer 'define {a} as a integer
a = SignedInt32("@W_HDW0") 'read signed even integer from HDW0, then assign this value to a.
@W_HDW2=a 'assign the value of a to HDW2
@W_HDW13=a>>16
Input: @W_HDW0=-2
Result: @W_HDW2=-2
@W_HDW13=-1
Sin
Function
val = Sin(A1)
Description
Get the sine value of A1, and copy result to val.
Parameters
A1: A1 needs to be an angle.
Val: Returned value.
Example
Dim a as floating 'floating variable a,b
a=sin(pi/6) 'return sinb to a
Float2D("@W_HDW13",a) 'assign the value of the floating variable a to address HDW13.
Result: @W_HDW13=0.5
SleepA
Function
SleepA(T)
Description
Wait time T(ms).
Parameters
T: wait time, the unit is [ms]
Returned value: none.
Example
SleepA(10) 'wait 10ms
Result: When the script runs to SleepA(10), it means the scripts would go running after waiting 10ms
Sqr
Function
val = Sqr(A1)
Description
Assign a square root value of A1 to val.
Parameters
A1: the data need to be operated
Val: Returned value
Example
@W_HDW0 = Sqr(4) 'calculate the square root of HDW0
Result: @W_HDW0=2
StAndFtChange
Function
StAndFtChange(A1,A2,A3)
Description
Calculate the number of seconds from January 1, 1970 to the current time, and also be invertible.
Parameters
A1: The start address of curren t time (Enter or output year, month, day, minute, and second); It needs to begin with address"@", and occupies 6 addresses;
A2: The number of seconds; It needs to begin with address “@", data format 32-bit unsigned.
A3: conversion method;
A3=0, convert time to seconds;
A3=1, convert seconds to time;
Returned value: none;
Example
Script 1
StAndFtChange("@W_HDW10","@W_HDW20",0) ‘use HDW10 as start address, and enter year, month, day, hour, minute, second. The script calculates the number of seconds from January 1, 1970 to the time of the entry, and stores the result in HDW20
Input: HDW10 = 2017,HDW11 = 12, HDW12 = 9 , HDW13 = 15, HDW14 = 15, HDW15 = 0
Output: 1512832500
Script 2
StAndFtChange("@W_HDW30","@W_HDW20",1) ‘read number of seconds from HDW20, and the script calculates the date time, and stores the result start from HDW30
Input: 1512833760
Output: HDW30 = 2017, HDW31 = 12, HDW32 = 9, HDW33 = 15, HDW34 = 36, HDW35 = 0
Sub
Function
Sub name (arglist)
statements
End Sub
Description
Declare the name, parameters and codes of the Sub (sub function)
Parameters
Name: naming rules refer to variable.
Arglist: variable list.
Statements: the code set of the sub function.
Example
sub samesub(a,b as integer) ' samesub and integer variable a,b
c=a+b
@W_HDW0=c
endsub
samesub(1,12) 'call function samesub
Result: @W_HDW0=13
SWAP
Function
SWAP(A1,length)
Description
Swap the big-endian with the little-endian from address A1, swap length is adjustable.
Parameters
A1: the swapped high endian, need to be an address as HDW_000002.
Length: swap length.
Returned value: None.
Example
@W_HDW103=0x1234 'assign value to HDW103
@W_HDW104=0x2345 'assign value to HDW104
@W_HDW105=0x2565 'assign value to HDW105
@W_HDW106=0x2675 'assign value to HDW106
SWAP(@W_HDW103,4) 'swap the high and low endian for the 4 adjacent addresses start with HDW103.
Result:
@W_HDW103=0x3412
@W_HDW104=0x4523
@W_HDW105=0x6525
@W_HDW106=0x7526
Tan
Function
val = Tan(A1)
Description
Get the returned tagent value of A1, and then assign to val.
Parameters
A1: A1 needs to be an angle.
Val: Returned value.
Example
Dim a as floating 'define a floating variable a
a=TAN(pi/3) 'calculate the tangent value of pi/3 and assign to a
Float2D("@W_HDW16",a) 'assign the value of a to HDW16
Result: @W_HDW13=1.732
Trim
Function
val = Trim(A1)
Description
Return A string in A1 without empty string next to it.
Parameters
A1: The operated string
val: Returned value
Example
@W_HDW1=Trim(" ab ")
Result: @W_HDW1="ab"
UCase
Function
val = UCase(A1)
Description
Capitalize the string data, and then assign the value to val.
Parameters
A1: Operated string, address or variable.
Val: Returned value
Example
@W_HDW1=ucase("abcd") 'Capitalize abcd then assign the value to HDW1
Result: @W_HDW1="ABCD"
Variable
Description
A variable is any factor, trait, or condition that could exist in differing amounts or types.
Define variable
Use Dim to define variable in script. The variable could be string, floating, integer.
Example:
Dim a as floating ‘define variable {a} as a floating.
Dim b,c,d as integer ‘define variable {b,c,d} as integer
Naming rules
The first letter needs to be English letter.
No symbols.
Maximum character length 15 allowed.
W2B
Function
W2B(A1, A2, A3)
Description
Replace the high endian of [A2]+1 with the high endian of A2.
Parameters
A1: operated address.
A2: source address.
A3: the conversion length.
Returned value: none.
Example
@W_HDW0 = 4660 'assign 16bit value 1234 to HDW0.
@W_HDW1=0x5678 'assign 16bit value 5678 to HDW1.
@W_HDW2 = 0x2425 'assign 16bit value 2425 to HDW1.
@W_HDW3 = 0x3536 'assign 16bit value 3536 to HDW0.
@W_HDW4 = 0x1415 'assign 16bit value 1415 to HDW0.
W2B(@W_HDW20,@W_HDW0, @W_HDW10)
@W_HDW10=1 ‘save the high endian {34} of HDW0 to HDW20.
Result: @W_HDW20=0x34, @W_HDW21=0, @W_HDW22=0
W2D
Function
W2D(A1, A2)
Description
Convert the unsigned Word to unsigned Dword and save the result in A1.
Parameters
A1: operated address .
A2: source address.
Returned value.
Example
Unsigned decimal word
@W_HDW0 = 1234 'assign 1234 to HDW0.
W2D(@W_HDW2, @W_HDW0) 'convert unsigned word {1234} from HDW0 to Dword and save in HDW2
Result: @W_HDW0=12345, @W_HDW2=12345, @W_HDW3=0
Signed decimal word
@W_HDW0 = -12345 'assign value to HDW0: convert {-12344} to unsigned decimal word is {53191}.
W2D(@W_HDW2, @W_HDW0) 'save unsigned Dword to HDW0
Result: @W_HDW0=-12345,@W_HDW2=53191,@W_HDW3=0
W2F
Function
A1 = W2F (A2)
Description
Convert a 16bit integer to a 32bit floating, and then save to the next word of A1.
Parameters
A1: operated address.
A2: source address.
Returned value: none.
Example
A1, A2 are addresses
@W_HDW0 = 1234 ' assign unsigned word {1234} HDW0 @W_HDW1=W 2F(@W_HDW0) ‘ Convert {1234} to a 32bit floating and then save to HDW1, HDW2.
Result: @W_HDW1=1234'32bit floating
A1 is an address,A2 is variable
dim a as integer
a=134 'define a integer 134 to a,
@W_HDW2=W2F (a) 'convert to 32bit floating save to HDW1, HDW2.
Result: @W_HDW1=134' 32bit floating
W2S
Function
W2S(A1,A2,S1)
Description
Convert integer word in address A1 text as S1 format, and then save to A2.
Parameters
A1: operated address.
A2: source address.
S1: saving format.
1) d format: Decimal format. d: Real data length. Md: Designated data length. 0md: Designated data length if the length is shorter than m adds 0 at the left.
2) format: Unsigned octal format. Mo and 0mo is also applied.
3) x format: unsigned Hex integer format ?Mx and 0mx is also applied.
4) c format: ASCII format.
Example
Decimal format
@W_HDW1=1456 'assign value {1456} to HDW1.
W2S("@W_HDW1", "@W_HDW10", "6d") ' convert{1456} to decimal text and save to HDW10.
Result: @W_HDW10 shown "1456"
0md
@W_HDW1=1456 ' assign value {1456} to HDW1
W2S("@W_HDW1", "@W_HDW10", "06d") ' convert{1456} to integer decimal text and add 2 {0} on the left of the data then save to HDW10.
Result: @W_HDW10 show text "001456"
WaitEthernetStart
Function
WaitEthernetStart (A1)
Description
Waiting for Ethernet to start, it will extend the HMI start up time (only added in PI i series, Ethernet start up is earlier than HMI in other PI series)
Parameters
A1: Waiting timeout (1~20s)
If A1=0, the wait timeout is 10s;
If A1>20, the wait timeout is 20s;
Returned value: None
Example
WaitEthernetStart (15)
‘The maximum waiting time is 15 seconds. If Ethernet is not started within 15 seconds, HMI will start the system and no longer wait for ethernet.
WHILE ... WEND
Function
While condition
[statements]
Wend
Description
If the condition is true, then all the commands before Wend in the statement will be executed then recheck the condition, if the condition is false, the command after Wend will be executed.
Parameters
Condition: Number or string, the result represents as True or False.
Returned value: None.
Example
while @W_HDW1>50 'the condition is the value of HDW1 bigger than 50.
@W_HDW1=@W_HDW1-1 'when the condition is true, execute subtract 1 from 1HDW.
wend
@W_HDW2=@W_HDW2+1 ' when the condition is false, execute add 1 from 1HDW.
Result: If HDW1=60, after executed; HDW1=50, if the condition is true.
WriteAddr
Function
WriteAddr(A1,A2)
Description
Assign the value from A2 to address A1.
Parameters
A1: operated address
A2: source address
Returned value: None.
Example
dim f as integer ' integer f
f=13 ' assign the value 13 to f
WriteAddr("@W_HDW1",f) ' write the value to HDW1.
WriteAddr("@W_HDW10",@W_HDW2) ' write the value from HDW2 to HDW10.
Result:
HDW1=13
HDW10= HDW2'IF HDW2=1456,Then HDW10=1456;IF HDW2=-123,Then HDW10=-123
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