Split int to int array? ^{CODESYS Forge talk (Thread)}
Split int to int array?
Last updated: 2016-06-22

Convert string to byte array. ^{CODESYS Forge talk (Thread)}
Convert string to byte array.
Last updated: 2021-12-29

Integer type to byte array ^{CODESYS Forge talk (Thread)}
Integer type to byte array
Last updated: 2015-11-25

writing to array in program ^{CODESYS Forge talk (Thread)}
writing to array in program
Last updated: 2022-02-03

give a Name to array cell ^{CODESYS Forge talk (Thread)}
give a Name to array cell
Last updated: 2017-06-03

Exporting Array to CSV in CODESYS ^{CODESYS Forge talk (Thread)}
Exporting Array to CSV in CODESYS
Last updated: 2020-06-10

Unpacking an array to MODBUS addresses ^{CODESYS Forge talk (Thread)}
Unpacking an array to MODBUS addresses
Last updated: 2018-06-19

Array of pointers to output ^{CODESYS Forge talk (Thread)}
Array of pointers to output
Last updated: 2013-05-13

2 byte array convert to uint ^{CODESYS Forge talk (Thread)}
2 byte array convert to uint
Last updated: 2019-04-30

Pointer to Array in Funktionsbaustein verwenden ^{CODESYS Forge talk (Thread)}
Pointer to Array in Funktionsbaustein verwenden
Last updated: 2009-11-12

Word to array of byte ^{CODESYS Forge talk (Thread)}
Word to array of byte
Last updated: 2022-09-22

REFERENCE TO in an array ^{CODESYS Forge talk (Thread)}
REFERENCE TO in an array
Last updated: 2024-10-14

Grosses Array in kleines Array schreiben ^{CODESYS Forge talk (Thread)}
Grosses Array in kleines Array schreiben
Last updated: 2009-06-15

Zugriff bei Deklaration ARRAY OF ARRAY ^{CODESYS Forge talk (Thread)}
Zugriff bei Deklaration ARRAY OF ARRAY
Last updated: 2011-11-03

How to convert UDINT to array of bytes ? ^{CODESYS Forge talk (Thread)}
How to convert UDINT to array of bytes ?
Last updated: 2023-03-10

Post by rickj on Defining local variables that can be independent with several users. ^{CODESYS Forge talk (Post)}
You need to create an array with one element for each possible user. I usually define these arrays in the root screen. FrameIndex : Array [0..MaxUsers] OF INT; Then use the global CurrentClientId (defined by one of the VISU libraries) to index the array element used to select the frame. FrameIndex[CurrentClientId]
Last updated: 2023-10-21

Post by ihatemaryfisher on Sorting array of any-sized structure ^{CODESYS Forge talk (Post)}
In my machine's operation, I need to display multiples tables containing arrays of structured variables. The arrays change during operation, and my supervisor has advised me to write a new bubble-sort for each array. I think I can make a function to sort an array of any data type. This was my own project, and I'm a relatively new coder. I want to know the weaknesses in my approach, and a better method, if one exists. As far as I can test, the function accepts an array of a structured variable of any size, and sort it by any VAR in that structure. But it relies heavily on pointers, which I've heard are bad practice? Function call: // SORT BY BYTE-SIZED VAR IF xDoIt[6] THEN FUNBubbleSortSansBuffer( IN_pbySourcePointer := ADR(astArray[1]), // address of first byte in first element of array IN_pbyComparePointer:= ADR(astArray[1].byCompByte), // points to first byte of the comparing variable (variable you sort by) IN_uiStructureSize := SIZEOF(TYPE_STRUCTURE), // size, in bytes, of the structured variable IN_uiCompareSize := SIZEOF(astArray[1].byCompByte), // size, in bytes, of the comparing variable (variable you sort by) diArrayElements := UPPER_BOUND(astArray,1), // number of elements in array IN_xSmallToLarge := xSortOrder // whether to sort by small2large or large2small ); END_IF Function: FUNCTION FUNBubbleSortSansBuffer : BOOL VAR_INPUT IN_pbySourcePointer : POINTER TO BYTE; // points to beginning of array (first byte of first element) IN_pbyComparePointer: POINTER TO BYTE; // points to first byte of the comparing variable (variable you sort by) IN_uiStructureSize : UINT; // size, in bytes, of the structured variable IN_uiCompareSize : UINT; // size, in bytes, of the comparing variable (variable you sort by) diArrayElements : DINT; // number of elements in array IN_xSmallToLarge : BOOL; // whether to sort by small2large or large2small END_VAR VAR j : DINT; // repeat iteration over array until array ends i : DINT; // iterarte over array, swapping when necesary k : DINT; // iterator from 1 to size of structure (stepping 'through' a single element in array) dwSize : DWORD; // internal var for use in MEMUtils.MemCpy(<size>) // FOR SORTING BY BYTE VAR pbySourcePointer : POINTER TO BYTE; pbySourcePointer2 : POINTER TO BYTE; pbyComparePointer : POINTER TO BYTE; pbyComparePointer2 : POINTER TO BYTE; pbyPointerToBuffer : POINTER TO BYTE; // pointer to single byte buffer byBufferByte : BYTE; // single byte buffer END_VAR dwSize := UINT_TO_DWORD(IN_uiStructureSize); // get structure size (number of bytes) pbyPointerToBuffer := ADR(byBufferByte); // assign pointer to address of buffer byte (because MEMUtils.MemCpy requires a pointer input) CASE IN_uiCompareSize OF // depending on the size of the VAR to sort by (current functionality for BYTE and WORD/INT 1: // BYTE (8 BIT) FOR j := 1 TO diArrayElements DO // for number of elements in array FOR i := 1 TO (diArrayElements-1) DO // same thing, but row[i+1] row is included in swap logic pbySourcePointer := IN_pbySourcePointer + dwSize*(i-1); // point at #1 byte in array element[i] pbySourcePointer2 := pbySourcePointer + dwSize; // point at #1 byte in array element[i+1] // NOTE: because of memory locations, each array element is offset from one another by a number of bytes equal to the size of the structure // We can "walk" from array[i] to array[i+1] via steps equal to the size of the structure // e.g., ADR(array[i+1]) == ADR(array[i]) + SIZEOF([array datatype]) pbyComparePointer := IN_pbyComparePointer + dwSize*(i-1); // point to sorting variable in array element[i] pbyComparePointer2 := pbyComparePointer + dwSize; // point to sorting variable in array element[i+1] // using sort order (small -> large/large -> small) IF SEL(IN_xSmallToLarge, (pbyComparePointer2^ > pbyComparePointer^),(pbyComparePointer2^ < pbyComparePointer^)) THEN // This is where it gets tricky. We've identified pointers for the starting bytes of aArray[i] and aArray[i+1] // and we know the size of aArray[i]. We are going to swap individual bytes, one at a time, from aArray[i] and aArray[i+1] // this allows us to use only a single byte var as a buffer or temporary data storage // e.g., consider a structure consisting of a word, a byte, and a string. it is stored like this // |------WORD-------| |--BYTE-| |STRING------...| // astArray[1] == 1000 0100 0010 0001 1100 0011 1010 1010.... etc // astArray[2] == 0001 0010 0100 1000 0011 1100 0101 0101.... etc // performing a single swap (copy into a buffer, etc.) of the first byte of each array element creates this // astArray[1] == 0001 0100 0010 0001 1100 0011 1010 1010.... etc // astArray[2] == 1000 0010 0100 1000 0011 1100 0101 0101.... etc // incrementing the pointer adresses for the swap by 1 and swapping again swaps the next byte in each array element // astArray[1] == 0001 0010 0010 0001 1100 0011 1010 1010.... etc // astArray[2] == 1000 0100 0100 1000 0011 1100 0101 0101.... etc // continuing this from k to SIZEOF(TYPE_STRUCTURE) results in a toally swapped row FOR k := 1 TO IN_uiStructureSize DO // copy single byte[k] of array element 1 to buffer MEMUtils.MemCpy(pbyDest := (pbyPointerToBuffer), pbySrc := (pbySourcePointer+k-1), dwSize := 1); // copy single byte[k] of array element 2 to 1 MEMUtils.MemCpy(pbyDest := pbySourcePointer+k-1, pbySrc := (pbySourcePointer2+k-1), dwSize := 1); // copy buffer to byte[k] array element 2 MEMUtils.MemCpy(pbyDest := (pbySourcePointer2+k-1), pbySrc := pbyPointerToBuffer, dwSize := 1); END_FOR END_IF END_FOR END_FOR
Last updated: 2023-08-17

Post by installwhat on C0077 on one machine but not another ^{CODESYS Forge talk (Post)}
someone needs to add some js to stop repeated posts
Last updated: 2024-06-11

How to integrate CoDeSys into another system? ^{CODESYS Forge talk (Thread)}
How to integrate CoDeSys into another system?
Last updated: 2009-09-02

How to call another program from main ladder program? ^{CODESYS Forge talk (Thread)}
How to call another program from main ladder program?
Last updated: 2014-03-13

Can CoDeSys access to another OPC Server ^{CODESYS Forge talk (Thread)}
Can CoDeSys access to another OPC Server
Last updated: 2011-11-02

Sending UDP data to another device over Ethernet ^{CODESYS Forge talk (Thread)}
Sending UDP data to another device over Ethernet
Last updated: 2020-01-28

connect codesys to opc server on another pc ^{CODESYS Forge talk (Thread)}
connect codesys to opc server on another pc
Last updated: 2009-03-03

How to find/connect RTE at another computer? ^{CODESYS Forge talk (Thread)}
How to find/connect RTE at another computer?
Last updated: 2022-06-08

Referencing variable from a regular element to another ^{CODESYS Forge talk (Thread)}
Referencing variable from a regular element to another
Last updated: 2014-03-31

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