Post by jzhvymetal77 on IecVarAccessLibrary.IBaseTreeNode methon ^{CODESYS Forge talk (Post)}
I had this code working in a previous version of CoDeSys to read variables from a GVL that were added to the Symbol configuration. The problem now is that when I get the _IBaseTreeNode_Parent, it returns a valid interface, but none of the methods or properties work. If you monitor the _IBaseTreeNode in the watch window, it does show the correct child count. However, it fails at step 30, where the child count incorrectly returns zero. In the image, you can see that the watch window displays the correct value that the property should return. Attached is the full project code. FUNCTION_BLOCK Symbols_TO_STR VAR_INPUT i_sPath : STRING(255); i_diIndexChild : DINT; i_diIndexComponent : DINT; END_VAR VAR_OUTPUT q_diChildCount : DINT; q_diComponentCount : DINT; q_sName : STRING(255); q_sValue : STRING(255); q_sType : STRING(80); q_sErrorResult : STRING(80); END_VAR VAR uiStepCopy : UINT; uiStep : UINT; uiStepProcessCopy : UINT; uiStepProcess : UINT; _IBase : IecVarAccessLibrary.IBase; _pIIecVarAccess5 : POINTER TO IecVarAccessLibrary.IIecVarAccess5; _IIecVarAccess5 : IecVarAccessLibrary.IIecVarAccess5; _RTS_IEC_RESULT : IecVarAccessLibrary.RTS_IEC_RESULT; _udiResult : UDINT; _VariableInformationStruct : IecVarAccessLibrary.VariableInformationStruct; _IBaseTreeNode_Parent : IecVarAccessLibrary.IBaseTreeNode; _IBaseTreeNode_Child : IecVarAccessLibrary.IBaseTreeNode; _ITypeDesc_Child : IecVarAccessLibrary.ITypeDesc; _TypeDescAsUnion_Child : IecVarAccessLibrary.TypeDescAsUnion; _arIBaseTreeNode_Child : ARRAY[0..20] OF IecVarAccessLibrary.IBaseTreeNode; _TypeClass_Child : IecVarAccessLibrary.IBaseLibrary.TypeClass; _psSymbolName_Child : POINTER TO STRING; _sSymbolName_Child : STRING(255); _IBaseTreeNode_Component : REFERENCE TO IecVarAccessLibrary.IBaseTreeNode; _TypeClass_Component : IecVarAccessLibrary.IBaseLibrary.TypeClass; _ByteAddress_Component : __XWORD; _ByteOffset_Component : __XWORD; _sArrayIndexName_Component : STRING(20); _diArrayIndexCalc_Component : DINT; _diArrayIndexValue_Component: DINT; _psSymbolName_Component : POINTER TO STRING; _sSymbolName_Component : STRING(255); END_VAR uiStepCopy:=uiStep; uiStepProcessCopy:=uiStepProcess; CASE uiStep OF 10: // GET IBASE FROM CURRENT APP _IBase:= IecVarAccessLibrary.IecVarAccGetFirstInterface2(0); IF _IBase<>0 THEN uiStep:=20; ELSE q_sErrorResult:=CONCAT(UINT_TO_STRING(uiStep), ': IecVarAccGetFirstInterface2'); uiStep:=9000; END_IF 20: //QueryInterface IIecVarAccess5 from IBASE _pIIecVarAccess5 := _IBase.QueryInterface(IecVarAccessLibrary.ITFID_IIecVarAccess5, ADR(_RTS_IEC_RESULT)); IF _pIIecVarAccess5<>0 AND _RTS_IEC_RESULT=0 THEN _IIecVarAccess5 := _pIIecVarAccess5^; uiStep:=30; ELSE q_sErrorResult:=CONCAT(UINT_TO_STRING(uiStep), ': QueryInterface_IIecVarAccess5'); uiStep:=9000; END_IF 30: // Get IBaseTreeNode_Parent _IBaseTreeNode_Parent := _IIecVarAccess5.VarAccGetNode3(ADR(i_sPath), ADR(_VariableInformationStruct), ADR(_RTS_IEC_RESULT)); IF _IBaseTreeNode_Parent<>0 AND _RTS_IEC_RESULT=0 THEN q_diChildCount:=_IBaseTreeNode_Parent.ChildCount; uiStep:=40; ELSE q_sErrorResult:=CONCAT(UINT_TO_STRING(uiStep), ': IBaseTreeNode_Parent'); uiStep:=9000; END_IF 40: // Get IBaseTreeNod_Child IF(q_diChildCount-1>=i_diIndexChild AND i_diIndexChild >=0) THEN _IBaseTreeNode_Child := _IBaseTreeNode_Parent.GetChild(i_diIndexChild); IF _IBaseTreeNode_Child<>0 THEN uiStep:=50; ELSE q_sErrorResult:=CONCAT(UINT_TO_STRING(uiStep), ': IBaseTreeNode_Parent'); uiStep:=9000; END_IF ELSE q_sErrorResult:=CONCAT(UINT_TO_STRING(uiStep), ': i_diIndexChild OutBounds'); uiStep:=9000; END_IF
Last updated: 2025-08-20

Post by critcho on WebVisu Numpad dialog - Dialogtitle not accepting string variable ^{CODESYS Forge talk (Post)}
I have a WebVisu page which is re-used for multiple types of gas; it displays the alarm thresholds etc. for one gas at a time. I have an array of structures holding the set-points for each of the gasses. I'm trying to change the dialog title for the value input pop-up (VisuDialogs.Numpad). The Dialogtitle is set to Gas_Alarms.HighAlarmActivationLevelDialog, which is a string(50): When the gas type is changed (page first loaded, or prev/next buttons), METHOD Gas_Alarms.Update_Display_Variables is called, to update the strings used for the dialog titles so it shows GasName High Alarm Activation Level (EngineeringUnits), e.g. CO2 High Alarm Activation Level (PPM): HighAlarmActivationLevelDialog := Insert(' High Alarm Activation Level ()', EngineeringUnits, 30); HighAlarmActivationLevelDialog := Insert(HighAlarmActivationLevelDialog, GasName, 0); (That's not where the problem is, I'm just explaining why I'm using a variable dialogue title.) The variables used are definitely strings, but i'm always getting the error: "The type of the dialog title must be either STRING or WSTRING". I've tried moving HighAlarmActivationLevelDialog etc. to the GVL and also changing them to WSTRING, I even tried adding them to the structure array, but I always get the same error. Clearing the dialog title for that element removes the error - so I'm confident it's not a phantom error caused by something else. But I should be able to add these titles, can't just nuke them all to make it work. The MinVal and MaxVal for the Numpad are called from the array, e.g. GVL.Gas_Alarm_Configs[0].ScaledValueMIN, they are not getting an error. I am using array indexes 1 - 5 for the gasses, when I load the form or change gas, I copy the selected index to index 0 of the array, and values from Gas_Alarm_Configs[0].[ALL] are displayed on the page. When they hit save, I copy Gas_Alarm_Configs[0].[ALL] to Gas_Alarm_Configs[CurrentGasIndex].[ALL]. (ALL just means every element, I can't figure out how to display an asterix in this question... :) ) I've searched online for variable title dialog, but not found anything to help. Thanks for your help!
Last updated: 2025-05-29

Post by timo on String nach erlaubten/unerlaubten Zeichen durchsuchen ^{CODESYS Forge talk (Post)}
Hallo, Ich bastele gerade an einer möglichst einfachen Möglichkeit mit der ich prüfen kann ob ein String Sonderzeichen enthält. Mein Ansatz ist ein ST FB mit einer Case Schrittkette. Ich vergleiche jedes Zeichen des Strings mit allen Zeichen eines vorher definierten Strings erlaubter Zeichen, der A-Z, a-z und 0-9 enthält und ggf angepasst werden kann, wenn ich weitere Zeichen erlaube. Leider wird meine j Zählervariable nicht richtig ausgeführt. Hat da jemand eine Idee? Oder gibt es eine einfachere Lösung/einen fertigen FB den ich mir anschauen kann? FUNCTION_BLOCK Sonderzeichen_Check VAR_INPUT inputString : STRING; // Zu prüfender String startCheck : BOOL; // Startsignal END_VAR VAR_OUTPUT ok : BOOL; // TRUE, wenn keine ungültigen Zeichen END_VAR VAR i : INT := 1; // Input-String Zähler j : INT := 1; // erlaubte Zeichen Zähler allowedChars: STRING := 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'; // Erlaubte Zeichen currentChar : STRING[1]; // Aktuelles Zeichen step : INT := 0; // Schritt END_VAR CASE step OF 0: // Warten auf Start IF startCheck THEN step := 10; END_IF 10: // Initialisierungen i := 1; j := 1; ok := TRUE; // Standard: ok step := 20; 20: // Durchgehen des Eingangs-Strings IF i <= LEN(inputString) THEN currentChar := MID(inputString, i, 1); // Aktuelles Zeichen step := 30; ELSE step := 70; // Alle Zeichen ok END_IF 30: // Durchgehen der erlaubten Zeichen IF j <= LEN(allowedChars) THEN step := 40; // Zu Schritt 40 ELSE step := 60; // Ungültiges Zeichen END_IF 40: // Vergleich IF currentChar = MID(allowedChars, j, 1) THEN i := i + 1; // Nächstes Zeichen im Input step := 20; ELSE j := j + 1; // Nächstes erlaubtes Zeichen step := 30; END_IF 60: // Ungültiges Zeichen ok := FALSE; // Setze auf FALSE step := 0; 70: // Alle Zeichen ok step := 0; END_CASE
Last updated: 2025-01-20

Post by captaincookie on increase default string length in queue ^{CODESYS Forge talk (Post)}
Hello, I'm using Codesys V3.5 SP18 Patch 4. In the ElementCollectionExample Project from Codesys, I test the SimpleQueueExample in a Control Win V3 x64 environment. I try to add a string of 95 characters length to a queue. The default length of strings is defined as 80 characters. In the initialization of a string variable, it is possible to increase the length by the definition of e.g. STRING(1000). But when I write the string defined like this to the queue, only 80 characters are written to it and the rest is missing. I think the default length is still set in the queue definition, so it is necessary to change this, isn't it? Is there any option to increase the default length of strings in the queue? Attached you can find the used project. Thanks in advance. If any information are missing or my description unclear please let me know.
Last updated: 2023-10-05

Post by andrebrandt on FB string and naming ^{CODESYS Forge talk (Post)}
Hi Tim. Not quite correct. What i'd like, is when you place the FB in prog, i choose a block NTC10k, and name this RT401. What i'm trying to do, is to get the name RT401 automaticly into the FB, so i can put this into the string i pass in a struct. So in var in POU, i saw this a place i could do this, RT401: NTC10k(Tag:='RT401'), but i can't get this to work. I shurly must have had something like this in FB: FUNCTION_BLOCK NTC10k String TAG But it's here where I'm stuck...
Last updated: 2024-09-30

Post by struccc on HTML5 Controls - string(>80) values ^{CODESYS Forge talk (Post)}
Dear all, does anyone have experience with HTML5 controls recently? CODESYS 3.5.20.30 / Visualization 4.6.0.0 I'd like to create a simple lightweight text editor, with proper multiline handling, cut & paste, scrolling, etc. And it seems to work fine, just have problems with strings longer than 80 bytes.... Declaring a variable sText1 : STRING(8000) and referencing it in the HTML5 Controls corresponding value property works perfectly one way: the code receive the data as a string (See log1)... (Note TypeID 1000...) Also sending back the data (seems to work (See log2) except it doesn't change the value of the bound variable. Probably the issue is with using SendSimpleValue method... Naturally, I could do a workaround, but maybe there is a more standard way to implement this... Please let me know if you have any suggestions.
Last updated: 2024-10-23

Post by manuknecht on Using SMC_MOVTYP.INITPOS without specifying the start position ^{CODESYS Forge talk (Post)}
I am using the object SMC_GEOINFO to generate a trajectory and move a system accordingly using the SMC_INTERPOLATOR function block similar to the sample project CNC10_DynamicPath.project. According to the documentation, the movement type INITPOS does not require a start position in the SMC_GEOINFO object, which is confirmed in the documentation of the SMC_GEOINFO object. When using the movement type INITPOS however, the motion will still start from the starting point defined in the SMC_GEOINFO object (0,0,0 if not specified otherwise). Does someone know how to resolve this or is there an example project that makes use of the INITPOS movement type without specifying the starting point? Thanks in advance!
Last updated: 2023-12-15

Post by shawn-plc on Return value from a tag given a string literal ^{CODESYS Forge talk (Post)}
Good afternoon everyone, I am looking for a way to return a value given a string tag path. I put together a pseudo-example to illustrate my use-case and was wondering if anyone in this forum can help. The function fnValueFromTagPath is the function I am looking to either create or use from existing library. I would greatly appreciate it. Please see the attachment for additional detail. -Shawn
Last updated: 2024-08-13

Post by andrebrandt on FB string and naming ^{CODESYS Forge talk (Post)}
Hi all. I have a FB written in ST. FUNCTION_BLOCK NTC10k VAR_INPUT Syst:STRING; In:REAL; END_VAR VAR_OUTPUT Out:REAL; OTag:STRING; Out_St:Struct_NTC10K; END_VAR VAR Tag:STRING; InstanceName: STRING; Structure:Struct_NTC10K; END_VAR What i'm trying to do, is to pass data to structure. In structure i want to add a tag with systemnumber and sensorname. '320.001-RT401' In pou i use this RT401: NTC10k;, and tried this RT401: NTC10k(Tag:='RT401'); Anyone done this?
Last updated: 2024-09-26

Post by vstrom on Recipe definition, how to have the Name string in current language? ^{CODESYS Forge talk (Post)}
I'd like to know if it is possible to have the "Name" field, in the recipe definition, language dependent. Something like to have the possibility to put there a string ID that will be add to the GlobalTextList. In this way it can be translated and when showed in a Visualization screen its value depend on the current language. Thanks.
Last updated: 2024-10-04

Post by andrebrandt on BACnet dynamic create bacnet object ^{CODESYS Forge talk (Post)}
Hi. I want to create a FB with bacnet objects. FUNCTION_BLOCK PT1000 VAR_INPUT System: STRING; In: REAL; Name:STRING; END_VAR VAR_OUTPUT Out: REAL; Out_St: Struct_PT1000; END_VAR VAR {attribute 'instance-path'} {attribute 'noinit'} Tag: STRING; Instance:DINT; //AnalogInn : WagoSysBACnet.FbAnalogInput_large(1); This works. Objectname is AnalogInn. identifier is 1 END_VAR I want to name object based on FB PT1000. In FB P1000, I want to write eUnits, Name and so on. How can i do this???
Last updated: 2025-01-15

Post by timvh on I want to show the current recipe name in the visualization screen ^{CODESYS Forge talk (Post)}
Maybe the easiest solution for you is to add one STRING variable to your recipe and enter the name of the recipe in variable value. This is little bit double the work (naming the recipe and entering the value of the STRING variable), but in that case you always have the current value of the variable which you can read from the application and show in the visualization.
Last updated: 2025-09-04

Post by jzhvymetal77 on Special Chars in Visualizationfor QR code string ^{CODESYS Forge talk (Post)}
In Visualization, is there any way to make special characters in a string display properly in a Text object? I wrote a function block to create QR codes at runtime. My code uses “$DB,” which in ASCII should render as a solid block. The code works, but to display it in Visualization I had to create multiple rectangles with visibility bound to a BOOL array. That works, but since each BOOL must be exposed as a separate variable, it consumes most of the available monitoring resources. See Attached image.
Last updated: 2025-09-29

Post by jzhvymetal77 on Special Chars in Visualizationfor QR code string ^{CODESYS Forge talk (Post)}
In Visualization, is there any way to make special characters in a string display properly in a Text object? I wrote a function block to create QR codes at runtime. My code uses “$DB,” which in ASCII should render as a solid block. The code works, but to display it in Visualization I had to create multiple rectangles with visibility bound to a BOOL array. That works, but since each BOOL must be exposed as a separate variable, it consumes most of the available monitoring resources. See Attached image.
Last updated: 2025-09-29

Post by fefefede on Get the numer of day ^{CODESYS Forge talk (Post)}
Hello i tro to create a program to turn on or off the air condition in relationship temperature and numer of day. I can't get the number of day. I try this after installing SysTime library but this not work and have this error on debug ------ Build started: Application: Device.Sim.Device.Application ------- Typify code... Generate code... [ERROR] giorno_accensione_aria: PLC_PRG Device: PLC Logic: Application: C0032: Cannot convert type 'Unknown type: 'SysTimeCore(TRUE)'' to type 'TIME' [ERROR] giorno_accensione_aria: PLC_PRG Device: PLC Logic: Application: C0035: Program name, function or function block instance expected instead of 'SysTimeCore' [ERROR] giorno_accensione_aria: PLC_PRG Device: PLC Logic: Application: C0032: Cannot convert type 'Unknown type: 'DayOfWeek(CurrentTime)'' to type 'INT' [ERROR] giorno_accensione_aria: PLC_PRG Device: PLC Logic: Application: C0035: Program name, function or function block instance expected instead of 'DayOfWeek' [INFORMATION] giorno_accensione_aria: PLC_PRG Device: PLC Logic: Application: C0181: Related position Build complete -- 4 errors, 0 warnings : No download possible PROGRAM PLC_PRG VAR Temperatura: UDINT; AriaCondizionata: BOOL := FALSE; CurrentDayOfWeek: INT; //Variabile Giorno CurrentTime: TIME; GiornoDellaSettimana: INT; DayOfWeek: INT; END_VAR CurrentTime := SysTimeCore(TRUE); // Ottieni l'ora corrente CurrentDayOfWeek := DayOfWeek(CurrentTime); CASE GiornoDellaSettimana OF 1: // Azioni per Lunedì 2: // Martedì se più 10° accend altrimenti spegni IF Temperatura >= 10 THEN AriaCondizionata := TRUE; ELSE AriaCondizionata := FALSE; END_IF 3: // Mercoledì se più di 50° accendi altrimenti spegni IF Temperatura >=50 THEN AriaCondizionata := TRUE; ELSE AriaCondizionata := FALSE; END_IF 4: // Giovedì se più di 40° accendi altrimenti spegni IF Temperatura >=40 THEN AriaCondizionata := TRUE; ELSE AriaCondizionata := FALSE; END_IF 5: // Venerdì se più di 50° accendi altrimenti spegni IF Temperatura >=50 THEN AriaCondizionata := TRUE; ELSE AriaCondizionata := FALSE; END_IF 6: // Sabato se più di 25° accendi altrimenti spegni IF Temperatura >=25 THEN AriaCondizionata := TRUE; ELSE AriaCondizionata := FALSE; END_IF 7: // Domenica sempre spenta AriaCondizionata := FALSE; END_CASE
Last updated: 2023-09-14

Post by otbeka on CAA File Handling: "Read only" error ^{CODESYS Forge talk (Post)}
Hi, On CODESYS V3.5.19.50 I am using the latest 3S File Access library (CAA File & CAA Types) to save and retrieve configuration data from the User Data section of an SD card, via file called config.txt. The application reads the file to memory once upon initialisation, and then the only other operation is overwriting the file with the updated configuration whenever the user changes the settings. An issue is ocurring, seemingly randomly, where the config.txt file, and all surrounding directories, cannot be written to by the unit, returning a READ_ONLY_CAA error upon file open. This sometimes does not clear even after power-cycling the PLC several times, yet checking the file permissions with ls -l shows normal read, write, and execute access. I am wondering if this is caused by the PLC itself or by an issue in my application. I have included my CAA File handler function block (SD_Card_Bin(FB).txt) and any associated types/calls below: TYPE ConfigData : STRUCT Config : ARRAY[0..256] OF STRING(64); NumberOfStrings : UDINT; END_STRUCT END_TYPE TYPE Buffer : STRUCT Data : ARRAY[0..SIZEOF(ConfigData)] OF BYTE; DataLength : UDINT; END_STRUCT END_TYPE A case within my MAIN PRG: mode.WriteConfigDataToFile: VisuElems.CURRENTVISU := 'Screen_Write'; IF xModeHasChanged THEN iErrorCount := 0; iRoute := 0; END_IF CASE iRoute OF 0: inBuffer := ConfigData_To_Buffer(GVL.UnitData); xConfigError := FALSE; xDataConfigured := FALSE; iRoute := 1; 1 : //Read Data from Card SD_Card_Bin.strFileName :=FileName; SD_Card_Bin.iFileOperation := 2; SD_Card_Bin(xExecute :=TRUE, WriteBuffer := inBuffer, xDone =>xDataConfigured, xError=>xConfigError, strErrorCodes=>strError); IF xDataConfigured THEN SD_Card_Bin(xExecute :=FALSE); IF xConfigError THEN iRoute := 32767; ELSE iRoute :=100; END_IF END_IF 100: // The end bCurMode := mode.DisplayProcessVariables; 32767: // Config error iErrorCount := iErrorCount + 1; IF iErrorCount > 2 THEN // Repeats 3 times, if no progress abandons and returns error bCurMode := mode.WriteError; ELSE iRoute := 0; // Try again END_IF END_CASE I'd like to rule out my application as the cause of this bug - help via comments or criticism would be greatly appreciated.
Last updated: 2025-03-19

Post by athuum on Error 'Library not found' and 'Unkown type' ^{CODESYS Forge talk (Post)}
Hello, I am getting the following error and warning when trying to download a project into a PLC: - Library CmpTargetVisu has not been added to the Library manager, or no valid license could be found - Unkown type: 'CmpEventMgr.EventParam' As far as I can see, both are included, and licensed, in the library manager (see image). What could the problem be, and how would I resolve this?
Last updated: 2024-10-08

Post by apurv on Cannot pass array of constant size to a function as a reference ^{CODESYS Forge talk (Post)}
I have a Array of constant size defined like this Var Constant MAX_SIZE :UINT := 10; End_var VAR array : ARRAY[0..MAX_SIZE] OF INT; END_VAR Now I want to pass this array to a function by reference, Function fun : INT VAR_IN_OUT CONSTANT MAX_SIZE : UINT; END_VAR VAR_INPUT array : REFERENCE TO ARRAY[0..MAX_SIZE] OF INT; END_VAR but when I run this it gives strange Errors Error : Cannot Convert type 'ARRAY [0..MAX_SIZE] OF INT' to type 'ARRAY[0..MAX_SIZE] OF INT'
Last updated: 2024-01-07

Post by marlutec on [ERROR] The PLCopenXML import is not possible because Device not found. Type: 89, Id: 0000 0005, Version: 3.5.10.0 ^{CODESYS Forge talk (Post)}
Hello every one. Now i'm instaling a Weintek cMT2108x2(v2) with IR-ETN40R. When I start to import the archive content the code of I/O remote IR-ETN40R, ocurred this error. [ERROR] The PLCopenXML import is not possible because Device not found. Type: 89, Id: 0000 0005, Version: 3.5.10.0 Can someone help me? Marcos Gentil, from Brazil.
Last updated: 2024-02-15

Post by adam on Get/Set I/O Address Mapping of DeviceObjects in python Script ^{CODESYS Forge talk (Post)}
I want to cancel the automatic address allocation for all IO mappings. If I directly set the automatic_iec_address in class ScriptIoMapping to False, the address becomes None. So I reset manual_iec_address with itselfs value. It only work with the Input IOMapping . For output, it reports an error: "Invalid address: The channel type 'Output' requires address type '%Q'." I checked the description file ,both accessRight are total same. Does anyone know what causes this?
Last updated: 2025-11-14

Post by sedoerr on Check For Open Dialogs On Client ^{CODESYS Forge talk (Post)}
FUNCTION CheckDialogOpen : BOOL VAR_INPUT sDialogName : STRING; END_VAR VAR pstClientData : POINTER TO VisuElems.VisuStructClientData; itfDialogManager : VisuElems.IDialogManager; itfMyDialog : VisuElems.IVisualisationDialog; END_VAR VisuElems.g_ClientManager.BeginIteration(); WHILE (pstClientData := VisuElems.VisuElemBase.g_ClientManager.GetNextClient()) <> 0 DO itfDialogManager := VisuElems.g_VisuManager.GetDialogManager(); itfMyDialog := itfDialogManager.GetDialog(sDialogName); CheckDialogOpen := VisuDialogs.VisuDlgUtil_IsDialogOpen(itfMyDialog,pstClientData,itfDialogManager); IF CheckDialogOpen THEN EXIT; END_IF END_WHILE
Last updated: 2023-09-26

Post by captaincookie on increase default string length in queue ^{CODESYS Forge talk (Post)}
I solved it by creating a new element of IElement according to the ElementExample (MyElement) in the ElementCollectionsExamples project. The variables in this element can then be defined in any properties as needed.
Last updated: 2023-10-11

Post by timvh on Help with DynamicTextGetTextW ^{CODESYS Forge talk (Post)}
First of all you need to enable "Use unicodestrings" in the Visualization Manager. This function returns a pointer to a WSTRING (not STRING). To get this wstring value, do something like this: VAR myWstringVariable : WSTRING(255); END_VAR myWstringVariable := myResult^; // this is dereferencing the pointer to the WSTRING.
Last updated: 2024-09-03

Post by rmaas on CSV file and string manipulation. ^{CODESYS Forge talk (Post)}
the $N stands for newline and $R stands for line break. maybe these combinations are considered as 1 character/position? Not sure, just a thought... see also: https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_operands_constant_string.html#:~:text=A%20string%20constant%20is%20a,belong%20to%20this%20character%20set.
Last updated: 2024-09-27

Post by nano on FB string and naming ^{CODESYS Forge talk (Post)}
inside the fb, use the reflection-attribute and get the instancename includibg whole path.when im right, the applicationname will also reflected, if yes. you have to trim it. https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_pragma_attribute_instance_path.html
Last updated: 2024-10-02

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