Post by ellcap on Did a library update and now can't open project ^{CODESYS Forge talk (Post)}
EDIT: Title was a mistake. Should say now I can't compile / download project. Codesys V3.5SP19 Patch 2. Updated the libraries/packages using the Codesys Installer. I'm hit with this error ------ Build started: Application: ------- Typify code... [ERROR] iecvaraccess, 4.4.0.0 (system): IecVarAccess: C0086: No definition found for interface 'IIecVarAccess17' [ERROR] iecvaraccess, 4.4.0.0 (system): IecVarAccess: C0077: Unknown type: 'IIecVarAccess17' [ERROR] iecvaraccess, 4.4.0.0 (system): Initialize [IecVarAccess]: C0032: Cannot convert type 'IECVARACCESS(iecvaraccess, 4.4.0.0 (system))' to type 'IIecVarAccess17' [ERROR] iecvaraccess, 4.4.0.0 (system): QueryInterface [IecVarAccess]: C0231: Expression of type 'BOOL' expected in this place [ERROR] iecvaraccess, 4.4.0.0 (system): QueryInterface [IecVarAccess]: C0077: Unknown type: 'ITFID_IIecVarAccess17' [ERROR] iecvaraccess, 4.4.0.0 (system): QueryInterface [IecVarAccess]: C0046: Identifier 'ITFID_IIecVarAccess17' not defined Compile complete -- 6 errors, 101 warnings Build complete -- 6 errors, 101 warnings : No download possible
Last updated: 2023-09-25

Post by amy123 on JSON Utilities ENUM to STRING ^{CODESYS Forge talk (Post)}
Hello, Is it possible to get the string returned from the ENUM JSONType? I read that with regular enumerations you can add '{attribute 'to_string'}' and access it. However, this is from the compiled library, so I can not add that attribute. When I try to use TO_STRING(JSONType) it returns the integer as a string. Ex. jsonType :=TO_STRING(pJSONData^._aJSONData[i].eType); gives '8' instead of NONE Thanks!
Last updated: 2024-12-09

Post by gatto on Read codesys version in the codesys application ^{CODESYS Forge talk (Post)}
hi, i used another way declaration: pApp : POINTER TO APPLICATION; pAppInfo : POINTER TO APPLICATION_INFO; ProjectName : STRING (24) ; CodesysVersion : STRING (15) ; code: //library : // CmpApp // IoDrvEthernet // // Get Pointer to current application pApp := CmpApp.AppGetCurrent( pResult:= 0 ); // Get Pointer to Application information pAppInfo := CmpApp.AppGetApplicationInfo(pApp:= pApp, pResult:= 0 ); ProjectName := pAppInfo^.pstProjectName^ ; //convert codesys version to string CodesysVersion := IoDrvEthernet.UDINT_TO_IPSTRING ( udiIPAddress := pApp^.udiPSVersion ) ; so i think you need to convert your dwVersion in a UDINT and after convert UDINT_TO_IPSTRING
Last updated: 2025-01-17

Post by simover on TCP/IP client ^{CODESYS Forge talk (Post)}
I want to send a string to a tics TCP/IP server. I got i working with the Net Base lib. for communication good with this tcis i need to by array of byte I want to include a string in the third position of the array TCIS_Send[1] :=254; //this valus is fix for evry communication TCIS_Send[2] :=80; //this valus is fix for evry communication TCIS_Send[3] := ; here I put my and my string is lik this 5806509-DRAP10#AB#3452302073 TCIS_Send[4] :=252; //this valus is fix for evry communication
Last updated: 2023-12-18

Post by sajid on NMEA Serial data read in Control win v3 x64 ^{CODESYS Forge talk (Post)}
I am using the SerialCom example program from the CODESYS website to read NMEA strings in CODESYS Control Win V3 x64 through a serial-to-USB converter. However, I occasionally receive only partial data or encounter errors in the received string. A screenshot of expected NMEA string attached for reference. Could you please advise on how to ensure the full NMEA string is received consistently? Error in strRead variable is <value of="" the="" expression="" cannot="" be="" retrieved=""></value>
Last updated: 2025-10-16

Post by sajid on NMEA Serial data read in Control win v3 x64 ^{CODESYS Forge talk (Post)}
I am using the SerialCom example program from the CODESYS website to read NMEA strings in CODESYS Control Win V3 x64 through a serial-to-USB converter. However, I occasionally receive only partial data or encounter errors in the received string. A screenshot of expected NMEA string attached for reference. Could you please advise on how to ensure the full NMEA string is received consistently? Error in strRead variable is <value of="" the="" expression="" cannot="" be="" retrieved=""></value>
Last updated: 2025-10-16

Post by timvh on KeyPad Function in Visualization to fill a table ^{CODESYS Forge talk (Post)}
Create an array of STRING and 1 INT variable, e.g.: asMyString : ARRAY[0..9] OF STRING; iIndex : INT; Then place a "Table" object in the visualization: - link this to the string array variable. - Check the option "Use Template" - Then in the Input Configuration - add the "Write Variable" command Somewhere else add a "Combobox, array" - link this to the same array. - And link the index to the INT variable. In the Combobox, you can then select one of the strings from the array. The index variable will indicate which selection has been made.
Last updated: 2026-01-08

Post by ihatemaryfisher on Sorting array of any-sized structure ^{CODESYS Forge talk (Post)}
With that I could make an array of varying size, but would still have to define the array type in the function's declaration VAR_IN_OUT stArray: array [*..*] of <pre-defined data type> END_VAR I wanted a function that could take an array of any type (e.g., a structured VAR) as an input. That way I could call it in multiple POUs to handle different arrays structures.
Last updated: 2023-08-18

Post by simotion on Inheritance of axis ^{CODESYS Forge talk (Post)}
I have developped a function block 'Axis' the inherits from 'AXIS_REF_SM3' -> FUNCTION_BLOCK Axis EXTENDS AXIS_REF_SM3 In my global variable list I define a variable MasterDrive of type Axis and assign Axis1. Axis1 is a virtual drive (AXIS_REF_VIRTUAL_SM3). This type should inherit from AXIS_REF_VIRTUAL. VAR_GLOBAL MasterDrive : Axis := Axis1; However I get the error 'Cannot convert type'. What is the way to obtain what I want : function block inheriting AXIS_REF_SM3 and initialising this function block with a Softmotion virtual or real axis?
Last updated: 2023-12-07

Post by timvh on Device logon problem following fresh install ^{CODESYS Forge talk (Post)}
In your project you selected the "CODESYS Control Win V3" as device, but the device you want to connect to is a "CODESYS Control Win V3 x64". Those are not the same. If you double click on the device during the network scan, you will get information that these are not the same, but that you can change the type in your project to the x64 bit type. Another option is to "right-click" on the device in the device tree of your project and select "update device" then select the x64 type.
Last updated: 2024-03-19

Post by i-campbell on FILE_OPERATION_DENIED ^{CODESYS Forge talk (Post)}
in your project, to access /var/opt/codesys/PlcLogic/my.file, use the string 'my.file' or '$$PlcLogic$$/my.file'
Last updated: 2023-10-17

Post by vladimirsmall on Send data to USB ^{CODESYS Forge talk (Post)}
Hello/ Need send some file ( for example Array of string) to USB. Which library need used for this. Thank you
Last updated: 2024-07-20

Post by ton on String nach erlaubten/unerlaubten Zeichen durchsuchen ^{CODESYS Forge talk (Post)}
Hi Timo, FUNCTION Sonderzeichen_Check : bool VAR_INPUT sInputString : STRING; // Zu prüfender String END_VAR VAR i: INT; iAsc: INT; END_VAR Sonderzeichen_Check:= TRUE; FOR i:= 0 TO len(sInputString) - 1 DO iAscii:= sInputString[i]; //Get ASCII value //Check value between 48('0') and 65('9') or between 65('A') and 90('Z') or between 97('a') and 122('z') or IF iAscii >= 48 AND iAscii <= 57 OR iAscii >= 65 AND iAscii <= 90 OR iAscii >= 97 AND iAscii <= 122 THEN //iAscii valit ELSE Sonderzeichen_Check:= FALSE; END_IF END_FOR Diese FUNCTION anrufen: VAR xTest1: BOOL; xTest2: BOOL; sCheck: STRING; END_VAR xTest1:= Sonderzeichen_Check(sInputString:= 'abcuharoahse89347KEWDL'); //=TRUE xTest2:= Sonderzeichen_Check(sInputString:= 'abcuharoahse89347KEWDL?'); //=FALSE IF Sonderzeichen_Check(sInputString:= 'CheckThisSting,') THEN sCheck:= 'OK'; ELSE sCheck:= 'NOT OK'; END_IF
Last updated: 2025-01-20

Post by bertcom on STRING conversions to DWORD ^{CODESYS Forge talk (Post)}
Hi rmaas, Do you have any explenation how to send it to Hercules? Thank you!
Last updated: 2025-02-01

Post by hugob on EtherNet/IP Device - Status "Diag string: 'Configure encapsulation Layer'" ^{CODESYS Forge talk (Post)}
I'm having the same issue. Did you find any solution? Thanks
Last updated: 2025-02-11

Post by marks on Siemens G120X via Ethernet/IP ^{CODESYS Forge talk (Post)}
Does anyone know the internals of Codesys well enough to interpret the diagnostic string?
Last updated: 2025-05-13

Post by bruceae on Special Characters ^{CODESYS Forge talk (Post)}
Hello, I am fairly new to the codesys environment. Is there a reference chart that I can look at in order to write special character in a string? The Special characters that I need to inclue inside the string are as follows; Null Bell Carriage Return I have a TCP_Write command that I am sending to an external device. In order for that device to function properly it needs to see the string with the null and bell characters as the header, followed by the desired command, terminated with the carriage return. Any reference sheet or how to write this in the actual string would be greatly appreciated.
Last updated: 2025-08-26

Post by hteich on Date and time to String variable ^{CODESYS Forge talk (Post)}
Did you find out how to do it? The link posted by lukas didn't help me much further
Last updated: 2025-10-07

Post by goki on Problem mit String in Globaler Variable ^{CODESYS Forge talk (Post)}
Hallo Zusammen Gibt es ein Beispiel wie ich dies so im Codesys 3.5 umsetzen kann?
Last updated: 2024-02-09

Post by installwhat on How to access to variable value through symbolic string name ^{CODESYS Forge talk (Post)}
https://help.codesys.com/api-content/2/codesys/3.5.12.0/en/_cds_operator_string_to/ Something like this?
Last updated: 2024-06-13

Post by installwhat on How to access to variable value through symbolic string name ^{CODESYS Forge talk (Post)}
https://help.codesys.com/api-content/2/codesys/3.5.12.0/en/_cds_operator_string_to/ Something like this?
Last updated: 2024-06-13

Post by macros8 on Alarm Management - latched variable represented as Text list ^{CODESYS Forge talk (Post)}
Hi, I haven´t noticed you put the comment here. I thing it´s a bit different. What I want is to have detail errors of technology in data type e.g. INT. This variable I would latch to the corresponding error msg but I would like to get it convert to text from the text list and not keep it in INT form. Example. Main error Valve Error: SubErrors 1 - Both sensors 2 - Not retracted in time 3 - Not pulled out in time In HMI Main error + latch SubErrors => "Valve Error: Both sensors" The benefit is that text lists are part of translation and can be easily manipulated. I know I can create whole string msg in PLC but then, it lose advantage of Alarm management. Thanks. M.
Last updated: 2023-11-07

Post by reinier-geers on Web client ^{CODESYS Forge talk (Post)}
Hi, ive got the webclient example. So now i want to use it. Ive got an example. but thats some JSON type. As far i know is JSONe som kind of structure. But thats new for me. I think its posible with get. Can someone help me? This is the link witch explains what to do https://reversed.notion.site/Marktprijzen-API-89ce600a88ac4abe8c2ad89d3167a83e i tried this : sURL : STRING(1024) := 'https://graphql.frankenergie.nl/get/ {"query":"query MarketPrices {\n marketPrices(date:\"2022-01-01\") {\n electricityPrices {\n from\n till\n marketPrice\n marketPriceTax\n sourcingMarkupPrice\n energyTaxPrice\n perUnit\n }\n gasPrices {\n from\n till\n marketPrice\n marketPriceTax\n sourcingMarkupPrice\n energyTaxPrice\n perUnit\n }\n }\n}\n"}'; // URL But thats a bad request
Last updated: 2025-10-08

Post by jbcregen on Accessing parameters from a structure or function block with the web interface ^{CODESYS Forge talk (Post)}
I have a project with hundreds of OPC-UA variables available on the network. A lot of these variables are used actively in various scripts that run in background in the OS (Linux). I'm experimenting with Automation Server and I have a hard time understanding how the web interface populates its parameters list for a given PLC (<plc details="" parameters="" for="" plc="" 'xyz'="">).</plc> In this page, it looks like the only variables available are the ones that are of a "base" type : bool, TIME, String, INT, etc. All the variables that are nested into function blocks or structures are not available in the web interface, even if they are available to any OPC-UA client. Is this a limitation of the Automation Server or is there something that can be done in Codesys?
Last updated: 2025-12-01

Post by bertcom on Converting each character to a string into ASCII ^{CODESYS Forge talk (Post)}
@TimvH, Thank you, i think this way i can seperate the complete string to characters. Next part of the topic is converting the characters to an ASCII code. Is there an standerd function in Codesys for this? I alredy searched a few hours for it on the internet. no succes.
Last updated: 2024-11-11

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