Post by mawaloc on KeyPad Function in Visualization to fill a table ^{CODESYS Forge talk (Post)}
Hello Everybody, Hope you're all doing good for this new year. Since a time, I'm looking on how to use the KeyPad in vizualization to fill a textlist or something similar. my application is : In one window, I would need to be able to writte a string linked to an Numeric Values. => I can't use a std text list inside my software, as per this would be custom by customer. then from another windows I would need a "text box" to be able to select any of this String. I hope it's clear enought. thankyou for the help
Last updated: 2026-01-07

Post by thedertom on Help with DynamicTextGetTextW ^{CODESYS Forge talk (Post)}
Hi I try to get korean texts out of a textlist. For that I want to use DynamicTextGetTextW, but I am a little confused how it is supposed to work. The function returns POINTER TO STRING, but how do I get WSTRING? I succesfully used DynamicTextGetText with classical Strings. Thanks in advance!
Last updated: 2024-09-02

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 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 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 felipemsgarcia on EtherCAT - Force Control Word ^{CODESYS Forge talk (Post)}
What worked for me: Use SMC_SetControllerMode and set the nControllerMode to SMC_nocontrol. With that, you can control the drive via Modes of Operation(16#6060) and Controlword(16#6040) directly. Hope that helps, Cheers!
Last updated: 2023-08-31

Post by dhumphries on Not able to see input data coming from eip adapter on codesys ^{CODESYS Forge talk (Post)}
The green icon with an ! next to the device is concerning. Is the data type correct for the input, you are using a byte input but the description says string. Is there anything useful in the status tab?
Last updated: 2024-03-06

Post by installwhat on How to access to variable value through symbolic string name ^{CODESYS Forge talk (Post)}
Maybe your question makes sense but I don't see it. Maybe you should rephrase and add a lot of detail
Last updated: 2024-06-13

Post by macros8 on Translation - How to get text as reference in Frames translated? ^{CODESYS Forge talk (Post)}
Hi all, I need a help. I want to create Frame where some parameters are done via reference input to this frame. What I have realized that if I use for Label/Caption etc. string variable (%s) it is not included in translation list. This is a quite a big deal and I did not find way how to add text to the list manually. Would you give me a hint how to proceed? I hope there is a way (workaround) how to do it. Thanks a lot. M.
Last updated: 2023-12-01

Struggling to connect to EK1100 to Raspberry Pi ^{CODESYS Forge talk (Thread)}
Struggling to connect to EK1100 to Raspberry Pi
Last updated: 2025-03-30

How to use matlab to send parameters to codesys ^{CODESYS Forge talk (Thread)}
How to use matlab to send parameters to codesys
Last updated: 2018-10-10

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 solidlogicguy on Little endian to Float from Modbus RTU ^{CODESYS Forge talk (Post)}
Hello, I got a device from which I require to read values from I am using a WAGO PLC 750-8212 and I am communicating through Modbus Master FUNCTION BLOCK from library WagoAppPLCModbus in Codesys 3.5 to this device. I already receive data from the device that is a CVM to monitor voltage from a fuel cell. The technical support of the company that makes these devices says that the data is sent in little endian form. And I want to convert it to a float value. The tech support sent me the next instructions of how to do it but I am new using codesys, so any advice or help I will really appreciate so much. Message from tech support: The process is complicated, better to do it with already implemented library in the language/program you use. Basically the process should be next: To convert the two Modbus registers containing parts of a 32-bit float in little-endian byte order to a floating-point number using mathematical operations, you first need to combine the two 16-bit integers (assuming reg1 is the lower word and reg2 is the higher word) and then interpret the result according to the IEEE 754 standard. Given: - Register 192 (reg1) = 4096 - Register 193 (reg2) = 14884 Step 1: Combine the two registers. Since we are dealing with little-endian byte order, reg2 is the high word, and reg1 is the low word: combined = reg2 * 2^16 + reg1 combined = 14884 * 65536 + 4096 combined = 975175680 + 4096 combined = 975179776 Step 2: Convert the combined value to binary: combined_binary = '1110101101011100000000000000000' Step 3: Split the binary into IEEE 754 components: Sign bit (1 bit): 0 Exponent (8 bits): 11101011 Mantissa (23 bits): 01011100000000000000000 Step 4: Convert the binary exponent to decimal and subtract the bias (127 for 32-bit floats): exponent = int('11101011', 2) - 127 exponent = 235 - 127 exponent = 108 Step 5: Calculate the mantissa as a fraction: The mantissa in IEEE 754 format is the fractional part after the leading 1 (which is implicit). Therefore, we need to convert the binary mantissa to decimal and add the implicit leading 1: mantissa_fractional = 1 + int('01011100000000000000000', 2) / 2^23 mantissa_fractional = 1 + 18688 / 8388608 mantissa_fractional = 1 + 0.002227783203125 mantissa_fractional ≈ 1.002227783203125 Step 6: Combine the sign, exponent, and mantissa to get the float value: float_value = (-1)^0 * mantissa_fractional * 2^exponent float_value = 1 * 1.002227783203125 * 2^108 Because the exponent is quite large, the resulting float value is a very large number.
Last updated: 2023-12-15

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 nano on How to access to variable value through symbolic string name ^{CODESYS Forge talk (Post)}
i know, this is the reason for us either. PLC-Handler is to big, and only available with additional Contracts/Costs. OPC-UA is to slow for us. As described, there is a solution available, but im not allowed to post them here. i would prefer you send a message at codesys store by "have a question" or similar called. Not sure. Or, if an Codesys-Official Member allows to share that informations, i can give you the right hints.
Last updated: 2024-06-15

Post by ph0010421 on How to create a stopwatch? ^{CODESYS Forge talk (Post)}
Do you need an 'hours-run' counter? And 1 second resolution is ok? I think you're over-thinking it. (The task time needs to be < 1second) Have a look at the LAD... Then, the time in seconds can be made into hh:mm:ss with this FUNction Declarations: FUNCTION funSecondsToStringTime: string VAR_INPUT InSeconds: UDINT; END_VAR VAR AsString: STRING; Minutes: UDINT; Hours: UDINT; Seconds: UDINT; MinutesAsString: STRING(2); HoursAsString: STRING(2); SecondsAsString: STRING(2); END_VAR and the code: Hours := InSeconds / 60 / 60; //Derive hours Minutes := (InSeconds - (Hours * 60 * 60)) / 60; //Derive minutes Seconds := InSeconds - ((Hours * 60 * 60) + (Minutes * 60));//Derive seconds HoursAsString := UDINT_TO_STRING(Hours); MinutesAsString := UDINT_TO_STRING(Minutes); SecondsAsString := UDINT_TO_STRING(Seconds); IF LEN(HoursAsString) = 1 THEN HoursAsString := CONCAT('0',HoursAsString); END_IF; IF LEN(MinutesAsString) = 1 THEN MinutesAsString := CONCAT('0',MinutesAsString); END_IF; IF LEN(SecondsAsString) = 1 THEN SecondsAsString := CONCAT('0',SecondsAsString); END_IF; AsString := CONCAT(HoursAsString, ':'); //assemble string AsString := CONCAT(AsString,MinutesAsString); AsString := CONCAT(AsString,':'); AsString := CONCAT(AsString, SecondsAsString); funSecondsToStringTime := AsString;
Last updated: 2023-12-08

Post by edson-bueno on SysProcess Execute Command unable to run commands with special characters ^{CODESYS Forge talk (Post)}
Hi, I found the same issue, and I fixed with this steps: 1st go to codesys .cfg file. sudo nano CODESYSControl.cfg Then insert this: [SysProcess] BasePriority=Realtime Command=AllowAll Now we need to grant codesys root rights on Linux. Step 1: Create or edit the systemd override configuration: sudo systemctl edit codesyscontrol In the editor that opens, insert: [Service] User=root Save and exit: Press Ctrl+O to save Press Ctrl+X to exit Step 2: Reload systemd and reboot To apply the override: sudo systemctl daemon-reexec sudo systemctl daemon-reload sudo reboot Step 3: Confirm CODESYS is running as root After reboot, open the terminal and run: ps aux | grep codesyscontrol You should see something like: root 1234 ... /opt/codesys/bin/codesyscontrol.bin ... If instead it shows admin or another user, the override was not applied correctly. Step 4: (Optional) Confirm from within CODESYS In your CODESYS project, insert this test code to run the Linux command whoami: Make sure the lib SysProcessImplementation, SysTypes, and CmpErrors is on the project. VAR sCommand : STRING := '/usr/bin/whoami'; sOutput : STRING(255); refCommand : REFERENCE TO STRING; refOutput : REFERENCE TO STRING; resultCmd : UDINT; END_VAR refCommand REF= sCommand; refOutput REF= sOutput; SysProcessExecuteCommand2( pszCommand := refCommand, pszStdOut := refOutput, udiStdOutLen := SIZEOF(sOutput), pResult := ADR(resultCmd) ); Notes & Warnings This method gives full system access to the CODESYS runtime — do not expose this system to the public network without protection. Do not use sudo in commands inside CODESYS when the runtime is already running as root. @tomas111, in case you want to read the temperatur, use this command: sCommand:STRING:='/usr/bin/vcgencmd measure_temp';
Last updated: 2025-05-20

Post by jzhvymetal77 on Special Chars in Visualizationfor QR code string ^{CODESYS Forge talk (Post)}
Ok, I got UTF-8 encoding working by encoding the full block character using [16#E2, 16#96, 16#88], which corresponds to U+2588 "█". Moving forward, I’ll use this for creating a QR code with Version 10-M (byte mode). This version allows up to 213 characters to be encoded.
Last updated: 2025-10-04

Post by nano on How to access to variable value through symbolic string name ^{CODESYS Forge talk (Post)}
this is not easily. From Point of SL-Licenses Codesys didnt provide the informations how to do. We created an own CDS-Component for that Behaviour. This Informations are available for OEM, if you are an OEM you can find the Informations in the RTS-Documentation.
Last updated: 2024-06-14

Post by george32 on TCP Server ^{CODESYS Forge talk (Post)}
Thank you for your advice Rinie, I have tried to follow this example but found one problem.When I disconnect with Hercules the system does not acknowledge the lost of its connection this could result in critical errors. Because of this error I am trying to implement the Syssocket library. With this library I am having a problem which I could not solve. I have the following code: ip_adres : STRING :='0.0.0.0'; port : WORD := 5000; iStep : INT := 1; // Socket information Socket_handler : SysSocket_Interfaces.RTS_IEC_HANDLE; Socket_handler_result : SysSocket_Interfaces.RTS_IEC_RESULT; Socket_adress : SysSocket_Interfaces.SOCKADDRESS; Addres_Convert : SysSocket_Implementation.RTS_IEC_RESULT; // Bind information Bind_handler : SysSocket_Interfaces.RTS_IEC_RESULT; // Listener Information Listener_handler : SysSocket_Interfaces.RTS_IEC_RESULT; Addres_Convert := SysSocket_Implementation.SysSockInetAddr(szIPAddress:= ip_adres,pInAddr:= ADR(Socket_adress.sin_addr)); Socket_adress.sin_family:= SysSocket_Interfaces.SOCKET_AF_INET; Socket_adress.sin_port := SysSocket_Implementation.SysSockHtons(usHost:= port); CASE iStep OF 1: // Create Socket Socket_handler :=SysSockCreate( iAddressFamily :=SysSocket_Interfaces.SOCKET_AF_INET, diType:=SysSocket_Interfaces.SOCKET_STREAM, diProtocol:=SysSocket_Interfaces.SOCKET_IPPROTO_TCP, pResult:=ADR(Socket_handler_result)); IF Socket_handler = SysSocket_Interfaces.RTS_INVALID_HANDLE THEN iStep := 1; ELSE iStep := 2; END_IF 2: Bind_handler := SysSocket_Implementation.SysSockBind( hSocket:=Socket_handler, pSockAddr :=ADR(Socket_adress), diSockAddrSize:=SIZEOF(Socket_adress) ); 3: Listener_handler := SysSocket_Implementation.SysSockListen( hSocket :=Socket_handler, diMaxConnections :=1); END_CASE When I am trying to get this working, the SysSockBind function gives a value of 16#207 which means adress already in use. I find this weird because of the IP-adress of 0.0.0.0. I think I am converting the Ip-adress in the wrong way, but the code does not give a error arround this. So therefore I cannot find the solution to this problem. I hope someone could help me with this problem. Thanks in advance George
Last updated: 2025-02-20

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 eaglealex on Length of string and Array of bytes ^{CODESYS Forge talk (Post)}
Thank you for your answer! I know that 0 will be the end of the string. I checked it. There is no 0 in array of bytes. I made screenshots. There is array of bytes, aborted string and the result of my test via online converter.
Last updated: 2025-04-02

Unable to connect to this device ^{CODESYS Forge talk (Thread)}
Unable to connect to this device
Last updated: 2024-06-28

Cursor to move to a control ^{CODESYS Forge talk (Thread)}
Cursor to move to a control
Last updated: 2025-08-12

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