Post by leon78 on Codesys 3.5 SP17 Patch 2 CheckBounds (POUs for Implicit Checks) ^{CODESYS Forge talk (Post)}
Unfortunately, it was fixed in SP19, but I need SP17 CDS-82162 Bug Compiler: Checkbounds is not working for dynamic arrays with VAR_IN_OUT as index access Fixed [[GENERAL]] Compilerversion >= 3.5.19.0 https://de.codesys.com/fileadmin/data/Images/System/Releaseinformation/Release-Notes-CODESYS-35190.html
Last updated: 2023-11-16

Post by seesle on Extracting information out of a *.library or *.compiled-library file ^{CODESYS Forge talk (Post)}
Hey there, is there a way to extract any data out of a .library or a .compiled-library file? Do you have any tools or a description of the binary or something like this to get for example the referenced libraries of a *.library file or any other stuff? Thx in advance M.
Last updated: 2023-12-04

Post by talhaali on Adding a variable from text list into ST code ^{CODESYS Forge talk (Post)}
Hi, can I use a entry of a text list as variable in structured text? for example in attach picture, if i use want to use data of first row. I am trying to write: A : STRING := TextList.Default.0; but it is not workings
Last updated: 2023-12-07

Post by talhaali on Adding a variable from text list into ST code ^{CODESYS Forge talk (Post)}
Hi, can I use a entry of a text list as variable in structured text? for example in attach picture, if i want to use data of first row. I am trying to write: A : STRING := TextList.Default.0; but it is not workings
Last updated: 2023-12-07

Post by davidbo on i2c How does CODESYS handle exception or error messages. ^{CODESYS Forge talk (Post)}
For Raspberry Pi I have made a python script which regularly read a bulk of data over the ic2 from a device. Sometimes I get an Exception an IOError. I assume similar things can happen in CODESYS. So how does CODESYS handle that? Can I get any info about such an event?
Last updated: 2024-02-07

Post by reinier-geers on SysFileOpen does not work after update to V3.5 SP19 Patch 5 ^{CODESYS Forge talk (Post)}
At 19.1 the hFile_test should be RTS_IEC_HANDLE and always open-write - close in one cycle udi_handle: RTS_IEC_HANDLE; //handle-number. Is created by SysFileOpen udi_handle:=SysFileOpen(sFileName,Sysfile.AM_WRITE_PLUS, ADR(udi_ErrorCode)); udi_RetValWrite:=SysFileWrite(udi_handle, pRemBuffer, szRemBufSize, ADR(udi_ErrorCode)); //closing file IF udi_RetValWrite < szRemBufSize THEN ui_Error:=cWriteError; END_IF//error writing data udi_ErrorCode_Close:=SysFileClose(udi_handle);
Last updated: 2024-02-19

Post by i-campbell on Not able to see input data coming from eip adapter on codesys ^{CODESYS Forge talk (Post)}
Hello, I think you can try to change the Connection from Multicast to Point to Point. Please also make sure your windows firewall is allowing the correct UDP ports inbound for ethernet IP. You might also need to increase the RPI, so it times out slower.
Last updated: 2024-03-07

Post by mos89p on how to use UseDataExpanding() in datasource ^{CODESYS Forge talk (Post)}
Hi I need to update by software some structures in my datasource, i found this example: https://content.helpme-codesys.com/en/CODESYS%20Communication/_cds_update_data_interface.html it seems that because i use complex variable structure i need to use UseDataExpanding() instead of use data, the question is how to get an instance of IDatasourcesMgr3 i have the global variable g_Datasources is instantiated automatically
Last updated: 2024-06-18

Post by koppit on SysComRead Timeout Parameter ^{CODESYS Forge talk (Post)}
Im using SysCom ver. 3.5.17.0 and seem to have the same issue on a Raspberry Pi. It's not waiting for the requested number of bytes, no matter if "ulTimeout := SYS_INFINITE" or any other value. The only solution I have found is to stall the program to allow the serial port to recieve the data.
Last updated: 2024-06-26

Post by tomast on Communication PLC with HMI - how to send DUT via NVL. ^{CODESYS Forge talk (Post)}
Hi everyone, I am working with project where i have DUT wihth struct. I would like to fill this data trough a form on HMI. I use NVL to communicate and i would like to know how is it possible to do this? Thanks for all your advice in advance.
Last updated: 2024-08-23

Post by hassaank on CODESYS V3+ WAGO PFC200+ MODBUS RTU ^{CODESYS Forge talk (Post)}
Hi everyone, I’m new to CODESYS and Wago devices, and I’m trying to set up Modbus RTU communication. I have a Wago PFC200 (8110) and a 750-653 RS485 module, and I want to read data from an energy meter using Modbus RTU. Thanks in advance for your help!
Last updated: 2025-03-17

Post by lacypaige on Engineering Dissertation Help & Assignment Assistance. ^{CODESYS Forge talk (Post)}
This thread is for discussing engineering dissertation help, including research methods, choosing a topic, writing, and data analysis. Whether you need advice on structuring your dissertation, understanding industry trends, or solving research challenges, this is the place to ask questions and share ideas. Feel free to exchange tips, discuss best practices, and get support with engineering assignments and dissertations.
Last updated: 2025-03-19

Post by kevinm on Attaching Trace variable to Frame Configuration Variable ^{CODESYS Forge talk (Post)}
Is it possible to show a variable from a Frame Configuration in a Trace on that Visualization? I want to pass the FB for an AXIS_REF_ETC_SoE_Standard to the visualization and display live axis data in the visualization. However, I cannot find a way to use a Frame Configuration variable in the Trace Configuration dialog.
Last updated: 2025-04-04

Post by rossanoparis on After un upgrade of "CODESYS Control for Raspberry Pi MC SL" from v4.7 to v4.9 SysFileOpen function stopped working ^{CODESYS Forge talk (Post)}
For those who will step on this thread. Everything is fine, I had only to increase by 1 my place holders number. For sure the system is occupying the number 1 without being declared ... Below the modification I made to get my code working. [SysFile] PlaceholderFilePath.2=/home/pi/hpca/bin, $hpcabin$ PlaceholderFilePath.3=/home/pi/hpca/cfg, $hpcacfg$ PlaceholderFilePath.4=/home/pi/hpca/logs, $hpcalogs$ PlaceholderFilePath.5=/home/pi/hpca/resources, $hpcares$
Last updated: 2023-08-22

Post by dasch on eCockpit - unable to start simulation ^{CODESYS Forge talk (Post)}
This is a known bug in e!Cockpit. See Release notes of V 1.11: 1 e!Cockpit Release Version 1.11 (2022-07) ATTENTION: If a library that uses asynchronous tasks (e.g. WagoAppConfigTool, WagoAppCloud or function modules such as Dali-Master) is dragged into the project, the simulation cannot be started. It is already sufficient to add the library to the project (an FB does not even have to be instantiated). I guess you are using one of these libraries/modules in your project. We e.G. often use PWM modules, these are also affected.
Last updated: 2023-09-05

Post by ofey on Symbol configuration / GVL ^{CODESYS Forge talk (Post)}
Hi! I have som variables that I communicate to a Modbus Master. These variables are declared in a "Global Variable List" where I have assigned them memory addresses. To organize this mapping I want to make a MODBUS list where I show all the variable names together with the memory address. Is there an easy way to export this list from CODESYS? Either through script or some export function maybe?
Last updated: 2023-10-11

Post by ofey on Symbol configuration / GVL ^{CODESYS Forge talk (Post)}
Hi! I have som variables that I communicate to a Modbus Master. These variables are declared in a "Global Variable List" where I have assigned them memory addresses. To organize this mapping I want to make a MODBUS list where I show all the variable names together with the memory address. Is there an easy way to export this list from CODESYS? Either through script or some export function maybe?
Last updated: 2023-10-11

Post by tehthoams on Find Function: Object reference not set to an instance of an object. ^{CODESYS Forge talk (Post)}
Hey, Sorry this isn't super helpful, but i had this problem once and was able to resolve it. I can't recall how I solved it and whether it was a problem with my codesys installation or the project itself. If it is the codesys installation, make sure all your required libraries and plugins are installed and available. compare with a colleagues installation if possible. I vaguely recall saving a copy of my project and deleting things one by one until the error went away...
Last updated: 2023-10-30

Post by tehthoams on Find Function: Object reference not set to an instance of an object. ^{CODESYS Forge talk (Post)}
Hey, Sorry this isn't super helpful, but i had this problem once and was able to resolve it. I can't recall how I solved it and whether it was a problem with my codesys installation or the project itself. If it is the codesys installation, make sure all your required libraries and plugins are installed and available. compare with a colleagues installation if possible. I vaguely recall saving a copy of my project and deleting things one by one until the error went away...
Last updated: 2023-10-30

Post by nathant on Some visualization objects disappear when user is logged in? ^{CODESYS Forge talk (Post)}
I am deploying a webvisu on Codesys 3.5 SP 19.2 with legacy user management. I noticed that when a user logs in, some text and a rectangle I have (for aesthetics) both disappear. I made sure that none of the objects in question are linked to a state variable. Anyone know the cause/solution to this? Nothing crucial to the machine's function is lost, but it is a little annoying.
Last updated: 2023-12-15

Post by paro on Client Independent Visualization Switching ^{CODESYS Forge talk (Post)}
Hi, can you please provide a new example for the topic at CODESYS "Client Independent Visualization Switching" https://forge.codesys.com/prj/codesys-example/client-independ/home/Home/ Since a few versions, the functions used cause warning messages. Examples for the use of all function blocks from the Visu Utils would generally be very helpful! Several people have put together an example here: https://forum-de.codesys.com//download/file.php?id=2240 BR Patrick
Last updated: 2023-12-20

Post by wiresplus on INT_TO_WORD function not working ^{CODESYS Forge talk (Post)}
Hello, I need to take an INT input, and convert it to a WORD value. VAR DRV2Speed : WORD; //IO card takes a WORD where 16000 = full 10V output (equivalent to 50Hz) PumpFillSpeed : INT; //Users enter a value between 0 and 50 END_VAR IF <conditions> THEN DRV2Speed :=INT_TO_WORD((PumpFillSpeed/50)*16000); END_IF </conditions> According to me this should work - but it stays at 0, no matter what. What am I doing wrong?
Last updated: 2024-01-26

Post by ojz0r on INT_TO_WORD function not working ^{CODESYS Forge talk (Post)}
That calculation will not work the way you expect it to. If PumpFillSpeed is limitied to 0-50 then the only whole number would be 50/50 = 1 everything else is 0.0-0.9999... and since you are using word and integer only 50 would work since there is no representation for mantissa in integer values. Declare a temporary real variable and do the calculation and then do a REAL_TO_WORD in the DRV2Speed assignment.
Last updated: 2024-01-26

Post by thomas-moba on "sudo"-Befehle über die Funktion "SysProcessExecuteCommand2" ^{CODESYS Forge talk (Post)}
Hello, I need to execute "sudo" commands via CoDeSys 3.5 SP 19 P5 using the "SysProcessExecuteCommand2" function. Commands without sudo are no problem, but as soon as sudo is used in a .sh or a single command, it does not work. Command=AllowAll is entered under "SysProcess" in CODESYSControl.cfg. Nevertheless it does not work. Does anyone know what the problem could be? Greetings, Thomas
Last updated: 2024-02-01

Post by otdeveloper on IEC 61499 ^{CODESYS Forge talk (Post)}
It is being worked on by many companies and its even-driven function blocks seem like a natural evolution of the object oriented industrial programming I have seen Gary Pratt (author of the Book of CODESYS and much more) so expertly implement and explain. I would expect CODESYS to have this front and center on their sights and, if they do not, I would be very interested in learning why.
Last updated: 2024-02-09

Sort by relevance or date