Post by sigurdrb on Read codesys version in the codesys application ^{CODESYS Forge talk (Post)}
Hi! I want to read the codesys version into the project, so I can highlight it in the SCADA system. VAR dwVersion : DWORD; END_VAR SysTarget.SysTargetGetVersion(pulVersion := ADR(dwVersion)); This gives me the value 100859909. I tried to search ths up and found som older post (https://forge.codesys.com/forge/talk/Runtime/thread/a55981ff4d/) that said each 4 bytes reads a number in the version. Example is 50662666 = 16#03050D0A which reads to V3.5.13.10 When I run this code I get the value 100859909, which I cant translate to anything meaningful. I am running it on Codesys V3.5.19.70. Help appreciated!
Last updated: 2025-01-17

Post by antonz on CoDeSys v3.5: creating libraries for both 32-bit and 64-bit controllers ^{CODESYS Forge talk (Post)}
Follow up question: in the Project Settings, under Library Development, there is an option related to this: Check all Pool Objects -> Pointer size to use Options are: * 32 Bit * 64 Bit * 32 and 64 Bit The descriptions and online help suggest to me this is only relevant for checking and showing any incorrect pointer types as an error in the IDE. E.g. using a DWORD to store a pointer value on a 64-bit controller. It would not control the creation of either 32-bit or 64-bit compiled libraries. Is that correct?
Last updated: 2025-09-01

Post by john-robinson on Limiting Memory Access of an Array to Within its Bounds ^{CODESYS Forge talk (Post)}
Recently we had an issue regarding some simple code to calculate a rolling average. The code indexes from zero to 199 to properly store the current input into a circular buffer which then allows us to calculate a rolling average: VAR input_5s : REAL; outs_arr : ARRAY[0..199] OF REAL; i : USINT := 0; END_VAR ___ //this code runs every five seconds, calculating a rolling average outs_arr[i] := input_5s; i := i + 1; output := OSCAT_BASIC.ARRAY_AVG(ADR(outs_arr), SIZEOF(outs_arr)); IF i >= SIZEOF(outs_arr) THEN i := 0; END_IF There is a simple bug in this code where the index will be set to 0 when it has surpassed the length of the array in bytes (800 in this case) rather than larger than the number of reals in the array (200). The solution here is simple, replacing i >= SIZEOF(outs_arr) with i >= SIZEOF(outs_arr)/SIZEOF(outs_arr[0]). In this example when the index increased to 201 and the line outs_arr[201] := input_5s was called, codesys arbitrarily wrote to the address in memory that is where outs_arr[201] would be if the array was that long. I would like to find a way to wrap the codesys array inside of a wrapper class that checks if an input is within the bounds of an array before writing to that value. I know how I would implement that for a specific array, I could create a method or class that takes an input of an array of variable length, ie. ARRAY[*] OF REAL, but I don't know how to make this for any data type. I am wondering if anyone has ever done anything similar to this, or has any better suggestions to ensure that none of the programmers on this application accidentally create code that can arbitrarily write to other locations in memory.
Last updated: 2024-03-05

Post by disha on Export data with the Trend API ^{CODESYS Forge talk (Post)}
Can you please share the code as i am the beginner for codesys. I don't have any idea that how sqlite is integrated with the codesys.
Last updated: 2024-07-08

Post by reinier-geers on Syssockping hang up V3.5.9.2 ^{CODESYS Forge talk (Post)}
For data logging on a server i check the connection with Syssockping. When i do that it seems to hang uo the system once a while for 13 seconds. Why ??
Last updated: 2024-09-02

Post by damian177 on Problem with downloading OPC UA tags by Data Source Manager ^{CODESYS Forge talk (Post)}
In my OPC UA Server is about 12 thousands tags. Can by possible that downloading tags from OPC UA Server lasts a long time , and when expires about 2 hours (demo license time) that downloading freezes ?
Last updated: 2024-09-04

Post by dengsberg on Check Connection Status of the OPC-UA Server for Data Source Manager with OPC-UA Client ^{CODESYS Forge talk (Post)}
Another question is how to test the quality of the individual variable?
Last updated: 2024-09-07

Post by jobtc on Count alarms within a Class or Group ^{CODESYS Forge talk (Post)}
Is it possible within codesys 3.5 SP16 Patch 5, to get some data from the alarm manager? For example: i want to know how many alarms i have within a class Thx for the help
Last updated: 2024-09-13

Post by dekr on Visu User Management Dialog - Add user does not work ^{CODESYS Forge talk (Post)}
After the user data has been entered, the page symbol at the top left must be pressed before OK is pressed.
Last updated: 2024-10-18

Post by banialuk on Modbus TCP Server ^{CODESYS Forge talk (Post)}
Hello, I have poroblem with define input in function block modbusFB.serverTCP 'dataModel', in my aplication I need starting Input Registers from 3000, and I must define this in 'data Model' but I dont now how exacly to do it. Anybody now somethin about this?
Last updated: 2024-10-19

Post by eschwellinger on Persistence Manager: Config File not found? ^{CODESYS Forge talk (Post)}
..strange just switching of this device without graceful Linux OS shutdown? Reset orgin on the device tree and a new download of the application will bring it up and running again but sure then the persistent data are for sure lost.
Last updated: 2024-11-02

Post by reinier-geers on Monitor a Can J1939 ^{CODESYS Forge talk (Post)}
Hi , Can i monitor a other Canbus and use the data ? Ive got a mobile crane. So i want to add a device with an unused adres. Then Read the Joystick and use some buttons for an optional device
Last updated: 2025-01-15

Post by domebruce on Which database to use? ^{CODESYS Forge talk (Post)}
I'm new on Codesys. I need to manage a large and complex data set, which database and library you suggest to use? Some application examples will be appriciated. Thanks
Last updated: 2025-03-04

Post by respl on Codesys Symbolic Access ^{CODESYS Forge talk (Post)}
We need to exchange data between two controller IFM and EXOR. Our one controller support codesys symbolic access while other support COdesys V3 application. can anybody tell me how to do communication between these two. Sample program will be highly appreciable. Regards, Rahul Sayre
Last updated: 2025-03-20

Post by kuegerls on Programmatically clearing or syncing Data Source Manager cache? ^{CODESYS Forge talk (Post)}
Hi everyone, is there a way to programmatically clear the cache of the Data Source Manager in CODESYS so that variable values are re-synchronized from the OPC UA server (Symbol Configuration with OPCUA features)? Alternatively, is it possible to trigger a manual synchronization of data source variables from within the application code at runtime? Here’s the situation: A variable is first written by the OPC UA client to the server in one state of a state machine and changes to another state – so the initial communication works. Later, the server changes the variable value, but the client does not receive or reflect the updated value, unless the variable is actively written again. I’m looking for a way to force the client (data source manager) to re-read or refresh the variable state from the server, possibly by clearing the internal cache or triggering a sync. Any ideas or suggestions would be greatly appreciated! Thanks!
Last updated: 2025-05-23

Post by blitz on SMC_CNC_INTERNAL_ERROR - SMC_ReadNCFromStream ^{CODESYS Forge talk (Post)}
Hi. Has anyone managed to implement the MDI (Manual Data Input) functionality in CODESYS CNC? I'm using SMC_StringStream2 and SMC_ReadNCFromStream, but I'm getting the error: SMC_CNC_INTERNAL_ERROR. I'd really appreciate any suggestions beyond what's already available online.
Last updated: 2025-07-09

Post by kumareasu on Cursor to move to a control ^{CODESYS Forge talk (Post)}
How to move cursor to a particular control in HMI through PLC program to enter data from keyboard without using tocuhscreen or mouse
Last updated: 2025-08-08

Post by pernockham on Persistence Manager: Config File not found? ^{CODESYS Forge talk (Post)}
Ok, think I understand. The reason for the error is I try to include complex variables (FB) in the persistenced data. I will try to use {attribute 'ac_persist_exclude'} to exclude those elements.
Last updated: 2025-08-22

Post by pernockham on Persistence Manager: Config File not found? ^{CODESYS Forge talk (Post)}
Confirmed. Variable types that should be excluded: BIT Pointer Interfaces Constants Arrays of non-persistent data types Docs: https://content.helpme-codesys.com/en/CODESYS%20Application%20Composer/ac_pm_definition_persistent_variables.html
Last updated: 2025-08-24

Post by leonekreiger on Persistence Manager: Config File not found? ^{CODESYS Forge talk (Post)}
Confirmed. Variable types that should be excluded: BIT Pointer Interfaces Constants Arrays of non-persistent data types Docs: https://content.helpme-codesys.com/en/CODESYS%20Application%20Composer/ac_pm_definition_persistent_variables.html Thank you, I have successfully fixed that error.
Last updated: 2025-09-26

Post by dkugler on Requesting ESI Files for Estun Pronet Servo Drives (EtherCAT) ^{CODESYS Forge talk (Post)}
you have visited https://en.estun.com/?list_139/1380.html and registered and there are no ESI files at data download? Asked the manufacturer?
Last updated: 2025-09-29

Post by nchau on Requesting ESI Files for Estun Pronet Servo Drives (EtherCAT) ^{CODESYS Forge talk (Post)}
Yes, that's correct. I registered and visited the page at https://en.estun.com/?list_139/1380.html , but there were no ESI files available under the Data Download section. I also tried contacting the manufacturer directly, but haven’t received any response yet.
Last updated: 2025-10-03

Post by reinier-geers on JSON (WString format) accessing elements. Convert to STRUCT? ^{CODESYS Forge talk (Post)}
HI , Ill try the same with Energy prices. But no data I add the Query to the wsPost. Add $ because wstring use "as start end end. Here the link of the API info https://reversed.notion.site/Marktprijzen-API-89ce600a88ac4abe8c2ad89d3167a83e
Last updated: 2025-10-09

Post by reinier-geers on JSON (WString format) accessing elements. Convert to STRUCT? ^{CODESYS Forge talk (Post)}
HI , Ill try the same with Energy prices. But no data I add the Query to the wsPost. Add $ because wstring use "as start end end. Here the link of the API info https://reversed.notion.site/Marktprijzen-API-89ce600a88ac4abe8c2ad89d3167a83e
Last updated: 2025-10-09

Post by reinier-geers on Softmotion general ^{CODESYS Forge talk (Post)}
Hi, Im busy using softmotion. But its reading data , but no respons on the commands. Most examples has Softmotion General exis pool. How can get that?
Last updated: 2023-12-19

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