Post by installwhat on raspistepper error after install ^{CODESYS Forge talk (Post)}
I've had issues getting the raspistepper installed, all due to errors upon installation. The closest I get is the pictured error. The functions are in the sm3_shared library. I can add this library but that leaves 2 issues. I don't actually know, and I really want to understand this, why the required dependencies haven't been installed correctly. If I add the library it's only available with through the namespace. What can I do to both understand and resolve this? Thanks edit codesys 64 3.5.20.0 - same error on other versions too sm3 raspi stepper 0.0.0.5
Last updated: 2024-04-20

Post by damian177 on Codesys V3.5 + Pixtend v1.3 + RaspberryPi ^{CODESYS Forge talk (Post)}
Hi, I use Pixtend v1.3 with my RaspberryPi with Codesys V3.5 SP15 Patch1. Actually in my project I used two packages: - CODESYS Contro for Raspberry PI 3.5.15.10 - PiXtend for CODESYS 1.3.8.0 Now I would like to extend my project about the IIot Libraries SL package, I installed them. Next I added SMS_Service_SL 1.0.0.8 version library and I have problem with compile my project because I get error: [ERROR] PiXtend_DemoProject_q: Library Manager [Device: PLC Logic: Application]: Could not open library '#CAADTUtil'. (Reason: The placeholder library 'CAADTUtil' could not be resolved.) Any have idea what can I do to properly add SMS library to my project?
Last updated: 2023-09-26

Post by akfarslan on The application does not exist on "device" ^{CODESYS Forge talk (Post)}
Dear All, I am using CODESYS 3.5.19 SP4 with a PLC device. When I try to download my program to the device, I get the error: "The application 'Application' does not exist on the device". Additionally, after restarting the device, the program does not run automatically. When I connect to the device using WinSCP, I can see that the application.app file is uploaded to the root directory, but the device does not automatically start the application. I tried using the Create Boot Application option, but it does not resolve the issue. Is there another configuration step I am missing? How can I fix this problem? Thank you, Best regards,
Last updated: 2024-12-17

Post by rer-code on Codesys 3.5.18.60 – Application Loss and Persistent Data Corruption ^{CODESYS Forge talk (Post)}
Hi, I’m currently managing over 50 PLCs running Codesys version 3.5.18.60. At seemingly random intervals, some of these devices experience a failure where: All persistent variables are lost. Attempting to log in results in the message: “The application does not exist on device. Do you want to create it and proceed with download?” The log shows: “Loading retain-data/bootproject failed.” From what I’ve gathered, this may be due to a corrupted persistent data file, but I’m not entirely sure how to confirm or resolve this issue. If anyone has encountered something similar or has suggestions for troubleshooting or preventing this, I would greatly appreciate your input. Best regards
Last updated: 2025-08-19

Post by dkugler on Color Change for Symbols not working ^{CODESYS Forge talk (Post)}
to modify and change the color of this icons from symbols lib I placed it in a visu. After download to the device, I uploaded the SVG files and saved it local. Now I was able to modify them with inkscape and import it to my own imagepool in the project :-)
Last updated: 2024-02-13

Post by alexgooi on Disable OPC-UA server ^{CODESYS Forge talk (Post)}
Dear Forum, I recently updated to the newest Codesys IDE (3.5 SP19 patch 5) The program wouldn't download cause of the amount of OPC-UA server tags (see picture) I'm not planning on using the OPC-UA server and therefore I unchecked the "Support OPC-UA features" checkbox in the symbol configuration. But this didn’t solve the issue of the OPC-UA server exceeding its license. How can I disable the OPC-UA server while still maintaining the symbol configuration. Thank you in advance Alex
Last updated: 2024-03-01

Post by fless on FB having single input but initialized with Array ^{CODESYS Forge talk (Post)}
Why will it retain the sum value from the last call? This is how PLC work. Usually variables only get initialized after a download or a reset (i.e. power loss). RETAIN variables are saved in a special kind of RAM and keep their value after a power loss. To initialize variables on every call of your FB use the VAR TEMP block. VAR_TEMP sum : INT; END_VAR
Last updated: 2024-05-07

Post by timvh on History of Alarms ^{CODESYS Forge talk (Post)}
It is most likely related to the existing alarm log files in the Control Win. Depending on how you start up the Control Win, you can find the files in: C:\Users\<user name="">\AppData\Roaming\CODESYS\CODESYSControlWinV3x64\<unique id="">\PlcLogic\alarms\ Or C:\Windows\System32\config\systemprofile\AppData\Roaming\CODESYS\CODESYSControlWinV3x64\<unique id="">\PlcLogic\alarms\</unique></unique></user> Delete the files in this folder, download your project again and start the application. PS, if you have an older version of CODESYS, the files are in: C:\ProgramData\CODESYS\CODESYSControlWinV3x64\<unique id="">\PlcLogic\alarms</unique>
Last updated: 2026-01-07

Post by kurtk on How to change keyboard layout on the virtual keyboard? ^{CODESYS Forge talk (Post)}
I have never seen a codesys keyboard with anything other than the german layout I'm hoping to find a US Keypad layout so as not to do all the surgery to co-erce a german Layout into English duty
Last updated: 2025-09-17

Post by kurtk on How to change keyboard layout on the virtual keyboard? ^{CODESYS Forge talk (Post)}
I have never seen a codesys keyboard with anything other than the german layout I'm hoping to find a US Keypad layout so as not to do all the surgery to co-erce a german Layout into English duty
Last updated: 2025-09-17

Post by meldawltly on Excel to Codesys 3.5 ^{CODESYS Forge talk (Post)}
Hello everyone, I have an excel file that i want to import into codesys3.5. Any idea how and what libraries can i use? To more clarify i have a table in codesys and i want to import my excel file into this table/ Thank you
Last updated: 2023-12-11

Post by meldawltly on Excel to Codesys 3.5 ^{CODESYS Forge talk (Post)}
Hello everyone, I have an excel file that i want to import into codesys3.5. Any idea how and what libraries can i use? To more clarify i have a table in codesys and i want to import my excel file into this table/ Thank you
Last updated: 2023-12-11

Post by ton on How to create a stopwatch? ^{CODESYS Forge talk (Post)}
Hi, i guess you want to make a hour counter. You need to store the measured value. Try to use a retain variable, but need a graceful shutdown, or save it your self. see https://forge.codesys.com/forge/talk/Runtime/thread/278e325579/ Succes.
Last updated: 2023-12-12

Post by open on How to create a stopwatch? ^{CODESYS Forge talk (Post)}
Thanks everyone for your input, I am using persistent variables to retain the timer value after machine shutdown, and main task to be as low as possible for the seconds TON to be accurate.
Last updated: 2023-12-14

Post by trycyclepower on How to transfer data from DINT to Union(16 Bools) which I need to use in Few FBs ^{CODESYS Forge talk (Post)}
I have DINT data from drive input and would like to use this data in Bools in bunch of the FBs. I have tried using Union but it is not working. Please suggest
Last updated: 2023-12-14

Post by manuknecht on Creating softmotion axis dynamically ^{CODESYS Forge talk (Post)}
Hi I was wondering the same thing. I managed to dynamically add an EtherCat Slave but I could not find out how to add a softmotion axis to it. Does anyone have an answer to this? Thanks in advance!
Last updated: 2024-02-21

Post by davidbo on I want to convert a WORD to a hex string like 15.432 to '3C48' ^{CODESYS Forge talk (Post)}
I try with BYTE_TO_HEXinASCII but I cant get it right. How do I convert a word value like 15432 to the HEX text string '3C48'
Last updated: 2024-04-19

Post by andreag0 on How to access to variable value through symbolic string name ^{CODESYS Forge talk (Post)}
Good to know. I am looking for some soluction to avoid PLC Handler and OPC-UA. Thank you.
Last updated: 2024-06-14

Post by marek71 on Ambiguous use of name - CO136 ^{CODESYS Forge talk (Post)}
My PLC is WAGO PFC200 Firmware Revision 26. target After updating WAGO_Devices_and_Libraries with newer Firmware 27, CODESYS wants to update all libraries to new versions. I will only add that I did not update the Firmware in the PLC. After compiling the program, I received the following errors: ------ Build started: Application: Device.Application ------- Typify code... [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): FbSerialInterface_internal: C0136: Ambiguous use of name 'RTS_IEC_HANDLE' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): FbSerialInterface_internal: C0136: Ambiguous use of name 'RTS_IEC_RESULT' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): Initialize [FbSerialInterface_internal]: C0032: Cannot convert type 'Unknown type: 'RTS_INVALID_HANDLE'' to type 'POINTER TO BYTE' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): Initialize [FbSerialInterface_internal]: C0136: Ambiguous use of name 'RTS_INVALID_HANDLE' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): Initialize [FbSerialInterface_internal]: C0046: Identifier 'RTS_INVALID_HANDLE' not defined [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): comextra_is_tx_empty: C0136: Ambiguous use of name 'RTS_IEC_HANDLE' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): comextra_get_line_state: C0136: Ambiguous use of name 'RTS_IEC_HANDLE' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): comextra_is_line_available: C0136: Ambiguous use of name 'RTS_IEC_HANDLE' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): COMSW_SET_MODE: C0136: Ambiguous use of name 'RTS_IEC_HANDLE' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): comextra_set_line_state: C0136: Ambiguous use of name 'RTS_IEC_HANDLE' Compile complete -- 10 errors, 0 warnings Build complete -- 10 errors, 0 warnings : No download possible The problem was caused by the WagoSysPlainMem(WAGO) library in the original version 1.5.3.0 after updating to 1.5.3.1. After returning to version 1.5.3.0, the problems disappeared. Probably the version number of this library is responsible for supporting the appropriate Firmware Revision. Can anyone confirm or deny my suspicions?
Last updated: 2024-07-06

Post by davidbo on All the things needed for anonymous login to OPC UA ^{CODESYS Forge talk (Post)}
When you have a deep object structure where not all values are not exposed to OPC UA, the top object will not have a V check mark but be filled fully out. In that case CODESYS do not always registrate changes to inner object. Solution set a V in the checkbox of the top object, build, download. Now you can browse, but all values in the top object will be selected, then you can deselect the ones you don't want, build, download and it works
Last updated: 2025-09-10

Post by beginner on ERROR: Demo mode for SoftMotion Basic expired. Feature stopped! ^{CODESYS Forge talk (Post)}
Hello. Please help me. Sometimes SoftMotion starts in demo mode and stops working after 2 hours. When I check with the license manager, it is recognized normally. I checked the log. After changing online or logging in with a download, the message "**** ERROR: Demo mode for SoftMotion Basic started. Will expire and stop!" was left. Even if you change online or log in with a download, this phenomenon may not occur. Please tell me how to solve this problem. Thank you in advance. Codesys Ver 3.5.20.0 SM3 Basic SoftMotion Ver 4.16.0.0 ※This text was translated using a translator.
Last updated: 2025-03-25

Post by i-campbell on Official MQTT-Client: MAX_RECEIVE_BUFFER_SIZE_EXCEEDED ^{CODESYS Forge talk (Post)}
256MB for the protocol yes, but the default value for this library parameter limits the library to 6kB per task scan.
Last updated: 2023-09-27

Post by viktorr on ShareMemory library documentation ^{CODESYS Forge talk (Post)}
Hello, I was wondering if there was further documentation on the SharedMemory library in CodeSys outside of the code example provided, or maybe a way to access the source code of the shared memory implementation. Thank you in advance for any advice. - Viktor
Last updated: 2024-07-03

Post by ggis on Library documentation up to date ^{CODESYS Forge talk (Post)}
Hi, where can I find the latest documentation for libraries 3.5.21.0 such as the CmpApp library. https://content.helpme-codesys.com/en/libs/CmpApp/Current/index.html Thank you, G
Last updated: 2025-04-24

Post by abuckie on Edit library in project ^{CODESYS Forge talk (Post)}
I am looking for the same thing, I am trying to edit a library I downloaded but I found that the functions are read only. The link above is broken, should I be looking somewhere like here? https://content.helpme-codesys.com/en/LibDevSummary/index.html
Last updated: 2025-05-22

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