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Post by cpoi on Safety EL6900 com Error ^{CODESYS Forge} ^talk ^(Post)
Hello, I using the EL6900 module with EL 1904 and EL2904 on Ethercat, and I have a ComErr on the EL6900. The FSoE Adresse : EL6900 = 1 EL1904 = 11 EL2904 = 15 Any suggestion? Thanks a lot in advance.
Last updated: 2024-04-26

Post by radekkoza on How to use GPIO (and IOT2000 IO-Module) with CODESYS Control for IOT2000 SL ? ^{CODESYS Forge} ^talk ^(Post)
Hi I have this question I can't find anywhere what pins Di3 and Di4 have all the rest work . I have a 10 input iot2000 card
Last updated: 2024-05-05

Post by pasillalej on No gateway with the given settings could be found ^{CODESYS Forge} ^talk ^(Post)
Go to Online>Communication Parameters...>Gateway>TCP/IP> Click on "New..." and reestablish your connections with whatever IP address and set up information you have. Bypass whatever is necessary as you may have to redownload to the PLC.
Last updated: 2024-05-09

Post by kevinm on Data source and safety PLC ^{CODESYS Forge} ^talk ^(Post)
I am having the same trouble. However, if I change the Login Configuration settings to 'Type: Login using the credentials determined at runtime' then the Connection information continues as 'Connection state: Connecting' and 'Error information: OK'. There is no User Management on the source PLC.
Last updated: 2024-05-16

Post by davidbo on What is the prerequisites for a Raspberry Pi to work with SysSockSetIpAddressAndNetMask() ^{CODESYS Forge} ^talk ^(Post)
I have now and it works. I had the idea that it had something to do with codesyscontrol.cfg, but where can I find a description of all the things you can set in codesyscontrol.cfg and its syntax?
Last updated: 2025-11-12

Post by kenth1973 on MC_Phasing state explenation ^{CODESYS Forge} ^talk ^(Post)
Hi George. Thx for the info and recommendation - the robot is running production at customer. But - would you have any information about the states numbers and their different explenations?
Last updated: 2025-12-11

Post by mariusz997 on Visualisation - internal error ^{CODESYS Forge} ^talk ^(Post)
Hi - problem solved. I had 3 version of codesys on system and they didn't like each other. After uninstall all and install again only one version now everything is OK
Last updated: 2025-11-12

Post by tristan on Textfield display problem ^{CODESYS Forge} ^talk ^(Post)
Hello Tim, I am using CODESYS Visu V4.8.1.0. It works when I turn off the "Support client animation and overlay of native elements". But if I do that, dialog box moving and other options are also disabled so it is a bit problematic. Thank you for helping.
Last updated: 2025-11-27

Post by raghusingh77 on Temu Promo Code ACU934948 get $100 off + $5 extra bonus for new and existing customers ^{CODESYS Forge} ^talk ^(Post)
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Last updated: 2024-10-26

Post by eaglealex on Length of string and Array of bytes ^{CODESYS Forge} ^talk ^(Post)
Hello! I have tried read a file to the string variable. But I faced a problem - there is about 2800 bytes of information in file, but string have a limit 2393 bytes. I made two variables with same address (for automatic convertion) - string[3000] and array of bytes[1..3000]. And I noticed that array of bytes contains all information from file, but string shows only first 2393 bytes. So I have lost information. Is there really such a limitation? Or I have an error in my program and Codesys 2.3 have no limit for such kind of conversation between string and array of bytes? Thank you very much!
Last updated: 2025-04-01

Post by niloufar on Execution Order of Function Blocks ^{CODESYS Forge} ^talk ^(Post)
Hi, Our program incorporates various function blocks and programs written in different languages such as St and SFC. They implement numerous actions and methods using different languages from their function blocks. My question is whether the execution order of function blocks is associated with the programming languages used. I understand that cycle time can be configured in the task configuration, but I'm curious if there is a specific sequence order of execution for function blocks written in different languages. For example, all function blocks in (ST) are executed first, followed by the execution of (SFC). Specifically, when the function is written in (ST) and the action is implemented in (SFC). I modified all function blocks in the main PLC program and configured a task configuration for the main program.
Last updated: 2023-12-13

Post by yang123 on EtherCAT Can't reconnect to servo drive ^{CODESYS Forge} ^talk ^(Post)
I am using Ethercat Master 4.6.0.0 and have use the automatic restart slaves feature. But we found of after the Ethercat communication normal and slave drive power-off and power-on the slave can't reconnect sucess. The PLC Log show the drive was al status "6#34 : Invalid DC Timeout Error" and its was reconnection sucess first but seconced later the drive will show the "16#2C : Fatal Sync error" and then drive will can't reconnection. Other slave are reconnect sucess which was link after the can't reconnect's drive the drive was OMRON R88D-1SN
Last updated: 2024-01-23

Post by khaledkhalil on Import OPC UA model to Codesys ^{CODESYS Forge} ^talk ^(Post)
I have added a models in SiOME which a software to design nodes and add instances. and created a resultant xml file. I tried to import the xml file to Codesys through OPC UA information model Repository the problem i don't know how to view my objects which i have designed. and map it to my PLC to make viewable on my server UaExpert. I watched the tutorial video https://youtu.be/aJhzN3Uk-Do?feature=shared. But it only give you how to add the Information model, and my resultant model doesn't have information type. So how in Codesys i can view a model which i have designed in SiOME and mapped my instances (Objects, Variable or methods) with my Variables in PLC I saw people do it in Tia Portal or other Software, but i have no clue how to do it on CODESYS
Last updated: 2024-03-12

Post by dhumphries on How to determine code size ^{CODESYS Forge} ^talk ^(Post)
I'm trying to determine which Codesys Control license I need, the Control Standard S has all the features I think I'll need, but the code size is limited to 3mb, I created a simple program with only 1 line of ladder logic and a simple visualization with a button and an indicator. When I generate code I get some messages, one indicates that the total allocated memory size for code and data is 2.1mb. Is this metric the correct size of the code? I question the size because it exceeds the allowable code size for the Basic S and Basic M licenses and consumes 2/3 of the available memory for the Basic L or Standard S license. What tool can I use to estimate the size of code as it relates to the runtime license limit?
Last updated: 2024-04-05

Post by salvadegianluca on SysPlcCtrl23 and C0338: The library 'cmperrors interfaces, 3.5.5.0 (system)' is supported just in 32 bit applications ^{CODESYS Forge} ^talk ^(Post)
Good afternoon to everyone; I'm stuck with this error and I don't know how to get out from it... I tried several time googling for alternative systems to control the PLC applications and resets but without success. I would like to realize the possibility to reset the CPU and to start/stop the applications as it was possible with the SysPlcCtrl23, but this library is no longer supported in 64 bit systems and it seems due to the cmperrors interfaces sub library that was included in the above said one. Someone found a work around for this issue?
Last updated: 2024-06-14

Post by clarenced on Multiple applications on one device sharing variables. ^{CODESYS Forge} ^talk ^(Post)
I am looking for an example of how to run 2 applications on 1 device that would have global variables shared between the two apps. In this case what I am trying to do is to have the main program logic run as one application and then have the visualization run as a second application. I find this https://us.store.codesys.com/media/n98_media_assets/files/000013-F/0/Multiple%20Applications_en.pdf, that talks about exactly what I want to do, but I can't find the download. The main reason I want to do this is for download speed. Right now it takes at least a minute to download our application to the PLC. A simple program downloads to the PLC in a very short time, but add visualization and the download time gets much longer. If I could download the program separately from the visualization I think that a simple program change would take very little time to download. I have tried create a GVL in the POUs view. This partly works in that both applications can see the GVL, but they each create their own instance of it and the variables are not shared between the two apps. There are ideas of using OPCUA but this raises problems with licensing and having to move any variable that needs to be shared into the Symbol Configuration. This adds a lot of management to keep this up to date. Any ideas would be appreciated thanks.
Last updated: 2025-02-20

Post by trusty-squire on SysProcessCreate2 on Linux runtime ^{CODESYS Forge} ^talk ^(Post)
Hi, I'm trying to launch a continuously running python script from Codesys and monitor the script status inside the Codesys runtime (running on a Linux enviroment). For now I'm testing with the below to emulate a continuously running Python script: #test.py i = 0 while True: i += 1 I'm able to successfully run the script using SysProcessExecuteCommand2 (I can see the Python process running in the task manager). However, this "freezes" the Codesys execution of the task - it sits on that command and will not continue until the Python script ends. I've proven this works by using the task monitor to kill the process, then Codesys continues on happily through the task. What I want to do is use SysProcessCreate2 to set up the Python script as a background task and monitor the process using SysProcessGetState. This always results in the error "ERR_OPERATION_DENIED". I know that I'm able to execute commands (as above), so my config should be correct. Is SysProcessCreate2 functional on a Linux environment? Is there something in the config file I'm missing? Here's my "working" code that uses SysProcessExecuteCommand2: VAR bTest : BOOL; sCommand : STRING := '/usr/bin/python3 /var/opt/codesys/PlcLogic/Application/test.py'; refCommand : REFERENCE TO STRING REF= sCommand; sOutput : STRING; refOutput : REFERENCE TO STRING REF= sOutput; result : RTS_IEC_RESULT; END_VAR IF bTest THEN SysProcessExecuteCommand2( pszCommand:= refCommand, pszStdOut:= refOutput, udiStdOutLen:= SIZEOF(sOutput), pResult:= ADR(result) ); bTest:= FALSE; END_IF And here's the code that always results in the ERR_OPERATION_DENIED error: VAR bTest : BOOL; sApp : STRING := '/usr/bin/python3'; sCommand : STRING := '/var/opt/codesys/PlcLogic/Application/test.py'; refApp : REFERENCE TO STRING REF= sApp; refCommand : REFERENCE TO STRING REF= sCommand; hResult : SysProcess.RTS_IEC_RESULT; hHandle : SysProcess.RTS_IEC_HANDLE; END_VAR IF bTest THEN hHandle := SysProcessCreate2( pszApplication:= refApp, pszCommandLine:= refCommand, ulFlags:=SYSPROCESS_CREATEFLAG_HIDDEN, pResult:= ADR(hResult) ); bTest:= FALSE; END_IF Here's the relevant section from the config file at /etc/codesyscontrol/CODESYSControl.cfg: [SysProcess] Command=AllowAll Appreciate any support or ideas. Thanks!
Last updated: 2025-03-16

Post by e13740e on Parameterized Property syntax for array element processing ^{CODESYS Forge} ^talk ^(Post)
Since parameterized (indexed) properties are not possible, I decided to use architectural approach "Indexing Property Adapter" to achieve the intended goal — avoiding code duplication for validated access to array elements. Essence: Create a Function Block Adapter (FB_PropertyAdapter) that encapsulates the logic for working with a single element of the target array (e.g., with one settings structure). Declare Properties inside the adapter block for accessing each individual field of the data structure. All validation logic is implemented within the Set accessors of these properties. Data Binding via VAR_IN_OUT: The adapter block receives a reference to a specific data element from the global array through its VAR_IN_OUT section, which ensures direct work with the original data without copying. Create an Array of Adapters: In the parent POU (e.g., FB_SettingsManager), an array of these adapter blocks is created — one for each element of the global array that needs to be managed. Initialize Bindings: In a FOR loop, each adapter instance from the array is given a reference to the corresponding data element. Result: This approach allows accessing the data via the index of the adapter array, and then through the property name, which simulates the behavior of an indexed property: MyAdapterArray[Index].MyProperty Thus, the validation and data access logic is written only once inside the adapter block and is then reused multiple times by creating instances of it in an array. This completely solves the problem of code duplication while providing a clean, scalable, and object-oriented architecture compatible with standard CODESYS features. Question closed.
Last updated: 2025-10-19

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