Post by gmau on RS232 Communication in CODESYS Control RTE V3
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Hello, I would like to implement RS232 communication into CODESYS Control RTE V3. I was writing the program testing it on CODESYS Control Win V3, where it worked fine. When I changed it to RTE, the communication was on, but I cannot send the data between PLC and scale - there is no or little response from scale - mostly one time receive and that is it. On Win V3 it was working fine. I read that I am supposed to configure CODESYSControl file for a proper communication using RTE, but even after that I can not get a stable and working communication. I am attaching my CODESYSControl and CODESYSControlUser data below, as well as I am sending the code from communication function. The communication should be through COM1 port of PC. CODESYS Version: CODESYS V3.5 SP21 + (64-bit) Runtime + Version: CODESYS Control RTE V3 Version 3.5.21.0 / CODESYS Gateway V3 - x64 Version 2.5.21.0 I would be much gratefull for any help. Sincerely,
Last updated: 2025-07-16
Post by timvh on Codesys virtual control redundancy
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I think it depends on what you consider as redundant. Is it allowed to plug the network cable in another device (server), move the USB key with license to the other device (server) and then start it up? Or should it automatically switch over within msec and take over the communication with the I/O flawlessly without noticing the switchover? We helped several customers setting up the CODESYS Redundancy functionality and the nice thing is that when you have it up and running, you can easily switchover from active to passive and when you download a new applicaiton, CODESYS handles the update of boot project on the passive controller automatically. Sure this will require an additional license and the license for redundancy, but if your installation is that critical it should be worth it. Please contact us (Extend Smart Coding) if you need any further information. We could help you setup the configuration and possibly provide the licenses for it (I noticed you are situated in the Netherlands).
Last updated: 2025-09-04
Post by nicetuxedo on Can not activate license on Raspberry pi
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Hello everyone, I'm hoping for some assistance with a license activation issue: a software crash has left my license in a strange state. Here is the sequence of events: I purchased a new license for the Raspberry PI from the official CODESYS web store. I opened the CODESYS and started the online activation process using the ticket number I received. During the activation, the CODESYS software threw an exception and crashed. I was not able to see if the activation completed. After restarting CODESYS, I attempted to run the activation process again with the same ticket number. The License Manager now gives me an error stating that the ticket has already been activated/used. I am now stuck because my installation is not licensed, but the activation server believes my ticket has been consumed. Has anyone encountered this before? Is there a way to have the ticket status reset?
Last updated: 2025-10-08
Post by william-blandon on RecipeManCommands.ReloadRecipes
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Hi Dave. Thanks for your answer. I still struggling with this. I have done everything according with the Codesys help even I have looked in detail at the example. I have double checked the recipe manager configuration and the use of all the methods. There are two methods that do not work as expected. I'm using Codesys 3.5.19.20 and recipe management 4.4.0.0 .CreateRecipe just create a recipe in the recipe definition but do not create the file. This have a walk around just giving a .ReadAndSaveRecipe afterwards. .ReloadRecipes do nothing but do not generate any error as well. After calling it I call the .GetRecipeCount and the number is always 0. When I create a new recipe (using the function block methods) then the number changes. Looks like this method is looking to the wrong directory finding nothing. I don't know if there is a missing configuration in the CODESYSControl.cfg file. I'm thinking in a walk around for this but I need to create a strings array with the recipe names as retentive and making all the management when deleting and adding recipes. Have had some one the same problem?
Last updated: 2024-05-23
Post by ellocco on XOR with four Inputs with OR-, NON- and AND-Operators
CODESYS Forge
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My topic is more of academic nature, I would like to implement an XOR-operation with four inputs on my own (without the predefined XOR-operator) in a function block diagram (FBD). I have two proposals. One works fine and the other one is just an idea, but I do not know, if it is possible to code it in CODESYS V3.5 SP18 in form of a FBD. Here the one that works: And here an idea, which I have not managed to code it as an FBD: Any ideas? Is the 2nd diagram a correct interpretation of the coding task? And is there a way to implement it in form of an FBD in CODESYS V3.5 SP18? Followup (08-Nov-2024): Also in the current version of CODESYS (V3.5SP20Patch3) I have not managed to connect the existing blocks. In the alternative SPS-IDE PLCnext Engineer it is possible.
Last updated: 2024-11-08
Post by jegerjon on Same program to more than one PLC
CODESYS Forge
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I guess you could archive the project, open the archive and go online. Is that suffiecient for your use case?
Last updated: 2023-08-25
Post by rossanoparis on How to configure CODESYSControl_User.cfg in order to use a specific network card for OPCUA Server
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Hello at all I'd like to know how to configure CODESYSControl_User.cfg in order to use a specific network card for OPCUA Server. In the past, I tried to ask in "Forge" about this topic, but I could find neither help nor document informations about it. Reading the file "codesyscontrol.log" I see these logs OPC UA Server Started: Hostname: NTLRPICTRL01, Port: 4840 URL: opc.tcp://NTLRPICTRL01:4840 Loopbackadapter activated. **All available networkadapters are used.** Multithreading activated. 3 workers used. My controller, which is a Linux PC, has got two network cards eth0 and eth1 I whant to use the card with name "eth0" as a server for OPCUA and keep the "eth1" free for other stuffs. Is it possible ? Best regards Rossano
Last updated: 2023-08-25
Post by eschwellinger on Problems connecting to Codesys 4.9.0.0 runtime on my Wago PFC200
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I've send out a workaround for this.. Best Regards Edwin
Last updated: 2023-08-26
Post by eschwellinger on CODESYS Automation Server Connector for 3.5 SP11
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https://store.codesys.com/en/codesys-automation-server-connector.html Programming System CODESYS Development System V3.5.15.0 or higher
Last updated: 2023-08-30
Post by janderson on Ethercat scan for devices not picking up EL7041 as a softmotion axis
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also my ethercat bus won't run.
Last updated: 2023-09-02
Post by jegerjon on VPN
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Hi, witch VPN provider for remote PLC Acess do you use/recomend? Preferedbly one where you can Grant certain users acess to specific controllers.
Last updated: 2023-09-06
Post by jegerjon on VPN
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Hi, witch VPN provider for remote PLC Acess do you use/recomend? Preferedbly one where you can Grant certain users acess to specific controllers.
Last updated: 2023-09-06
Post by jegerjon on VPN
CODESYS Forge
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Hi, witch VPN provider for remote PLC Acess do you use/recomend? Preferedbly one where you can Grant certain users acess to specific controllers.
Last updated: 2023-09-06
Post by eschwellinger on Project compiling error in Simulation mode
CODESYS Forge
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I fear you need to update if you need a solution for this.
Last updated: 2023-09-08
Post by aott33 on Webvisu NO load
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Should I be looking for anything in particular in the PLC Log? Attached is the xml file from the PLC logger.
Last updated: 2023-09-26
Post by eschwellinger on Official MQTT-Client: MAX_RECEIVE_BUFFER_SIZE_EXCEEDED
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we need plclog cat /tmp/codesyscontrol.log or cat /var/codesys/codesyscontrol.log depend on which runtime version you use for the error situation
Last updated: 2023-09-26
Post by derpaul on Official MQTT-Client: MAX_RECEIVE_BUFFER_SIZE_EXCEEDED
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As for the desciption the max Size is 256MB. But I'm sending only small JSON files nothing more...
Last updated: 2023-09-27
Post by aott33 on Webvisu NO load
CODESYS Forge
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I will update here for others once I find out the issue.
Last updated: 2023-10-09
Post by smartcoco on Visualization using methods and cyclic ST-calls
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I think what you want is a declaration period function for the page, but unfortunately CODESYS does not have it.
Last updated: 2023-10-17
Post by ronald-de-jonge on Codesys StructType in Device Description File
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We have the same issue when using CODESYS V3.5 SP18 Patch 2. Is there a solution for this issue?
Last updated: 2023-10-30
Post by imdatatas on Detecting if a client is connected to webvisu server
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Thank you @dgirard Your idea and above description helped me what i was looking for.
Last updated: 2023-11-08
Post by pflot59 on Migration von "CODESYS Control for PFC200 SL" zu WAGO FW26 "CODESYS V3.5.19.2"
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You can find a guide here : https://techdocs.wago.com/Software/eCOCKPIT_Migration/en-US/index.html
Last updated: 2023-11-21
Post by pflot59 on Migration von "CODESYS Control for PFC200 SL" zu WAGO FW26 "CODESYS V3.5.19.2"
CODESYS Forge
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You can find a guide here : https://techdocs.wago.com/Software/eCOCKPIT_Migration/en-US/index.html
Last updated: 2023-11-21
Post by climblinne on OPC UA Server custom NodeID
CODESYS Forge
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I think, I have the same issue. Do you find a solution for it?
Last updated: 2024-06-27
Post by wbj0t on connect IDE to plc that uses modem ppp
CODESYS Forge
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Thanks for reply. I did all understand, thanks you :)
Last updated: 2024-07-01
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