Post by durallymax on Help understanding analog in-/outputs ^{CODESYS Forge talk (Post)}
WAGO will use 0-32767 as the raw units. Note a value of 3 means over/under range. Map that IO however you please, then scale in your program using any of the available libraries or with your own simple y=mx+b scaling formula to get to the engineering units you desire. Inverse for the AO to get back to 0-32767.
Last updated: 2024-12-15

Post by conny-nm on Bosch BME 280 bzw 688 Sensor per I2C Bus steuern und Daten in Codesys verarbeiten ^{CODESYS Forge talk (Post)}
Hallo Markl, gibt von Stefan Dreyer auf Git Hub Biblioteken für BMP280 und BME280, laufen aber nur in 32Bit auf dem Raspberry. BME680 kann man mit Node Red auslesen und mit mqtt zu Codesys übertragen.
Last updated: 2025-01-07

Post by trusty-squire on Strange problem with the ‘MC_SetPosition’ function ^{CODESYS Forge talk (Post)}
Just a stab in the dark, but you might want to check the Dynamic Limits (accel, decel, velocity, jerk) in the Codesys SoftMotion device configuration, as well as checking similar limits on your servo drive? Are you seeing any errors, or does the MC_SetPosition FB get marked as complete?
Last updated: 2025-01-09

Post by ekristoffe on Modbus UDP ^{CODESYS Forge talk (Post)}
UDP has no packet ordering mechanism, and Modbus protocol has no order checking mechanism nor session establishment. I'm sorry but this is false, Modbus IP based have the Transaction Identifier. Transaction Identifier - It is used for transaction pairing, the MODBUS server copies in the response the transaction identifier of the request. Modbus UDP make more sense than Modbus TCP in a local environment.
Last updated: 2025-01-14

Post by s1ack on Wago PFC200 Ethernet / IoDrvEthernet Issue? ^{CODESYS Forge talk (Post)}
I changed the interfaces to br0 & br1 as they are designated on the Wago PFC200. That issue is resoved. However, on site I have very high system cpu usage, system as in Linux. Presently it is not known why - my bench system does not exhibit such high system usage. In the past this was due to IGMP network traffic every 250uSec from synchronized inverters.
Last updated: 2025-01-22

Post by spiritcore on Server not adding PLC ^{CODESYS Forge talk (Post)}
I added new Gateway and I can see it connected. When I scan the server for PLC, it finds the PLC but when I click the Add To Server button, it shows "PLC was added." in the status. But I can't find the PLC in the list. I tried removing the gateway and re-configure everything again but it didn't solve. Any ideas?
Last updated: 2025-02-17

Post by jeffersonhui on SP20 Visualization Element Dynamic Colors ^{CODESYS Forge talk (Post)}
I am using Codesys SP20 patch 5 and in a visualization element, the "Color variables" section does not have a section to set up dynamic color values linked to variables. In a previous version (SP18), I get the option to add variables for Normal & Alarm state colors. Does anyone know how to get the dynamic color variables to work?
Last updated: 2025-02-19

Post by benemenn on Type mappings in Datasource ^{CODESYS Forge talk (Post)}
Hi! I am trying to achieve the same issue. Has there been a solution? I can create the mapping, and map the local variable, but somehow the object does not update. Furthermore, i have an issue where codesys doesn't let me set ReadWrite accesses to the variables in the "Type Mapping" place. The access will simply not be set. Has anyone ran int that issue?
Last updated: 2025-04-02

Post by manuknecht on FileDialog - OnDialogClosed not called anymore ^{CODESYS Forge talk (Post)}
I had similar issues with the OnDialogClosed not being called. I realized that this behaviour is resolved, when the according visualization object on which the input configuration is set is moved to the foreground. Somehow, the object has to be one of the lowest elements in the Element List (i.e. in the foreground) for it to work.
Last updated: 2025-04-25

Post by damian177 on Serialports in EdgeBox-RPI-200 ^{CODESYS Forge talk (Post)}
Hi, Two years ago i used EdgeBox-RPI-200 with Codesys and serial ports works fine. Now I try run the same application but only new runtime but serial ports doesnt works: I have two serial: /dev/ttyACM0 - RS485 /dev/ttyACM1 - RS232 and below configuration in my sudo nano /etc/CODESYSControl_User.cfg: [SysCom] Linux.Devicefile=/dev/ttyACM But it doesnt work. what can i do ?
Last updated: 2025-05-17

Post by naduley on Multiple Branches ^{CODESYS Forge talk (Post)}
I am trying to create multiple branches in my project and I keep getting gaps in the ladder logic "wiring". I'm not sure if this is a graphical error or something else but every thing I've tried to do to correct it does not work. Has anyone else run into this or know how to correct it?
Last updated: 2025-06-04

Post by zoppp on Visu Frame-configuration___text will not work ^{CODESYS Forge talk (Post)}
Yup, I've been having the exact same issue. A workaround that was working until Visu 4.8.0.0 was using TextList as the type in the frame configuration and then wrapping the text in quotes when configuring it. Im not sure if it will work with variables and I know it does not work if the type is text.
Last updated: 2025-06-17

Post by sym121 on Ghostwriter gesucht für Codesys Projekt in Funktionsbausteinsprache (mit Vergütung/Bezahlung!)? ^{CODESYS Forge talk (Post)}
Hallo zusammen, ich suche eine zuverlässige Person mit fundierten Kenntnissen in CODESYS (FUP) bei einem Automatisierungsprojekt im Rahmen meines Studiums. Ich schreibe aktuell meine Bachelorarbeit und habe kaum Zeit mich für dieses Projekt eines noch nicht abgeschlossenen Modul zu kümmern. Suche daher einen Ghostwriter bzw. Programmierer der mir mein Projekt gegen faire Bezahlung erstellt. Bei Interesse gerne melden.
Last updated: 2025-07-27

Post by sym121 on Ghostwriter gesucht für Codesys Projekt in Funktionsbausteinsprache (mit Vergütung/Bezahlung!)? ^{CODESYS Forge talk (Post)}
Hallo zusammen, ich suche eine zuverlässige Person mit fundierten Kenntnissen in CODESYS (FUP) bei einem Automatisierungsprojekt im Rahmen meines Studiums. Ich schreibe aktuell meine Bachelorarbeit und habe kaum Zeit mich für dieses Projekt eines noch nicht abgeschlossenen Modul zu kümmern. Suche daher einen Ghostwriter bzw. Programmierer der mir mein Projekt gegen faire Bezahlung erstellt. Bei Interesse gerne melden.
Last updated: 2025-07-27

Post by akrawczyk on Dynamically enabling/disabling Modbus slave devices in runtime (performance issue with timeouts) ^{CODESYS Forge talk (Post)}
Hi everyone, I'm working on a CODESYS-based project running on a Weintek cMT2078X HMI with a built-in CODESYS runtime. The system communicates with multiple Modbus RTU slave devices, arranged in a cascade. The number of connected units can vary between 2 and 8, depending on the installation. Each slave has 17 Modbus channels, which are polled cyclically every 5 seconds. The issue is that when fewer devices are physically connected (e.g. only 3 out of 8), the Modbus master still attempts to communicate with all configured slaves. This leads to massive delays due to timeouts (currently 200ms per channel). For one disconnected device, that’s: 17 × 200ms = 3.4 seconds of delay per polling cycle, and this quickly multiplies with each additional missing slave. This behavior significantly degrades the system's performance and responsiveness. We attempted a workaround where we tried to trigger polling based on a variable in the PLC program, but this caused instability and even led to hardware hangs/freezes on the cMT2078X – likely due to clashes in how the Modbus polling engine and program logic interact at runtime. My main questions are: Is there a way in CODESYS to dynamically enable/disable Modbus slave devices at runtime, using a BOOL or INT variable (e.g. indicating number of active slaves)? Can devices or channels be conditionally polled or temporarily disabled without removing them from the device tree? Are there any best practices or examples for handling variable numbers of Modbus slaves in scalable systems like this? Would splitting communication across tasks or interfaces help reduce the impact of timeouts? Any advice, documentation references, or architectural suggestions would be extremely helpful. I'm looking for a robust way to dynamically scale slave polling without degrading system stability or performance. Thanks in advance!
Last updated: 2025-08-11

Post by mqi2r on Newly created texlists wont appear in the selection dropdown ^{CODESYS Forge talk (Post)}
For anyone with this issue, you may need to: Open the text list properties (right-click the text list once you create it). Select the Text List tab. Change the Download by option to Visualization. I was fighting this for so long. Once you do that, you should find your text list appears in the drop down when editing a visualisation.
Last updated: 2025-08-19

Post by wagokurt on TargetVisu option missing in IDE ^{CODESYS Forge talk (Post)}
I have installed both the Codesys Control for Linux SL 4.16.0.0 and Target Visu for Linux 4.16.0.0 packages in Codesys 3.5 SP21 Patch2. When I try to add a target visu, it is missing. I have spent hours on this and tried different machines, all behave the same way. Is this a bug?
Last updated: 2025-08-21

Post by nilanjan on I want to show the current recipe name in the visualization screen ^{CODESYS Forge talk (Post)}
I am having some trouble showing the current recipe name in visualization i am not using the RecipeManCommands i am using the inbuild visualization feature of Saving and Loading recipes. I need it so the user would have a track on which recipe is being used currently.
Last updated: 2025-08-24

Post by stevens on No option to create "Parameter List" in library ^{CODESYS Forge talk (Post)}
I am struggling with this issue right now (again). I have nested structures with configurable array sizes. In the past I ever used parameter list. Very easy way! As of now I cannot find any solution. Ridiculous that they deprecated it without an alternative solution.
Last updated: 2025-08-26

Post by eksheep on Unit Tests and C007: Unknown Type ^{CODESYS Forge talk (Post)}
Hello, I am attempting to implement unit tests for my POUs. When building and running the unit tests I receive error C007: Unknown Type for all types defined in the library, Standard, 3.5.18.0. Which is included in the POU Library Manager. Any input would be appreciated. TIA.
Last updated: 2025-08-27

Post by jcarter on Webvisu Combined Authentication ^{CODESYS Forge talk (Post)}
Is there a way to have both a Public No Login Screens with Screens that do require login and File Transfer? My Idea is to have the default page be View Only with a Login Button in the Corner and then Once Logged In you can change settings and download files depending on your user group.
Last updated: 2025-08-28

Post by alexgooi on Execute a .py file with Codesys ^{CODESYS Forge talk (Post)}
Hello yann, In the past I have experimented with the execution of Linux commands using Codesys. Maybe this article helps: https://www.linkedin.com/pulse/run-linux-commands-from-codesys-jouke-aalvanger When you are able to execute Linux commands in Codesys, you can run the Python script.
Last updated: 2025-09-03

Post by onstage on Unable to add EL6751 to Control RTE V3 on W11 IoT LTSC using Eng. V3.5 SP21 ^{CODESYS Forge talk (Post)}
For reference, it was just me being unfamiliar with EtherCAT in CoDeSys. Anyone with knowledge who would have opened the ScanResult screenshot would have identified that the preceding EK1100 was the device missing in the library. Bottom line - Do something else for a while and then get back at it with fresh eyes!
Last updated: 2025-09-08

Post by gseidel on The default ramp type selection in SoftMotion V4.18.0.0 is Quadratic ^{CODESYS Forge talk (Post)}
Hi imdatatas, thanks for your feedback. This change was intentional, as the quadratic ramp type has many advantages over the trapez ramptype. Sorry to hear it causes problems in your situation. Can you please shortly explain the nature of the problems? Best regards, Georg
Last updated: 2025-09-08

Post by kio123 on SysFileOpen not working ^{CODESYS Forge talk (Post)}
I have exactly the same problem and tried entering “ForceIecFilePath=0” in the file “CODESYSControl.cfg” ([SysFile]). Unfortunately, this was unsuccessful. Can anyone help in the meantime, e.g., with some sample code or with the FAQ that TimvH refers to above (link no longer works)? Many thanks and best regards
Last updated: 2025-09-15

Sort by relevance or date