Post by eschwellinger on Cant login to Rpi4 but can see it in codesys communications settings. ^{CODESYS Forge talk (Post)}
your device in the device tree is Pi 64 online you have Pi MC (32bit) - update device in the device tree to Pi MC then it will work.
Last updated: 2024-06-23

Post by s1mon on Two OneWireMaster on one Raspberry PI 5 ^{CODESYS Forge talk (Post)}
yes sure. Thx for your support! This is the Codesys project stripped down only to my EtherCat and OneWire Configuration. The Project now contains only one OneWire Master on GPIO4.
Last updated: 2025-10-20

Post by jtebokkel on VAR_GENERIC unknown token ^{CODESYS Forge talk (Post)}
The help says VAR_GENERIC exists, but trying to use it in 3.5.21.30 results in a unknown token error. https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_vartypes_var_generic_constant.html Did this feature get removed or is there something else that needs to be done to enable using generic function blocks?
Last updated: 2025-10-21

Post by alimans on Unrecoverable SoftMotion state after switch to PreOp ^{CODESYS Forge talk (Post)}
Hi Kim, Hi eschwellinger, how you could solve the problem? I am using Codesys V3.5.19.60 and I still have the same problem. It will work only after a warm/cold restart. Thank you in advance for your kind help.
Last updated: 2025-10-22

Post by vtec35 on search runtime 4.9.0.0 for pi 3 ^{CODESYS Forge talk (Post)}
i have update the package 4.13 n the computer and install all update for all package, now impossible to start codesys... when i start to open any project i have a message invalid project...
Last updated: 2025-10-26

Post by jeroenaero on Difference between using OPCUA symbol configuration and OPCUA Server object ^{CODESYS Forge talk (Post)}
Hi, What is exactly the difference between using symbol configuration as OPCUA server or using the Codesys object OPCUA server? What are the advantages and disadvantages of using symbol configuration and OPCUA server object. Please let me know
Last updated: 2025-10-30

Post by eschwellinger on EtherCAT status errors ^{CODESYS Forge talk (Post)}
Setting IRQ priorities using shell commands irq-list and irq-set-prio for the network adapter which is used for Ethercat. This is here: https://content.helpme-codesys.com/en/CODESYS%20Control/_rtsl_performance_optimization_linux.html
Last updated: 2025-11-25

Post by micik on Error, visualisation property handling, VISU_USEPROPERTYINFO ^{CODESYS Forge talk (Post)}
@davidking, can you be more specific about where exactly "Compiler Defines" is located. I'm using Codesys v3.5 SP21 Patch2 and cannot find this Compiler Defines option. In the menu Project -> Project Settings there are Compiler options and Compiler warnings, but that is not it.
Last updated: 2025-11-26

Post by durallymax on How to use MQTT in CODESYS Control Win V3 ^{CODESYS Forge talk (Post)}
With the IIoT library/license or the one provided by the hardware OEM. Several examples online of how to use the MQTT Client SL library.
Last updated: 2025-12-12

Post by kenth1973 on MC_Phasing state explenation ^{CODESYS Forge talk (Post)}
Hi George - ok thanks - but who created this FB in the first place? Could you lead me to the creator company? Is CODESYS not the old S3 that created this FB? :-)
Last updated: 2025-12-17

Post by aniket-b on Scara3 kinematic robot error ^{CODESYS Forge talk (Post)}
It is Moons PLC which uses Codesys IDE. https://www.moonsindustries.com/series/mca6-medium-motion-plc-a150102 This has Realtime capability using Linux with preempt
Last updated: 2025-12-29

Post by baott569 on CODESYS OPC UA Security: HMI Client Not Receiving Server Certificate ^{CODESYS Forge talk (Post)}
Hello everyone, I am currently using OPC UA in CODESYS with the security mode BASIC256SHA256 – Signed and Encrypted. The OPC UA Server is running on an RTE CX device, and the HMI is running on another computer. I have reviewed many CODESYS documents and successfully established communication when the security mode is set to None with Anonymous login. However, when security is enabled, the server does not provide its certificate for the CODESYS HMI client to trust. Interestingly, the client can send its certificate to the server, and UAExpert works normally, but the CODESYS HMI client does not receive the server certificate. Can anyone help clarify what I might be missing? I have been stuck on this issue for three days. If I missed or misconfigured any step, please let me know. I believe I am stuck at step 15 in the following CODESYS guide: Encrypting the Communication of a Data Source OPC UA Client https://content.helpme-codesys.com/en/CODESYS%20Communication/_cds_encrypt_communication_data_sources_opc_ua_client.html Thank you very much.
Last updated: 2026-01-06

Post by timvh on High resolution displays with 150% scaling causes CodeSys IDE to be blurry ^{CODESYS Forge talk (Post)}
Instead of using scaling of 150%, can't you adjust your diplay resolution (Windows+i keys, then go to System > Display settings)?
Last updated: 2026-01-07

Post by gilad on CODESYS SoftMotion Generic DSP402 on WAGO PFC200 + Festo CMMT-AS: MC_Power stays Busy, Controlword remains 0 ^{CODESYS Forge talk (Post)}
Thank you very much, What FESTO provides should work even if I use another PLC (WAGO) that is not from FESTO?
Last updated: 2026-06-30

Post by gseidel on CODESYS SoftMotion Generic DSP402 on WAGO PFC200 + Festo CMMT-AS: MC_Power stays Busy, Controlword remains 0 ^{CODESYS Forge talk (Post)}
Hi gilad, I cannot tell for sure. But I think it should work on any PLC that is capable of doing motion control. Best regards, Georg
Last updated: 2026-07-01

Post by eschwellinger on CmpCharDevice blocks gpiochip access on Raspberry Pi 5 since update from SP18 to SP21 ^{CODESYS Forge talk (Post)}
this is probably: https://content.helpme-codesys.com/en/CODESYS%20Control/_rtsl_linux_dedicated_user.html ..switch back from rootless mode due GPIO will not work.
Last updated: 2026-07-19

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 emmieturner on Which Lib to use, connect to a socket with URL instead of IP address ^{CODESYS Forge talk (Post)}
hi, maybe Net Base Services https://forge.codesys.com/prj/codesys-example/nbs/home/Home/ https://geometrydashlite.online Thank for sharing
Last updated: 2025-11-16

Post by davidbo on *EXCEPTION* [ProsessorLoadWatchdog] codesys 3.5.11.40 ^{CODESYS Forge talk (Post)}
Under Application->"Task Configuration" you can find your task double click on that and you will see a fane to the right. You find the watchdog enable switch it off or increase the time
Last updated: 2025-11-17

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 somlioy on Non-formal invocation of function blocks in CODESYS ^{CODESYS Forge talk (Post)}
No that is not possible for function blocks, although it is possible to that with methods and functions as you see in your second pic.
Last updated: 2025-12-05

Post by danamocca on SM3_CNC Sentence modifier ^{CODESYS Forge talk (Post)}
Hi! Does anyone have an example of ReadNCFile2 with Sentence Modifier? Current examples on CODESYS help page are outdated and have a lot of errors, like "SMC_CNC_LibParams.MAX_SUBPROGRAM_NESTING_DEPTH" calls, which are not present in current version of SMC3_CNC library.
Last updated: 2025-12-25

Post by karsonsv on CODESYS HMI and 2 monitors ^{CODESYS Forge talk (Post)}
I need open visualization on two monitors (every monitor 19201080). In TargetVisu i configure Scaling Options as Fixed 38401080. But visualization open onli main monitor and onli half.
Last updated: 2026-01-02

Post by baott569 on CODESYS OPC UA Security: HMI Client Not Receiving Server Certificate ^{CODESYS Forge talk (Post)}
Hello everyone, I am currently using OPC UA in CODESYS with the security mode BASIC256SHA256 – Signed and Encrypted. The OPC UA Server is running on an RTE CX device, and the HMI is running on another computer. I have reviewed many CODESYS documents and successfully established communication when the security mode is set to None with Anonymous login. However, when security is enabled, the server does not provide its certificate for the CODESYS HMI client to trust. Interestingly, the client can send its certificate to the server, and UAExpert works normally, but the CODESYS HMI client does not receive the server certificate. Can anyone help clarify what I might be missing? I have been stuck on this issue for three days. If I missed or misconfigured any step, please let me know. I believe I am stuck at step 15 in the following CODESYS guide: Encrypting the Communication of a Data Source OPC UA Client https://content.helpme-codesys.com/en/CODESYS%20Communication/_cds_encrypt_communication_data_sources_opc_ua_client.html Thank you very much.
Last updated: 2026-01-06

Post by mtorell on Safe Editor in codesys v3.5sp21p30 ^{CODESYS Forge talk (Post)}
How do I negate an output signal from an OR gate. I have tried right click to no avail and I cannot find an propriate NEGATE box? I want to save the output from the block to an inverted variable.
Last updated: 2026-03-12

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