Post by i-campbell on Publish a JSON payload via MQTT Publish (using IIot Libraries) ^{CODESYS Forge talk (Post)}
your are sending as a WSTRING which is UTF16, but your receiver is interpriting as UTF8. Change the receiver to use UTF16, or better change your sender to convert to UTF8. You publish the entire storage space (SIZEOF) Instead of the number of bytes of actual text (StrLenA) try using utf8JsonData : STRING(2000); JSON.Stu.ConvertUTF16toUTF8( ADR(wsJsonData), ADR(utf8JsonData), SIZEOF(utf8JsonData) ); and change your publish to mqttPublish( mqttClient:=mqttClient, pbPayload:=ADR(utf8JsonData), udiPayloadSize:=To_UDINT(JSON.Stu.StrLenA(ADR(utr8JsonData))), wsTopicName:=topic, mQTTPublishProperties:=mqttPublishProperties );
Last updated: 2024-04-10

Post by alez on CANOpen SDO to write VISIBLE STRING ^{CODESYS Forge talk (Post)}
Hello, I am experiencing difficulties in configuring a CANopen device by sending SDOs. In particular I am attempting to write an Object Dictionary that has VISIBLE STRING as the Data Type. When I try to configure the sending of an SDO from Codesys to configure this parameter I am not allowed to enter a string value. In my particular case I am trying to change the Manufacturer Device Name ( Index 0x1008 ). Could it be that Codesys doesn't manage these types of variables?
Last updated: 2024-04-29

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 corriibme on Setting array values with JSON Utilities SL ^{CODESYS Forge talk (Post)}
I have been trying to set an array value to a JSON structure of this form: {"key": [1,2,3,4]} While I have been able to create the key and set its value to an empty array, I've not had any luck in putting any value in that array. objindex:= fb_JBuilder.SetKeyWithArray("Key6", diParentIndex := diRootIndex); objindex2:= fb_JBuilder.SetValue(value:= iValue2, diParentIndex:= objindex); iValue2: ARRAY[0..3] OF INT:= [1,2,3,4]; The two lines of code above produce {"key6": []} . The second line essentially has no effect.
Last updated: 2024-05-12

Post by tomas111 on OPC UA Client API ^{CODESYS Forge talk (Post)}
I ran into a problem. Uploaded an example (https://content.helpme-codesys.com/en/CODESYS%20Examples/_ex_uacapi_example.html) After launch. on the emulator. I see that I am having problems: - UaExpert does not connect. There are many servers but no connection. - I can’t transfer the certificate from quarantine to trusted ones. There is some problem with creating the certificate. CS 19.2. If anyone has had similar problems, please give me advice. Thank you.
Last updated: 2024-05-20

Post by shebi87 on Program from one PLC to other WAGO 750-8204 ^{CODESYS Forge talk (Post)}
Hello Everyone, 750-8204 was installed on a machine and it becomes faulty. We have arrange a new PLC from local market we don't have PLC program but thanks to our other machine which has the same PLC running I want to upload the program from that running PLC and download it to new PLC can anyone tell me the procedure please?
Last updated: 2024-05-21

Post by tba123 on Script engine, git checkout, Project Environment ^{CODESYS Forge talk (Post)}
Hi, I clone a git repository with VersionUpdateFlags.SilentMode, works fine But now I want to checkout a specific commit (with branch_copy command). When using the branch_copy command there is no VersionUpdateFlags and I get this annoying "Project Environment" prompt, blocking further execution of my script without user input. I already tried something like system.prompt_answers[???] = PromptResult.Cancel but I don´t know the string I need here.. The goal is to have a script that clones a repository and compiles every tag + create compiled libraries.
Last updated: 2024-06-10

Post by mozed on Bug Device login ^{CODESYS Forge talk (Post)}
Good morning, The problem I encounter is very disturbing, when I try to connect to my project, it asks me to put in my username and password, which I do. However, I cannot connect and it restarts. the window to rewrite my identifiers. However it is the correct identifier and password I do not understand why. When I try to put false identifiers there strangely it tells me that these are not valid identifiers. There is something what can I do? Sincerely
Last updated: 2024-06-11

Post by arcadium on TargetVisu element stacking on top of each other ^{CODESYS Forge talk (Post)}
Hello, I'm new here so if I do something wrong please bare with me. I am using raspberry pi touchscreen made by comfile (CPi-C070WR4C). I also have a window 11 pc where I would like to have a second visualisation, but when I run a TargetVisu with it, all elements of the visualisation end up in the top left corner stacked on top of each other. I have same results running targetVisu on my laptop. Maybe someone had same issues and know the solution? Simas
Last updated: 2024-06-17

Post by shaunvdm on OSCAT Scale_r function not working in LD 4.60 works in LAD2 on 3.5.21sp3 ^{CODESYS Forge talk (Post)}
Hi We have picked up an issue OSCAT_BASIC.Scale_r function call not working in the old lad and FBD version 4.60. Gives no output on the function call. When we convert this to LAD2 it works. As can be see by the two screenshot in normal LD not working in LAD2 it works. Please confirm if this is an issue with Oscat or with LAD in 3.5.21sp3, is there an workaround. Regards Shaun
Last updated: 2025-10-23

Post by shaunvdm on OSCAT Scale_r function not working in LD 4.60 works in LAD2 on 3.5.21sp3 ^{CODESYS Forge talk (Post)}
Hi We have picked up an issue OSCAT_BASIC.Scale_r function call not working in the old lad and FBD version 4.60. Gives no output on the function call. When we convert this to LAD2 it works. As can be see by the two screenshot in normal LD not working in LAD2 it works. Please confirm if this is an issue with Oscat or with LAD in 3.5.21sp3, is there an workaround. Regards Shaun
Last updated: 2025-10-23

Post by kenth1973 on MC_Phasing state explenation ^{CODESYS Forge talk (Post)}
Hi Georg OK got it, thank you. I respect your (CODESYS) policies on that issue. Will try to update according to your recommondation if the customer experience same error in the future. Though - from within my coding heart it does bother me deeply, that I cannot get further understanging/knowledge on the iPhasingState, but I guees I will have to swollow that bitter pill and get on with it! hehe ;-)
Last updated: 2025-12-17

Post by ryusoup on 'keep last value' option in CODESYS EtherCAT ^{CODESYS Forge talk (Post)}
Hello, I’m using CODESYS EtherCAT Master on a Raspberry Pi controller with several remote I/O modules. I’m facing an issue where the input values from the remote I/Os drop to 0 when a connection error occurs. Is there a way to configure a “keep last value” behavior (i.e., hold the last valid input) instead of defaulting to 0 on communication loss? Best regards,
Last updated: 2025-11-18

Post by gland on Open project automatic with correct version ^{CODESYS Forge talk (Post)}
Goodmorning, The projects we have made (with several persons) are in differents versions, Codesys V3.5 sp18 patch4, V3.5 sp19 patch 2, V3,5 sp19 patch 5 etc V3.5 sp21 patch 3 etc.. Now when we're opening an project thats's not opend before on my pc and we're not sure in witch version it's made it's quite annoying. We don't want to update to the newest version. Is there a way that it's automatic opening the correct version? Is there a program/tool/easy way to do this? Thanks,
Last updated: 2026-01-27

Post by bschraud on runtime received SIGABRT ^{CODESYS Forge talk (Post)}
Hallo, seit der Umstellung meines Projektes auf die aktuelle Codesys Version mit aktuellen Bibliotheken und Aktualisierung der Runtimer Version bekomme ich im Zeitraum 15min bis 1h nach Neustart des Target Systems folgende Fehlermeldung: runtime received SIGABRT - system may be in an inconsistent state Der Fehler kommt auch nach dem Start des Systems ohne eine Benutzeraktion zuverlässig, aber in unterschiedlichen Zeiträumern. Hier sind die Logs und Daten, die ich dazu ermitteln konnte: $ tail -f /var/opt/codesys/codesyscontrol.log 2025-04-03T06:54:37.659Z, 0x0000100c, 1, 0, 0, Visu_PRG: Creating Client for Extern-ID: 594337835 2025-04-03T06:54:37.660Z, 0x0000100c, 1, 0, 0, Visu_PRG: Creating Client successful for Extern-ID: 594337835 Returned IEC-ID: 0 2025-04-03T07:01:38.135Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state * We recommend a reboot of the controller now! 2025-04-03T07:01:38.135Z, 0x00000111, 8, 260, 3, #### Exception: HANDLED EXCPT* <excpt>NonContinuable</excpt> in CH_COMM_CYCLE 2025-04-03T07:02:18.181Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state * We recommend a reboot of the controller now! 2025-04-03T07:02:18.181Z, 0x00000111, 8, 260, 3, #### Exception: HANDLED EXCPT* <excpt>NonContinuable</excpt> in CH_COMM_CYCLE $ vmstat 1 procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 1 0 0 271120 33976 342284 0 0 135 2 2387 4751 10 7 82 1 0 1 0 0 271024 33976 342380 0 0 0 0 10163 20427 10 9 81 0 0 1 0 0 271056 33976 342380 0 0 0 0 8455 16869 9 5 86 0 0 0 0 0 271040 33976 342380 0 0 0 0 8674 17484 9 4 87 0 0 0 0 0 271072 33976 342380 0 0 0 0 10070 20350 7 7 87 0 0 1 0 0 271040 33976 342380 0 0 0 0 10354 20802 10 6 84 0 0 0 0 0 271072 33976 342380 0 0 0 0 8401 16923 8 6 86 0 0 $ vcgencmd measure_temp temp=56.9'C $ uname -a Linux PAC4 5.10.103-v7+ #1529 SMP Tue Mar 8 12:21:37 GMT 2022 armv7l GNU/Linux CODESYS V3.5 SP21 Runtime: Codesys control for Raspberry Pi MC SL V 4.13.0.0 Hinweise auf ein instabiles OS oder instabile Netzwerkverbindungen konnte ich keine finden. In dmesg und im syslog gibt es keine Auffälligkeiten. Die anderen Posts zu diesem Thema wurden nicht beantwortet. Hat jemand einen Tip, wie man an das Problem herangehen kann? Vielen Dank
Last updated: 2025-04-03

Post by vincentger on Raspberry Pi Control SL MC - Restoring License not working anymore! ^{CODESYS Forge talk (Post)}
Running into the same problem restoring a Runtime 4.4.0.0 device on a now 4.8.0.0 device.
Last updated: 2023-08-21

Post by eschwellinger on Raspberry Pi Control SL MC - Restoring License not working anymore! ^{CODESYS Forge talk (Post)}
you need to use 'my question ' in the CODESYS store
Last updated: 2023-08-24

Post by smercante on Unable to Import PLC Open XML from Easy Remote IO ^{CODESYS Forge talk (Post)}
Hello dear. I have the same problem. Could you solve it? Do you use GLV variables?
Last updated: 2023-08-24

Post by gregor on PFC 200 - codesys V3.5 ^{CODESYS Forge talk (Post)}
As far as I know, only if someone downloaded sourcecode to the PLC.
Last updated: 2023-08-25

Post by totorovic on CSVReaderInit returns error : INVALID_HANDLE ^{CODESYS Forge talk (Post)}
Hello, Can we please have some details about the error : INVALID_HANDLE? So we can try to avoid it.
Last updated: 2023-08-28

Post by marekxc on Trun off webvisu ^{CODESYS Forge talk (Post)}
Click Visualisation with the left mouse button. Next click right mosue button Select Properties In window select TAB Build and Select "Exclude from Build"
Last updated: 2023-09-01

Post by eschwellinger on Official MQTT-Client: MAX_RECEIVE_BUFFER_SIZE_EXCEEDED ^{CODESYS Forge talk (Post)}
check the plclogger and use top or htop in by ssh ( which runtime version is this?)
Last updated: 2023-09-23

Post by derpaul on Official MQTT-Client: MAX_RECEIVE_BUFFER_SIZE_EXCEEDED ^{CODESYS Forge talk (Post)}
How do I found out, which process is taking the load?
Last updated: 2023-09-27

Post by derpaul on Official MQTT-Client: MAX_RECEIVE_BUFFER_SIZE_EXCEEDED ^{CODESYS Forge talk (Post)}
Okay, i've extendet ist from 6000 to 20000, but the error is still present :-(
Last updated: 2023-09-28

Post by armall on USB <-> CAN, CANfox, Component CmpCANFoxDrv NOT loaded ^{CODESYS Forge talk (Post)}
Hi, I'm at the same stage as you. Wondering did you every get a solution?
Last updated: 2023-10-13

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