Post by eschwellinger on Codesys Network driver install for Codesys Control RTE x64 ^{CODESYS Forge talk (Post)}
Yes, either adding in the CODESYSContro_User.cfg because the driver will no longer appear in the list or type the name from the documentation in the configuration and when the gray check mark appears, the driver is also installed. It is just not selectable anymore.
Last updated: 2025-03-21

Post by davidmic on Struct Literal ^{CODESYS Forge talk (Post)}
Hi all I want to pass a struct into a function without declaring the struct in a VAR/END_VAR. Is this possible? I think this would be called a struct literal It would look something like this someFB.write(structArgument := MyStruct#(a := 1, b := 1.2), otherArgument := TRUE); With this struct declaration TYPE MyStruct : STRUCT a : INT; b : REAL; END_STRUCT END_TYPE
Last updated: 2025-03-28

Post by imdatatas on The default ramp type selection in SoftMotion V4.18.0.0 is Quadratic ^{CODESYS Forge talk (Post)}
Dear @gseidel, Thank you for your clarification. I fully agree that the quadratic ramp type may have certain technical advantages. However, the main problem is backward compatibility and consistency across projects. In many automation projects, application developers rely on the fact that creating a new axis object will behave exactly the same way as in previous versions. With SoftMotion V4.18.0.0 and later, if an application developer adds an axis and overlooks the changed default, the motion function blocks behave differently than expected. In particular, since the Jerk value in SM3_Basic function blocks is ineffective in trapezoid ramp type, users are accustomed to leaving this parameter empty in their projects. In many existing projects, this variable has not even been assigned. When the default is changed to quadratic, the Jerk parameter suddenly becomes relevant, which can cause errors or unexpected behaviour in the field. From a user perspective, a default setting should always be the “safe” and “expected” option, while alternative options (like quadratic) can be selected manually if desired. Keeping the default as trapezoid ensures compatibility with existing projects and prevents unexpected issues, while still allowing users to benefit from quadratic ramps if they explicitly choose so. For these reasons, I kindly ask you to reconsider making trapezoid the default again. This would significantly reduce the risk of unexpected behaviour in future projects while still preserving the advantages of the quadratic ramp type for those who actively select it. Of course, the final decision is entirely at your discretion. Best Regards, imdatatas
Last updated: 2025-09-26

Post by dogulas on numeric text box control ^{CODESYS Forge talk (Post)}
Ok, this is how I made a numeric text field: use a Text Field properties -> Texts -> Text := %f (or %d or whatever you need) properties -> Text variables -> Text variable := (your numeric variable) properties -> Input configuration -> OnMouseDown -> Configure: Write Variable Input type := VisuDialogs.Numpad Use another variable (your numeric variable) Min val Max val etc. Please tell me there is an easier way to do this.
Last updated: 2025-10-02

Post by eschwellinger on usb2can in Codeysy 3.5 Can Gateway ^{CODESYS Forge talk (Post)}
Basis für all diese Linux Produkte mit CODESYS ist Socket CAN- sprich wenn dein Adapter in Linux als Socket CAN verfügbar ist sollte es funktionieren. also zunächste mal sowas ausprobieren: sudo ip link set can0 up type can bitrate 500000 sudo ip -s -d link show can0 cansend can0 00065132#21.04.00.00.3E.80.50.00
Last updated: 2024-01-17

Post by rmaas on Direct Pointers in IOMapping for EtherCAT with IoDrvEthercatLib.ETCSlave_Dia ^{CODESYS Forge talk (Post)}
Hi, Im not sure if this is what you mean, but i do succesfully use the IoDrvEthercatLib.ETCSlave.InputData and IoDrvEthercatLib.ETCSlave.OutputData to read from and write to beckhoff DI and DO cards. Very convenient as you can make an FB with an VAR_IN_OUT of type IoDrvEthercatLib.ETCSlave and only have to pass the slave reference... So i am not using .ETCSlave_Diag but .ETCSlave...
Last updated: 2024-02-13

Post by mp9876 on Attempting customizing menus fails in LADDER environment; due to free CODESYS version ? ^{CODESYS Forge talk (Post)}
That definitely does the job with the Ladder Logic Diagram type; fully equipped toolbox. Just starting with Codesys and was following programming steps which explains the choice of ladder I had picked. Thanks for the tip and have a good one! Cheers!
Last updated: 2024-03-14

Post by k4zz on Static Code Analysis ^{CODESYS Forge talk (Post)}
I've already experimented with two methods, but unfortunately, they only function with projects of type *.project. Consequently, when executing: system.commands["staticanalysis", "run"].execute() For the 2nd Option: You'll need to ensure that in the Static Analysis Settings, the option "Perform static analysis automatically after compilation" is checked. # get Project values myProject = projects.primary # Creates an active application app = myProject.active_application # build Application and run static code analysis app.generate_code()
Last updated: 2024-03-15

Post by eschwellinger on connect IDE to plc that uses modem ppp ^{CODESYS Forge talk (Post)}
Which plc type is it? Easy connection is to install a Gateway on remote side - this is available for Windows and Linux devices Then just add a new Gateway in CODESYS (with the IP Adress of the remote device) -> then scan the plc via this new added Gateway
Last updated: 2024-05-21

Post by dkugler on Webvisu client connection monitoring ^{CODESYS Forge talk (Post)}
you can give this code snippet a try. It's extracted and simplyfied from my code: Install VisuElemBase lib if not installed yet. Execute in visu task: VAR pClientData : ARRAY [-1..100] OF POINTER TO VisuElemBase.VisuStructClientData; END_VAR VisuElemBase.g_ClientManager.BeginIteration(); pClientData := VisuElemBase.g_ClientManager.GetNextClient(); WHILE pClientData <> 0 DO pClientData[pClientData^.GlobalData.GlobalClientID] := pClientData; END_WHILE You have to make shure every no longer updated pointers in the array have to be deleted and no longer used by your code! Usage of this pointer access at your own risk :-) Works with SP16. From SP17 and newer there will be warnigs etc. using this solution as I remember. It will be great, if Codesys publishes a example or give a hint how to accesse this client values with the VisuUtil lib or other future-proof way!
Last updated: 2024-09-09

Post by imdatatas on String length issue in GetRecipeNames method ^{CODESYS Forge talk (Post)}
Hi, If the string length in the GetRecipeNames method is lower than the default value, there will be a problem with the resulting Recipe file names. For example; When the method in the link is called, let's say the defined string length is 19. In this case, the string content is corrupted as in the image. strArr: ARRAY[0..9] OF STRING(19); https://content.helpme-codesys.com/de/libs/Recipe%20Management/Current/pou-RecipeManCommands/GetRecipeNames.html The same problem does not occur when the string definition is made in the default size. strArr: ARRAY[0..9] OF STRING; FYI Regards, Imdat
Last updated: 2025-02-19

Post by imdatatas on String length issue in GetRecipeNames method ^{CODESYS Forge talk (Post)}
Hi, If the string length in the GetRecipeNames method is lower than the default value, there will be a problem with the resulting Recipe file names. For example; When the method in the link is called, let's say the defined string length is 19. In this case, the string content is corrupted as in the image. strArr: ARRAY[0..9] OF STRING(19); https://content.helpme-codesys.com/de/libs/Recipe%20Management/Current/pou-RecipeManCommands/GetRecipeNames.html The same problem does not occur when the string definition is made in the default size. strArr: ARRAY[0..9] OF STRING; FYI Regards, Imdat
Last updated: 2025-02-19

Post by hclai on Maximum Array Index Issue ^{CODESYS Forge talk (Post)}
I was trying to use a table object in visualization. I want to dynamically show the valid rows in the table. However, it does not work when there is 1 row. i put the maximum array index to 1. it does not show the 1st row. when i change to 2, it show the second row only. my project with older visualization profile version is working perfectly fine. I did some test and realized that i must use a Row Selection variable to change from 0 to 1. With this change of Row selection, then the row 1 will show up.
Last updated: 2025-06-19

Post by enginear on auf Feldbusvariablen über Array zugreifen ^{CODESYS Forge talk (Post)}
Hallo, ich würde gerne die Variablen, die ich mit Ethernet/IP übertrage gerne in meinem Programm möglichst einfach ansprechen. Ist es möglich die übertragenen Variablen über ein Array direkt anzusprechen? Ich kann zwar die Variablen alle händisch benennen und dann im Programm auf diese zugreifen, aber wenn es viele Variablen sind und ich diese alle der Reihe nach in einer Schleife durchgehen möchte, so ist das schon viel Code der dafür notwendig ist. Bei mir werden die Variablen in Codesys unter dem Ordner (kann man aufklappen) 'Exclusive Owner' angezeigt. Da klingt es doch naheliegend, dass man direkt über den Ordnernamen die Variablen per Indexierung oder ähnliches ansprechen kann. vielen Dank und viele Grüße enginear
Last updated: 2024-02-23

Post by paro on Modbus Client Request Not Processed ^{CODESYS Forge talk (Post)}
Hi, works in my case if I increase the timeout! to_udint(t#100ms) -> 100 -> 100us.. FUNCTION_BLOCK MODBUS_master_example_ST VAR initDone : BOOL := FALSE; aIPAddress : ARRAY [0..3] OF BYTE := [127,0,0,1]; clientTcp: ModbusFB.ClientTcp; // buffer to read input registers aDataInputRegisters : ARRAY[0..9] OF UINT; // some client requests clientRequestReadInputRegisters: ModbusFB.ClientRequestReadInputRegisters; xExecute: BOOL; uistart: UINT := 100; udiTimeout1: UDINT; END_VAR IF NOT initDone THEN initDone := TRUE; // configure clientTcp clientTcp(aIPaddr:=aIPAddress, uiPort:=502, udiLogOptions := ModbusFB.LoggingOptions.All); // configure clientRequestReadInputRegisters clientRequestReadInputRegisters(rClient:=clientTcp, uiUnitId:=1, udiTimeout:=1000000); // 1sec END_IF // call the client FB's clientTcp(); clientRequestReadInputRegisters(rClient:=clientTcp,xExecute := xExecute AND NOT clientRequestReadInputRegisters.xBusy ,uiStartItem:=uistart, uiQuantity:=3, pData:=ADR(aDataInputRegisters[0]));
Last updated: 2024-05-30

Post by zer0g on Modbus Client Request Not Processed ^{CODESYS Forge talk (Post)}
I'm using the code bellow which is based on the Codesys example: FUNCTION_BLOCK MODBUS_master_example_ST VAR initDone : BOOL := FALSE; aIPAddress : ARRAY [0..3] OF BYTE := [127,0,0,1]; clientTcp: ModbusFB.ClientTcp; // buffer to read input registers aDataInputRegisters : ARRAY[0..9] OF UINT; // some client requests clientRequestReadInputRegisters: ModbusFB.ClientRequestReadInputRegisters; xExecute: BOOL; END_VAR IF NOT initDone THEN initDone := TRUE; // configure clientTcp clientTcp(aIPaddr:=aIPAddress, uiPort:=502, udiLogOptions := ModbusFB.LoggingOptions.All); // configure clientRequestReadInputRegisters clientRequestReadInputRegisters(rClient:=clientTcp, uiUnitId:=1, udiTimeout:=TO_UDINT(T#1000MS)); END_IF // call the client FB's clientTcp(); clientRequestReadInputRegisters(rClient:=clientTcp,xExecute := xExecute AND NOT clientRequestReadInputRegisters.xBusy ,uiStartItem:=2, uiQuantity:=3, pData:=ADR(aDataInputRegisters[0])); As you can see the clientTCP is called cyclically with the same result.
Last updated: 2024-05-30

Post by marek71 on Ambiguous use of name - CO136 ^{CODESYS Forge talk (Post)}
My PLC is WAGO PFC200 Firmware Revision 26. target After updating WAGO_Devices_and_Libraries with newer Firmware 27, CODESYS wants to update all libraries to new versions. I will only add that I did not update the Firmware in the PLC. After compiling the program, I received the following errors: ------ Build started: Application: Device.Application ------- Typify code... [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): FbSerialInterface_internal: C0136: Ambiguous use of name 'RTS_IEC_HANDLE' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): FbSerialInterface_internal: C0136: Ambiguous use of name 'RTS_IEC_RESULT' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): Initialize [FbSerialInterface_internal]: C0032: Cannot convert type 'Unknown type: 'RTS_INVALID_HANDLE'' to type 'POINTER TO BYTE' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): Initialize [FbSerialInterface_internal]: C0136: Ambiguous use of name 'RTS_INVALID_HANDLE' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): Initialize [FbSerialInterface_internal]: C0046: Identifier 'RTS_INVALID_HANDLE' not defined [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): comextra_is_tx_empty: C0136: Ambiguous use of name 'RTS_IEC_HANDLE' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): comextra_get_line_state: C0136: Ambiguous use of name 'RTS_IEC_HANDLE' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): comextra_is_line_available: C0136: Ambiguous use of name 'RTS_IEC_HANDLE' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): COMSW_SET_MODE: C0136: Ambiguous use of name 'RTS_IEC_HANDLE' [ERROR] wagosyscom_internal_pfc, 1.0.2.5 (wago): comextra_set_line_state: C0136: Ambiguous use of name 'RTS_IEC_HANDLE' Compile complete -- 10 errors, 0 warnings Build complete -- 10 errors, 0 warnings : No download possible The problem was caused by the WagoSysPlainMem(WAGO) library in the original version 1.5.3.0 after updating to 1.5.3.1. After returning to version 1.5.3.0, the problems disappeared. Probably the version number of this library is responsible for supporting the appropriate Firmware Revision. Can anyone confirm or deny my suspicions?
Last updated: 2024-07-06

Post by ewi04 on Recipe Manager - RecipeManCommands, load & write wrong values, Bug? ^{CODESYS Forge talk (Post)}
It seems that there is a limitation with the STRUCTs. Does anybody know, what’s okay to save (add to the recipe) and what’s not okay? Or is there another problem with my project? If I have only an array in the recipe definition everything works perfectly (see project).
Last updated: 2023-11-15

Post by schorge on Modbus RTU Slave ^{CODESYS Forge talk (Post)}
Ich würde gerne bestimmt Modbus RTU Slave Adressen auslesen, leider bekomme ich keine Werte vom Bus. Verbindung erfolgt über einen Raspberry mit Modbus RS485 Adapter, welcher erfolgreich verbunden ist. Mit einem IOBroker kann ich die Daten erfolgreich auslesen. In der Modbus_COM_Port => Modbus_Serial_Device habe ich Input Register 4000 %QW und Startadressen auf Input Register 3000, als Variable ein Array[0..2999] of Word, kann aber keine Werte auslesen.
Last updated: 2023-12-06

Post by timvh on Array to String ^{CODESYS Forge talk (Post)}
The new (UTF8) string library is faster and can handle large strings. https://content.helpme-codesys.com/en/CODESYS%20String%20Libraries/_strlib_start_page.html PS, in CODESYS, the maximum string length is not 255 characters. The String functions of the standard library are limited to strings of 255 characters. But you can use other (memory) functions to handle strings larger than 255 characters.
Last updated: 2024-07-22

Post by timvh on Array to String ^{CODESYS Forge talk (Post)}
The string_Util_Intern is not the library I referred to. With a CONCAT function (also with the string util library) a search is done for the NULL character. If you concatenate 20000 characters to one string, then the longer the string, the longer it takes to find this NULL character.
Last updated: 2024-07-24

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 ph0010421 on TCP/IP client ^{CODESYS Forge talk (Post)}
Hello TCIS_Send needs to be longer than 4 bytes because idata is 28 bytes long. There may be other ways, but I would make a UNION with string/array of bytes. Write your STRING into the AsString part then copy the AsBytes part into TCIS_Send (Elements [3] to [30]) then 252 would be in [31] (I've assumed the idata is always the same length)
Last updated: 2023-12-19

Post by k2saki on How to define CONDITIONAL PRAGMA that effects all ST-POU in project. ^{CODESYS Forge talk (Post)}
I'd like to use same code/project in different devices. (RPi, PLC) I change some lines in some POU before compiling. (array size, file path, etc ) My question is How to define pragma that effects all ST-POU in project. Is it possible ? I've read this. https://help.codesys.com/api-content/2/codesys/3.5.12.0/en/_cds_pragma_conditional/
Last updated: 2024-05-12

Post by talhaali on Active alarm access in ST ^{CODESYS Forge talk (Post)}
Hi, I am trying to access active alarms in code(As alarm count variable updates only when we go to to alarm table frame in visualization). I wrote following code but it is not working: VAR iCountActiveAlarms : INT; parritfActiveAlarms : POINTER TO ARRAY[0..0] OF IAlarm; itfAlarmManagerClientAll : IAlarmManagerClient; END_VAR AlarmManager.g_AlarmHandler.GetActiveAlarms( itfAlarmManagerClient :=itfAlarmManagerClientAll, iCountActiveAlarms => iCountActiveAlarms, parritfActiveAlarms => parritfActiveAlarms); The Value is always 0. Please help.
Last updated: 2024-06-06

Sort by relevance or date