Post by simotion on Inheritance of axis ^{CODESYS Forge talk (Post)}
I have developped a function block 'Axis' the inherits from 'AXIS_REF_SM3' -> FUNCTION_BLOCK Axis EXTENDS AXIS_REF_SM3 In my global variable list I define a variable MasterDrive of type Axis and assign Axis1. Axis1 is a virtual drive (AXIS_REF_VIRTUAL_SM3). This type should inherit from AXIS_REF_VIRTUAL. VAR_GLOBAL MasterDrive : Axis := Axis1; However I get the error 'Cannot convert type'. What is the way to obtain what I want : function block inheriting AXIS_REF_SM3 and initialising this function block with a Softmotion virtual or real axis?
Last updated: 2023-12-07

Post by svn123 on Can V3.5.19 and V2.3.9 be installed on same Windows10 PC without affecting each other? ^{CODESYS Forge talk (Post)}
Hi All, Seasons Greetings! I have Codesys V3.5.19 patch 5 installed on a Windows 10 PC. I have received a program which is for Codesys V2.3.9. First I tried to convert it but had many conversion errors. I am wondering if it is possible to install Codesys V2.3.9 on same PC without affecting the V2.5.19 installations. Is this possible? SVN123
Last updated: 2023-12-28

Post by apurv on Cannot pass array of constant size to a function as a reference ^{CODESYS Forge talk (Post)}
I have a Array of constant size defined like this Var Constant MAX_SIZE :UINT := 10; End_var VAR array : ARRAY[0..MAX_SIZE] OF INT; END_VAR Now I want to pass this array to a function by reference, Function fun : INT VAR_IN_OUT CONSTANT MAX_SIZE : UINT; END_VAR VAR_INPUT array : REFERENCE TO ARRAY[0..MAX_SIZE] OF INT; END_VAR but when I run this it gives strange Errors Error : Cannot Convert type 'ARRAY [0..MAX_SIZE] OF INT' to type 'ARRAY[0..MAX_SIZE] OF INT'
Last updated: 2024-01-07

Post by wiresplus on INT_TO_WORD function not working ^{CODESYS Forge talk (Post)}
Hello, I need to take an INT input, and convert it to a WORD value. VAR DRV2Speed : WORD; //IO card takes a WORD where 16000 = full 10V output (equivalent to 50Hz) PumpFillSpeed : INT; //Users enter a value between 0 and 50 END_VAR IF <conditions> THEN DRV2Speed :=INT_TO_WORD((PumpFillSpeed/50)*16000); END_IF </conditions> According to me this should work - but it stays at 0, no matter what. What am I doing wrong?
Last updated: 2024-01-26

Post by remcoborghuis on C0032 Error to type Pointer to IoConfigParameter ^{CODESYS Forge talk (Post)}
Hi All, I'm using codesys on a raspberry PI. I use V3.5 SP18 Patch 2 development system and codesys for raspberry pi 4.8.0.0. Sometimes when I build the project I get error messages C0007: Expression expected instead of ',' and C0032: Cannot convert type 'Unknow type: '!!!'ERROR'!!!" to type 'POINTER TO IoConfigParameter'. I can't click on the message to bring me to the fault. After I do a "Clean all" the build finishes successful. Anyone who can help me with this problem? Thanks! Remco Borghuis
Last updated: 2024-03-25

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 liamb on Converting CANbus to Decimal from signed 2's complement ^{CODESYS Forge talk (Post)}
I need to combine two 8 bit CANbus messages to 16 bits signed int then convert to decimal Decimal from signed 2's complement. I've been using the below code to read for new messages, combine them then assign them to a variable What is the best way to do this for from signed 2's complement? fbRxMessage351(Data := RxMessage351Data); IF fbRxMessage351.NewMessage THEN ChargeVoltage := (WORD_TO_REAL((RxMessage351Data[0]) + ((RxMessage351Data[1]) * 256))) * 0.1; END_IF
Last updated: 2024-08-16

Post by sebastianrapi on Bibliothek: floatingpointutils ^{CODESYS Forge talk (Post)}
Hallo Zusammen, ich versuche die Bibliothek FloatingPointUtils.compiled-library-v3 zu benutzen. leider kommt dabei folgende Fehlermeldung: Kein Quellcode für dieses Objekt... (siehe Anhang) Wie kann ich diese Bib einbinden? Kann ich diese irgendwo herunterladen? Mein Ziel ist es ein DWORD (float) in ein REAL umzuwandeln. ICh hoffe, dass ich dies mit der Funktion HexStrToReal machen kann. So wie hier: https://gregstoll.com/~gregstoll/floattohex/ convert to float... Oder gibt es bei Codesys einen anderen Weg? Ich verwende v3.5 SP20 Patch 1 + (32Bit) Grüße Sebastian
Last updated: 2024-10-17

Post by garyl on Comments in arrays and assigning RST coil's to 600 outputs ^{CODESYS Forge talk (Post)}
Hello all, im working on a project that requires me to convert an old automation direct DirectSoft PLC d2-250-1. One of the problems im encountering is that all of the comments are attached to members of the different addresses. When i convert the addresses (1777 "C" registers, 777 X registers, and 20,0000 V registers) im running into difficulties keeping the inputs/outputs correct since they are missing documentation. Is there a good way to retain the comments of the indexes in the array? Secondly, initially i was declaring the "C" and "V" addresses individually and this worked to retain the comments as to which register did what, however i ran into a problem when one rung reset (or set to 0) approximately 600 C Addresses. Since each tag is separately declared this proved to be nearly impossible without a literal wall of code that attempted to crash the program. So i converted all of the registers (C,X,Y,V) into separate structs, declared them as arrays and pointed all of the original call outs in the program to the newly defined structs. However i have now lost comments and the program is very hard to follow. Thanks for any help with this issue.
Last updated: 2023-08-31

Post by hanoues on setting date and time on CPX-E ^{CODESYS Forge talk (Post)}
Hello, Can anybody here tell me how to modify the time and date on my CPX-E? I used the code I found on CODESYS online help, but it doesn't work. What am I missing? FUNCTION current_date_time : STRING VAR stUTC_Timestamp : SysTime; //utc time // ULINT#1528280694913 stLocal_TimeStamp : SysTime; //local time but is in general equal // ULINT#1528280694913 stdNow : SysTimeDate; //local time in an object to access each number (day, month...) dtNow : DATE_AND_TIME;//DT#2018-6-6-10:24:54 todNow : TIME_OF_DAY; // TOD#10:24:54.913 datNow : DATE; // D#2018-6-6 END_VAR SysTimeRtcHighResGet(stUTC_Timestamp); // ULINT#1528273494913 SysTimeRtcConvertHighResToLocal(stUTC_Timestamp, stdNow); //convert UTC ULINT to Local SysTime // stdNow.wYear = UINT#2018 // stdNow.wMonth = UINT#6 // stdNowy.wDay = UINT#6 // stdNow.wHour = UINT#10 // stdNow.wMinute = UINT#24 // stdNow.wSecond = UINT#54 // stdNow.wMilliseconds = UINT#913 // stdNow.wDayOfWeek = UINT#3 // stdNow.wYday = UINT#157 SysTimeRtcConvertDateToHighRes(stdNow, stLocal_TimeStamp); // ULINT#1528280694913 dtNow := TO_DT(stLocal_TimeStamp / 1000 ( ms )); // DT#2018-6-6-10:24:54 todNow := TO_TOD(stLocal_TimeStamp MOD TO_ULINT(T#1D)); // TOD#10:24:54.913 datNow := TO_DATE(dtNow); // D#2018-6-6 (convert to appropriate string) current_date_time := concat('$N[', TO_STRING(dtNow)); current_date_time:= concat(current_date_time,'.'); current_date_time:= concat(current_date_time, TO_STRING(stdNow.wMilliseconds)); current_date_time:= concat(current_date_time,'] - '); RETURN;
Last updated: 2024-05-21

Post by simotion on Pointer to Softmotion axis ^{CODESYS Forge talk (Post)}
In my projet I use Softmotion. There are several Softmotion axis (type SM_Drive_Virtual). In the Global Variable List I have an array of pointers to the adress of the Axis. Axis : ARRAY[1..iMaxCntAxes] OF POINTER TO AXIS_REF_SM3 := ADR(AX01_Axis), // [1 ADR(AX02_Axis), // [2] This works, but when compiling I get the message : . [WARNING] E3D: GVL Device: PLC Logic: Application: C0564: A reference to uninitialized variable AX01_Axis is used for initialization of Axis. Accessing the uninitialized variable may result in unexpected behavior. [WARNING] E3D: GVL Device: PLC Logic: Application: C0564: A reference to uninitialized variable AX02_Axis is used for initialization of Axis. Accessing the uninitialized variable may result in unexpected behavior. Is there a way when initializing to force the hardware (softmotion axis) to first initialize and then the Global Variable List?
Last updated: 2023-10-25

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 gediminas on Datasource OPC UA client system failure ^{CODESYS Forge talk (Post)}
I am using CODESYS v3.5 SP20 Patch 3 / Control for BeagleboneBlack SL v4.13 and after some time the OPC UA Server crashes. However, Runtime still works without any issues. The events leading up to the OPC server crash are the most suspicious: 1) Mutex deadlock detected - owner thread died, and 2) Runtime received SIGABRT. And it seems very similar with this topic except used versions - issues should be fixed with previous SP's. I can't seem to find any information about these events. Need some pointers in the right direction on how I can fix this problem.
Last updated: 2024-10-25

Post by youness on No source code available (cip object) ^{CODESYS Forge talk (Post)}
Hi yotaro, hope your problem was resolved. I had the same, but with an other library title. This exception is not detected during compilation, but rather at a given position in the program (when switching to a given visualization). Although the exception is generated at this point, it does not involve the visualization in question. This error is due to one of 3 reasons: 1) A division by zero somewhere: The program is able to detect divisions by zero at compile time. But in the case of a variable, which takes a valid value at init and changes to 0 at a later stage. 2) An invalid pointer: (either because it has a value of 0, or because it points outside the memory reserved for the program) is being dereferenced. Locate any pointers or interfaces you have in the code and check them - you should also be wary of mixing inline modifications and pointers. 3) Array overflow: Generally when a processing operation is executed outside the array's definition range. Example: a write loop with n iterations is executed on an array of dimmension n-1. On the other hand, the error message may not appear. In the latter case, the error may have fatal consequences, as the overflow has induced writing to potentially forbidden memory areas. This problem can be explained by the fact that it's not always the adjacent memory areas of PLC_PRG that are overwritten, but the memory areas that are randomly allocated to the array during compilation. In this case, however, there is no entry in the log, so you need to integrate the "Implicit Check function", which checks the line of code generating the error. To integrate this functions, click on Application --> POU for implicit controls Regards,
Last updated: 2024-07-16

Post by ellcap on Did a library update and now can't open project ^{CODESYS Forge talk (Post)}
EDIT: Title was a mistake. Should say now I can't compile / download project. Codesys V3.5SP19 Patch 2. Updated the libraries/packages using the Codesys Installer. I'm hit with this error ------ Build started: Application: ------- Typify code... [ERROR] iecvaraccess, 4.4.0.0 (system): IecVarAccess: C0086: No definition found for interface 'IIecVarAccess17' [ERROR] iecvaraccess, 4.4.0.0 (system): IecVarAccess: C0077: Unknown type: 'IIecVarAccess17' [ERROR] iecvaraccess, 4.4.0.0 (system): Initialize [IecVarAccess]: C0032: Cannot convert type 'IECVARACCESS(iecvaraccess, 4.4.0.0 (system))' to type 'IIecVarAccess17' [ERROR] iecvaraccess, 4.4.0.0 (system): QueryInterface [IecVarAccess]: C0231: Expression of type 'BOOL' expected in this place [ERROR] iecvaraccess, 4.4.0.0 (system): QueryInterface [IecVarAccess]: C0077: Unknown type: 'ITFID_IIecVarAccess17' [ERROR] iecvaraccess, 4.4.0.0 (system): QueryInterface [IecVarAccess]: C0046: Identifier 'ITFID_IIecVarAccess17' not defined Compile complete -- 6 errors, 101 warnings Build complete -- 6 errors, 101 warnings : No download possible
Last updated: 2023-09-25

Post by macros8 on Alarm Management - latched variable represented as Text list ^{CODESYS Forge talk (Post)}
Hi, I haven´t noticed you put the comment here. I thing it´s a bit different. What I want is to have detail errors of technology in data type e.g. INT. This variable I would latch to the corresponding error msg but I would like to get it convert to text from the text list and not keep it in INT form. Example. Main error Valve Error: SubErrors 1 - Both sensors 2 - Not retracted in time 3 - Not pulled out in time In HMI Main error + latch SubErrors => "Valve Error: Both sensors" The benefit is that text lists are part of translation and can be easily manipulated. I know I can create whole string msg in PLC but then, it lose advantage of Alarm management. Thanks. M.
Last updated: 2023-11-07

Post by amy123 on codesys mqtt publish serialization ^{CODESYS Forge talk (Post)}
Hello, I am using the CODESYS IIoT Libraries SL MQTT Publish. Does this publish block only support publishing STRINGS as a readable format? I can publish ENUM, STRUCT, BOOL; however, MQTT Explorer will only display strings. When I use Wireshark, I can see that it is publishing something, but it looks to be publishing a serialized version which is a bunch of 0s or random text. If so, is there any way to deserialize this information back into a readable format? See pictures, where I have a BOOL TRUE that gets published as 001. Then see where I publish a STRUCT and it's an incomprehensible combination of 0s - only the string variable is displayed. Or, is it expected that you convert everything to a string before publishing? Any help is greatly appreciated! :)
Last updated: 2024-02-16

Post by struccc on Release SP20 - Changes in behaviour? ^{CODESYS Forge talk (Post)}
Dear all, I've just started to migrate some of my ancient projects to SP20. There is one strange error (?) I have noticed so far. In a method call, depending on the circumstances I would like to return reference to an object, or an invalid reference: METHOD Add_EVT_OUT : REFERENCE TO FB_MSG VAR END_VAR IF __ISVALIDREF(refMSG_Entry) THEN Add_EVT_OUT REF= MANAGER.AddMsg_EVT_OUT( refMSG_Entry, _Get_EVT_Message(MSG_EVENT.OUT), _Get_EVT_AddCode(MSG_EVENT.OUT) )^; ELSE Add_EVT_OUT := 0; END_IF So far setting a reference variable to 0, did this. But now, the expression Add_EVT_OUT := 0; gives an error: [ERROR] DB_WTP_370: Add_EVT_ACK MSG_TRIGGER_EXT: C0032: Cannot convert type 'BIT' to type 'REFERENCE TO FB_MSG' Naturally... I can write: Add_EVT_OUT := DWORD#0; But is this the correct way? Is there any constant I could use instead, like "NULL"? Or this is totally wrong and to be avoided?
Last updated: 2024-03-24

Post by alexgooi on Modbus writing on value change ^{CODESYS Forge talk (Post)}
The way I usally tackle this is by syncing only words (then you are able to use the FB above). If you then want to write a Boolean simply type it like this. Value[1].0 := Bool1; Value[1].1 := Bool2; Value[1].2 := Bool3; Uints have the same number of bits than a INT/WORD so these ones will work as well (they are only represented diffrently). A Real will work but you will loose some infomration in the conversion. If you want to keep the information you can convert 2 words to a float with a function (for example with the IEEE-754 standard) . In this way the syncing to the server is very simple and in the Codesys Program you decide what part of the word you want to use.
Last updated: 2024-04-03

Post by pethun on Upgrade from codesys 3.5.19 to 3.5.20 ^{CODESYS Forge talk (Post)}
Hi We upgraded our ptoject from 3.5.19 to 3.5.20 but we get an error message in the latest version. We made our own trend function and its related to this we get error message: Trend_Menu Device: PLC Logic: Application: C0032: Cannot convert type 'RTS_SYSTIMEDATE(systimertc, 3.5.20.0 (system))' to type 'RTS_SYSTIMEDATE(systimertc, 3.5.17.0 (system))' The variables are defined as follow: start : SysTimeRtc.SYSTIMEDATE; end : SysTimeRtc.SYSTIMEDATE; The code that creates the error is the variable start and end IF xAssign THEN xAssign := FALSE; xPanEnable := FALSE; xZoomEnable := FALSE; drs.liFrom := VisuTrendStorageAccess.TrendStorageConvertToTimestamp(start, 0 (us)); drs.liTo := VisuTrendStorageAccess.TrendStorageConvertToTimestamp(end, 0 (us)); drs.m_itfDateRangeSelectorClient.SetCurrentRange(drs.liFrom, drs.liTo); END_IF I cant understand really what the error message means and what can be the cause of the error? It compiles fine in dthe older codesys 3.5.19. If anyone has some experience of this please help us out? We must upgrade due to the new licenses. Thanks
Last updated: 2024-04-20

Post by pethun on Upgrade from codesys 3.5.19 to 3.5.20 ^{CODESYS Forge talk (Post)}
Hi We upgraded our ptoject from 3.5.19 to 3.5.20 but we get an error message in the latest version. We made our own trend function and its related to this we get error message: Trend_Menu Device: PLC Logic: Application: C0032: Cannot convert type 'RTS_SYSTIMEDATE(systimertc, 3.5.20.0 (system))' to type 'RTS_SYSTIMEDATE(systimertc, 3.5.17.0 (system))' The variables are defined as follow: start : SysTimeRtc.SYSTIMEDATE; end : SysTimeRtc.SYSTIMEDATE; The code that creates the error is the variable start and end IF xAssign THEN xAssign := FALSE; xPanEnable := FALSE; xZoomEnable := FALSE; drs.liFrom := VisuTrendStorageAccess.TrendStorageConvertToTimestamp(start, 0 (us)); drs.liTo := VisuTrendStorageAccess.TrendStorageConvertToTimestamp(end, 0 (us)); drs.m_itfDateRangeSelectorClient.SetCurrentRange(drs.liFrom, drs.liTo); END_IF I cant understand really what the error message means and what can be the cause of the error? It compiles fine in dthe older codesys 3.5.19. If anyone has some experience of this please help us out? We must upgrade due to the new licenses. Thanks
Last updated: 2024-04-20

Post by hyys12 on How to use/create SOTU in LD program ^{CODESYS Forge talk (Post)}
I am trying to make a LD program for an existing installation with a motor. Here an inductive sensor is used to give an input, as a check to verify the conveyor is actually running. Here the plan was to use a TOF timer which gets constantly reset when the sensor input gets detected. The problem is, that if the conveyor is stuck, and the sensor sends a continous signal, the timer will never do what it is supposed to do. Therefor I need some help on how I can convert the input to a pulse, with the help of something like a SOTU. I just cannot find this in codesys anywhere.
Last updated: 2024-07-11

Post by paulg on Converting hex bytes to float ^{CODESYS Forge talk (Post)}
I'll be capturing a hex stream over serial into a RasPi and I'd like to convert a group of bytes into a float. I see this is available (https://content.helpme-codesys.com/en/CODESYS%20Development%20System/cdsoperatorrealto.html) but not its inverse (i.e. BYTE_TO_REAL). The packets will be 18 bytes but I'll be selecting 4 byte segments from the middle, swapping byte endianness (i.e. changing 0x51847641 to 0x41768451), and converting to float; I believe they adhere to IEEE 754. Is there a pre-built function for some or all of this, or do I need to follow (https://forge.codesys.com/forge/talk/Engineering/thread/dc5829c7ea/)? Thanks!
Last updated: 2024-08-02

Post by dsa28 on OPC UA subscriber not operational ^{CODESYS Forge talk (Post)}
Hello All, Hopefully I can get some help configuring an OPC UA subscriber in a CODESYS runtime in a Raspberry Pi 5 that tries to retrieve data from an OPC UA publisher (in this case running in a TwinCAT system). I tried to follow the steps described in the page to implement the OPC UA subscriber: https://content.helpme-codesys.com/en/CODESYS%20Examples/_ex_opcua_pubsub.html Seems that the example provided was created with version 3.5.16.0. Now with version 3.5.20.20 is not possible to open the complete project neither convert it. Anyway, after configuring all IPs and ports used in the OPC UA connection function block but the connection state always shows DISABLED. Can someone help me to do the proper configuration of the OPC UA subscriber? Many thanks in advance.
Last updated: 2024-10-22

Post by bertcom on Converting each character to a string into ASCII ^{CODESYS Forge talk (Post)}
Good afternoon, I have a project where i need to split a string and send it in ascii code to an Domino Printer. Concept: i get an String from an Zebra scanner looking like this : " R002043;5410761402862;Oil Plus 2C Comp.A - Gris Belge;1286193824;" To start is the ";" the seperator. i found some functions to delete the ";" in a string. this is okay but now i want to convert each digit in the string into ascii like this: R=82 0=48 0=48 2=50 0=48 ... This because the printer wants to receive a string like this: <esc>OQ001TE 82 48 48 50 48 ...<eot></eot></esc> Anyone who can help me with setting me on the right track with some advice?
Last updated: 2024-11-08

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