Post by paro on OPCUA array max length? ^{CODESYS Forge talk (Post)}
I think the amount of data is already relatively high and maybe it has something to do with that? Maybe also the CPU load of your device? an array with string(5000)? and have you tested with how many array elements it still works?
Last updated: 2024-02-17

Post by ph0010421 on Converting each character to a string into ASCII ^{CODESYS Forge talk (Post)}
So the printer wants an ASCII conversion of the hex equivalent of ASCII characters?? They don't make it easy for us
Last updated: 6 days ago

Post by ppix on Establishing TLS Connection with MQTT Broker using MQTT Client SL Package ^{CODESYS Forge talk (Post)}
I’m currently working on establishing a TLS connection with an MQTT broker using the MQTT Client SL package in CODESYS. While I’ve successfully established communication with the broker without TLS, I'm encountering issues when trying to enable TLS. In the 'MQTT Explorer' application, I can easily upload the server certificate (.crt), client certificate (.crt), and client key (.key). However, in CODESYS, I can’t find a way to upload my client key (.key file). Here's a summary of my current setup: Certificates: I have uploaded both the client and server certificates to the certificate store under the 'Trusted Certificates' folder in the security screen. TLS Context Initialization: Despite setting the _sCommonName as the name of my client certificate, a new self-signed certificate is created and placed within the device’s certificates. I then need to manually move this certificate to the trusted certificates folder. This results in three certificates in my trusted certs folder: client cert, server cert, and the newly created cert. _ciDefaultCertInfo : MQTT.NBS.CERT_INFO := (psInfo := ADR(_sCommonName), udiSize := TO_UDINT(LEN(_sCommonName))); // CN of the certificate (common name) _sCipherList : MQTT.NBS.CIPHER_LIST := STRUCT(psList := ADR('HIGH'), udiSize := 4); // Cipher string see https://www.openssl.org/docs/man1.1.1/man1/ciphers.html _tlsContext : MQTT.NBS.TLSContext := ( sUseCaseName := _sCommonName, // A certificate is stored in the certificate store with the use case name. You can choose any name. Here we use the common name. ePurpose := MQTT.NBS.PURPOSE.CLIENT_SIDE, // For client certificates set this to NBS.PURPOSE.CLIENT_SIDE sTLSVersion := '1.3', // The TLS version sCipherList := _sCipherList, // Set the cipher list sHostname := sHostname, // The hostname of the broker udiVerificationMode := 2, // 2 => Active Peer verification ciCertInfo := _ciDefaultCertInfo, // Set the cert info itfCertVerifer := 0); // 0 => No Verifier mqttClient : MQTT.MQTTClient := (xUseTLS:=TRUE, itfTLSContext := _tlsContext, itfAsyncProperty := _asyncProperty); Additional Details: In the client FB, I’ve set uiPort:= 8883, xUseTLS:= TRUE, and configured itfTLSContext as mentioned above. The certificates are encrypted with SHA256RSA. sHostname is the IP address of my broker. I’ve attached a copy of the client FB, which shows straight lines where variables are assigned and boxes where they are not. I am currently trying this on the only 2 compatible versions of COSDESYS with my controller (V3.5.15.20 and V3.5.18.40) My Question: How do I correctly set up this mTLS connection? What might I be missing? Any guidance or suggestions would be greatly appreciated, especially considering I’ve already successfully established a non-TLS connection with the same broker. Thank you in advance for your help!
Last updated: 2024-06-19

Convert Array Of DINT To STRING ^{CODESYS Forge talk (Thread)}
Convert Array Of DINT To STRING
Last updated: 2023-12-03

How to get DefaultViewMode of POUs? ^{CODESYS Forge talk (Thread)}
How to get DefaultViewMode of POUs?
Last updated: 2015-05-21

Array of pointers to output ^{CODESYS Forge talk (Thread)}
Array of pointers to output
Last updated: 2013-05-13

Word to array of byte ^{CODESYS Forge talk (Thread)}
Word to array of byte
Last updated: 2022-09-22

Post by sturmghost on Mimic behavior of the visualization button element with a custom button ^{CODESYS Forge talk (Post)}
Im wondering how Codesys is doing the mouse event capturing with their visualization button element? If you add such a button without configuring any input configuration event (like OnMouseDown) or button state variable and then click on the button, the button changes to the visual pressed state and back if you release the button (so they must react to an OnMouseDown event). But how? If I try to mimic this behavior with my custom button visualization element (like a basic rectangle) I need to use an input configuration event to change the color of the button (to make it look like the button was pressed on OnMouseDown event). When I try to add this button via a Frame-Element to my main visualization page I'm unable to use an input configuration event on the Frame-Element because the input configuration event on the button element won't be evaluated anymore (it seems like you can't stack input fields, e.g. invisible input elements, onto each other). Hence the button is not shown pressed anymore. How they do it?
Last updated: 2024-08-04

Post by micik on Reverse bytes in an array ^{CODESYS Forge talk (Post)}
Hello, I'm getting the data in Codesys that is an array of 8 bytes. From this array, I need to foram LREAL number, however, because of different endiannes I need to reverse bytes in this array and then copy to a LREAL variable. For this I'm using a loop and it works OK. I wonder if there is a built in function to do this. I have found CAA Memory library but it has functions like reverse bytes in DWORD. But it seems it doesn't have what I need. https://content.helpme-codesys.com/en/libs/CAA%20Memory/Current/CAA_Memory/Reverse-Bit-Swap-ByteWord-order/ReverseBYTEsInDWORD.html What I need is a function to reverse bytes in an 8 byte array, or something similar.
Last updated: 2024-08-22

Post by micik on Reverse bytes in an array ^{CODESYS Forge talk (Post)}
Hello, I'm getting the data in Codesys that is an array of 8 bytes. From this array, I need to foram LREAL number, however, because of different endiannes I need to reverse bytes in this array and then copy to a LREAL variable. For this I'm using a loop and it works OK. I wonder if there is a built in function to do this. I have found CAA Memory library but it has functions like reverse bytes in DWORD. But it seems it doesn't have what I need. https://content.helpme-codesys.com/en/libs/CAA%20Memory/Current/CAA_Memory/Reverse-Bit-Swap-ByteWord-order/ReverseBYTEsInDWORD.html What I need is a function to reverse bytes in an 8 byte array, or something similar.
Last updated: 2024-08-22

Post by alexgooi on OPC-UA and other communication questions ^{CODESYS Forge talk (Post)}
Dear forum, I currently have a big question mark above my head, and maybe this forum can shine some light on the situation. I recently updated to Codesys 3.15 SP19 Patch 6. And now I’m trying to setup the OPC-UA server, besides that I’m trying to connect to the controller with the Codesys V3 (Ethernet) protocol. OPC-UA I have installed the correct licenses on my controller (Runtime and communication). I’m able to connect to the controller with an OPC-UA client, and I’m able to browse the tags, so far so good. Therefore I’m assuming that the OPC-UA server is running on the controller. But now the strange part, in the device security settings I have set the communication Policy to BASCI256SHA256 ( I also have tried the other ones) and the communication mode is set to secure if possible (I also have tried all the other ones) (see picture). With these settings I would assume that I would only be able to login with a Basic256SHA256 policy with a client. But the opposite is true, I am able to login using the no policy mode and when I set it to Basic256SHA256 the client (UA-Expert) notes that this policy is not available on the server. I then check the certificates and I noted that there is no certificate for the OPC-UA server, I tried to generate one but it gave the error that the certificate has not been created by the device (See picture). To summarize I have no clue what is going on, and the controller does the opposite of what I would expect. Codesys Ethernet V3 driver I have a HMI connected to the same controller using the Ethernet V3 driver. But this will not connect. I tried all the Protocols (see picture), with and without the username and password enabled. But it will not connect, when I scan the available servers I can see the controller with the port number that I am expecting, so I’m assuming that the Codesys V3 ethernet driver is up on the controller. Does anyone can give me some direction, because the stuff that I tried doesn’t make sense to me. Thank you in advance
Last updated: 2024-04-02

Post by k2saki on Table How to set row number from 1 ( not from 0) ^{CODESYS Forge talk (Post)}
In Codesys visu, Table row number always start from 0. How do I set row number from 1 ?
Last updated: 2024-05-25

Post by ben1 on How to write multiple coils (Modbus FC15) ^{CODESYS Forge talk (Post)}
When you say it does not work, does nothing happen or do you get an error? I have not used this function in codesys but from my past experience with Modbus I believe the coils need to be contiguous, which may be why yours is failing? Have you tried using Write Registers (16) to do the job? Or is their data in-between you do not want to edit in the transaction?
Last updated: 4 hours ago

Post by rickj on Defining local variables that can be independent with several users. ^{CODESYS Forge talk (Post)}
You need to create an array with one element for each possible user. I usually define these arrays in the root screen. FrameIndex : Array [0..MaxUsers] OF INT; Then use the global CurrentClientId (defined by one of the VISU libraries) to index the array element used to select the frame. FrameIndex[CurrentClientId]
Last updated: 2023-10-21

Post by ivanj on Adafruit PWM library ^{CODESYS Forge talk (Post)}
Hi to all. How can I set in parameters of library abowe movement setings by angle or throttle?
Last updated: 2024-10-10

Post by nano on How to access to variable value through symbolic string name ^{CODESYS Forge talk (Post)}
i know, this is the reason for us either. PLC-Handler is to big, and only available with additional Contracts/Costs. OPC-UA is to slow for us. As described, there is a solution available, but im not allowed to post them here. i would prefer you send a message at codesys store by "have a question" or similar called. Not sure. Or, if an Codesys-Official Member allows to share that informations, i can give you the right hints.
Last updated: 2024-06-15

Post by andrax on CodeSys Raspberry pi I2C driver not found ^{CODESYS Forge talk (Post)}
I took a look at your project. First of all, a Raspbery Pi4 is installed. You must use the GPIOs_A_B(GPIOs B+/Pi2). The error ULINT can't be set to IDINT.... with your project as well. If I change your project to ‘CODESYS_Control_for_Raspberry_Pi_SL’ the error is gone.
Last updated: 2024-11-09

Post by mondinmr on Direct Pointers in IOMapping for EtherCAT with IoDrvEthercatLib.ETCSlave_Dia ^{CODESYS Forge talk (Post)}
I have found a very interesting solution using: IoConfigTaskMap IoConfigConnectorMap IoConfigChannelMap The first is the list of IO tasks. The second is the connector for each IO module in the IOMap. The third is the individual input or output on the IOMap. One of the properties of the connector is another pointer to a connector, which corresponds with the connector of the EtherCAT slave. Through this information, it is possible to understand to which EtherCAT slave an IO connectormap corresponds. I am attaching an FB that allows for the construction of an IO map and finding the pointer to the actual IOs in the IOMap based on the bitoffset. FUNCTION_BLOCK IOExplorer VAR_INPUT END_VAR VAR_OUTPUT END_VAR VAR inputChannels: COL.LinkedList; outputChannels: COL.LinkedList; ulintFactory: COL.UlintElementFactory; END_VAR METHOD inputAtBitOffsetOfConnector : POINTER TO BYTE VAR_INPUT conn: POINTER TO IoConfigConnectorMap; bitOffset: UDINT; END_VAR VAR it: COL.LinkedListIterator; itf: COL.IElement; elem: COL.iUlintElement; channelInfo: POINTER TO ADVChannelInfo; bitOffsetR: UDINT; END_VAR inputChannels.ElementIterator(it); WHILE it.HasNext() DO it.Next(itfElement => itf); __QUERYINTERFACE(itf, elem); {warning disable C0033} channelInfo := TO___UXINT(elem.UlintValue); {warning restire C0033} IF channelInfo^.connectorField = conn THEN IF bitOffsetR = bitOffset THEN inputAtBitOffsetOfConnector := channelInfo^.addr; RETURN; END_IF bitOffsetR := bitOffsetR + channelInfo^.size; ELSE bitOffsetR := 0; END_IF END_WHILE inputAtBitOffsetOfConnector := 0; END_METHOD METHOD outputAtBitOffsetOfConnector : POINTER TO BYTE VAR_INPUT conn: POINTER TO IoConfigConnectorMap; bitOffset: UDINT; END_VAR VAR it: COL.LinkedListIterator; itf: COL.IElement; elem: COL.iUlintElement; channelInfo: POINTER TO ADVChannelInfo; bitOffsetR: UDINT; END_VAR outputChannels.ElementIterator(it); WHILE it.HasNext() DO it.Next(itfElement => itf); __QUERYINTERFACE(itf, elem); {warning disable C0033} channelInfo := TO___UXINT(elem.UlintValue); {warning restire C0033} IF channelInfo^.connectorField = conn THEN IF bitOffsetR = bitOffset THEN outputAtBitOffsetOfConnector := channelInfo^.addr; RETURN; END_IF bitOffsetR := bitOffsetR + channelInfo^.size; ELSE bitOffsetR := 0; END_IF END_WHILE outputAtBitOffsetOfConnector := 0; END_METHOD METHOD scanIO VAR_INPUT END_VAR VAR numTasks: DINT := IoConfig_Globals.nIoConfigTaskMapCount; tType: WORD; ioTask: POINTER TO IoConfigTaskMap; numCon: WORD; connector: POINTER TO IoConfigConnectorMap; numCh: DWORD; channelInfo: POINTER TO ADVChannelInfo; iTsk: DINT; iCon: WORD; iCh: DWORD; i: DINT; _tmpConnList: COL.IList; elem: COL.IUlintElement; itf: COL.IElement; tmpCh: POINTER TO ADVChannelInfo; lastE: DINT; e: COL.COLLECTION_ERROR; e1: Error; END_VAR VAR_INST lF: COL.ListFactory; END_VAR IF outputChannels.CountElements() > 0 OR inputChannels.CountElements() > 0 THEN RETURN; END_IF _tmpConnList := lF.CreateDynamicList(16, 16); //Iterate through all IO tasks FOR iTsk := 0 TO numTasks - 1 DO ioTask := ADR(IoConfig_Globals.pIoConfigTaskMap[iTsk]); //Store the type of the task (Input or Output) tType := ioTask^.wType; numCon := ioTask^.wNumOfConnectorMap; //Iterate through all connectors of the task FOR iCon := 0 TO numCon - 1 DO connector := ADR(ioTask^.pConnectorMapList[iCon]); numCh := connector^.dwNumOfChannels; //Iterate through all channels of the connector FOR iCh := 0 TO numCh - 1 DO //Create a new channel info object and fill it with the address, connector and size of the channel //Connectors is address of field connector in this case like EtherCAT slave //Address is the address of the IOMap //Size is the size of channel data in bits in IOMap channelInfo := __NEW(ADVChannelInfo); channelInfo^.addr := connector^.pChannelMapList[iCh].pbyIecAddress; channelInfo^.connectorField := connector^.pConnector; channelInfo^.size := connector^.pChannelMapList[iCh].wSize; //We put the channel info a temporary ordered list //Order is based on the address of IOMap lastE := TO_DINT(_tmpConnList.CountElements()) - 1; FOR i := 0 TO lastE DO _tmpConnList.GetElementAt(udiPosition := TO_UDINT(i), itfElement => itf); __QUERYINTERFACE(itf, elem); {warning disable C0033} tmpCh := TO___UXINT(elem.UlintValue); {warning restire C0033} //If the address of the channel is smaller than the address of the channel in the list IF tmpCh^.addr > channelInfo^.addr THEN //Insert the channel in the list at the current position _tmpConnList.InsertElementAt(TO_UDINT(i), ulintFactory.Create(TO_ULINT(channelInfo))); //Clear the channel info pointer channelInfo := 0; //Exit the loop i := lastE + 1; END_IF END_FOR //If the channel info is not 0, it means that the channel was not inserted in the list IF channelInfo <> 0 THEN //Add the channel to the end of the list elem := ulintFactory.Create(TO_ULINT(channelInfo)); _tmpConnList.AddElement(elem); END_IF END_FOR //Iterate temporary list and add the channels to the input or output list lastE := TO_DINT(_tmpConnList.CountElements()) - 1; FOR i := 0 TO lastE DO _tmpConnList.GetElementAt(udiPosition := TO_UDINT(i), itfElement => itf); __QUERYINTERFACE(itf, elem); {warning disable C0033} tmpCh := TO___UXINT(elem.UlintValue); {warning restire C0033} //If type is input, add the channel to the input list IF tType = TaskMapTypes.TMT_INPUTS THEN e := inputChannels.AddElement(ulintFactory.Create(TO_ULINT(tmpCh))); //If type is output, add the channel to the output list ELSIF tType = TaskMapTypes.TMT_OUTPUTS THEN e := outputChannels.AddElement(ulintFactory.Create(TO_ULINT(tmpCh))); ELSE __DELETE(tmpCh); END_IF END_FOR //Clear the temporary list _tmpConnList.RemoveAllElements(); END_FOR END_FOR END_METHOD
Last updated: 2024-02-13

Post by bjarne-pagaard on Codesys v3.5 Sint to byte ^{CODESYS Forge talk (Post)}
Hi A SINT is a short (signed) integer. It is already only 1 byte - so you should have no problem casting it to a byte like so: bMyByte := TO_BYTE(sintMyShortInt); If you have a regular INT you want to put in 2 bytes - there are a lot of ways you can do this. A Union is certainly one of them. You could have a union with 2 memebers: An array of 2 bytes as one member, and an integer value as another member. Another way would be to look at MEMCPY to put the value into your CAN-message. .. or create a function to take your input value as input, and giving you 2 individual bytes as output. This could be handy if you need to change the byte-order. Integer data types: https://help.codesys.com/webapp/_cds_datatype_integer;product=codesys;version=3.5.17.0 -Bjarne
Last updated: 2024-04-24

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 spfollen on Access to the path *** is denied ^{CODESYS Forge talk (Post)}
I have the same error. It appears to be something in my project. An older version of the same project from a few days ago is fine.
Last updated: 2024-01-30

Post by john-robinson on Limiting Memory Access of an Array to Within its Bounds ^{CODESYS Forge talk (Post)}
Thanks Tim! This was exactly the functionality we were looking for. We are already using implicit checks to check for divide by 0 errors, we will add implicit checking for array bounds.
Last updated: 2024-03-06

Post by ljg007 on Variable assignments ^{CODESYS Forge talk (Post)}
That is an output of the Function Block ModbusMasterRTU example: xIsConnected=> xIsConnected In this line the VAR ModbusMasterRTU.xIsConnected is written to VAR xIsConnected xError=> is writing to nothing here.
Last updated: 2024-07-22

Post by mubeta on parker servo and position ^{CODESYS Forge talk (Post)}
... you say 1.6 Nm is only enough torque to unscrew a loose bottle cap ... This the the value of torque: from 1,2 Nm to 1,4 Nm that is cosidered acceptable for an old people. 1,6 Nm the torque considered acceptable for general use caps.
Last updated: 2024-08-07

Post by fredruel on ModbusServer became unreachable if reach maximum of 16 byClientConnections ^{CODESYS Forge talk (Post)}
By the way an inactive socket could take up to 2 minutes to be free but previously it was for ever.
Last updated: 2024-08-27

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