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Post by ucconversions on displaying all incoming CAN bus messages ^{CODESYS Forge} ^talk ^(Post)
Hello Im using CAN API Im receiving CAN messages with no problem. below is my code. METHOD ProcessMessage VAR_IN_OUT ( Incoming message ) Message : CAN.RxMESSAGE; END_VAR VAR i: USINT; END_VAR recvCANid := Message.udiCanID; IF recvCANid = 16#18FF8247 THEN UserVarGlobal.g_countMsg_RPMset := UserVarGlobal.g_countMsg_RPMset + 1; FOR i := 0 TO 7 DO myDataFF82[i] := Message.abyData[i]; END_FOR END_IF but in this way I can only display CAN messages which I know its ID. I want to display all incoming CAN messages for example first incoming CAN message - I assign it into a variable Message1. second incoming CAN message - I assign it into a variable Message2. third incoming CAN message - I assign it into a variable Message3. Can you give me guidance? Thank you BR
Last updated: 2024-07-18

Post by drml on How to implement an interface (IElement)? ^{CODESYS Forge} ^talk ^(Post)
I'm struggling with the implementation of the IElement interface (in the ElementCollections library), which I will use to create a SortedList. I created a class (FB) "Device" that implements this interface and that has a "Priority" property that I want to use in order to compare the devices in my implementation of the ElementCompareTo method. Unfortunately, the IElement.ElementCompareTo method needs an IElement as an input, which doesn't know about the "Priority" property of "Device". I tried to define the input itfElement as a Device, but then it doesn't want to compile, because the type in the implementation doesn't match the interface.
Last updated: 2024-07-19

Post by hazarath on How extract JSONElement containing Array data ^{CODESYS Forge} ^talk ^(Post)
I want to extract each element of an Array. Can someone help me with this. When I use JSONElementToString (part of JSON Utilities SL), I am seeing output as "ARRAY" instead of actual data. Here is the JSON content that I want to read : { "value1Unit": { "units": "M" }, "data": { "stepSize": 300.23, "points": [6,8] } } I would like to read each item of the element "points" i.e. 6 and 8. Here is the code I used, // Reading the content as JSON reader ( xExecute := execute , pwData := ADR ( converted_value ), jsonData := jsonDataStorage ); // Get the JSON Element jsonDataStorage.FindFirstValueByKey( wsKey := fidKeyVar, diStartIndex := searchElem, jsonElement => jsonElement ); JSON.JSONElementToString ( element := jsonElement , wsResult := valueWstring ); The content of the output of valueWstring is shown as "ARRAY" instead of the array items i.e. 6 and 8 Please can someone help me.
Last updated: 2024-07-30

Post by installwhat on IDialogOpenedListener ^{CODESYS Forge} ^talk ^(Post)
Why do you develop things like this? The workflow should be highly dependent on autocomplete, then if that's not super obvious browse to definition and everything is made clear possibly with the checking of a few types. The nature of how things are done makes me think these libraries aren't developed for general use and are actually internal or for partners. The example projects include objects that don't appear in autocomplete and then lead nowhere obvious when browsing. Do you consider developer workflow when creating these libraries? Are some libraries really for public use such as Visu Utils and others not? If so which? It's really hard to tell.
Last updated: 2024-08-06

Post by jp23 on Unable to Connect to Modbus RTU Device ^{CODESYS Forge} ^talk ^(Post)
Hi all, I am attempting to use the Control Win V3 soft PLC to control a WAGO 750-315 remote I/O system via modbus RTU communication. I am struggling to connect to the device. I have been following this tutorial: https://www.youtube.com/watch?v=YlRfkESaNds I have setup my devices as shown in the images below. I have verified that my com port settings are correct as I am able to connect/control using modbus simulator software with these settings. I have also connected to a modbus master simulator program as instructed in the video, but the orange triangles will not go away. Additionally, I have updated my settings to 485 using the PLC shell. I have also set "always update variables" to enabled (1). Serial port, PCI-Bus, and modbus serial device status all show as "Not Running."
Last updated: 2024-08-26

Post by opineiro on How to manage variable types larger than 64 bits - Ethernet/IP ^{CODESYS Forge} ^talk ^(Post)
Hi there, I have a Keyence bar code reader connected to my plc through Ethernet/IP. The Bar code is 20 digits long (like 30100790020493036016), the scanner reads it correctly (I can verify that through the keyence software) but when it sends it through ETH/IP, it doesn't fit into a 64 bit variable and it trunks the data.(I've tried ULINT and LWord without success). When I loaded the EDS file, the read variable was defined as a byte with 128 bits length, which is quite strange for me. (see attached picture) How do I manage this variable? Thanks!
Last updated: 2024-09-23

Post by jacobwago on v3.5 SP19 - Modbus TCP Devices - Channel Limit? ^{CODESYS Forge} ^talk ^(Post)
Hello, I have experienced the same issue as described above but for the Modbus Serial configurator. Looking for a solution. In v3.5 SP19 Patch 7 the Modbus Serial Master Slave configurator has a "virtual" limit of 10 channels. In v3.5 SP18 Patch 5 this virtual limit does not exist. I can successfully copy back and forth from 18 to 19 with out any build error. However, this is not a good solution for our customers. What is even more confusing is that the IoDrvModbus library is the same version (4.3.0.0) for both SP18 and SP19. Please help in providing a fix to the virtual channel limit of 10 in SP19. Thanks,
Last updated: 2024-09-29

Post by ofey on OPC server crash ^{CODESYS Forge} ^talk ^(Post)
Hi! I repeatly encounter a crash of the OPC server, which forces a reboot of the controller with frequent connect/disconnect to the server. Have any of you encountered this before? And is it a workaround? ie. deny that particular client connection by timeout or similar instead of crashing the PLC? This is during a development phase of the user interface. Up to 3 others connect/disconnect frequently to test their code. It is a bit troublesome of the PLC crashes several times a day because of this :( I greatly appreciate all comments. I hope it exists a fix for this, or something that hinders the crash. I attached the logfile for the crash
Last updated: 2024-11-26

Post by ben1 on Help understanding analog in-/outputs ^{CODESYS Forge} ^talk ^(Post)
Hi there mate Most PLC's have a very similar concept with AI/AO - have you used any other software before? I have not used a Wago before myself, but I assume the concept would very much be: 1. Add the analog in & out cards to your hardware config. 2. Setup the raw input scaling on the hardware (eg. 4 - 20mA = 4000 - 20000) 3. Use a built in or homemade scaling block to scale your input as needed (eg. 4000 - 20000 = -100 - 2000kPa. 4. Write code as required 5. Scale output as needed (eg. 0 - 100% = 0-10000 = 0 - 10V) Is this the information you require?
Last updated: 2024-12-15

Post by arcadium on Library ENUM text representation in visualization ^{CODESYS Forge} ^talk ^(Post)
Hello, Maybe someone could help with this. When I add ENUM to a text field I get the number instead of the text. For my own ENUM variable I have declared and enabled text list value is displayed as text, but I need enum text displayed from softMotion and other internal FB's. In the picture I have one of desired ENUM variable setup, but in the visu I have number, but in the watch window it's text. There is probably some checkbox to tick, but was looking for an hour, can't find a solution. Would apreciate some help
Last updated: 2024-12-24

Post by hboertz on CamBuilder and first boundary position not zero ^{CODESYS Forge} ^talk ^(Post)
Hi @niallel, it is currently not possible to create periodic cams using SMCB.BoundImplicit(). If you want to create a periodic cam which does not start/end with all slaves values equal to zero, then you must specify the boundary conditions explicitly using SMCB.Bound(). When you finished your cam, you can check via CamBuilder.CheckContinuity(), if the cam fulfills the continuity requirements for a periodic cam (see input isPeriodic). But you are right, it should be possible to create periodic cams using implicit boundary conditions. I have added the following Jira issue, so that this feature might be included in a future SoftMotion version: SM-5537: CamBuilder: It should be possible to create periodic cams using implicit boundaries I hope this answers your question. Best regards, Hendrik
Last updated: 2025-01-08

Post by trusty-squire on Read "Homed" status from EtherCAT drive ^{CODESYS Forge} ^talk ^(Post)
@imdatatas, thanks for the info, I increased DSP402.uiHomingMinCycles to 10 and have a good feeling that will solve the issue of "false" homings. It's an intermittent issue so I'll report back once it's confirmed. @bruno-roth, also good info. According to my documentation, bit 14 is used to indicate the homed status. I did a test and the bit always stays true after it's been homed once (eg. even if I initiate a new homing procedure then hit the the e-stop mid homing), so I need to take that into consideration, but I can work with that. Thanks!
Last updated: 2025-01-09

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 george32 on TCP Server ^{CODESYS Forge} ^talk ^(Post)
Dear people, I would like to create a TCP server in my PLC program. The TCP server needs to communicate with an external device. I have been searching the internet and found that the libraries Syssocket or CAA NetBaseSrv are two possible solutions to create a TCP server. From what I have read, CAA NetBaseSrv is more user-friendly to implement than the Syssocket variant. However, I am still struggling to actually implement this library. Foremost is my little knowledge about creating a TCP server and how to read/understand each function block, especially the outputs of some blocks and the types, e.g. server has an output CAA.Handle, but I cannot find the explanation of CAA.Handle. I tried to find a good document that can help me understand how to implement a TCP server, but I could not find it. Thank you in advance, George
Last updated: 2025-02-20

Post by mkintegration on Reading Absolute Encoder Position From Yasakawa Drive ^{CODESYS Forge} ^talk ^(Post)
I am looking to read in the absolute position of a yaskawa servo drive Sigma 7 that is using absolute encoder. It looks like yaskawa outputs this across there CN1 I/O connecter and during operation just outputs encoder pulses. But at boot up transmits the Multiturn data position and the Position within one rotation (pulse train) on two different wires. Once the drives are enabled it just uses incremental pulses. Does any one have experience with what IEC blocks to use to read this information in. I attached the Yaskawa Manual section that talks about the format.
Last updated: 2025-02-26

Post by bingo on PLC Shell commands via ST Code ^{CODESYS Forge} ^talk ^(Post)
Suppose you need to switch PLC IP dynamically between 192.168.1.10\192.168.2.10, First, set PLC IP to 192.16.1.10. Create a PGVL with a flag ‘xUseSecondry’ xUseSecondry : bool ; create a function that use socket to update IP: FUNCTION fSwitchIP : bool VAR_INPUT useMainIP:bool; END_VAR --------------------------------CODE------ if useMainIP then SysSockSetIPAddress(‘0’, ‘192.168.1.10’); PGVL.xUseSecondry := 0; else SysSockSetIPAddress(‘0’, ‘192.168.2.10’); PGVL.xUseSecondry := 1; end_if Now, if during execution, you need to switch IP, call the function ‘fSwitchIP()’, Set input to 1 for main IP, 0 for secondary IP. In order to set secondary IP at startup, you can do the following: in your PLC_PRG add a flag: xInit : bool := 1 ; and the code: if xInit then if PGVL.xUseSecondry then fSwitchIP(0); end_if xInit := 0 ; end_if *Alternative way is to use system events.
Last updated: 2025-03-03

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