Post by sumit on Not able to see input data coming from eip adapter on codesys ^{CODESYS Forge talk (Post)}
dhumphries, I changed the datatype this time from BYTE to USINT (because that's what my adapter is sending: array of uint8_t). The text "New Help String" you saw in previous screenshots is just the description of the input/s (it can be anything). I also looked into the logs (see attached) for that ! sign next to the device, I found that connection is being timeout. I tried some suggestions from online such as increase the RPI but still got connection timeout issue, also by changing the datatype, I still don't see incoming data from the adapter, although its visible on wireshark. thanks,
Last updated: 2024-03-07

Post by garrian on How to sort JSON object in codesys ^{CODESYS Forge talk (Post)}
Hi there, I'm testing out MQTT from my Wago PLC using JSON object. I have managed to publish this {"Temperature":15.6,"Setpoint":38.0} to my broker. Now I', trying to subscribe to the same message. The result is this: '{"Temperature":15.6,"Setpoint":38.0}95}ê$10šå$04$Nå$08²Ÿå$0B` á$08@šå' First, why do I see 95}ê$10šå$04$Nå$08²Ÿå$0B` á$08@šå' at the end of the message? Second, how Can i sort out this data to use it in my program? I followed a youtube tutorial which gave me the attached result, which works. But I need some other smart way of doing this when the object gets even more data in it. Any help is very appreciated :)
Last updated: 2024-05-04

Post by uluking on CodeSys2.3 Modbus 64-Bit Double Read Problem ^{CODESYS Forge talk (Post)}
Hi everyone, I would appreciate your help with a problem I've been working on for a few days but haven't been able to resolve. I am reading data from a Siemens PAC3220 energy analyzer using Modbus with Wago-8202. However, the device's energy indices are given as doubles. Since a double variable is 64-bit, it is not possible to read it directly. I have been struggling for days, I have written many conversion functions but I have not been able to get results. I would appreciate your help. I read 4 word variables and processed them. I am converting them according to IEEE-754, but I can't seem to read the correct data. I would appreciate your help.
Last updated: 2025-10-27

Post by uluking on CodeSys2.3 Modbus 64-Bit Double Read Problem ^{CODESYS Forge talk (Post)}
Hi everyone, I would appreciate your help with a problem I've been working on for a few days but haven't been able to resolve. I am reading data from a Siemens PAC3220 energy analyzer using Modbus with Wago-8202. However, the device's energy indices are given as doubles. Since a double variable is 64-bit, it is not possible to read it directly. I have been struggling for days, I have written many conversion functions but I have not been able to get results. I would appreciate your help. I read 4 word variables and processed them. I am converting them according to IEEE-754, but I can't seem to read the correct data. I would appreciate your help.
Last updated: 2025-10-27

Post by swol on HTML 5 - Controls -> Change Content-Security-Policy settings ^{CODESYS Forge talk (Post)}
Sorry for being late to the party... so it is not possible to use the webbrowser tool to display external websites in a visu anymore? As it is not possible to simply "adjust the ContentSecurityPolicyIncludeTrustedOrigins setting in the automatically generated webvisu.cfg.json file" as stated in the docs? We need to display data read from a Raspberry Pi (part of our computer network) in our webvisu. We used to do it by entering the Pi's IP address as the URL variable in the webbrowser element but now (I don't know since when, I'm new on the job) "The page’s settings blocked the loading of a resource (frame-src) at 'IP address' because it violates the following directive: “default-src 'self' 'unsafe-inline'”. What are the options for displaying the data?
Last updated: 2025-11-11

Post by reinier-geers on wEBCLIENT Post data api ^{CODESYS Forge talk (Post)}
Ive got the webclient axample. If i put https://reversed.notion.site/Marktprijzen-API-89ce600a88ac4abe8c2ad89d3167a83e example to https://reqbin.com/post-online then i get data. If i do the same in Webclient example i get " not a valid graphql request. Why ? sUrl := 'https://graphql.frankenergie.nl/' Request_type_post Contenttype = 1 (json ) Postvalue := '{"query":{"query":"query MarketPrices {\n marketPrices(date:\"2025-12-25\") {\n electricityPrices {\n from\n till\n marketPrice\n marketPriceTax\n sourcingMarkupPrice\n energyTaxPrice\n perUnit\n }\n gasPrices {\n from\n till\n marketPrice\n marketPriceTax\n sourcingMarkupPrice\n energyTaxPrice\n perUnit\n }\n }\n}' I tranfer the postvalue from String to WSTRING
Last updated: 2025-12-25

Post by anhkdv on Data storage and Export in Codesys ^{CODESYS Forge talk (Post)}
I am doing a SCADA project on temperature and humidity monitoring system. The customer requested that we store the database through codesys without the need for intermediary software such as MySQL, MSSQL,... and be able to export reports at selected times, reports exported to csv files. , xslm,... Can anyone help me?
Last updated: 2023-10-29

Post by leon78 on Codesys 3.5 SP17 Patch 2 CheckBounds (POUs for Implicit Checks) ^{CODESYS Forge talk (Post)}
Unfortunately, it was fixed in SP19, but I need SP17 CDS-82162 Bug Compiler: Checkbounds is not working for dynamic arrays with VAR_IN_OUT as index access Fixed [[GENERAL]] Compilerversion >= 3.5.19.0 https://de.codesys.com/fileadmin/data/Images/System/Releaseinformation/Release-Notes-CODESYS-35190.html
Last updated: 2023-11-16

Post by seesle on Extracting information out of a *.library or *.compiled-library file ^{CODESYS Forge talk (Post)}
Hey there, is there a way to extract any data out of a .library or a .compiled-library file? Do you have any tools or a description of the binary or something like this to get for example the referenced libraries of a *.library file or any other stuff? Thx in advance M.
Last updated: 2023-12-04

Post by talhaali on Adding a variable from text list into ST code ^{CODESYS Forge talk (Post)}
Hi, can I use a entry of a text list as variable in structured text? for example in attach picture, if i use want to use data of first row. I am trying to write: A : STRING := TextList.Default.0; but it is not workings
Last updated: 2023-12-07

Post by talhaali on Adding a variable from text list into ST code ^{CODESYS Forge talk (Post)}
Hi, can I use a entry of a text list as variable in structured text? for example in attach picture, if i want to use data of first row. I am trying to write: A : STRING := TextList.Default.0; but it is not workings
Last updated: 2023-12-07

Post by tomast on Communication PLC with HMI - how to send DUT via NVL. ^{CODESYS Forge talk (Post)}
Hi everyone, I am working with project where i have DUT wihth struct. I would like to fill this data trough a form on HMI. I use NVL to communicate and i would like to know how is it possible to do this? Thanks for all your advice in advance.
Last updated: 2024-08-23

Post by janber on REFERENCE TO in an array ^{CODESYS Forge talk (Post)}
Hi all, in the online help it written, that array of reference to data type is not possible. Ok... but if I create array of struct of reference to - everything works fine - please see the screenshots: and it works this way OK. Is it intention or error in compiler 3.5.18.20 and we should avoid it? Thanks a lot, Jan.
Last updated: 2024-10-14

Post by reinier-geers on Energie price ^{CODESYS Forge talk (Post)}
On a website i can get the energie price. But how does that work in codesys? There is a video of Rest client. But i can find the HTTP library. If i type on my browser : https://enever.nl/api/stroomprijs_vandaag.php?token=ANWB i get {"status":"true","data":"Please provide a valid API token. More information at https:\/\/enever.nl\/prijzenfeeds\/","code":"2"}
Last updated: 2024-12-03

Post by reinier-geers on Energie price ^{CODESYS Forge talk (Post)}
On a website i can get the energie price. But how does that work in codesys? There is a video of Rest client. But i can find the HTTP library. If i type on my browser : https://enever.nl/api/stroomprijs_vandaag.php?token=ANWB i get {"status":"true","data":"Please provide a valid API token. More information at https:\/\/enever.nl\/prijzenfeeds\/","code":"2"}
Last updated: 2024-12-03

Post by hassaank on CODESYS V3+ WAGO PFC200+ MODBUS RTU ^{CODESYS Forge talk (Post)}
Hi everyone, I’m new to CODESYS and Wago devices, and I’m trying to set up Modbus RTU communication. I have a Wago PFC200 (8110) and a 750-653 RS485 module, and I want to read data from an energy meter using Modbus RTU. Thanks in advance for your help!
Last updated: 2025-03-17

Post by lacypaige on Engineering Dissertation Help & Assignment Assistance. ^{CODESYS Forge talk (Post)}
This thread is for discussing engineering dissertation help, including research methods, choosing a topic, writing, and data analysis. Whether you need advice on structuring your dissertation, understanding industry trends, or solving research challenges, this is the place to ask questions and share ideas. Feel free to exchange tips, discuss best practices, and get support with engineering assignments and dissertations.
Last updated: 2025-03-19

Post by kevinm on Attaching Trace variable to Frame Configuration Variable ^{CODESYS Forge talk (Post)}
Is it possible to show a variable from a Frame Configuration in a Trace on that Visualization? I want to pass the FB for an AXIS_REF_ETC_SoE_Standard to the visualization and display live axis data in the visualization. However, I cannot find a way to use a Frame Configuration variable in the Trace Configuration dialog.
Last updated: 2025-04-04

Post by timvh on update data/tim ^{CODESYS Forge talk (Post)}
Change the actual time of your PLC. How to do this sometimes depends on the PLC you use. Please contact the vendor of the PLC to get this information. Or see the following example for using CODESYS date and time functions: https://forge.codesys.com/prj/codesys-example/date-and-time/home/Home/
Last updated: 2025-08-26

Post by jy77812 on Visualization XY Charter Question ^{CODESYS Forge talk (Post)}
Hello. I'm using Visualization XY Chart, and when I mark a circle through XY position data, a blue line is displayed in the circle with a red circle. At this time, can't I set the blue line not to be seen in the circle? Currently, whenever XY position is drawn, the line follows.
Last updated: 2025-10-02

Post by davidbo on i2c How does CODESYS handle exception or error messages. ^{CODESYS Forge talk (Post)}
For Raspberry Pi I have made a python script which regularly read a bulk of data over the ic2 from a device. Sometimes I get an Exception an IOError. I assume similar things can happen in CODESYS. So how does CODESYS handle that? Can I get any info about such an event?
Last updated: 2024-02-07

Post by reinier-geers on SysFileOpen does not work after update to V3.5 SP19 Patch 5 ^{CODESYS Forge talk (Post)}
At 19.1 the hFile_test should be RTS_IEC_HANDLE and always open-write - close in one cycle udi_handle: RTS_IEC_HANDLE; //handle-number. Is created by SysFileOpen udi_handle:=SysFileOpen(sFileName,Sysfile.AM_WRITE_PLUS, ADR(udi_ErrorCode)); udi_RetValWrite:=SysFileWrite(udi_handle, pRemBuffer, szRemBufSize, ADR(udi_ErrorCode)); //closing file IF udi_RetValWrite < szRemBufSize THEN ui_Error:=cWriteError; END_IF//error writing data udi_ErrorCode_Close:=SysFileClose(udi_handle);
Last updated: 2024-02-19

Post by i-campbell on Not able to see input data coming from eip adapter on codesys ^{CODESYS Forge talk (Post)}
Hello, I think you can try to change the Connection from Multicast to Point to Point. Please also make sure your windows firewall is allowing the correct UDP ports inbound for ethernet IP. You might also need to increase the RPI, so it times out slower.
Last updated: 2024-03-07

Post by rjonker on codesys mqtt publish serialization ^{CODESYS Forge talk (Post)}
pbPayload is a pointer, which it expects to point at a STRING. If you point it at an address holding a different data type, it will just assume those bytes are part of a string and likely trundle along memory until it finds a null byte (0x00) that would normally signify the end of a string PublishMessage := BOOL_TO_STRING(boolVariable);
Last updated: 2024-06-05

Post by mos89p on how to use UseDataExpanding() in datasource ^{CODESYS Forge talk (Post)}
Hi I need to update by software some structures in my datasource, i found this example: https://content.helpme-codesys.com/en/CODESYS%20Communication/_cds_update_data_interface.html it seems that because i use complex variable structure i need to use UseDataExpanding() instead of use data, the question is how to get an instance of IDatasourcesMgr3 i have the global variable g_Datasources is instantiated automatically
Last updated: 2024-06-18

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