Post by fazlinda on AWS IoT core CODESYS ^{CODESYS Forge talk (Post)}
Hi, Im having a problem sending a data from my structure text code from codesys to aws. Instead of receiving {state {reported {data: 123}}} It display {state {reported {data: 123}}}\x00 \x00 \x00 \x00 \x00 \x00 \x00 Please help me solve this issues. how to remove \x00 ?
Last updated: 2023-12-06

Post by abjha1998 on Converting UINT into bytes and converting 2Bytes into UINT ^{CODESYS Forge talk (Post)}
Hi, I have been working on Codesys V3.5 with PFC200 controller and Can Gateway 750-658. I want to convert the incoming CAN data from bytes into UINT and for outgoing data bytes to UINT. Does anyone has experience with this kind of data? I tried few different ways but it doesn't seem to be working.
Last updated: 2023-12-07

Post by dengsberg on Check Connection Status of the OPC-UA Server for Data Source Manager with OPC-UA Client ^{CODESYS Forge talk (Post)}
I am using the Data Source Manager with OPC-UA Client to get data from another CodeSys application in the same Project. How can I check in the PLC_PRG structured text if the connection is ok or not?
Last updated: 2024-09-07

Post by nima-khajehali on Data Transferring between 2 PLCs in a same PC ^{CODESYS Forge talk (Post)}
Hi Guys, I want to simulate the data exchange between 2 soft PLCs on the same PC. We are trying to simulate the process and we could not see the desired result. What should I do to pass all data between these 2 PLC's correctly ? Please see attached
Last updated: 2024-02-05

Post by timvh on Send data to USB ^{CODESYS Forge talk (Post)}
https://forge.codesys.com/prj/codesys-example/file-utilities/home/Home/
Last updated: 2024-07-22

Post by vladimirsmall on Send data to USB ^{CODESYS Forge talk (Post)}
Thank you on support
Last updated: 2024-08-05

Post by robbudge on Data Source Error 418 ^{CODESYS Forge talk (Post)}
Same ? Did you find the Solution??
Last updated: 2024-10-11

Post by grepoo on Data Source Error 418 ^{CODESYS Forge talk (Post)}
Hi, Same error here, have you found any solution ? Thx
Last updated: 2025-11-14

Post by eschwellinger on too much data for the controller ^{CODESYS Forge talk (Post)}
Retains used in the project?
Last updated: 2026-06-02

Post by sebastianrapi on Bibliothek: floatingpointutils ^{CODESYS Forge talk (Post)}
@Strucc.c: thanks very mutch. Yes, I think that was the problem. I tried yesterday a similar function, i have found: IEEE32 in REAL FUNCTION IEEE32_TO_REAL : REAL VAR_INPUT IN:DWORD; END_VAR VAR PTREAL:POINTER TO REAL; END_VAR PTREAL:=ADR(IN); IEEE32_TO_REAL:=PTREAL^; END_FUNCTION REAL in IEEE32 FUNCTION REAL_TO_IEEE32 : DWORD VAR_INPUT IN:REAL; END_VAR VAR PTDWORD:POINTER TO DWORD; END_VAR PTDWORD:=ADR(IN); REAL_TO_IEEE32:=PTDWORD^; END_FUNCTION http://www.oscat.de/community/index.php/topic,357.0.html And this works perfect. Now, the only thing that isn't clear is the libary "FloatingPointUtils, 3.5.17.0 (System)"... For me, the libary doesn't work. But the problem is now solved. Thanks a lot.
Last updated: 2024-11-21

Post by jmfernandes on OpenDir always in error ^{CODESYS Forge talk (Post)}
Hello just to give more feedback the error I get is "ERROR_UNKNOWN :represents raw value of 5110" in File.DirOpen. The xDone never gets true, and I never get the listing of files (csv files in this case). In the hDir i get the value of 0 for a DWord!?
Last updated: 2024-07-31

Post by timvh on Colors look different when logged in and running ^{CODESYS Forge talk (Post)}
At the top of the Visualisation Properties View, you can enable the "Advanced" options. This will give you access to more properties than what you currently see. There might be a variable linked to the "advanced" colour property where the fill colour is determined by the value of this variable (dword).
Last updated: 2025-01-09

Post by reinier-geers on Swap Output in frame ^{CODESYS Forge talk (Post)}
How can i swap an output in a frame ? Ive got a frame of a mixer. use this twise. I want to turn these on and of. i can Get in the frame as dwAdr_Mixer : DWORD; . as Var_IN_OUT. Then Adress as Adr(Output ) But in the frame i cant swap dwAdr_Mixer^ :-= not dwAdr_Mixer^ ;
Last updated: 2024-03-11

Post by xcqt on Oop best practice ^{CODESYS Forge talk (Post)}
Hi all, I’m currently trying to improve my OOP structure in CODESYS and I’m looking for some input on how others approach this. I understand the basics like inheritance, interfaces, abstract FBs, methods, and properties, but I still struggle a bit with the overall architecture and what’s considered clean or scalable in bigger projects. As an example, I’m working on two different energy meter function blocks: FB_EnergyMeter_MQTT reads data from MQTT (strings) FB_EnergyMeter_Modbus reads data from Modbus (words) Both have their own Update() method and implement the same interface (something like IF_EnergyMeter). Later on, I’ll probably add more meter types, but they should all behave the same from the controller’s point of view. Now, there’s a FB_GridControl block that needs power data from these meters. I see two options here: Define the meter blocks inside FB_GridControl and call them directly (for example fbModbusMeter.UpdateModbus()). Keep the meter blocks outside and pass them into FB_GridControl as interface references, so the control block doesn’t know which specific type of meter it’s dealing with. Option 2 feels cleaner and more flexible to me, but I’m not entirely sure how to handle the data flow in that case. Should I pass the meter instance through an interface reference (REFERENCE TO IF_EnergyMeter)? Or is there a better way to link the external FBs to the control block? I’d like to hear how you structure this kind of setup or see an example from someone who has done something similar. EDIT: I think i need to do something like this fbModbusUpdateInput(wInput:= wWordValue); fbMqttUpdateInput(strInput:= strStringValue); IF bUseMqtt THEN Meter REF = fbMqttUpdateInput; ELSE Meter REF = fbModbusUpdateInput; END_IF fbControl.SetMeter(UsedMeter := Meter); Or am i thinking wrong? Thanks, Thomas
Last updated: 2025-10-16

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 jzhvymetal77 on VarAccGetAddress does not return the correct address for TYPE_ARRAY or TYPE_USERDEF. ^{CODESYS Forge talk (Post)}
VarAccGetAddress does not return the correct address for TYPE_ARRAY or TYPE_USERDEF. When you use VarAccGetNode, it returns a proper IBaseTreeNode if you provide the full path of an array element or structure element, and it even provides the correct data type. The problem is that with TYPE_ARRAY, it returns the start address of the array rather than the indexed element. With TYPE_USERDEF, it only returns the offset of the element instead of the actual address. This causes many issues with nested structures or arrays of structures, since it requires manually calculating the address based on the parent IBaseTreeNode. See attached image and example.
Last updated: 2025-08-28

Post by baotthitawat on Cloud SCADA for Industrial Energy Monitoring ^{CODESYS Forge talk (Post)}
Recently I’ve been exploring ATSCADA iEnergy Tools for SCADA-based energy monitoring systems. One thing I find interesting is how modern SCADA platforms are evolving beyond traditional machine monitoring. Many industrial systems are now using Cloud SCADA architectures for centralized energy management, remote dashboards, and operational analytics. ATSCADA iEnergy Tools supports: Real-time energy monitoring Historical data logging MySQL integration Reporting and Excel export Remote SCADA dashboards Cloud-based monitoring systems I think this type of solution is practical for factories, power monitoring applications, building management systems, and other industrial automation projects where energy optimization is becoming increasingly important. Industrial automation is clearly moving toward web-based and cloud-connected SCADA platforms, especially as more facilities focus on digital transformation and smarter energy management
Last updated: 2026-05-26

Post by baotthitawat on Cloud SCADA for Industrial Energy Monitoring ^{CODESYS Forge talk (Post)}
Recently I’ve been exploring ATSCADA iEnergy Tools for SCADA-based energy monitoring systems. One thing I find interesting is how modern SCADA platforms are evolving beyond traditional machine monitoring. Many industrial systems are now using Cloud SCADA architectures for centralized energy management, remote dashboards, and operational analytics. ATSCADA iEnergy Tools supports: Real-time energy monitoring Historical data logging MySQL integration Reporting and Excel export Remote SCADA dashboards Cloud-based monitoring systems I think this type of solution is practical for factories, power monitoring applications, building management systems, and other industrial automation projects where energy optimization is becoming increasingly important. Industrial automation is clearly moving toward web-based and cloud-connected SCADA platforms, especially as more facilities focus on digital transformation and smarter energy management
Last updated: 2026-05-26

Post by abinvest579 on TCP Client ^{CODESYS Forge talk (Post)}
Hi All, I am using codesys based plc to read and control magna power DC supply over LXI protocol using SCPI command. To connect device required socket programming for that i am using Net base service library function block TCP_Client to establish connection over TCP/IP , TCP_Write to write SCPI commands and TCP_Read to read data from Magna power DC supply. I have attached screenshot for logic developed. I am able to connect and write commands to device but i not receiving any information from device. For writing Commands i also tried various end of line character like \n,<nl>, A, D, 10, 13, 0x0A, 0x0D but not received any status from device. For testing purpose i am using simple command '*IDN?' to read data. Also if tried to check on hercules software what data actually plc read, first it read correct data after that is read wrong data as see in screen shot. 'Hello World' was correct read and after that Codesys in replaced with 'Codesysorld' that is not correct way. Same issue also appeared for send data. Any one have face same issue how i can read data directly from device correctly and send data please suggest solution on this.</nl>
Last updated: 2024-07-01

Post by bruceae on Allen Bradley to Codesys conversion ^{CODESYS Forge talk (Post)}
Hello Everyone, I was hoping to get some assistance or general directions on the codesys equivalent of some Studio 5000 commands and data types; Data Types; SCK_TCP Commands; CPS
Last updated: 2025-08-08

CSV_Write_read: a sample program for the CODESYS Control WinV3 writing and reading 1000 records of CSV data in a file ... ^{CODESYS Forge talk (Thread)}
CSV_Write_read: a sample program for the CODESYS Control WinV3 writing and reading 1000 records of CSV data in a file ...
Last updated: 2023-08-08

Using CoDeSys on Raspberry Pi to poll ModbusTCP slave data, and uplink by using LoRaWAN ATIM ACW-XB ^{CODESYS Forge talk (Thread)}
Using CoDeSys on Raspberry Pi to poll ModbusTCP slave data, and uplink by using LoRaWAN ATIM ACW-XB
Last updated: 2019-01-08

How to transfer data from DINT to Union(16 Bools) which I need to use in Few FBs ^{CODESYS Forge talk (Thread)}
How to transfer data from DINT to Union(16 Bools) which I need to use in Few FBs
Last updated: 2023-12-14

Post by irshad01 on data area too large ^{CODESYS Forge talk (Post)}
Hi I have a problem regarding the codesys 2.3 software. How can I run into simulation mood if it say that data area too large when login. How do I resolve this issue
Last updated: 2024-01-17

Post by reinier-geers on Data to server ^{CODESYS Forge talk (Post)}
HI, i want to copy data to a server of a costumor. Whats the easy way ? contoller is V20p5 but also 2 are V9.2
Last updated: 2025-11-11

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