Post by dnordenberg on BOOL variable in OPC UA and modbus simultaneously ^{CODESYS Forge talk (Post)}
How can I have an BOOL variable that is read/write in both modbus TCP server and from OPC UA at the same time? Variables with %MX.n %QX.n addressing which is used for BOOL/coils in modbus server is not allowed in OPC UA symbol list on Schneider M251 controllers. I have already asked on Schneiders forum but there are not a lot of codesys experts over there :( So OPC symbols can't have a address and the modbus TCP server needs a address. So how should I do it then? It seems like an impossible combination. Since I want read/write access from both ways I can't just simply make a second variable and assign it the value of another since it would be a one way assignment. I also tried using VAR_CONFIG which then makes the address syntax %Q or %M in my main variable list and that fools OPC UA Symbol Configuration to allow it and then I add the complete %MX.n address of it in the VAR_CONFIG list. This semi works, I can toggle the BOOL from modbus but the OPC UA symbol seems to be read only. It displays symbol status but nothing happens when I toogle it. I think I need another way to have the variables and symbols pointing to the same bits in memory... My plan B is to write a BOOL array compare FB that saves a history bit from previous cycle and if that does not match current status at next cycle for either the OPC symbol or the modbus variable then it copies the new status over to the other. Maybe ugly but it's like my last alternative. Kind regards David
Last updated: 2025-07-14

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Last updated: 2024-10-26

Post by micik on CAA File, how to check whether file exists or not ^{CODESYS Forge talk (Post)}
Hello, what would be the most efficient way to check whether the file exists or not. I don't want to use file.Open function, it seems like rather inefficiet operaton. I considered GetAttribute function, but this function doesn't accept filename (with path) as an input. Basically I need to check first time when program is loaded to the runtime i.e. when application is started for the first time, whether a file exists on the specific location or not.
Last updated: 2024-05-16

Post by charleskentyfz on (no subject) ^{CODESYS Forge talk (Post)}
I have created an EtherCAT slave code and fixed two slaves (IDs written in the 0xF050 object dictionary). The module IDs are 0x1 and 0x101, respectively. It can be scanned normally in TwinCAT, but when scanning in CODESYS, it reports an error. Why is this happening？text in the second pic means 'device cannot be found in repository'
Last updated: 2024-07-07

Post by mubeta on UNION statement is not supported in the ethercat data exchange ^{CODESYS Forge talk (Post)}
Hi all, I am using a unionn statement for merge in integer data type some values that are received in byte from the i/o cards, but, using this simple and light technique, is not recognized by the ethercat data exchange and in fact the tags are not updated. In my opinion it's a very big bug.
Last updated: 2025-02-05

Post by gatto on variables between two applications ^{CODESYS Forge talk (Post)}
Hello, I'm experimenting with two applications. I was able to start stop applications with the CmpApp library. Currently in my test the variables declared in the first application are not visible and writable in the second. I ask if there is the possibility of having variables that are visible both in the first application and in the second.
Last updated: 2024-06-22

Post by gatto on variables between two applications ^{CODESYS Forge talk (Post)}
No. As you can see in the uploaded image, in my test project, I have a variable list GVL_1 which is located in appication_1. But if I write in POU_2, which is instead found in application 2, I cannot find the variables of GVL_1. it seems that the GVLs are children of each app
Last updated: 2024-06-24

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Last updated: 2024-10-26

Post by riccardo on VisuElems.CurrentUserGroupId is not stable ^{CODESYS Forge talk (Post)}
Goodmorning TimvH, Thanks for the reply. I don't know if your solution solve my trouble yet, I am going to see the link you sent me. In the mean time I try to explane better what I need to do. I have a turbine system that get in alarm under some condition (E.g low speed of turbine) and block the itself. When the system is stoped there is no speed turbine and the system cannot start. To give to the operetor the possibility to bypass the alarms, there is an acknoledgement alarm pushbutton. This bypass must not work for everyone but only for those client that perform the login by (User Management). Furthermore, if the user perform the (manual or automatic) logout in alarm conditions, the acknowlegment must be annulled and block the system again. To do this, I need to know if an operator is logged in the page and is working to fix the problem; otherwise the syste must autoturn off again. Now I go to study your solution, if I have explaned better and you have another idea tell me please.
Last updated: 2023-11-16

Post by mecmag on gear over gear (2 masters,1 slave) - how to do it? ^{CODESYS Forge talk (Post)}
Hello, i need to create an application that uses 2 masters, with 2 different ratios, and it outputs in one single slave. I explain better: Imagine axis A, B and C. -Axis A is the slave. -Axis B is master of A, with a specific ratio. -Axis C is master of A, with a specific ratio. the result motion from B and C should be executed by A, proportionally in position and ratios from B and C. With standard softmotion libraries (MC_...) it is not possible (i couldn't) because it is allowed only one master with its ratio. I have made a similiar application in past, using MoveOverGear in order to synch gears before engage. Instead this time, i need to do a gear over gear application, using 2 different masters. The position have to be the sum of both masters (considering their ratios). Any clue about how to do it? Or were to find some FB that can do it?
Last updated: 2024-08-16

Post by ruobian on Analog Input Delay Timer ^{CODESYS Forge talk (Post)}
Hello there, I am new here and in programming. I need help with the basics. I am trying to do what I mentioned in the title. I have an analog input. So I have a real or integer data type value. I want to delay it. TON and TOF only work with bool. I think there is a function block that has two inputs, 1 for real or int and 1 for bool. And if bool is true, it will give the output as real or int. I don't know but I need something like this. Actually, it is not exactly like that. In other words, it will not show the real value at the input at the output after a certain period of time. I want it to show the real value from 2 seconds ago continuously. The purpose of doing this is to compare the real value I received with the value from 2 seconds ago and find out whether it went up or down. I am using only FBD. Please help me with this. Thanks in advance.
Last updated: 2024-08-20

Post by kurtk on dynamic modbus devices ^{CODESYS Forge talk (Post)}
I am CODESYS neophyte getting my wheels on. My goal is to re-platform an existing PLC application written in 61131 ST I've got the majority of the code/variables in a compilable form - excluding all the IO and comms nuances I am not sure whether this the right forum An important functionality which I implemented on the other platform was totally dynamic modbus devices... Most configurations I have come across impose static MB configs in which all configured devices MUST be present and functional... I have monkeyed around with MB enough to know that herding a half dozen MB cats into a working config can be tricky. I just do them one at a time and dynamically turn them on/off in whatever combination is convenient with ID, IP, baud, parity etc being runtime tweakable. I am totally curious whether this is possible with codesys, or whether its device configuration corrals one into a static cage which requires re-building the code to support flexible variations. Best regards
Last updated: 2025-08-19

Post by kurtk on runtime dynamic modbus devices ^{CODESYS Forge talk (Post)}
I am CODESYS neophyte getting my wheels on. My goal is to re-platform an existing PLC application written in 61131 ST I've got the majority of the code/variables in a compilable form - excluding all the IO and comms nuances I am not sure whether this the right forum An important functionality which I implemented on the other platform was totally dynamic modbus devices... Most configurations I have come across impose static MB configs in which all configured devices MUST be present and functional... I have monkeyed around with MB enough to know that herding a half dozen MB cats into a working config can be tricky. I just do them one at a time and dynamically turn them on/off in whatever combination is convenient with ID, IP, baud, parity etc being runtime tweakable. I am totally curious whether this is possible with codesys, or whether its device configuration corrals one into a static cage which requires re-building the code to support flexible variations. Best regards
Last updated: 2025-08-19

Post by sushela on Temu Coupons for returning customers acq615756 ^{CODESYS Forge talk (Post)}
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Last updated: 2024-10-26

Post by westcountryewe on Displaying a Target Web Page on WebVisu ^{CODESYS Forge talk (Post)}
I have a main PLC with my CODESYS project on, including Web Visu. I also have a second device used for pump monitoring, all of this is displayed on a seperate HMI. I am looking at displaying the pump monitoring HMI on WebVisu so that I can solely use 1 HMI rather than having two. I can project the pump monitoring HMI into Chrome, and log in and it works fine. When I'm using the Web Browser element in Web Visu, enter my URL (device IP) it shows me the web page, but doesn't show me all of it. It uses parts of JavaScript for the login authenticiation and various other widgets. Similarly, I cannot get Youtube or Google to display on WebVisu either (possibily because of the same reason). Does anybody have any tips on how I can display the likes of Youtube or Google onto WebVisu so I can view it on my 7inch HMI (I suspect that if I can get Youtube or Google to work, then I will also be able to get my pump montitoring web page to work too).
Last updated: 2025-07-09

Post by fredsta on Unable to load dynamic modules (Download failed: Application=Application) ^{CODESYS Forge talk (Post)}
Hey there, I am currently trying to find a good solution for the communication between CODESYS Control on Raspberry Pi and "the rest of the world", i. e. the things apart from CODESYS on my linux. My first approach was to use the c-integration. So I created a lib, defined extern fbs, compiled the code on my Pi using the SDK and put the .so into my lib project. When I try to log into the Pi and load the program, I get the error message which you can see in the attached picture. "Die dynamischen Module der C-Integration konnten nicht auf das Laufzeitsystem geladen werden" is german and means roughly "the modules from the c-integration could not be loaded onto the runtime system." Is this normal? Am I doing something wrong? I will have a look at the unix domain socket thing next, as I am still in the process of finding the best solution for the communication.
Last updated: 2024-02-15

Post by tim-roelant on Profinet fault with codesys control V3 - Receive packet error ^{CODESYS Forge talk (Post)}
I have set up a brandnew Beckhoff panel pc with a codesys control runtime V3. I configured it together with 2 profinet field devices: a 16in/16out IO module from Turck and an MTS linear encoder. The machine works fine untill all of a sudden the communication breaks and the profinet participants become unreachable. At that point I can still ping the device, but the profinet master does not find them anymore: When i do a scan they are not found. When i do a cold restart, the profinet master becomes active again and the devices are found again. In the log i get Ethercat packet receive error: sysethernet. I am a little confused, there is no ethercat device in the device tree. I already set the send clock and the reduction ratio to higher values, but without result. Can codesys be configured, so that the communication re-establishes without doing the cold reset? This is very annoying and is causing a lot of prodution losses. regards Tim
Last updated: 2024-02-27

Post by tim-roelant on Profinet fault with codesys control V3 - Receive packet error ^{CODESYS Forge talk (Post)}
I have set up a brandnew Beckhoff panel pc with a codesys control runtime V3. I configured it together with 2 profinet field devices: a 16in/16out IO module from Turck and an MTS linear encoder. The machine works fine untill all of a sudden the communication breaks and the profinet participants become unreachable. At that point I can still ping the device, but the profinet master does not find them anymore: When i do a scan they are not found. When i do a cold restart, the profinet master becomes active again and the devices are found again. In the log i get Ethercat packet receive error: sysethernet. I am a little confused, there is no ethercat device in the device tree. I already set the send clock and the reduction ratio to higher values, but without result. Can codesys be configured, so that the communication re-establishes without doing the cold reset? This is very annoying and is causing a lot of prodution losses. regards Tim
Last updated: 2024-02-27

Post by tim-roelant on Profinet fault with codesys control V3 - Receive packet error ^{CODESYS Forge talk (Post)}
I have set up a brandnew Beckhoff panel pc with a codesys control runtime V3. I configured it together with 2 profinet field devices: a 16in/16out IO module from Turck and an MTS linear encoder. The machine works fine untill all of a sudden the communication breaks and the profinet participants become unreachable. At that point I can still ping the device, but the profinet master does not find them anymore: When i do a scan they are not found. When i do a cold restart, the profinet master becomes active again and the devices are found again. In the log i get Ethercat packet receive error: sysethernet. I am a little confused, there is no ethercat device in the device tree. I already set the send clock and the reduction ratio to higher values, but without result. Can codesys be configured, so that the communication re-establishes without doing the cold reset? This is very annoying and is causing a lot of prodution losses. regards Tim
Last updated: 2024-02-27

Post by tim-roelant on Profinet fault with codesys control V3 - Receive packet error ^{CODESYS Forge talk (Post)}
I have set up a brandnew Beckhoff panel pc with a codesys control runtime V3. I configured it together with 2 profinet field devices: a 16in/16out IO module from Turck and an MTS linear encoder. The machine works fine untill all of a sudden the communication breaks and the profinet participants become unreachable. At that point I can still ping the device, but the profinet master does not find them anymore: When i do a scan they are not found. When i do a cold restart, the profinet master becomes active again and the devices are found again. In the log i get Ethercat packet receive error: sysethernet. I am a little confused, there is no ethercat device in the device tree. I already set the send clock and the reduction ratio to higher values, but without result. Can codesys be configured, so that the communication re-establishes without doing the cold reset? This is very annoying and is causing a lot of prodution losses. regards Tim
Last updated: 2024-02-27

Post by spiessli on Raspberry Pi 4 with Legacy Drivers and Codesys 3.5.19 Patch 4 ^{CODESYS Forge talk (Post)}
Hi, I wanted to use the Adafruit Hat for the Raspberry and get acquainted with Softmotion using servos for RC models. This did work great with Codesys 3.5.19 Patch 1, but with Patch 4 and 5 i get errors. I suspect changes in the SoftMotion library have broken dependencies in the legacy drivers, might that be true? Thanks for any hint, spiessli Here the error log: ------ Übersetzungslauf gestartet: Applikation: Device.Application ------- Code typisieren... Code erzeugen... [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0032: Typ 'Unbekannter Typ: 'ConfigGetParameterValueLREAL(pParam, 0)'' kann nicht in Typ 'LREAL' konvertiert werden [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0046: Bezeichner 'ConfigGetParameterValueLREAL' nicht definiert [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0035: Programmname, Funktion oder Funktionsbausteinstanz an Stelle von 'ConfigGetParameterValueLREAL' erwartet [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0032: Typ 'Unbekannter Typ: 'ConfigGetParameterValueLREAL(pParam, 0)'' kann nicht in Typ 'LREAL' konvertiert werden [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0046: Bezeichner 'ConfigGetParameterValueLREAL' nicht definiert [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0035: Programmname, Funktion oder Funktionsbausteinstanz an Stelle von 'ConfigGetParameterValueLREAL' erwartet [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0032: Typ 'Unbekannter Typ: 'ConfigGetParameterValueLREAL(pParam, 0)'' kann nicht in Typ 'LREAL' konvertiert werden [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0046: Bezeichner 'ConfigGetParameterValueLREAL' nicht definiert [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0035: Programmname, Funktion oder Funktionsbausteinstanz an Stelle von 'ConfigGetParameterValueLREAL' erwartet [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0032: Typ 'Unbekannter Typ: 'ConfigGetParameterValueLREAL(pParam, 0)'' kann nicht in Typ 'LREAL' konvertiert werden [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0046: Bezeichner 'ConfigGetParameterValueLREAL' nicht definiert [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0035: Programmname, Funktion oder Funktionsbausteinstanz an Stelle von 'ConfigGetParameterValueLREAL' erwartet [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0032: Typ 'Unbekannter Typ: 'ConfigGetParameterValueLREAL(pParam, 0)'' kann nicht in Typ 'LREAL' konvertiert werden [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0046: Bezeichner 'ConfigGetParameterValueLREAL' nicht definiert [FEHLER] sm3_drive_servo, 4.6.0.0 (3s - smart software solutions gmbh): GetStandardConfigParams AXIS_REF_SERVO: C0035: Programmname, Funktion oder Funktionsbausteinstanz an Stelle von 'ConfigGetParameterValueLREAL' erwartet Übersetzung abgeschlossen -- 15 Fehler, 0 Warnungen : Kein Download möglich
Last updated: 2023-12-19

Post by automa on Defining local variables that can be independent with several users. ^{CODESYS Forge talk (Post)}
Hi, I am looking for a way to define a local variable that will be multi user independent. This is so several user can connect at the same time select frames independent of each other.
Last updated: 2023-09-04

Post by danwoodlock on RPI Zero w - Edge gateway cant install ^{CODESYS Forge talk (Post)}
I believe the reason that I eventually lose my ability connect is because of exceeding the time limit for demo mode. Still unsure why I cannot update the edge gateway though.
Last updated: 2023-09-13

Post by mmpl on Array to String ^{CODESYS Forge talk (Post)}
Hi Thank you for you reply. Yes I can concatenat longer string. I am using string_Util_Intern libraray for concat. The issue is abot plc performance. It takes 7 second. I am looking to improve time.
Last updated: 2024-07-23

Post by murdemon on CNC Jumps G20 - SMC_NCInterpreter and long time to process ^{CODESYS Forge talk (Post)}
N10 G01 X100 Y100 F100 N20 G00 X300 Y100 F100 N30 G00 X300 Y300 F100 N40 G00 X100 Y300 F100 N50 G00 X100 Y100 F100 + $R1$ N60 G75 N70 G20 L10 N100 M30
Last updated: 2024-08-03

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