Post by mp9876 on Problem using MeasureFrequence FB ^{CODESYS Forge talk (Post)}
Hi everyone, new at Codesys and PLC programming in general. I am using Codesys Win V3.5 SP20 I would like to measure an encoder's frequency output (obtaining that pulse train from Factory IO) and intended to use the MeasureFrequence FB (Intern/CAA/Utilities/CAA Mathematics/3.5.19.0). As mentioned in the title what I need to measure is low frequency, such as lower than 40hz (a cycle every 25mS) or so; I could even go lower frequency if required as this is for test purposes) therefore I am not expecting problem measuring a low frequency with that FB The library in question appears to be installed as I can retrieve it from the Library Repository. I can also see it from the Device's Library Manager. Problem arises when I am trying to instantiate this particular FB. I go like this: VAR MeasF:MeasureFrequence; END_VAR Please note that as soon as I start typing the "MeasureFrequence", the MeasureFrequence comes out as a viable option in auto-typing; seems to indicate that the FB is recognized somehow. But there is no way I can compile this as it comes back with the following: C0046: Identifier 'MeasureFrequence' not defined. Tried to rename that to ABC instead of MeasF; same issue. Possibly that the library is not properly installed ? Placeholder ? I would greatly appreciate a bit of guidance if possible. Thank you and regards, Mike
Last updated: 2024-06-24

Post by c3po on Wago PLC Disable Device Login ^{CODESYS Forge talk (Post)}
is there also a possibility to deactivate the login screen from the Hmi if you transfered a new project? I send the screen as attachment:
Last updated: 2024-10-09

Post by vkira on Radio module on wago 750-8217 ^{CODESYS Forge talk (Post)}
Hello. Tell me how to connect to the internal radio module PLC 750-8217. I use the gsm sms_01 library. I don't understand how to connect. via com port? what's the address?
Last updated: 2024-05-06

Post by hfelek on TargetVisu for Linux Package on runtime 4.12.0.0 install error due to Qt dependencies. ^{CODESYS Forge talk (Post)}
Hi, I am trying to make my runtime support TargetViso on 4.12.0.0 runtime. First when I tried to install package I got error due to missing libraries that are generated through qt-base. After compiling and installing related qt lib when I tried to install the package, I didnt get lib dependencies error but I got another error: [ERROR] The installed QT Version does not meet the minimum required version 6.4.2. Please install version 6.4.2 or higher and try again. When I check Qt version I get the following response QMake version 3.1 Using Qt version 6.5.0 in /usr/local/qt6/lib. I tried with Qt version 6.9.0 but that didn't help. Any idea on what coudl be the reason. When I looked for codesys related processes the related libraries were included within environment.
Last updated: 2024-08-27

Post by george32 on Readable IO names ^{CODESYS Forge talk (Post)}
Hello Folks, I have a quite basic understanding of how PLC programming works. However I keep getting stuck on 1 problem I could not get my head around. The problem is as follow: I have a PLC with 60 IO (20 inputs, 40 outputs). Each IO is defined as a function block. Furthermore I have an external IO card connected trough a CanBus connection. This IO card has 4 analog input channels (USINT), 4 digital inputs (Bool) and 4, digital outputs (Bool) Because I have 2 different components which both has data have I made 4 arrays to store the data off every component in one variable. PLC_Input: Array [1..20] of BOOL; PLC_Output: Array [1..40] of BOOL IOCard_Input: Array [1..8] of BOOL IOCard_Output: Array [1..4] of BOOL Because the control and reading of the different in and outputs is done by a TCP connection I want to use some kind of enumeration or struct to give each index a name so that my main would be a little bit more readable instead of all the magic numbers. Also this would make my program more dynamic for the furter in case I need to changes some in the IO nummers. For example: pump is placed on the fysical terminal strip number place 54, which is the 3th output of the IO card in the program: if I am sending a message with value 54 I would like to control IOCard_Output[3]. If there is a solution or methode to get this done, I can eventually do the following in my main program: IOCard_Output[Pump]. I have tried the following: IOCard_Output[Pump - 51] with an enumration but this keeps raising an error I hope some of you could help me further with this problem. In gross lines: I want to couple all the different IO to a more readable name and this readable name should control the right Array index Thanks in advance, George
Last updated: 2024-09-26

Post by wbj0t on System libs and I/O Drivers ^{CODESYS Forge talk (Post)}
Hi everyone. My question about: where I can learn (read or watch) an info about codesys workflow through the system IO libs? I want to know how to implement I/O drivers by my self. In the system libs I see many interfaces, methods etc... But there is no explanation about them, just names of methods and fields of the FBs. I know about this page: https://forge.codesys.com/drv/io-drivers/doc/Generic/ There is so BIG the device description file and not so clear explaining of the attributes and elements, also some elements or attributes missed at it all. Yes, there are code examples on this page, but, so shortly and, for example, code about Modbus drivers is absent. And even if I try to add the IoDrvFB with lib, I get and error, something like: "failed to load IoDrvFB driver". And what about the book of codesys that written by Gary Pratt? Is there information about system libs and drivers in this book more clearly? Thank you :)
Last updated: 2024-02-02

Post by eschwellinger on Licensing info not available. ^{CODESYS Forge talk (Post)}
yes and no ... if you run the license server on the host (to serve licenses to the docker instances / vplcs then there is no runtime which could check the licenses on the host. Therefore you need the CODESYS WBM to activate or check the licenes or you could use in CODESYS IDE the licensemanager ( not the one for the device licenses) but you have the the IP of the license server that he know where to search for the licenses ..tool options i guess to add it, will add a screenshot later.
Last updated: 2025-10-01

Post by vernon-laurence on EtherCAT fieldbus ^{CODESYS Forge talk (Post)}
The simplest way to do this would be to add a bus coupler dedicated to the expansion IO. The EtherCAT network does not fault when modules connected to the expander are not present. In the image below, nothing below the red line is present in the network - with the network working correctly. In your "base" project, simply include all of the possible modules, and then plug them in as you add pumps to the system. I would also highly recommend against the use of direct addressing. There are other methods to accomplish this, including using the "Optional" checkbox for modules and explicitly addressing them. Although, this would require more upfront work to design the network, and some additional work each time modules were added. https://content.helpme-codesys.com/en/CODESYS%20EtherCAT/_ecat_edt_slave_slave.html
Last updated: 2024-04-09

Post by mondinmr on Direct Pointers in IOMapping for EtherCAT with IoDrvEthercatLib.ETCSlave_Dia ^{CODESYS Forge talk (Post)}
Using SDO, I can read the EtherCAT mappings and offsets from various registers like 0x1c12, 0x1c13, etc. When I obtain registers mapped in the PDOs and various offsets, I could technically access directly to the statusword, controlword, etc., if they are mapped. I have noticed that on IoDrvEthercatLib.ETCSlave_Diag I can find pointers to the input and output buffers. However, although the input buffer can be easily read by referring to what has been obtained from the SDOs, it is not possible to write to the output buffer, as it is overwritten in each cycle by the data from the IOMapping task. Is there a way, knowing an instance of IoDrvEthercatLib.ETCSlave_Diag, to obtain the pointer to the first data in the IOMapping? The offsets are identical to those of the PDOs, but obviously the data is a copy. For me, the cleanest thing would be to access the pointers on IOMapping, for DS402a devices to retrieve the key data and point them to internal references. I need to know this as, having developed our own motion library, I would like to simplify the initial setup by eliminating unnecessary and nonsensical mappings that can lead users to unnecessary errors. In the current version that we have been using for years, we have to map everything manually. I would like to pass only the slave reference to the FB_init constructors and eliminate the mapping.
Last updated: 2024-02-12

Post by smercante on Unable to Import PLC Open XML from Easy Remote IO ^{CODESYS Forge talk (Post)}
Hello dear. I have the same problem. Could you solve it? Do you use GLV variables?
Last updated: 2023-08-24

Post by gregor on PFC 200 - codesys V3.5 ^{CODESYS Forge talk (Post)}
As far as I know, only if someone downloaded sourcecode to the PLC.
Last updated: 2023-08-25

Post by megamax on Codesys + BeagleBone PLC +LED control ^{CODESYS Forge talk (Post)}
Hello! Did you ever solve this? I'm running into the exact same problem.
Last updated: 2024-08-12

Post by liamb on Unable to add alarm configuration object to project ^{CODESYS Forge talk (Post)}
Yep that was the case, PLC didn't support it.
Last updated: 2024-09-27

Post by eschwellinger on Update Raspberry Pi option is missing under Tools menu ^{CODESYS Forge talk (Post)}
The new Deploy Tool 4.14.0.0 contains all devices. Raspberry PI virtual plc etc.
Last updated: 2024-12-13

Post by nz-dave on Ethernet/IP Scanner Exception ^{CODESYS Forge talk (Post)}
Its Running on a Weintek CMT HMI. the program is not huge, just controlling a few pumps. plc is at 1%
Last updated: 2024-12-27

Post by runtimevictor on virtual plc vPLC configure nics ^{CODESYS Forge talk (Post)}
Hello @eschwellinger, I have tried version 4.13.0.0 and the same thing happens to me...
Last updated: 2025-02-03

Post by nz-dave on sysfile- transfer file to pc ^{CODESYS Forge talk (Post)}
worked around the issue- ftp client on plc, file sent through filezilla to PC.
Last updated: 2025-04-26

Post by eschwellinger on Codesys Virtual control SL ^{CODESYS Forge talk (Post)}
hm..please delpoy a virtual edgegateway beside the virtual control and use this as EdgeGateway to login to your virtual plc.
Last updated: 2025-08-08

Post by eschwellinger on Problem retain values Weidmuller UC20-WL2000 ^{CODESYS Forge talk (Post)}
I would recommend to check the plc log to have more detailed information.
Last updated: 2024-04-11

Post by eschwellinger on Licensing info not available. ^{CODESYS Forge talk (Post)}
we recommend to do it with the official virtual plc version..will send a version.
Last updated: 2024-05-23

Post by ppix on MQTT PLC Chat: ^{CODESYS Forge talk (Post)}
Did you ever find a solution to this? I am having the same issue but using TLS connection.
Last updated: 2024-05-26

Post by mos89p on Codesys Soft PLC OPC UA server ^{CODESYS Forge talk (Post)}
Hi did you check the log of OPCUA expert Client?
Last updated: 2024-06-27

Post by eschwellinger on Scan devices hangs CODESYS ^{CODESYS Forge talk (Post)}
If you use putty or any ssh client does this work to login to the plc?
Last updated: 2025-12-13

Post by haiderm on MultiTouch : Two fingers pinch to Z00M in/out and rotation gesture. ^{CODESYS Forge talk (Post)}
Hello, I am currently trying to implement the Pan gesture and if possible, also the spread-pinch gesture in my project. The Pan gesture seems to work. Was the spread pinch gesture in the meantime fully released, because i haven't been able to get it called? Best Regards, Michael
Last updated: 2024-08-02

Post by onstage on Unable to add EL6751 to Control RTE V3 on W11 IoT LTSC using Eng. V3.5 SP21 ^{CODESYS Forge talk (Post)}
I have working EtherCAT since it can be scanned for slaves, but then I'm stuck getting the information that the device isn't found in the repo. As far as I can see both revisions does however exist in the device repo. Component added in the Configfile. Anyone with some similar experiences?
Last updated: 2025-09-04

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