Table element issues ^{CODESYS Forge talk (Thread)}
Table element issues
Last updated: 2026-02-16

TextList name error (fake) ^{CODESYS Forge talk (Thread)}
TextList name error (fake)
Last updated: 2026-02-16

Post by ilya-vah on Table element issues ^{CODESYS Forge talk (Post)}
Hello, First post here. I would like to clarify whether the following behavior is known or if it is a bugs. Issue 1 — First row not displayed when using Maximum array index with 1-based arrays Description: When displaying data from an array that is indexed starting from 1 (e.g., ARRAY[1..N]), and the number of displayed rows is limited using the Maximum array index property, the first row of the array is not shown in the visualization. Steps to reproduce: Create an array indexed from 1 (e.g., ARRAY[1..N]). Bind the array to a Table element. Limit the number of displayed rows using the Maximum array index property. Run the visualization. Actual result: The first array element (index 1) is not displayed in the table. Issue 2 — Tooltip string placeholder cannot be bound to string variable from array Description: It is not possible to use a string placeholder in the tooltip that is bound to a string variable from the array. Steps to reproduce: Use a table bound to an array containing string variables. Configure a tooltip using a string placeholder referencing a string field from the array. Run the visualization. Actual result: Tooltip doesn't show any text. A test project demonstrating both issues is attached. Thank you for your time and support.
Last updated: 2026-02-16

Fail communication between CODESYS and Fuxa SCADA via OPC UA ^{CODESYS Forge talk (Thread)}
Fail communication between CODESYS and Fuxa SCADA via OPC UA
Last updated: 2026-02-16

Post by mohammedben on Fail communication between CODESYS and Fuxa SCADA via OPC UA ^{CODESYS Forge talk (Post)}
hi, When I try to establish communication between CODESYS and Fuxa SCADA via OPC UA, the connection fails, and I receive the following error: 2026-02-15T08:38:13.618Z [ERR] 'codesys' connect failure! Error: The connection may have been rejected by server, Err = (ClientTCP_transport6: socket has been disconnected by third party) 2026-02-15T08:38:13.619Z [ERR] 'codesys' try to connect error! Error: The connection may have been rejected by server, Err = (ClientTCP_transport6: socket has been disconnected by third party) 2026-02-15T08:38:13.622Z [ERR] 'codesys' connect error! undefined (1) Note that there are no problems when I establish communication with the UaExpert and OPC UA Client Simulator software. I also previously tried communicating with RapidSCADA and received the following error: Endpoint with the specified security options not found. And when I try to connect with "none" in the security policy, I get this error: BadSecureChannelClosed I have tried almost all the solutions available online and have not found a solution. I hope you can provide me with a solution that solves this problem. Thanks in advance
Last updated: 2026-02-16

Post by altin on No source code available for this object ^{CODESYS Forge talk (Post)}
Hello, I get same error message but pointing at different library. The error appears when im trying to scroll an AlarmTable on a thouch screen (ifm CR1204). Anyone knows what causing this and how to procceed? Many thanks in advance,
Last updated: 2026-02-16

No source code available for this object ^{CODESYS Forge talk (Thread)}
No source code available for this object
Last updated: 2026-02-16

Post by pernockham on Unable to deploy "Control for Linux SL 4.18.0.0" ^{CODESYS Forge talk (Post)}
Does this cover what you need?
Last updated: 2026-02-17

Post by pernockham on Unable to deploy "Control for Linux SL 4.18.0.0" ^{CODESYS Forge talk (Post)}
Am I alone in this? Is this a known fault? Should I look for the reason of the lacking update option for "Control for linux SL" in my system or is it a potential fault in the codesys system?
Last updated: 2026-02-17

Post by eschwellinger on Unable to deploy "Control for Linux SL 4.18.0.0" ^{CODESYS Forge talk (Post)}
we need the Systeminformation in the Communication tap(logged in)
Last updated: 2026-02-17

Post by pernockham on Unable to deploy "Control for Linux SL 4.18.0.0" ^{CODESYS Forge talk (Post)}
And the strange thing for me is that if i connect with an older IDE version (where I only have 4.17.0.0 installed) I can see both "CODESYS Control for Linux SL" and "CODESYS Edge Gateway for linux". And that I loose (both presence and possibility to update) the first option (Control SL) if i let the updater install "Control for linux SL" vers. 4.18.0.0 or later. (Note that runtime 4.17.0.0 is installed and it is running and I can login to that system, but no apparent option available to update it to 4.19.0.0). Attached print screen where I connected the "deploy sl tool" to the same system, where the upper (IDE) one has 4.19.0.0 installed, while the lower one has 4.17.0.0 installed..
Last updated: 2026-02-17

Power off bit to save last log ^{CODESYS Forge talk (Thread)}
Power off bit to save last log
Last updated: 2026-02-17

Post by reinier-geers on Power off bit to save last log ^{CODESYS Forge talk (Post)}
3.5.20.4 Is there a power off bit, so i can save my last logfile ?
Last updated: 2026-02-17

Post by eschwellinger on Unable to deploy "Control for Linux SL 4.18.0.0" ^{CODESYS Forge talk (Post)}
Hi could you check if this really exists in 4.19.0.0 deploy tool? In your case architecture is missing- see my configuration
Last updated: 2026-02-17

Post by pernockham on Unable to deploy "Control for Linux SL 4.18.0.0" ^{CODESYS Forge talk (Post)}
Correct, my Device architecture says "None" is this position. A missing config somewhere?
Last updated: 2026-02-18

Post by nehaltrivedi96 on Modbus connection via Qronox PCD3 M6893 ^{CODESYS Forge talk (Post)}
Hello, I am currently scaling 4-20mA signals and the scaled output (temperature) has to be sent via modbus protocol to a tool like doctor modbus or modbus poll. I have defined my inputs as real as and the output is also real, but to send this output via modbus it has to be of word. So how will i convert real into word and then send the generated output via modbus?
Last updated: 2026-02-18

Post by risele on Modbus connection via Qronox PCD3 M6893 ^{CODESYS Forge talk (Post)}
You are welcome. Also note, that it's valid only if you modbus-device use same real/float value representation (IEEE 754). That's true for most of systems. But some devices may have other representation, such as integer + position of the decimal point, for example 123.456 is integer = 123456 and position = 3 Also note, that, ones again, depending on endianess of each system, you may also need to swap not just words, but bytes. TYPE u_Real : UNION rVal:REAL; wVal:ARRAY[0..1] OF WORD; bVal:ARRAY[0..3] OF BYTE; dwVAL:DWORD; //same as previous, may be easier to specify the MB register END_UNION END_TYPE than swapping may be something as VAR A,B,C,D:BYTE; //Bytes of the real value uIn, uOut:u_Real; rVal:REAL; ModbusReg1,ModbusReg2:WORD; END_VAR uIn.rVal:=rVal; uOut.A:=uIn.D; uOut.B:=uIn.C; uOut.C:=uIn.B; uOut.D:=uIn.A; ModbusReg1:=uOut.wVal[0]; ModbusReg1:=uOut.wVal[2]; Or you even need to reorder bits... Ones again, sending float/real values is not defined by Modbus protocol itself, so it is hardware- and software-dependent. The Modbus Poll (and most of modbus tools) have configuration parameters that will properly swap bytes on their side. Ones again, that's very helpful: https://www.scadacore.com/tools/programming-calculators/online-hex-converter/
Last updated: 6 days ago

Post by risele on Modbus connection via Qronox PCD3 M6893 ^{CODESYS Forge talk (Post)}
First, if you don't need to change conversion rules in runtime, take a look at "Unit conversion" module (Application -> add object -> UnitConversion). You can specify there biderectional conversion with different units, limits and so on. Second, since MODBUS don't have "real" types but only general 16-bit registers and Real is 32-bit, generally you need a byte-was conversion Real <> two Words. Note, that depending on the devices on both sides, there are two options: Real-> Word1, Word2 or Real-> Word2, Word1, where Word1 is minor register in Modbus register pair and Word2 is major. You can use simple union: TYPE u_Real : UNION rVal:REAL; wVal:ARRAY[0..1] OF WORD; dwVAL:DWORD; //same as previous, may be easier to specify the MB register END_UNION END_TYPE and convert it as following: VAR myUnion:u_Real; rValue_TO_SEND:REAL; rValue_TO_GET:REAL; END_VAR myUnion.rVal:=rValue_TO_SEND; rValue_TO_GET:=myUnion.rVal; Note, that WORD-order should be properly set in MODBUS registers, otherwise you will get strange values. This tool is helpful: https://www.scadacore.com/tools/programming-calculators/online-hex-converter/ Alternative, you can use functions as REAL_TO_DW and DW_TO_REAL from OSCAT_BASIC, for example.
Last updated: 6 days ago

Post by nehaltrivedi96 on Modbus connection via Qronox PCD3 M6893 ^{CODESYS Forge talk (Post)}
Thank you for your suggestions, based on it I will modify the code
Last updated: 2026-02-18

Modbus connection via Qronox PCD3 M6893 ^{CODESYS Forge talk (Thread)}
Modbus connection via Qronox PCD3 M6893
Last updated: 6 days ago

Post by william on Unit testing support / libraries for EcoStruxure Machine Expert (CODESYS) ^{CODESYS Forge talk (Post)}
Hi, We are investigating available libraries and frameworks for automated PLC unit testing in Schneider EcoStruxure Machine Expert. Specifically, we are looking for: Assertion libraries or test frameworks compatible with Machine Expert CODESYS‑based solutions that are not TwinCAT‑specific Any official or community‑recommended approach for unit testing FB/FC logic offline We have found several open‑source examples, but many appear to be TwinCAT‑dependent and therefore not compatible. Are there any known libraries, best practices, or recommended approaches for implementing unit tests in Machine Expert? Thanks in advance.
Last updated: 6 days ago

Post by pernockham on Unable to deploy "Control for Linux SL 4.18.0.0" ^{CODESYS Forge talk (Post)}
Thanks! Out of office, will check on Monday.
Last updated: 6 days ago

Post by eschwellinger on Unable to deploy "Control for Linux SL 4.18.0.0" ^{CODESYS Forge talk (Post)}
can you please check this: https://content.helpme-codesys.com/en/CODESYS%20Control/_rtsl_toubleshooting_deploytool2.html#UUID-b83dc01e-8cff-c574-7efe-8615b95a51ed_section-idm234790234401598
Last updated: 6 days ago

Post by a-simone on Unable to install previously installed version ^{CODESYS Forge talk (Post)}
Same problem, someone solved it?
Last updated: 6 days ago

Unable to install previously installed version ^{CODESYS Forge talk (Thread)}
Unable to install previously installed version
Last updated: 6 days ago

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