SM Drive configuration error ^{CODESYS Forge talk (Thread)}
SM Drive configuration error
Last updated: 2022-12-30

RASPBERRY OPC CONFIGURATION ^{CODESYS Forge talk (Thread)}
RASPBERRY OPC CONFIGURATION
Last updated: 2019-07-03

task configuration ^{CODESYS Forge talk (Thread)}
task configuration
Last updated: 2014-02-20

hardware configuration ^{CODESYS Forge talk (Thread)}
hardware configuration
Last updated: 2012-03-03

Configuration hell ^{CODESYS Forge talk (Thread)}
Configuration hell
Last updated: 2022-09-02

WAGO - TASK CONFIGURATION ^{CODESYS Forge talk (Thread)}
WAGO - TASK CONFIGURATION
Last updated: 2018-11-26

Modbus TCP : Dynamic Configuration ^{CODESYS Forge talk (Thread)}
Modbus TCP : Dynamic Configuration
Last updated: 2020-03-06

Raspberry CODESYSControl.cfg & Webserver configuration. ^{CODESYS Forge talk (Thread)}
Raspberry CODESYSControl.cfg & Webserver configuration.
Last updated: 2018-11-19

Trends versus trace configuration ^{CODESYS Forge talk (Thread)}
Trends versus trace configuration
Last updated: 2020-10-05

Codesys device configuration ^{CODESYS Forge talk (Thread)}
Codesys device configuration
Last updated: 2023-12-30

Alarm Configuration Notification Action ^{CODESYS Forge talk (Thread)}
Alarm Configuration Notification Action
Last updated: 2024-05-14

MBTCP Slave configuration ^{CODESYS Forge talk (Thread)}
MBTCP Slave configuration
Last updated: 2024-06-19

EThercat Dynamic configuration ^{CODESYS Forge talk (Thread)}
EThercat Dynamic configuration
Last updated: 2025-11-25

Post by artplc on 3.5 P20 hangs - no response ^{CODESYS Forge talk (Post)}
Subject: Solution: CODESYS Freezes Linked to Large Symbol Configuration (OPC UA) Hello everyone, I was experiencing the same problem as many here: CODESYS (v3.5 SP20+) freezing during compilation and download, especially on projects that use OPC UA for SCADA. The only workaround was to run Build > Clean all before every download. I believe I have found the root cause and a permanent solution. The Problem: The issue is directly related to a large Symbol Configuration. In my project, I only need about 700 tags for OPC UA, but the Symbol Configuration list was showing over 250,000 tags. This is because it automatically includes all variables from Global Variable Lists (GVLs) and other memory areas. When any static variable is changed, the IDE tries to rebuild this enormous list, causing it to freeze for several minutes. The Solution: Instead of letting CODESYS export every variable by default, you can use a pragma to tell it which variables or GVLs to exclude from the symbol export process. Place the following pragma at the top of any GVL or data structure that you do not want to be part of the symbol configuration: 1 {attribute 'symbol' := 'none'} 2 VAR_GLOBAL 3 // All variables in this GVL will now be excluded from the 4 // Symbol Configuration by default. 5 InternalVariable1 : INT; 6 InternalVariable2 : BOOL; 7 END_VAR After adding this pragma to all the GVLs that were not needed for OPC UA, the number of tags in my Symbol Configuration dropped to the correct amount. The compilation and download process is now fast again, with no freezing. This method is much more efficient than manually managing the symbol list in the editor. I hope this helps others who are facing this frustrating issue. Best regards.
Last updated: 2025-08-10

Removing a symbol from the IEC Symbols Editor grid ^{CODESYS Forge talk (Thread)}
Removing a symbol from the IEC Symbols Editor grid
Last updated: 2025-02-13

Enum with textlist support shows only one symbol ^{CODESYS Forge talk (Thread)}
Enum with textlist support shows only one symbol
Last updated: 2022-12-15

Converting Variable Symbol name in a STRING ^{CODESYS Forge talk (Thread)}
Converting Variable Symbol name in a STRING
Last updated: 2008-12-09

Can not see symbol file on PLC ^{CODESYS Forge talk (Thread)}
Can not see symbol file on PLC
Last updated: 2014-11-06

Celsius symbol in the "text" field of visualization element ^{CODESYS Forge talk (Thread)}
Celsius symbol in the "text" field of visualization element
Last updated: 2012-01-24

Unbekanntes Symbol in der Netzwerk Darstellung in Codesys ^{CODESYS Forge talk (Thread)}
Unbekanntes Symbol in der Netzwerk Darstellung in Codesys
Last updated: 2011-06-28

Lookup Symbol Name from pointer address? ^{CODESYS Forge talk (Thread)}
Lookup Symbol Name from pointer address?
Last updated: 2012-10-04

Scripting access rights to OPC Symbol Set? ^{CODESYS Forge talk (Thread)}
Scripting access rights to OPC Symbol Set?
Last updated: 2023-03-15

2.3 Symbol File in 3.5 OPC Configurator ^{CODESYS Forge talk (Thread)}
2.3 Symbol File in 3.5 OPC Configurator
Last updated: 2017-02-28

Post by dogulas on Removing a symbol from the IEC Symbols Editor grid ^{CODESYS Forge talk (Post)}
In the CODESYS IDE I have several symbols defined and I have IEC Symbol Publishing installed. On the IEC Symbol Publishing window and under the IEC Symbols Editor tab, I have dragged symbols from the tree on the left to the grid on the right. All this works fine. Now I want to remove one of the symbols from the grid on the right and I cannot see any way to do this. How can I remove a symbol from the grid on the right once I've added it?
Last updated: 2025-02-07

Post by saugat10 on Cannot find existing placeholder ^{CODESYS Forge talk (Post)}
I have installed a library VisuUtils. As you can see in the picture it cannot find the reference to System_VisuElemBase though it is indeed present. How can i resolve this issue?
Last updated: 2024-04-08

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