CODESYS control for Raspberry Pi 64 SL errors ^{CODESYS Forge talk (Thread)}
CODESYS control for Raspberry Pi 64 SL errors
Last updated: 2024-05-03

How to sort JSON object in codesys ^{CODESYS Forge talk (Thread)}
How to sort JSON object in codesys
Last updated: 2024-05-08

i can't declear the address in GVL - codesys SP19 Patch5 ^{CODESYS Forge talk (Thread)}
i can't declear the address in GVL - codesys SP19 Patch5
Last updated: 2024-05-13

Ethercat bus on Beckhoff CX with Codesys for Linux ^{CODESYS Forge talk (Thread)}
Ethercat bus on Beckhoff CX with Codesys for Linux
Last updated: 2024-05-13

CODESYS Development System V3 ( 3.5.19.70 ) on Windows Virtual Machine ^{CODESYS Forge talk (Thread)}
CODESYS Development System V3 ( 3.5.19.70 ) on Windows Virtual Machine
Last updated: 2024-05-14

CODESYS Development System V3 ( 3.5.19.70 ) on Windows Virtual Machine ^{CODESYS Forge talk (Thread)}
CODESYS Development System V3 ( 3.5.19.70 ) on Windows Virtual Machine
Last updated: 2024-05-15

Any guides on using Codesys containers in Docker? ^{CODESYS Forge talk (Thread)}
Any guides on using Codesys containers in Docker?
Last updated: 2024-05-19

Help with IFM EcomatController CR710S in Codesys ^{CODESYS Forge talk (Thread)}
Help with IFM EcomatController CR710S in Codesys
Last updated: 2024-06-04

CODESYS Control Raspberry Pi mit Servotreiber T6 von StepperOnline ^{CODESYS Forge talk (Thread)}
CODESYS Control Raspberry Pi mit Servotreiber T6 von StepperOnline
Last updated: 2024-06-06

Licensing info not available (WAGO PFC200 + Codesys V3) ^{CODESYS Forge talk (Thread)}
Licensing info not available (WAGO PFC200 + Codesys V3)
Last updated: 2024-06-10

Codesys access to DICTIONARY OBJECTS of ethercat (CoE ) Servo Drive ^{CODESYS Forge talk (Thread)}
Codesys access to DICTIONARY OBJECTS of ethercat (CoE ) Servo Drive
Last updated: 2024-06-19

Codesys access to DICTIONARY OBJECTS of ethercat (CoE ) Servo Drive ^{CODESYS Forge talk (Thread)}
Codesys access to DICTIONARY OBJECTS of ethercat (CoE ) Servo Drive
Last updated: 2024-06-19

License Reset Request – CODESYS Control Win V3 Standard L ^{CODESYS Forge talk (Thread)}
License Reset Request – CODESYS Control Win V3 Standard L
Last updated: 2025-10-23

EL6910 as a PROFIsafe F-Host in Codesys ^{CODESYS Forge talk (Thread)}
EL6910 as a PROFIsafe F-Host in Codesys
Last updated: 2025-10-23

Codesys IDE initialization error from a new Sandbox image ^{CODESYS Forge talk (Thread)}
Codesys IDE initialization error from a new Sandbox image
Last updated: 6 days ago

How to use MQTT in CODESYS Control Win V3 ^{CODESYS Forge talk (Thread)}
How to use MQTT in CODESYS Control Win V3
Last updated: 2 days ago

Opc UA Data Source Client Browse Error in Codesys HMI ^{CODESYS Forge talk (Thread)}
Opc UA Data Source Client Browse Error in Codesys HMI
Last updated: 2025-11-17

'keep last value' option in CODESYS EtherCAT ^{CODESYS Forge talk (Thread)}
'keep last value' option in CODESYS EtherCAT
Last updated: 2025-11-18

Error while using Codesys SP19 Patch 4 on Windows 11 ^{CODESYS Forge talk (Thread)}
Error while using Codesys SP19 Patch 4 on Windows 11
Last updated: 2025-11-27

Non-formal invocation of function blocks in CODESYS ^{CODESYS Forge talk (Thread)}
Non-formal invocation of function blocks in CODESYS
Last updated: 7 days ago

Non-formal invocation of function blocks in CODESYS ^{CODESYS Forge talk (Thread)}
Non-formal invocation of function blocks in CODESYS
Last updated: 6 days ago

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

communication ^{CODESYS Forge talk (Thread)}
communication
Last updated: 2023-08-19

NETVAR_UDP ^{CODESYS Forge talk (Thread)}
NETVAR_UDP
Last updated: 2023-08-29

VPN ^{CODESYS Forge talk (Thread)}
VPN
Last updated: 2023-09-06

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