FAQ

This section provides answers to frequently asked questions about logi.CAD 3:

• FAQ: Basic items

  • How do I activate licenses for the development environment?

  • How do I change the language for the user interface?

  • Are my projects upwards and downwards compatible?

  • Is the IDE affected by the Log4j security vulnerability (December 2021, CVE-2021-44228, Log4Shell)

  • What to observe, if a project has been changed from the outside?

  • Can I use the development environment via remote desktop?

  • Which target systems are supported?

  • Why do I need JRE?

  • Links within documentation not jumping to correct position within an article. Why?

• FAQ: How to accelerate my work in the development environment?

  • I am viewing an ST-element. How to go quickly to its declaration? How to find all its references?

  • How to quickly enter ST-code?

  • Can I have certain code snippets ready to be inserted?

  • How to change position in ST-editor?

  • Can I increase the performance when saving the FBD-editor?

  • Where to quickly find a certain command?

  • Are there keyboard shortcuts? Which ones?

  • Can I have the menus displayed by keyboard?

• FAQ on ST

  • When to use a formal call? When to use a non-formal call?

  • How can I access single characters of a STRING variable declared as ARRAY?

  • How to create a tooltip for the documentation of an ST-element?

  • How to restore deleted lines in the ST-object? How to revert to the original code of changed lines?

  • How is the RETAIN keyword considered for function block instances?

  • How to assign the minimum or maximum value of a data type?

  • How to remove the error icon for correct ST-code?

• FAQ on loading/testing the application

  • When is the application loaded onto PLC out-of-date?

  • When is the fingerprint for an application not changed and when is it changed?

  • Can the loading of the application onto the PLC be time-limited?

  • When to update the version of the runtime system on the PLC?

• More FAQs

  • In case of nested string blocks: How can the return value be entirely mapped ?

  • Which features are provided for logi.RTS?

  • Can traces of the runtime system be logged in the syslog of the target system?

  • Can I configure the execution of an application (the executed cycles)?

  • File RTSCode.so is missing. What must I do?

  • Why is the Telnet interface of the runtime system deactivated?

  • Why can I delete system blocks?

  • How can I start the explorer of the operating system from within the development environment?

  • A selection frame within the FBD-editor is visible, nothing is selected. What to do?

  • May I comment my C-code?

  • How to use the search functionalitaty in the online-version of the user documentation?

logi.cals advises you to check this section regularly as the list is going to be expanded as the need arises. If you cannot find the requested information in this user documentation at all, contact the support team of logi.cals.