PLC Debugging - References - PLC Debug - Documentation for all plc debugging apax packages. - PLC Debugging,

PLC Debug CLI Tools

Portfolio
SIMATIC AX
Product
PLC Debug
Software version
1.1.2
Edition
08/2025
Language
English (original)
Package Name
@ax/plc-debugging-docs

This page presents all the information you need about our debugger CLI tools. We recommend that beginners use these features in the SIMATIC AX Code IDE. To learn how to do this, see AX Code > Debugging on PLC. Continue on this page if you want to learn more about the CLIs and the additional functionality they provide.

WARNING

All online-related functionalities (such as mon/mod/sdb) can prolong the cycle time and/or communication time of a PLC and therefore may cause serious damage to property or injury to persons if malfunctions or program errors occur.

Make sure that no dangerous situations can arise before you use these functionalities.

After updating to a new version, recompile and download your project before using debugging tools (mon/mod/sdb).

You can create your own tools around our CLIs or just run them from the terminal if you are more of a text-based user.
Our tools all have different use cases and can be used in different situations.
Here is a quick overview: