The Software Loader takes the output from the ST Compiler (stc) command line tool in the form of a SIMATIC app file (built for target 1500) as input. This app file is then downloaded to a SIMATIC S7-1500 PLC.
The tool provides advanced download techniques, such as delta-download in RUN or STOP mode, if you apply the option --mode Delta.
It is important to note that the "download in run" method adds additional safety risks and must be used with special care. In other modes, the PLC is in STOP state, ensuring a safe state for your machine.
Note
Review the notes and restrictions for download in run carefully.
Each download automatically cancels all active monitor and debug jobs running on the PLC.
Additionally, the Software Loader supports full access to the SD card of a SIMATIC PLC from remote. Details can be found here.