Reset of S7-300

Switch the CPU/FM to STOP mode as follows:

• Set the mode selector to STOP.

• If the mode selector is set to RUN-P, you can also set the CPU/FM to STOP mode using the menu command PLC > Diagnostics/Setting > Operating Mode. To do this, the S7 program must be selected in the online window of the project or in the "Accessible Nodes" window.

Select the menu command PLC > Diagnostics/Setting > Clear/Reset.

Confirm the memory reset in the dialog box which appears.