The following table shows the position of the switch and the corresponding meaning.
Table 3-1Mode switch settings
Position Meaning Explanation
RUN RUN mode The CPU is executing the user program.
STOP STOP mode The user program is not being executed.
MRES Memory reset Position for CPU memory reset.
20
CPU 1512SP-1 PN (6ES7512-1DM03-0AB0)
Equipment Manual, 11/2022, A5E33591411-AE
Product overview
3.5 Mode switch