Product overview
3.5 Mode switch
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
22 Operating Instructions, 11/2019, A5E35873416-AC
Slot for the SIMATIC memory card
Figure 3-3 Slot for the SIMATIC memory card
CPU 1516pro-2 PN uses a SIMATIC memory card as the memory module. You can use the
SIMATIC memory card as load memory or as a portable storage medium. The slot for the
SIMATIC memory card is accessible on the front of the CPU after removing the connection
module. You can find detailed information on removing and inserting the SIMATIC memory
card in section Inserting/replacing SIMATIC memory card (Page 76).
3.5 Mode switch
Use the mode switch to set the CPU operating mode.
The following table shows the position of the switch and the corresponding meaning.
Table 3- 1 Mode switch settings
The CPU is executing the user program.
The CPU is not executing the user program.
MRES Memory reset Position for CPU memory reset.