97BPLC concepts
4.5 Using a memory card
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
101
CAUTION
If you insert a memory card (whether configured as a program or transfer card) into a
running CPU, the CPU goes immediately to STOP mode, which might result damage to the
equipment or to the process being controlled. Before inserting or removing a memory card,
always ensure that the CPU is not actively controlling a machine or process. Always install
an emergency stop circuit for your application or process.
Note
If you insert a memory card with the CPU in STOP mode, the diagnostic buffer displays a
message that the memory card evaluation has been initiated. The CPU will evaluate the
memory card the next time you either change the CPU to RUN mode, reset the CPU
memory with an MRES, or power-cycle the CPU.
To insert a memory card, open the top
CPU door and insert the memory card in
the slot. A push-push type connector
allows for easy insertion and removal.
The memory card is keyed for proper
installation.