Siemens SIMATIC IPC477E Operating Instructions Manual page 82

Expanding the device and assigning device parameters
6.2 Installing and removing a memory module
Installation
1. Insert the memory module into the
marked slot at an incline with the contact
side toward the motherboard.
2. Carefully press the memory module into
the contact strip until the latches engage.
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Operating Instructions, 12/2016, A5E37455003-AB
SIMATIC IPC477E