Siemens SIMATIC IPC647E Operating Instructions Manual page 127

Procedure
1. Remove the expansion cards, if necessary. You can find information on this under
"Installing/removing expansion cards (Page 90)".
2. Remove the battery from socket.
3. Press the new battery into the socket applying slight pressure.
4. Close the device.
5. Check the firmware settings.
See also
Hardware accessories (Page 29)
SIMATIC IPC647E
Operating Instructions, 11/2018, A5E45589180-AA
Device maintenance and repair
7.3 Removing and installing hardware
127