Siemens SIMATIC Rack PC 840 V2 Operating Instructions Manual page 48

Expansions and configuration
10.2 Memory expansion
Installing a Memory Module
How to install a memory module
1
2
3
4
Removing a Memory Module
How to remove a memory module
1
2
3
4
Display of the current memory configuration
A new memory module is automatically detected. The allocation of the "base memory and
extended memory" is automatically displayed when you switch on the device..
10-4
Open the device.
Note the recess (reversal protection)
on the connector side of the RAM
module.
Push the module carefully into the
slot until the interlocks engage
Close the device.
Open the device.
Open the left and right interlocks
Pull the memory module out of the
slot
Close the device.
Operating Instructions, Edition 05/2006, A5E00248055-04
SIMATIC Rack PC 840 V2