Siemens Simatic IPC647C, Руководство по эксплуатации

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Expansions and parameter assignment
10.2 Memory expansion
SIMATIC IPC647C
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Operating Instructions, 12/2010, A5E02669337-02
10.2 Memory expansion
10.2.1 Installing memory modules
Memory expansion options
The motherboard is equipped with 2 slots for memory modules. DIMM DDR3 memory
modules, storage frequency 1066 MT/sec, type PC3-8500, unbuffered, no ECC, or with ECC
can be utilized. This allows you to expand Rack PC memory up to 8 GB, approximately
3.2 GB of which you can use for the operating system and applications for 32-bit operating
systems. You can install one or two modules.
Combination Slot X19 (outside) Slot X20 (inside) Maximum
expansion
1 1 GB / 2 GB / 4 GB 4 GB
2 1 GB / 2 GB / 4 GB 1 GB / 2 GB / 4 GB 8 GB
Note
The modules can be inserted into any slot. Memory is operated in dual-channel mode if two
modules are installed.
If expansion modules with their own memory (for example, graphics cards with 256 MB or
more) are used on the module, the memory available for the 32-bit operating system or
application can also be less than 3.2 GB.
In order to avoid operating faults you may have to extend a module so that the real memory
expansion on the motherboard and the reserved memory of the expansion module do not
overlap.
Preparation
Disconnect the device from mains and unplug all cables.
CAUTION
The electronic components on the PCBs are highly sensitive to electrostatic discharge.
Always take appropriate precautionary measures when handling these components. Refer
to the ESD directives on handling of electrostatically sensitive components:
3
ESD Guidelines
(Page
2
221) .