Siemens SITOP BUF8600, Manual, Page: 149 / 252

Engineering and remote access
7.4 SIMATIC STEP 7
PSU8600power supply systems
Manual, 04.2016, A5E35883207-7-76
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3. Select the required expansion module in the Hardware catalog and drag the expansion
module and drop it into the required slot in the station window.
Alternatively, the expansion module can also be added by double-clicking on the entry in
the Hardware catalog.
The expansion module is inserted into the selected slot.
4. Save the hardware configuration.
You have assigned an expansion module to the basic device. How you parameterize the
expansion module is described under Parameterizing outputs (Page 159).
Assigning a buffer module
A buffer module permits buffering when the power fails. A SITOP PSU8600 basic device can
be equipped with a maximum of two SITOP BUF8600 buffer modules.
Buffer module versions
BUF8600 buffer modules with electrolytic capacitors:
● Buffer time of 100 ms at 40 A, Article number 6EP4297-8HB00-0XY0
● Buffer time of 300 ms at 40 A, Article number 6EP4297-8HB10-0XY0
BUF8600 buffer modules with double-layer capacitors:
● Buffer time of 4 s at 40 A, Article number 6EP4293-8HB00-0XY0
● Buffer time of 10 s at 40 A, Article number 6EP4295-8HB00-0XY0