Siemens SIMATIC PANEL PC 877 - Page 177

Technical data
15.1 General technical data
SIMATIC Panel PC 877
Operating instructions, Release 07/2006, A5E00877780-01
15-7
Permissible temperature ranges depending on the installation method
Panel PC 877
Complete unit Internal cabinet
temperature
Ambient
temperature
cabinet
Comment
Installed in cabinet
different temperatures
50 °C 40 °C 1)4)
Installed in cabinet
Same temperature inside and outside
45 °C 45 °C 2)4)
Computer unit and control unit separated,
using Remote Kit
12" control unit
15" control unit
19" v
Computer unit, Intel ® Pentium 4 Mobile
2.2 GHz, 400 MHz
50 °C
50 °C
50 °C
55 °C
45 °C
45 °C
45 °C
-
5)
3)4)
These values are applicable for vertical installation and when air is flowing through the
cabinet.
1) Max. PCI load 50 W
2) Full expansion, max. PCI load 75 W (5 slots)
3) PCI modules are not permitted
4) Above 40 °C, optical drives must not be operated
5) When the 19" front is operated at ambient temperatures between 45 °C and 50 °C, the
USB interface of the Remote Kit (rear USB interface) must not be used.