Siemens SIMATIC PANEL PC 877 - Manual (Page 30)

Application planning
4.4 Mounting Positions and Fastening
SIMATIC Panel PC 877
4-6
Operating instructions, Release 07/2006, A5E00877780-01
4.4.2 Permitted mounting positions
Approval
Certain mounting positions are approved for the equipment that comprises one control unit
and one computer unit.
Permitted mounting positions
r r
Vertical installation with deviations between +20° and -20° in the given directions is
permissible.