Siemens SIMATIC FS400 Anleitung Seite 154

6.1.5.1 Minimum distances to reflective surfaces with the use of deflecting mirror
columns
The minimum distance "a" is dependent on the distance of the last deflecting mirror
from the receiver. Fig. 6.1-7 and Fig. 6.1-8 show the beam path from the last deflecting
mirror to the receiver, and the chart for determining the minimum distances to reflective
surfaces, dependent on the distance of the last deflecting mirror from the receiver.
c
a = Minimum beam distance to reflective surfaces
b = Distance of last deflecting mirror column to receiver
c = Last deflecting mirror column before receiver
d = Reflective surface
e = Receiver
Fig. 6.1-7: Distance "a" to reflective surfaces
154
a
b
d
e