Siemens SIMATIC MV500 Operating Instructions Manual page 110

Mounting
5.3 Mounting with built-in ring light and EF lens
12.Mount the reader on a suitable mounting fixture or holder (4x M4, 1-2 Nm).
Use the mounting plate for SIMATIC MV500 or a mounting device with matching holes.
Note that the reader has two different drilling templates (50 x 60/57 x 57).
Figure 5-5
13.Select a suitable location to install the device.
110
Hole template for mounting the SIMATIC MV500 optical reader
Operating Instructions, 03/2021, C79000-G8976-C494-05
SIMATIC MV500