Siemens SIMATIC MOBY D System Manual page 112

Mobile data storage units
5.5 MDS D139
Note
If the minimum guide values (h) are not observed, a reduction of the field data results. It is
possible to mount the MDS with metal screws (M5). This has no tangible impact on the
range. It is recommended that a test is performed in critical applications.
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System Manual, 01/2010, J31069-D0147-A6-7618
MOBY D