Operating instructions

Installation, Commissioning, Cleaning and Maintenance
Industrial Ethernet OSM/ESM
C79000-Z8976-C068-04
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5.2 Installation
OSMs/ESMs can be installed in several ways:
Installation on a 35 mm standard rail
Installation on a SIMATIC S7-300 rail
Installation in pairs in a 19" cubicle
Wall mounted
Note
Remember that the OSM/ESM must only be installed horizontally (ventilation slits
top/bottom see Figure 25). To ensure adequate convection, there must be a
clearance of at least 5 cm above and below the ventilation slits. You should also
make sure that the permitted ambient temperature is not exceeded.
Preparations
1. Before installing, check whether the switch setting of the DIP switches is correct for
your application (see Section 4.2.4.1)
2. Remove the terminal block from the OSM and wire up the powers supply and
signal lines as described in Section 4.1.7.