Mounting
5.3 Mounting on the SIMATIC S7-1200
SIWAREX WP251
Manual, 12/2015, A5E37203357A
27
Rule 4: Special EMC measures
● All inductors that are to be controlled should be connected with suppressors.
● For cabinet or enclosure lighting in the immediate range of your controller, use
incandescent lamps or interference suppressed fluorescent lamps.
Rule 5: Homogeneous reference potential
● Create a homogeneous reference potential and ground all electrical equipment.
● Use sufficiently dimensioned equipotential bonding conductors if potential differences
exist or are expected between your system components. Equipotential bonding is
absolutely mandatory for applications in hazardous areas.
Mounting on the SIMATIC S7-1200
The electronic weighing system described here is a SIMATIC S7-1200 module and can be
directly connected to the automation system's bus system. The 70 mm wide module has very
low installation and cabling requirements.
The module is fitted on a mounting rail, and the bus connection made using the slide switch.
The load cells, power supply and serial interfaces are connected via the screw-type
connectors.
Use of the WP251 in the SIMATIC TIA Portal is described in detail in section 11 of this
manual: → Integration in SIMATIC S7-1200 (Page 185)
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