Siemens SIMATIC S7-1500 System Manual page 23

Product overview
2.3 Properties
Properties of the connection system
Table 2- 3
Twistable front connector
Pre-wiring position
Development of potential groups by the insertion
of potential bridges
Integrated EMC concept (power supply element,
shielding bracket, and terminal element)
Two snap-in positions of the front cover
Automatic coding of the I/O modules and front
cable connectors
Large label
22
Properties of the connection system
Properties of the connection system Explanation
Rapid module exchange during maintenance
•
(cable duct remains closed)
More user-friendly, because the module
•
wiring is easily accessible
No loosening of the wiring when replacing a
•
module
No electrical damage to the module is
•
possible, because it is not yet electrically
connected
Reduced wiring effort on the front cable
•
connector
Reduction of the interference emission and
•
optimization of the interference immunity
Flexible cable storage space
•
Safe replacement of modules
•
Sufficient space for clear identification and
•
user-specific labeling, e.g. symbolic
addresses
System Manual, 02/2014, A5E03461182-AB
S7-1500 Automation System