Siemens Simatic S7-300 CPU 31xC Series Installation And Operating Instructions Manual page 227

Cables for ...
DC voltage (> 60 V and ≤ 400 V),
•
unshielded
AC voltage (> 25 V and ≤ 400 V),
•
unshielded
DC and AC voltage (> 400 V),
unshielded
ETHERNET
S7-300, CPU 31xC and CPU 31x: Installation
Operating Instructions, Edition 08/2004, A5E00105492-05
and cables for ...
Bus signals, shielded (PROFIBUS)
•
Data signals, shielded
•
(programming devices, operator
panels, printers, counter inputs,
etc.)
Analog signals, shielded
•
DC voltage ( ≤ 60 V), unshielded
•
Process signals ( ≤ 25 V), shielded
•
AC voltage (≤ 25 V), unshielded
•
Monitors (coaxial cable)
•
DC voltage (> 60 V and ≤ 400 V),
•
unshielded
AC voltage (> 25 V and ≤ 400 V),
•
unshielded
DC and AC voltage (> 400 V),
•
unshielded
Bus signals, shielded (PROFIBUS)
•
Data signals, shielded
•
(programming devices, operator
panels, printers, counter inputs,
etc.)
Analog signals, shielded
•
DC voltage ( ≤ 60 V), unshielded
•
Process signals ( ≤ 25 V), shielded
•
AC voltage (≤ 25 V), unshielded
•
Monitors (coaxial cable)
•
DC and AC voltage (> 400 V),
•
unshielded
ETHERNET
Others
A.2 Protection against electromagnetic interference
Run ...
In separate bundles or cable ducts (no
minimum clearance necessary)
In common bundles or cable ducts
Inside cabinets:
In separate bundles or cable ducts (no
minimum clearance necessary)
Outside cabinets:
On separate cable racks with a
clearance of at least 10 cm
Inside cabinets:
In separate bundles or cable ducts (no
minimum clearance necessary)
Outside cabinets:
On separate cable racks with a
clearance of at least 10 cm
In common bundles or cable ducts
In common bundles or cable ducts
In separate bundles or cable ducts with
a clearance of at least 50 cm
Appendix
A-17