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S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
12-16 A5E00105492-03
&DEOHVIRU DQGFDEOHVIRU 5XQ
• 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)
In separate bundles or cable
ducts (no minimum clearance
necessary)
• DC voltage (> 60 V and
≤ 400 V), unshielded
• AC voltage (> 25 V and
≤ 400 V), unshielded
In common bundles or cable
ducts
• DC voltage (> 60 V and
≤ 400 V), unshielded
• AC voltage (> 25 V and
≤ 400 V), unshielded
• DC and AC voltage (> 400 V),
unshielded
LQVLGHFDELQHWV
In separate bundles or cable
ducts (no minimum clearance
necessary)
RXWVLGHFDELQHWV
On separate cable racks with a
clearance of at least 10 cm
• 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)
LQVLGHFDELQHWV
In separate bundles or cable
ducts (no minimum clearance
necessary)
RXWVLGHFDELQHWV
On separate cable racks with a
clearance of at least 10 cm
DC and AC voltage (> 400 V),
unshielded
• DC and AC voltage (> 400 V),
unshielded
In common bundles or cable
ducts
ETHERNET In common bundles or cable
ducts
ETHERNET
Others In separate bundles or cable
ducts with a clearance of at least
50 cm