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S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
5-38
A5E00105492-03
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352),%86EXVFDEOH
For PROFIBUS DP or MPI networking we offer you the following bus cables for
diverse fields of application:
Table 5-18
Available bus cables
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PROFIBUS cable
6XV1 830-0AH10
PROFIBUS cable, halogen-free
6XV1 830-0CH10
PROFIBUS underground cable
6XV1 830-3AH10
PROFIBUS trailing cable
6XV1 830-3BH10
PROFIBUS cable with PUR sheath for
environments subject to chemical and
mechanical stress
6XV1 830-0DH10
PROFIBUS bus cable with PE sheath for
the food and beverages industry
6XV1 830-0BH10
PROFIBUS bus cable for festooning
6XV1 830-3CH10
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The PROFIBUS cable is a shielded twisted-pair cable with copper conductors. It is
used for line transmission in accordance with US Standard EIA RS485.
The table below lists the characteristics of these bus cables.
Table 5-19
Characteristics of the bus cables for PROFIBUS
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Impedance level
approx. 135
Ω
to 160
Ω
(f = 3 MHz to 20 MHz)
Loop resistance
≤
115
Ω
/km
Effective capacitance
30 nF/km
Attenuation
0.9 dB/100 m (f = 200 kHz)
permitted conductor cross-sections
0.3 mm
2
to 0.5 mm
2
permitted cable diameter
8 mm
±
0.5 mm
Содержание CPU 312
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