Technical Specifications Of The Bus Cable - Siemens SIMATIC S5 Manual
Interface of the programmable controller
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- Manual (396 pages) ,
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- Operating instructions manual (43 pages)
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System Description
Bus Cable for SINEC L2
You need a two-wire, shielded, twisted cable as bus cable, that has the technical specifications
listed in Table 1-9.
Table 1-12. Technical Specifications of the Bus Cable
Surge impedance
Loop resistance
Effective capacitance
Attenuation
Permissible core cross section
Permissible cable diameter
The SINEC L2 standard cable matches these specifications (order number for indoor bus cable:
6XV1 830-0AH10, for buried bus cable: 6XV1 830-3AH10).
RS 485 SINEC L2 Repeater
Use the RS 485 SINEC L2 Repeater for the following tasks:
•
To link individual SINEC L2 bus segments
•
To add branches to your network
•
To regenerate electrical signals on the network cables.
Each repeater that is connected to a bus segment limits the maximum possible number of stations
(32) by one for this bus segment. For example, when connecting two repeaters to a segment, you
can connect only 30 stations.
Two types of RS 485 SINEC L2 repeaters are available:
•
For nominal voltage operation 24 V DC with external power supply (degree of protection IP 20 )
•
For nominal voltage operation 24 V DC with external power supply (degree of protection IP 65)
1-24
Feature
Specification
approx. 135 to 160 (f= 3 - 20 MHz)
115 /km
30 nF/km
0.9 dB/100 (f= 200 kHz)
2
2
0.3 mm
to 0.5 mm
8 mm ± 0.5 mm
S5-95U, SINEC L2
EWA 4NEB 812 6112-02
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