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2.3.5
Connections to Electrical Communication Interfaces
Electrical
Communication
Interfaces
Connections to
Serial
Communication
Interfaces
7SJ63 Manual
C53000-G1140-C120-1
9 pin D-subminiature female socket connectors are provided for all electrical commu-
nication interfaces of the 7SJ63. The connector is illustrated in Figure 2-15. The pin
assignments are described in Sub-section 8.2.1.
5
9
6
1
front side
Figure 2-32
9 pin D-subminiature Connector
Standard 9-pin D-subminiature plug connectors per MIL–C–24308 and DIN 41652
can be used.
The necessary communication cables are dependent on the interface:
• EIA 232: Five-wire, twisted and shielded, e.g. interface cable 7XV5100–4.
• EIA 485: Three-wire, twisted and shielded.
• Profibus: Two-wire or four-wire, twisted and shielded:
Wire Type A, DIN 19245, Part 2 and EN 50170 vol. 2, twisted and shielded,
Wire Resistance: 135 Ω to 165 Ω (f > 100 kHz)
Capacitance: < 30 nF/km or < 48 nF/mile
Circuit Resistance: < 110 Ω/km or 177 Ω/mile
Conductor Diameter: > 0.64 mm
Conductor Cross-sectional Area: > 0.34 mm
e.g., SINEC L2 Industrial twisted pair installation wire (see catalog 1K 10 "SIMATIC
NET, Industrial Communications Networks").
• Time synchronization: at least two-wire, shielded.
n
Hardware and Connections
1
6
9
5
rear side
2
2-31
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