SSD Drives DIGIVEX Motion PVD 3554, Руководство пользователя и по вводу в эксплуатацию

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DIGIVEX Motion - PROFIBUS
20
PVD 3554 GB 01/2004
3. CONNECTING
3.1 Connecting the bus cable (RS485)
3.1.1 Pin configuration of the Sub-D connector
DIGIVEX Motion PROFIBUS comprises a 9-pin Sub-D female connector (X1) for connecting it to
the PROFIBUS system. All RS485 interface connections are protected against short-circuiting
and have galvanic insulation.
Pin configuration of the Sub-D female connector
PIN DESIGNATION MEANING
1 - Not assigned
2 - Not assigned
3 TxD Emission data (B)
4 RTS Control signal
5 DGND PROFIBUS data reference potential (C)
6 VP Power supply voltage (+5V)
7 - Not assigned
8 RxD Receiving data (A)
9 - Not assigned
3.1.2 Cables
RS485 technology is the most frequently used transmission mode for PROFIBUS-DP. Thus a
two-wire shielded cable, with a twisted pair of copper conductors is used.
It is possible to connect up to a maximum of 124 devices with one PROFIBUS line. Up to 32
devices can be interconnected in a linear topology within one bus segment. Repeaters (cable
amplifiers) can be used to link the different bus segments if the number of subscribers exceeds
32.
The maximum cable lengths are dependant on the baud rate (transmission speed).
The maximum cable lengths given in the table below can only by guaranteed with PROFIBUS
bus cables CB08320.
REFERENCE DESIGNATION
CB08320
PROFIBUS cable by the
metre