Beckhoff BK3000 User Manual download pdf (Page 30)

PROFIBUS coupler BK3xx0 in the PROFIBUS DP

30 BK3xxx/LC3100

BK3500

RUN

DIA

PROFIBUS

BECKHOFF

24V

BK3500

Field Bus

Signal Input

Field Bus

Signal Output

Configuration

Interface

Address

Selector

Baud

rate

x10

Profibus fiber optic net

Characteristics

Topologiy

Subring

max. amount of

stations

93,75 kBaud: 13 187,5 kBaud: 12

500 kBaud: 12 1500 kBaud : 10

min./max.length

between two

stations

Coordinator – Station: Lmin = 1 m, Lmax = 34 m

Station – Station: Lmin = 1 m, Lmax = 25 m

Station – Coordinator: Lmin = 0 m, Lmax = 46 m

Bus connector

2 x HP Simplex connector (included)

APF (plastic)- fiber conductor (Z1101)

Baud rate

93,75; 187,5; 500; 1500 kBaud

Switch position

S1=0,S2=0; S1=0,S2=1; S1=1,S2=0; S1=1,S2=1

RS485

Fundamental

characteristics

RS-485

Data transfer

technology to the

Profibus standard

Network topology

Linear bus, active bus terminator at both ends, branch

lines are possible

Medium

Shielded twisted cable, shielding may be dispensed with in

suitable environments (electromagnetic compatibility)

Number of stations

32 stations in each segment without repeaters, extendible

to 127 with repeaters

Max. bus length

without repeaters

100 m at 12 Mbit/s

200 m at 1500 Kbit/s, up to 1.2 km at 93.75 Kbit/s

with repeaters

Using repeaters (line amplifiers) increases the max. bus

length to the order of 10 km. The number of possible

repeaters is at least 3 and may be up to 10, depending on

the manufacturer

Transfer rates

9.6, 19.2, 93.75, 187.5, 500, 1500 Kbit/s, up to 12 Mbit/s in

discrete steps

Plug

9-Pin D-Sub plug

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 66 67

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Beckhoff BK3000 User Manual Page 30

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