BK3150 | PROFIBUS DP “Compact” Bus Coupler

The “Compact” Bus Coupler BK3150 for PROFIBUS DP extends the Beckhoff Bus Terminal system by a cost-optimised version in a compact housing. Up to 64 Bus Terminals are supported; with the terminal bus extension, up to 255 Bus Terminals can be connected. The PROFIBUS Bus Coupler offers automatic baud rate detection up to 12 Mbaud and two address selection switches for address assignment. For the fieldbus connection, a D-sub 9-pin socket for the ZS1031-3000 or ZB3100 PROFIBUS connectors is available.

System data

PROFIBUS | BK3150

Number of I/O stations

100 with repeater

Number of I/O points

approx. 6,000, depending on the master

Data transfer medium

shielded copper cable, 2 x 0.25 mm²

Max. cable length

1,200 m

1,000 m

400 m

200 m

100 m

Data transfer rates

9.6/19.2/
93.75 kbaud

187.5 kbaud

500 kbaud

1,500 kbaud

…3, 6, 12 Mbaud

Data transfer time

approx. 3 ms (10 stations for 32 bit input and output each)

approx. 0.5 ms

Technical data	BK3150
Number of Bus Terminals	64 (255 with K-bus extension)
Max. number of bytes fieldbus	128 byte input und 128 byte output
Data transfer rates	automatic detection up to 12 Mbaud
Bus interface	1 x D-sub 9-pin socket with shielding
Power supply	24 V DC (-15 %/+20 %)
Input current	70 mA + (total K-bus current)/4, 500 mA max.
Supply current K-bus	1,000 mA
Power contacts	24 V DC max./10 A max.
Electrical isolation	500 Vrms (power contact/supply voltage/fieldbus)
Weight	approx. 100 g
Operating/storage temperature	0…+55 °C/-25…+85 °C
Relative humidity	95 %, no condensation
Vibration/shock resistance	conforms to EN 60068-2-6/EN 60068-2-27/29
EMC immunity/emission	conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos.	IP 20/variable