PROFIBUS “Compact” Bus Coupler BK3150
Status display
fieldbus,
power LEDs
K-bus
Bus Coupler
supply
Input for
power contacts
Power contacts
Fieldbus connection
Address selector
Configuration interface
Address selector
extended temperature range

BK3150 | PROFIBUS “Compact” Bus Coupler

PROFIBUSThe “Compact” Bus Coupler BK3150 for PROFIBUS extends the Beckhoff Bus Terminal system by a cost-optimized 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
Technical data BK3150
Number of Bus Terminals 64 (255 with K-bus extension)
Max. number of bytes fieldbus 128 byte input and 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.
Current supply K-bus 1750 mA
Power contacts max. 24 V DC/max. 10 A
Electrical isolation 500 V (power contact/supply voltage/fieldbus)
Weight approx. 100 g
Operating/storage temperature -25…+60 °C/-40…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/variable
Approvals/markings CE, UL, ATEX
Ex marking II 3 G Ex nA IIC T4 Gc
Accessories/related products  
KS2000 configuration software for extended parameterisation
Cordsets cordsets and connectors
FC310x PC Fieldbus Cards with PCI interface
BK3100 PROFIBUS DP/FMS Bus Coupler for up to 64 Bus Terminals, 12 Mbaud
BK3120 PROFIBUS “Economy plus” Bus Coupler for up to 64 Bus Terminals (255 with K-bus extension), 12 Mbaud
BK3520 PROFIBUS “Economy plus” Bus Coupler for up to 64 Bus Terminals (255 with K-bus extension), 12 Mbaud
BC3100 PROFIBUS Bus Terminal Controller for up to 64 Bus Terminals, 12 Mbaud
BC3150 PROFIBUS “Compact“ Bus Terminal Controller for up to 64 Bus Terminals (255 with K-bus extension), 12 Mbaud
BX3100 PROFIBUS Bus Terminal Controller for up to 64 Bus Terminals (255 with K-bus extension), 12 Mbaud
CX8030 PROFIBUS Embedded PC, master
CX8031 PROFIBUS Embedded PC, slave
System  
PROFIBUS For further PROFIBUS products please see the system overview