PROFINET Bus Coupler BK9103
Power LEDs
K-bus
Bus Coupler
supply
Input for
power contacts
Power contacts
PROFINET
Address selector
Configuration interface
PROFINET
Link/Act
10/100 Mbaud
Link/Act
10/100 Mbaud
extended temperature range

BK9103 | PROFINET Bus Coupler

PROFINETThe BK9103 Bus Coupler connects PROFINET RT with the modular, extendable electronic terminal blocks. One unit consists of one Bus Coupler, any number from 1 to 64 terminals (255 with K-bus extension) and one end terminal.

The Bus Couplers recognise the terminals to which they are connected, and perform the assignment of the inputs and outputs to the words of the process image automatically. The BK9103 Bus Coupler supports 10 Mbit/s and 100 Mbit/s Ethernet. Connection is through normal RJ45 connectors. The IP address is set on the DIP switch (offset to a freely selectable start address). In networks with DHCP (a service for the allocation of the logical IP address to the physical node address [MAC-ID]) the Bus Coupler obtains its IP address from the DHCP server.

The BK9103 contains a 3-port switch. Two ports operate external on RJ45 connectors and can be utilised. The I/O stations can thus be configured with a line topology instead of the classic star topology. In many applications this significantly reduces the wiring effort and the cabling costs. The maximum distance between two couplers is 100 m. Up to 20 BK9103 Bus Couplers are cascadable, so that a maximum line length of 2 km can be achieved.

PROFINET is the open Industrial Ethernet standard of the PNO (PROFIBUS User Organisation). Internationally established IT standards such as TCP/IP are used for communication. PROFINET RT describes the data exchange between controllers and field devices and can be used in standard Ethernet networks. Commercial switches are used for networking purposes.

System data PROFINET | BK9103
Number of I/O stations only limited by IP addresses
Number of I/O points depending on controller
Data transfer medium 4 x 2 twisted pair copper cable; category 3 (10 Mbaud), category 5 (100 Mbaud)
Distance between stations 100 m between hub/switch and Bus Coupler or between Bus Coupler and Bus Coupler
Data transfer rates 10/100 Mbaud
Topology line or star wiring
Cascading up to 20 BK9103 or max. line length 2 km
Technical data BK9103
Number of Bus Terminals 64 (255 with K-bus extension)
Max. number of bytes fieldbus 512 byte input and 512 byte output
Digital peripheral signals 512 inputs/outputs
Analog peripheral signals 256 inputs/outputs
Protocol PROFINET RT (Class B)
Configuration possibility via KS2000
Data transfer rates 10/100 Mbaud, automatic recognition of the transmission rate
Bus interface 2 x RJ45 (2-channel switch)
Power supply 24 V DC (-15 %/+20 %)
Input current 70 mA + (total K-bus current)/4, 500 mA max.
Starting current 2.5 x continuous current
Recommended fuse ≤ 10 A
Current supply K-bus 1750 mA
Power contacts 24 V DC max./10 A max.
Electrical isolation 500 V (power contact/supply voltage/fieldbus)
Weight approx. 170 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 CE, UL, Ex, GL
Accessories  
TS6271 license for using the TwinCAT PROFINET RT Controller
KS2000 configuration software for extended parameterisation
Cordsets cordsets and connectors
FC9001-0010 | FC9011 Ethernet PCI fieldbus cards
Related products  
BK9053 PROFINET “Compact” Bus Coupler for up to 64 Bus Terminals (255 with K-bus extension)
CX8093 PROFINET Embedded PC
System  
PROFINET For further PROFINET products please see the system overview