The BK90x0 Bus Couplers connect Ethernet with the modular, extendable electronic terminal blocks. One unit consists of one Bus Coupler, any number from 1 to 64 terminals and one end terminal. The “Compact” BK9050 Bus Coupler is a cost-optimised version with compact housing. With the K-bus extension, up to 255 Bus Terminals can be connected.
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 BK9000 and BK9050 Bus Couplers support 10 Mbit/s and 100 Mbit/s Ethernet. Connection is through normal RJ 45 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 BK9000 and BK9050 Bus Couplers support ADS TwinCAT system communication. TwinCAT I/O makes available configuration tools and Windows NT/2000/XP drivers for programs in any desired high-level language (DLLs) and for Visual Basic applications (ActiveX). Applications with OPC interfaces can access ADS (and therefore the BK9000 or BK9050) via an OPC server. In addition to ADS the Bus Coupler supports Open Modbus (Modbus TCP), a simple, widespread master/slave protocol based on TCP/IP.
The BK9000 and BK9050 Bus Couplers support the operation of all Bus Terminal types.
The analog and multi-functional Bus Terminals can be adapted to each specific application using the KS2000 configuration set. Depending on the type, the analog Bus Terminals' registers contain temperature ranges, gain values and linearisation characteristics. With the KS2000, the required parameters can be set on a PC. The Bus Terminals store settings permanently and in a fail-safe manner.
Optionally, the Bus Terminals can also be controlled by the control system. Via function blocks (FBs), the programmable logic controller (PLC) or the Industrial PC (IPC) handles configuration of the complete periphery during the start-up phase. If required, the controller can upload the decentrally created configuration data in order to centrally manage and store this data. Therefore, new adjustments are not necessary in the event of replacement of a Bus Terminal. The controller carries out the desired setting automatically after switching on.
|System data||Ethernet TCP/IP | BK9000, BK9050|
|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|
|Data transfer rates||10/100 Mbaud|
|Number of Bus Terminals||64||64 (255 with K-bus extension)|
|Max. number of bytes fieldbus||512 byte input and 512 byte output|
|Digital peripheral signals||512 inputs/outputs||1,020 inputs/outputs|
|Analog peripheral signals||128 inputs/outputs|
|Protocol||TwinCAT ADS, Modbus TCP, Beckhoff real-time Ethernet|
|Configuration possibility||via KS2000|
|Data transfer rates||10/100 Mbaud, automatic recognition of the transmission rate|
|Bus interface||1 x RJ 45|
|Power supply||24 V DC (-15 %/+20 %)|
|Input current||70 mA + (total K-bus current)/4, 500 mA max.||320 mA max.|
|Starting current||2.5 x continuous current|
|Recommended fuse||≤ 10 A|
|Current supply K-bus||1,750 mA||1,000 mA|
|Power contacts||24 V DC max./10 A max.|
|Electrical isolation||500 V (power contact/supply voltage/fieldbus)|
|Weight||approx. 170 g||approx. 100 g|
|Operating/storage temperature||-25…+60 °C/-40…+85 °C||0…+55 °C/-25…+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|
|KS2000||configuration software for extended parameterisation|
|Cordsets||cordsets and connectors|
|FC90xx-00xx||PC Fieldbus Cards with PCI interface|
|BK9000||Ethernet TCP/IP Bus Coupler for up to 64 Bus Terminals|
|BK9050||Ethernet TCP/IP “Compact” Bus Coupler for up to 64 Bus Terminals (255 with K-bus extension)|
|BK9100||Ethernet TCP/IP Bus Coupler for up to 64 Bus Terminals (with integrated 2-channel switch)|
|BC9xxx, BX9000||Ethernet TCP/IP Bus Terminal Controller|
|CX8090||Ethernet Embedded PC|
|Ethernet TCP/IP||For further Ethernet TCP/IP products please see the system overview|