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> Kollmorgen beckhoff BK2020 lightbus coupler term block
Kollmorgen beckhoff BK2020 lightbus coupler term block
Beckhoff BK2020 Lightbus Bus Coupler for Terminal Block
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This unit was removed from a working piece of test equipment and is in great condition. There is a few marks and scratches on the casing, but very minor, and overall the unit looks good. The unit has not been tested, but is guaranteed to be working and will come wtih a ROR should there be any issues. Here are the details from Beckhoff:
BK2020: Lightbus "Economy plus" Bus Coupler for up to 64 Bus Terminals (255 with K-bus extension)
BK2000, BK2010, BK2020 | Lightbus Bus Couplers
The BK2000, BK2010 and BK2020 Bus Couplers connect the Lightbus system to the electronic terminal blocks, which can be expanded in modular fashion. One unit consists of one Bus Coupler, any number of up to 64 terminals and one end terminal. The BK2010 economy variant permits particularly economical creation of peripheral interfacing connections. Up to 64 digital input/output terminals can be connected.
With the K-bus extension technology, the Economy plus Bus Coupler BK2020 allows the connection of up to 255 spatially distributed Bus Terminals to one Bus Coupler. The Economy plus series supports all Beckhoff system Bus Terminals. It can process in its full configuration 1,020 digital signals and a maximum of 128 analog input and output channels per slave.
The Bus Coupler recognises the connected terminals and automatically generates the affiliations of the inputs/outputs to the bytes of the process image. The first input/output signal is inserted in the first bit of one byte (LSB), beginning from the left. The Bus Coupler inserts further signals in this byte. Inputs and outputs are clearly separated. The Bus Coupler automatically begins a further byte if the number of inputs or outputs exceeds 8 bits.
The Lightbus System is a rapid and safe serial fieldbus system. The Lightbus has a ring structure; up to 254 stations can be operated in a ring. Easy-to-operate standard fibre optic technology is used for data transmission, which represents excellent value. Thanks to an optimised, efficient telegram structure, the Lightbus achieves a very high user data transmission rate. For the exchange of 32 bit information 25 s transmission time is required.
Complex signal processing for analog I/Os, position measurement,
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 automatically sets the required setting on power up.
Thanks to the high-speed access method employed by the Lightbus, it is possible to access specific peripheral data and to read or write the required data only. Data is exchanged with the required priorities without producing any overhead.
Lightbus | BK2000, BK2010, BK2020
fibre optic conductor: APF (plastic) fibre (1,000 m) or HCS fibre (200 )
45 m for APF fibre, 300 m HCS fibre
0.26 ms in the case of 10 modules for 32 bit inputs and outputs each (without K-bus run-time)
512 byte input and 512 byte output
2 x standard fibre optic connector Z1000 (plastic fibre), Z1010 (HCS fibre)
70 mA + (total K-bus current)/4, 500 mA max.
approx. 2.5 x continuous current
500 Vrms (power contact/supply voltage)
conforms to EN 60068-2-6/EN 60068-2-27/29
conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos.
For more information and specs, please see Beckhoff's Website: Lightbus Bus Couplers
