
The Compact Bus Coupler BK5250 for DeviceNet® 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 DeviceNet® Bus Coupler offers automatic baud rate detection up to 500 kbaud and two address selection switches for address assignment. A 5-pin connector for the fieldbus connection is included in the scope of supply. Optionally, the ZS1052-3000 connector with integrated terminating resistor can be connected.
Product status:
regular delivery
Product information
Technical data | BK5250 |
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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 | 1,020 inputs/outputs |
Analog peripheral signals | 256 inputs/outputs |
Configuration possibility | via KS2000 or the controller |
Data transfer rates | automatic detection |
Bus interface | 1 x open pluggable connector, 5-pin, included |
Data transfer medium | screened, twisted copper wire with power supply, 5-pin |
Power supply | 24 V DC (-15%/+20%), through bus cable 11…25 V (conforms to DeviceNet® specification) |
Serial interface | configuration interface |
Diagnostics LED | 2 x power supply, 2 x K-bus, 2 x fieldbus |
Current supply K-bus | 1750 mA |
Power contacts | max. 24 V DC/max. 10 A |
Electrical isolation | 500 V (power contact/supply voltage Bus Coupler) |
Operating modes | bit strobe, polling, cyclic, change of state (COS) |
DeviceNet® type | communications adapter |
Weight | approx. 100 g |
Operating temperature | -25…+60°C |
Storage temperature | -40…+85°C |
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. rating/installation pos. | IP20/variable |
Approvals/markings | CE, CCC, UL, ATEX, IECEx |
Ex marking | ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc |
Housing data | BKxx50, BCxx50 |
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Design form | compact terminal housing with signal LEDs |
Material | polycarbonate |
Dimensions (W x H x D) | 44 mm x 100 mm x 68 mm |
Installation | on 35 mm DIN rail, conforming to EN 60715 with lock |
Side by side mounting by means of | double slot and key connection |
Marking | labeling of the BZxxx series |
Wiring | solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver |
Connection cross-section | s*: 0.08…2.5 mm², st*: 0.08…2.5 mm², f*: 0.14…1.5 mm² |
Stripping length | 8…9 mm |
Current load power contacts | Imax: 10 A |
*s: solid wire; st: stranded wire; f: with ferrule
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