BK5250 | DeviceNet Compact Bus Coupler

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.

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/storage temperature -25…+60 °C/-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, UL, ATEX, IECEx

Ex marking ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc

>>> Refer to technical document: bk5250en