Article No. BK3150
The “Compact” Bus Coupler BK3150 for PROFIBUS 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 PROFIBUS Bus Coupler offers automatic baud rate detection up to 12 Mbaud and two address selection switches for address assignment. For the fieldbus connection, a D-sub 9-pin socket for the ZS1031-3000 or ZB3100 PROFIBUS connectors is available.
| System data | PROFIBUS | BK3150 |
|---|---|
| Number of I/O stations | 100 with repeater |
| Number of I/O points | approx. 6,000, depending on the master |
| Data transfer medium | shielded copper cable, 2 x 0.25 mm² |
| Max. cable length | 1,200 m 1,000 m 400 m 200 m 100 m |
| Data transfer rates | 9.6/19.2/93.75 kbaud 187.5 kbaud 500 kbaud 1,500 kbaud …3, 6, 12 Mbaud |
| Technical data | BK3150 |
|---|---|
| Number of Bus Terminals | 64 (255 with K-bus extension) |
| Max. number of bytes fieldbus | 128 byte input and 128 byte output |
| Data transfer rates | automatic detection up to 12 Mbaud |
| Bus interface | 1 x D-sub 9-pin socket with shielding |
| Power supply | 24 V DC (-15 %/+20 %) |
| Input current | 70 mA + (total K-bus current)/4, 500 mA max. |
| Current supply K-bus | 1750 mA |
| Power contacts | max. 24 V DC/max. 10 A |
| Electrical isolation | 500 V (power contact/supply voltage/fieldbus) |
| Weight | approx. 100 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/markings | CE, UL, ATEX |
| Ex marking | II 3 G Ex nA IIC T4 Gc |
