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BK5120 | CANopen Bus Coupler
 The BK5120 “Economy plus” Bus Coupler connects the CAN bus system to the electronic
terminal blocks, which can be extended in modular fashion. One unit consists of one Bus Coupler, any number
of up to 64 terminals and one end terminal. With the K-bus extension technology, the BK5120 allows t
he connection of up to 255 spatially distributed Bus Terminals to one Bus Coupler.
The Bus Coupler works on the CAN protocol basis as defined in ISO 11898. In addition to network services,
CANopen also determines the data allocation for automation systems applications and has established itself as
an open CAN application layer. The Bus Coupler supports all types of CANopen communications and can also
be used without difficulty in manufacturer-specific CAN environments due to the simple structure of this protocol
definition. The firmware can be updated via the configuration interface.
Parameterising can also be carried out using any CANopen configuration tools. For this, EDS data files are available,
which describe all the setting options for the CANopen coupler. For most applications, however, no configuration is
necessary, as CANopen provides practical default values for all parameters.
| System data | CANopen | BK5120 |
|---|
| Number of I-O stations | 64 (BK5120: 255 with K-bus extension) |
| Number of I-O points | depends on the structure |
| Data transfer medium | screened, twisted copper cable, 2 x signal, 1 x ground (recommended) |
| Max. cable length |
| 5,000 m | 2,500 m | 1,000 m | 500 m | 250 m | 100 m | 40 m |
|
| Data transfer rates |
| 10 kbaud | 20 kbaud | 50 kbaud | 100-125 kbaud | 250 kbaud | 500 kbaud | 1,000 kbaud |
|
| PDO modes | synchron, cyclic, event driven, polling |
| Technical data | BK5120 |
|---|
| Number of Bus Terminals | 64 (255 with K-bus extension) |
| Max. number of bytes fieldbus | 16 Tx-Rx PDOs |
| Digital peripheral signals | 960 inputs-outputs |
| Analog peripheral signals | 60 inputs-outputs |
| Configuration possibility | via KS2000 or the controller |
| Number of PDOs (CANopen) | 16 Tx16 Rx |
| Additional CANopen features | life, node guarding, emergency object, variable mapping, store-restore |
| Data transfer rates | up to 1 Mbaud |
| Bus interface | 1 x open style connector, 5-pin, included |
| Power supply | 24 V DC (-15 %+20 %) |
| Input current | 70 mA + (total K-bus current)4, 500 mA max. |
| Starting current | approx. 2.5 x continuous current |
| Recommended fuse | ≤ 10 A |
| Current supply K-bus | 1750 mA |
| Power contacts | 24 V DC max.10 A max. |
| Electrical isolation | 500 V (power contact-supply voltage Bus Coupler) |
| Weight | approx. 150 g |
| Operating-storage temperature | -25…+60 °C-40…+85 °C |
| Relative humidity | 95 %, no condensation |
| Vibration-shock resistance | conforms to EN 60068-2-6EN 60068-2-27 |
| EMC immunity-emission | conforms to EN 61000-6-2EN 61000-6-4 |
| Protect. class-installation pos. | IP 20variable |
| Approvals | CE, UL, Ex, GL |
| Accessories | |
|---|
| KS2000 | configuration software for extended parameterisation |
| Cordsets | cordsets and connectors |
| FC5101 | FC5102 | CANopen PCI fieldbus cards |
| Related products | |
|---|
| BK5110 | CANopen Coupler for up to 64 digital Bus Terminals |
| BK5150 | CANopen “Compact” Bus Coupler for up to 64 Bus Terminals (255 with K-bus extension) |
| BK5151 | CANopen “Compact” Bus Coupler for up to 64 Bus Terminals (255 with K-bus extension) |
| LC5100 | CANopen “Low Cost“ Bus Coupler version for up to 64 digital Bus Terminals (255 with K-bus extension) |
| BC5150 | CANopen “Compact” Bus Terminal Controller for up to 64 Bus Terminals (255 with K-bus extension) |
| BX5100 | CANopen Bus Terminal Controller for up to 64 Bus Terminals (255 with K-bus extension) |
| CX8051 | CANopen Embedded PC, slave |
| System | |
|---|
| CANopen | For further CANopen products please see the system overview |
|
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