CANopen "Compact" Bus Terminal Controller BC5150
Status display
power LEDs
Bus Coupler
Input for
power contacts
Power contacts
Fieldbus connection
Address selector
Configuration and
programming interface
Address selector
extended temperature range

BC5150 | CANopen "Compact" Bus Terminal Controller

The Bus Terminal Controllers are Bus Couplers with integrated PLC functionality. The “Compact” BC5150 Bus Terminal Controller for CANopen extends the Beckhoff small controller series by a cost-optimized version in a compact housing. The CANopen controller offers automatic baud rate detection up to 1 Mbaud and two address selection switches for address assignment.

The Bus Terminal Controller is programmed using the TwinCAT programming system according to IEC 61131-3. The configuration/programming interface on the BC5150 is used to load the PLC program. If the software PLC TwinCAT is in use, the PLC program can also be loaded via the fieldbus. The inputs and outputs of the connected Bus Terminals are assigned in the default setting of the PLC. Each Bus Terminal can be configured in such a way that it exchanges data directly through the fieldbus with the higher-level automation device. Similarly, pre-processed data can be exchanged between the Bus Terminal Controller and the higher-level controller via the fieldbus.

Controller for distributed signal processing

The programming system TwinCAT for the BC5150 operates, independently of the manufacturer, in accordance with IEC 61131-3. The PLC programs can be written in five different programming languages (IL, FBD, LD, SFC, ST). In addition, TwinCAT offers extensive debug functionalities (breakpoint, single step, monitoring, …), which facilitate commissioning. It is also possible to perform adjustment and measurement of the cycle time.

PLC data CANopen | BC5150
Programming TwinCAT (via programming interface or fieldbus)
Program memory 48 kbytes
Data memory 32 kbytes
Remanent data 2 kbytes
Runtime system 1 PLC task
PLC cycle time approx. 3 ms for 1,000 instructions (without I/O cycle, K-bus)
Programming languages IEC 61131-3 (IL, LD, FBD, SFC, ST)
Online change yes
Technical data BC5150
Number of Bus Terminals 64 (255 with K-bus extension)
Max. number of bytes fieldbus 16 Tx/Rx PDOs
Max. number of bytes process image 512 byte input and 512 byte output
Digital peripheral signals 2,040 inputs/outputs
Analog peripheral signals 1024 inputs/outputs
Data transfer rates automatic detection up to 1 Mbaud
Bus interface open style connector, 5-pin
Serial interface programming and configuration interface
Configuration via KS2000 or fieldbus
Power supply 24 V DC (-15 %/+20 %)
Input current 60 mA + (total K-bus current)/4
Current supply K-bus 1750 mA
Power contacts max. 10 A
Electrical isolation 500 V (power contact/supply voltage)
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
Accessories/related products  
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CANopen For further CANopen products please see the system overview