BC8050 BECKHOFF | Alldatasheet
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BC8050 https://www.beckhoff.com/bc8050 Technical changes reserved As of 01.09.2023 | Site 1 of 3 Product status: regular delivery The BC8050 Compact Bus Terminal Controller with serial RS485 interface extends the Beckhoff small controller series by a cost- optimized version in a compact housing. An open serial protocol – like in the BK8x00 Bus Couplers – and the Modbus RTU/ASCII protocol are implemented. The address and the protocol are selected via the two rotary selection switches. Controller for stand-alone applications The Bus Terminal Controller is programmed using the TwinCAT 2 programming system conforms to 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. The inputs and outputs of the connected Bus Terminals are assigned in the PLC. Data is exchanged with the interface on the Bus Terminal Controller with the aid of a control and status byte, through which a handshake must be executed. A serial communication function block for TwinCAT is available for this purpose. Product information Technical data PLC data RS485 | BC8050 Programming TwinCAT (via programming interface or fieldbus) Program memory 48 kbytes BC8050 | RS485 Bus Terminal Controller Status displayfieldbus,power LEDs K-bus Bus Couplersupply Input forpower contacts Power contacts Serial interface Address selector Configuration andprogramming interface Address selector
BC8050 https://www.beckhoff.com/bc8050 Technical changes reserved As of 01.09.2023 | Site 2 of 3 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 BC8050 Number of Bus Terminals 64 (255 with K-bus extension) Max. number of bytes fieldbus 512 byte input and 512 byte output Max. number of bytes process image 512 byte input and 512 byte output Digital peripheral signals 1,020 inputs/outputs Analog peripheral signals 128 inputs/outputs Protocol KS8000 protocol (open, serial protocol) – Modbus RTU/Modbus ASCII can be selected via address switch. Data transfer rates 1.2 kbaud…38.4 kbaud Bus interface D-sub 9-pin, RS485 Power supply 24 V DC (-15 %/+20 %) Input current 320 mA max. Starting current 2.5 x continuous current Current supply K-bus 1750 mA Power contacts max. 24 V DC/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. rating/installation pos. IP20/variable Approvals/markings CE, UL, ATEX, IECEx Ex marking ATEX: II 3 G Ex nA IIC T4 Gc IECEx: Ex ec IIC T4 Gc Housing data BKxx50, BCxx50 Design form compact terminal housing with signal LEDs
BC8050 https://www.beckhoff.com/bc8050 Technical changes reserved As of 01.09.2023 | Site 3 of 3 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