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BC2000 | Lightbus Bus Terminal Controller

The Bus Terminal Controller BC2000 is a Bus Coupler with integrated PLC functionality and has a fieldbus interface for the Lightbus. The BC2000 is an intelligent slave and can be used as a non-central intelligence in the Lightbus system. One unit consists of the Bus Terminal Controller, any number of terminals between 1 and 64, and a bus end terminal. The Bus Terminal Controller is programmed using the TwinCAT programming system according to IEC 61131-3. The configuration/programming interface of the BC2000 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 Bus Terminal Controller’s default setting. 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 BC2000 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 Lightbus | BC2000
Programming TwinCAT (via programming interface or fieldbus)
Program memory 32/96 kbytes
Data memory 32/64 kbytes
Remanent data 512 bytes
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

 

Technical dataBC2000
Number of Bus Terminals 64
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 512 inputs/outputs
Analog peripheral signals 128 inputs/outputs
Configuration possibility via KS2000 or fieldbus
Data transfer rates 2.5 Mbaud
Bus interface 2 x standard fibre optic connector Z1000 (plastic fibre), Z1010 (HCS fibre)
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
Current supply K-bus 1,750 mA
Power contacts 24 V DC max./10 A max.
Electrical isolation 500 V (power contact/supply voltage)
Weight approx. 170 g
Operating/storage temperature 0…+55 °C/-25…+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 CE, UL, Ex

 

Accessories 
KS2000 configuration software for extended parameterisation
TwinCAT PLC programming system conforms to IEC 61131-3
Cordsets cordsets and connectors
FC200x-0000 PC Fieldbus Cards with PCI interface
C1xxx PC Fieldbus Cards with ISA, VME bus, S5 interface

 

Ordering information Description
BC2000 Lightbus Bus Terminal Controller for up to 64 Bus Terminals
BK20x0 Lightbus Bus Coupler

 

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