I

I/O-Modules
Fieldbus Terminals
Interbus-S

Product Description

The BK4000 and BK4010 bus couplers connect the INTERBUS-S 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. The BK4010 economy variant permits particularly economical creation of peripheral interfacing connections. Up to 64 digital input/output terminals can be connected.

The bus coupler recognises the connected terminals and automatically generates the affiliations of the inputs/outputs to the bytes of the process image. The first input/output signal is inserted in the first bit of one word (LSB), beginning from the left. The bus coupler inserts further signals in this word. Inputs and output are clearly separated. The bus coupler automatically begins a further word if the number of inputs or outputs exceeds 16 bits.

Interbus has been established as an open fieldbus system since 1987. Interbus has a ring structure, and up to 256 stations can be operated in a ring. Data transmission takes place at 500 kBaud. Due to the efficient data transmission, sensor and actuator data can be transferred over great distances.

Order number	Description
BK4000	INTERBUS - coupler for up to 64 bus terminals
BK4010	INTERBUS - coupler for up to 64 digital bus terminals
BK4500	INTERBUS - coupler with fiber- optic connection, see page 22
KL9010	End terminal
KS2000	Connecting cable, configuration software on CD for Windows 9x/NT

Complex signal processing for analog I/Os, position measurement

The BK4000 bus coupler support the operation of all bus terminals. As far as the user is concerned, handling of the analog inputs/outputs is no different to other series. The information is available in the process image of the controller for processing in the form of an byte-array.

The analog and multifunctional bus terminals can be adapted to each specific application using the KS2000 configuration set. Depending on the type, the analog bus terminals' registers contain temperature ranges, gain values and linearisation characteristics. Using the KS2000 software, the required parameters can be set on a PC. The bus terminal stores settings permanently and in a fail safe manner.

Optionally, the bus terminals can also be controlled by the control system. Via function blocks (FBs), the Programmable Logic Controller (PLC) or the Industrial Personal Computer (IPC) handles configuration of the complete periphery during the start up phase. If required, the controller can upload the decentrally created configuration data in order to centrally manage and store this data. Therefore, new adjustments are not necessary in the event of replacement of a bus terminal. The controller automatically sets the required setting on power up. This functionality is achievable through the use of the KS2000 software.

The Interbus coupler works with the protocol chip SUPI3 and supports the extended diagnostics of the Interbus master. Byte-by-byte addressing in the master is supported as from generation G4.

System data	Interbus (BK4000, BK4010)
Number of I/O modules	256
Number of I/O points	4096
Data transfer medium	LiYCY 3 x 2 x 0.22 mm²
Length between modules	max. 400 m
Data transfer rate	500 kBaud
Data transfer time (min.)	app. 1 ms in the case of 10 modules for 32-bit inputs and outputs each

Technical data	BK4000	BK4010
Number of bus terminals	64
Digital peripheral signals	256 inputs/outputs	256 inputs/outputs
Analog peripheral signals	32 inputs and 32 outputs	---
Configuration possibility	by KS2000
Maximum number of bytes	64 bytes I and 64 bytes O	8 bytes I and 8 bytes O
Bus connection	2 x D-SUB 9, plug and socket with shielding and vibration protection
Power supply	24 V DC (20...29 V DC)
Input current	70 mA + (total K-Bus current)/4
	500 mA max.	200 mA max.
Starting current	2.5 x continuous current
Recommended fuse	£ 10 A
K-Bus power supply up to	1750 mA 500 mA
Power contact voltage	24 V DC max.
Power contact current load	10 A max.
Dielectric strength	500 Vrms (Power contact / supply voltage / fieldbus)
Weight approx.	170 g	150 g
Operating temperature	0°C ... +55°C
Storage temperature	-25°C ... +85°C
Relative humidity	95%, no condensation
Vibrations/shock resistance	conforms to IEC 68-2-6 / IEC 68-2-27
EMC resistance Burst / ESD	conforms to EN 50082 (ESD, Burst) / EN 50081
Installation position	any
Type of protection	IP20

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