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BECKHOFF BK3120 Profibus Bus Coupler
Specifications
Manufacturer
BECKHOFF
Part No.
BK3120
Product Type
Profibus Bus Coupler
Number of Bus Terminals
64 (255 with K-bus extension)
Digital Peripheral Signals
Max. 1020 inputs/outputs
Analog Peripheral Signals
Max. 64 inputs/outputs
Max. Data Bytes (I/O)
128 bytes
Baud Rate (Auto Detection)
Up to 12 Mbaud
Bus Connection
1 x 9-pin shielded D-sub plug
Power Supply
24 VDC (-15% / +20%)
Input Current
70 mA + (total K bus current)/4, max. 500 mA
Starting Current
2.5 × continuous current
Recommended Fuse
Max. 10 A
K-bus Max Current
1750 mA
Power Contact Voltage
Max. 24 VDC
Power Contact Current Load
Max. 10 A
Dielectric Strength
500 V
Weight
Approx. 170 g
Operating Ambient Temperature
-25°C … +60°C
Storage Temperature
-25°C … +85°C
Relative Humidity
95%, non-condensing
The Economy plus version extends the existing PROFIBUS Bus Coupler series BK3xx0. The K-bus extension technology
allows the connection of up to 255 spatially distributed Bus Terminals to one Bus Coupler. The BK3120 has been designed
to accommodate requirements. The PROFIBUS protocols omit FMS operation in order to be able to transfer more user data
in DP mode, which for this Bus Coupler type can be 128 byte inputs and 128 byte outputs. The BK3120 incorporates
the PROFIBUS DP V1 services. These services allow direct access to the Bus Coupler register and the complex Bus Terminals
in order, for example, to change the parameterization or to set/correct limit values for analog Bus Terminals.
Product Applications
Manufacturing : Achieving efficient data exchange in automotive assembly and electronic product production lines.
Packaging Machinery: Used to control complex packaging processes and ensure precise logical operation responses.
Process Control: Conducting precise monitoring of signals such as pressure and temperature in chemical or fluid
processing factories.
Building : Integrating various I/O modules for comprehensive building management systems.
Claim Your Extra Discount: Contact Sales Manager Lisa Lin for Details
:+86 18965423501 
:sales7@amikon.cn 
:AMKPLC
Payment & Delivery
Payment Term: T/T
Lead Time: Usually 2-3 days
Delivery Ways: DHL,UPS,TNT,CHIRLINE,FEDEX
Major Business
ABB: Industrial robot parts of DSQC series,Bailey INFI90, DCS
Honeywell: 51/MU/MC/TC/CC ...
Triconex: 3008/3511/3625/3664/3721/3700A..
Bently Nevada: 3500/3300/330180-Cable..
Foxboro: FBM203/204/217/231, FCP240/270
Woodward: SPC valve position controller, PEAK15 digital controller
Siemens: 6DD/6DP/6ES5/6DR/6GK Series
Westinghouse Series: 1C/5X ...
General electric: IC693/IC697/IC695/DS200..
Schneider: 140 Series
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