BK3120 - BECKHOFF

BK3120 - BECKHOFF
Stok Durumu: İkinci El
Marka: Beckhoff
Ürün Kodu: BK3120
Stok Miktarı: Stok Sorunuz
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BK3120 | PROFIBUS “Economy plus” Bus Coupler

PROFIBUSThe “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 automation 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 parameterisation or to set/correct limit values for analog Bus Terminals.

Baud rates of up to 12 Mbaud are automatically recognised by the Bus Coupler, allowing the transmission speed to be adapted to meet the needs of the particular technical process.

System data PROFIBUS | BK3120
Number of I/O stations 100 with repeater
Number of I/O points approx. 6,000, depending on the master
Data transfer medium shielded copper cable, 2 x 0.25 mm²
Max. cable length
1,200 m 1,000 m 400 m 200 m 100 m
Data transfer rates
9.6/19.2/
93.75 kbaud
187.5 kbaud 500 kbaud 1,500 kbaud …3, 6, 12 Mbaud
Data transfer time
approx. 3 ms (10 stations for 32 bit input and output each) approx. 0.5 ms
Technical data BK3120
Number of Bus Terminals 64 (255 with K-bus extension)
Max. number of bytes fieldbus 128 byte input and 128 byte output
Data transfer rates automatic detection up to 12 Mbaud
Bus interface 1 x D-sub 9-pin socket with shielding
Power supply 24 V DC (-15 %/+20 %)
Input current 70 mA + (total K-bus current)/4, 500 mA max.
Current supply K-bus 1750 mA
Power contacts 24 V DC max./10 A max.
Electrical isolation 500 V (power contact/supply voltage/fieldbus)
Weight approx. 170 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 CE, UL, Ex, GL

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BK3120 - BECKHOFF