BECKHOFF BK3120

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Bus Coupler

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Bus Coupler

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 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.
 
Technical data           
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            1,750 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
 

Ficha técnica

 

BK3120

Ficha de datos

Modelo
BK3120
Marca
BECKHOFF
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