The “Economy plus“ is PROFIBUS Bus Coupler BK3xx0. The K-bus technology allows the connection of up to 255 nos. distributed Bus Terminals to one Bus Coupler.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.BK3120 incorporates the PROFIBUS DP V1 services.Direct access to the Bus Coupler or Bus Terminal register Baud rates of up to 12 Mbaud
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