The DFP 21A is a fieldbus interface card designed for industrial automation systems. It features a PROFIBUS DP protocol with a 9-pin D-Sub connection and supports baud rates up to 1.5 MBaud. The module includes an integrated bus terminating resistor via the Profibus connector and is compatible with various PROFIBUS protocol variants, including DP and DP-V1 according to IEC 61158. It operates with a power consumption of approximately 2 W and can be externally powered with a DC 24 V supply. The DFP 21A serves as a high-precision analog output control module, facilitating efficient and reliable communication within industrial networks.

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