What is allen bradley df1?

Allen Bradley DF1 is a serial communication protocol used for communication between Allen-Bradley programmable logic controllers (PLCs) and external devices such as computers, HMIs, and other PLCs. DF1 offers reliable and robust communication and is widely used in industrial automation applications. It operates at a data rate of up to 19.2 kbps and can support both full duplex and half duplex communication modes. DF1 protocol also supports a variety of message types such as read, write, and block transfer messages. Several versions of DF1 are available, including DF1 Full Duplex, DF1 Half Duplex Master/Slave, and DF1 Radio Modem. Overall, Allen Bradley DF1 is a well-established and widely used protocol in industrial automation for reliable and efficient communication between PLCs and other devices.