Every automation engineer whether from the background of electrical or electronics or instrumentation and control knows the importance of Profibus Communication. This technical note is primarily for freshers in the field of automation covering the whole spectrum of PLC, SCADA, HMI, DCS, Industrial networking, AutoCAD, Panel Design, Motors and Drives etc.
Profibus DP stands for “Process Field Bus Distributed Peripherals”. The main advantage of profibusdp connection is that we can connect master with slaves. Here master is our main controller and slave is our field device. This comes under the study of industrial networking.
In s7-300 (Rack type controller), one rack equal to 11 slots and at a time maximum of 4 slots are controlled by one controller. s7-200 and s7-300 works on half duplex protocols. Protocol is nothing but a set of rules for sending and receiving the data. Similarly, HMI also works on half duplex protocol which supports 32 nodes ( or devices). Maximum distance between master and slave can be 32 kms. The transmission rate of profibus connection is 9.6 KBps to 12 Mbps. Repeaters are used to boost the signal. We prefer serial transmission instead of parallel transmission in long distance connection because of lesser transmission loss and reduced cost.
Profibus DP stands for “Process Field Bus Distributed Peripherals”. The main advantage of profibusdp connection is that we can connect master with slaves. Here master is our main controller and slave is our field device. This comes under the study of industrial networking.
In s7-300 (Rack type controller), one rack equal to 11 slots and at a time maximum of 4 slots are controlled by one controller. s7-200 and s7-300 works on half duplex protocols. Protocol is nothing but a set of rules for sending and receiving the data. Similarly, HMI also works on half duplex protocol which supports 32 nodes ( or devices). Maximum distance between master and slave can be 32 kms. The transmission rate of profibus connection is 9.6 KBps to 12 Mbps. Repeaters are used to boost the signal. We prefer serial transmission instead of parallel transmission in long distance connection because of lesser transmission loss and reduced cost.
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