Specifications

Chapter 5 - Software RS-422 And RS-485 Applications Ebook
Page 69 of 137 Manual Documentation Number: <DocNumber>
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commands with the appropriate address of the slave. There is no data
echo or turn around delays to consider. Since each of the slave
transmitters share the same pair of wires, care must be taken that the
master never requests data from multiple nodes simultaneously or data
collisions will result.
Figure 52: Four-Wire Master-Slave System