Appendix E
Appendix E RS-485 Network E
-7
E.3 RS-485 Data Flow Control
The RS-485 standard uses a single pair wire to send and receive data.
However, some controls to the direction of the data flow are required.
RTS (Request to Sent) and CTS (Clear to Sent) are the most commonly
used methods.
Figure E-6 RS-485 data flow control with RTS
Intelligent RS-485 Control
ADAM-4510 and ADAM-4520 are both equipped with an I/O circuit
which can automatically sense the direction of the data flow. No
handshaking with the host (like RTS, Request to Send) is necessary.
Any software, which is written for half-duplex RS-232, is compatible
with an ADAM network without modification required. The RS-485
control is completely transparent to the user.
To Next Page
Loading...
Need help?
General