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Connecting to a host terminal 37 – Red Lion LEGEND User Manual

Page 39

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SERIAL CONNECTIONS (Cont’d)

-37-

CONNECTING TO A HOST TERMINAL

Six Legend units are used to monitor and control parts

packaging machines in a plant. Legend units are located at
each machine in the production area of the building. A
communication line is run to an Industrial computer located
in the production office. The drawing shows the line
connection. Each Legend is programmed for a different
address and are all programmed for the same baud rate and
parity as the computer (ex 9600 baud, parity even). An
application program is written to send and receive data from
the units using the proper commands.