7.
INITIAL
SETTING
OF
TRANSMISSION CONTROL DATA TO
BUFFER
MEMORY
MELSEGA
7.2
Setting the Transmission Method
for
RS-232C
Set the transmission method used with the RS-232C interface which connects
the AJ71 C24 to the external device. Both haif-duplex and full-duplex transmis-
sions can be used for setting. If the halfduplex transmission is used, the
following settings should be made:
.Whether or not the AJ71C24 continues or stops transmission when the
AJ71 C24 and the external device have begun sending data to each other at
the
same time. (Priorityhon-priority setting at simultaneous transmission)
.Whether or not the AJ71 C24 transmits data again from the beginning or from
the point where transmission stopped when
it
restarts transmission. (Trans-
mission method when the transmission restarts.)
Set the transmission method which conforms to the specifications of the
connected device.
I
POINT
I
I
.When full-duplex transmission is used, settings with buffer memory
addresses lOFH, llOH, and 11 1 H are not requlred.
.Section 5.2 gives settings required for halfduplex transmission.
.When using half-duplex transmission, set the RS-232C CD terminal
check to "Enabled" (see Section 7.1).
t
I
1
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1
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ci
7-3
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