Rockwell Automation 57C570 AutoMax PC3000 User Manual - Manual (Page 139)

11Ć11
AutoMax PC3000
2
3
4
7
5
6
20
10
2
3
4
7
5
20
(to user Trans pin)
(to user Recv pin)
(to user Sig Com)
(Trans Enable)
(Recv Buffer Status)
TXD
RXD
CTS
DSR
DTR
+12 V
In this configuration, no characters are lost by
the AutoMax program or user equipment
receiving characters.
User Equipment
Figure 11.11 Ć BiĆdirectional Flow Control
11.3 Accessing the Serial Card Ports
To enable the Ports A and B on the AutoMax PC3000 Serial card, you
must use the BASIC statement OPEN. The device names you use are
PORTA or PORTB.
See the AutoMax Enhanced BASIC Language instruction manual,
JĆ3675, for more information.
11.4 What to Do Next
Write any programs required for communicating with the serial
devices. For information about connecting a programming device to
the PC3000, see chapter 10.