Allen-Bradley InView Marquee 2706-P42, User Manual

Page: 40 / 212

Publication 2706-UM016A-EN-P - June 2002
3-4 Serial ASCII Communications
2. Set up ladder logic and controller tags. The example below
illustrates this:
3. The tag set-up for this example is as follows:
•
Toggle is of type DINT
•
Message_send is of type SERIAL_PORT_CONTROL
•
Message is of type SINT[50]
Using the CompactLogix
out Channel Zero or One
1. Open a new application.
2. Then set up the controller properties by right-clicking on the
controller name and selecting properties and then the serial port
tab shown on the next page. The ladder is the same as a
ControlLogix except that the user can select either channel zero
or one.
ER
0
toggle.0
EN
DN
ASCII Write
Channel 0
0
String Length 0
Characters Sent 0
Source
message [ 0 ]
SerialPort Control message_send
AWT