Dawn CONTROL-1500A Manual page 89

control-1500B Single Axis Antenna Controller
A C program has been written which allows a user to exercise the control-1500. The program runs
on an IBM PC (or compatible - running DOS) and was designed to aid the software developer
who is writing programs to control the control-1500. All of the commands listed above can be sent
to the controller. The program features three windows. In the top window the user is
prompted for commands to send to the controller. In the middle window, the command strings
sent to the controller are displayed. The bottom window displays all characters received from
the controller. The source code is included with the program and a developer may examine
and freely use any of the routines. A disk containing this program is included with each
controller.
MESSAGE DELIMITERS
Here are the delimiters used with SA bus messages, along with their value in hex and decimal.
ASCII name
STX
ETX
ACK
NAK
DAWNco • 3340 S. Lapeer Rd • Orion, MI 48359-1320 • Ph (248) 391-9200 • Fax (248) 391-9207 • sales@DAWNco.com
hex value decimal value
2 2
3 3
6 6
15 21
Appendix E Communications Protocol 82