Product manual

CAD Interface Installation
62 025-9158L
3. Press the space bar on the terminal three times and the Main Menu will appear.
4. From the Main Menu, select the Port Configuration menu and make the
appropriate selections to produce the following port configuration:
Key CAD Parameters Current Settings
{1} Change to Data Logger Mode: CAD Mode
{2} baud Rate: 9600
{3} CAD Retry Time-out: 2.00 (Sec.Hun)
{E}xit
5. Now place the Option Switches in the following positions (turn Switch 7 off):
SW-1 ON Address 1 = Master Model 26
SW-2 OFF
SW-3 OFF
SW-4 OFF
SW-5 OFF
SW-6 ON Configuration at 9600 Baud
SW-7 OFF CAD Mode enable
SW-8 OFF
6. You are now communicating with the CAD interface program. You may not see
the characters on the communications screen unless you are in the “Monitor
Mode”, since the protocol uses 8 bit data in which many of the control characters
will not be displayed on an ASCII screen. At this point the Model 26 will try to
establish communication by sending the Null packet.
Protocol Level
Packet Types
Each transmission, whether originating from the CAD or the Model 26, is formed in a
packet. The general form of the packets is as follows: