Laser beta lasermike LS8000-3 - Manual (Page 124)

LaserSpeed 8000-3 Instruction Handbook
RS-232/RS-422 Communication
Part No. 93463 / Drawing No. 0921-01561 Page 124 of 221 Revision A (Sep 2007)
For example: if the RS-232 port is configured for 38.4kBaud, 7N2, and the RS-
422 baud rate is set to 115.2k, 8N1, the COMM light will blink 4 sets of 4
Orange blinks with the Valid LED turned OFF, followed by 4 sets of 2 Blue
blinks with the valid LED turned ON.
Automatic Baud Rate Detection
The LS8000-3 can automatically detect the baud rate and framing that you are
using during the first 20 seconds after power is applied to the gauge. This is to
make it possible to recover if you set the baud rate to a rate too high for your
PC to support, or if the RS-232 baud rate is too high for the length of cable you
are using. The Autobaud feature operates on both the RS-232 and RS-422
serial ports independently.
At power-on, the LS8000-3 loads the Baud Rate & Framing settings for the
RS-232 and RS-422 serial ports from non-volatile memory and listens for
commands. For the first 20 seconds after power-on, the serial port is
monitored for activity, and the baud rate is measured. If a carriage return (hex
0x0d) is received during this time, the gauge ignores the baud rate stored in
non-volatile memory, and switches to the measured baud rate. The gauge will
use this baud rate until the power is cycled again, or a configuration setting is
changed, at which point it will revert to the last stored setting. After
communications are established, you can change the stored setting by
configuring it with LaserTrak, or by sending a command with a terminal
program such as HyperTerminal. To ensure that communications is not lost
again, the baud rate should be set before attempting to change any other
parameters.
Method 1
1) Turn off power to the LS8000-3
2) Start LaserTrak, but don't click the Search button yet
3) Turn on the LS8000-3, and wait for the COMM light to start flashing (or
wait for 10 seconds if you can't see the light)
4) Click Search—the LS8000-3 should be found automatically
5) In LaserTrak, click Tools LaserSpeed Configuration
6) Select the Communication tab
7) Select a new baud rate, and click Update