LumaSense Technologies M340 - Manual (Page 18)

M340 Manual Communications Port 18
RS485 wiring
The blackbody was shipped with the controller set at the following com port parameters:
Baud: 1200
Data Bits: 7
Stop bits: 1
Parity: odd
To alter these parameters, see Section 4.4.
5.3 Communication Command Set
The complete command set is extensive. For the purpose of brevity, only a few important ones
are shown here. For more information, the controller instruction manual may be requested from
LumaSense.
Command line to read current blackbody temperature:
#01R00<CR>
Controller response:
<LF>#01R00=20.0C
Command line to read current blackbody setpoint:
#01R01<CR>
Controller response:
<LF>#01R01=20.0C
Command line to change blackbody setpoint:
#01M01 0200C<CR>
In the Appendices, there is a typical QBASIC program that reads current temperature and
increments setpoint at 10 °C intervals: