Digital Output Pressure Sensors
0404
0404
04
16-Mar-03
Command Summary Table:
Command Description Response
RA<cr> Read Accuracy String RA=[Accuracy String]<cr>
RC<cr> Read Captured Pressure RC=[hhhh]<sp>[eeee]<cr>
RH<cr> Read High Resolution Pressure RH=[hhhh]<sp>[eeee]<cr>
RL<cr> Read Low Resolution Pressure RL[llll]<sp>[eeee]<cr>
RM<cr> Read Model RM=[Model String]<cr>
RR<cr> Read Pressure Range RR=[pressure Range String]<cr>
RS<cr> Read Serial Number RS=[S/N String]<cr>
RT<cr> Read Temperature RT=[Temperature Range String]<cr>
U[S/N String][Command]<cr> Unique Command For Matching S/N U[S/N String],sp>[Response String]
For Non-matching S/N {null}
WC<cr> Capture Pressure {null}
Notations:
<> indicates a single ascii character
[] indicates an ascii string
{} text within the braces describes the response (this is essentially a comment)
“” text within quotes represents a literal ascii text string
Definitions:
Term Name Description
<cr> Carriage Return ascii Carrage Return. This is a command/response delimiter
<sp> Space ascii Space Character
[Accuracy String] Accuracy String Part accuracy string. Given in % full scale output.
Example: 0.250 %FSO
Notes:
1.) There is a space between the numeric accuracy “0.250”
and units “%FSO.”
2.) FSO stands for Full Scale Output (full scale output is
determined by the Pressure Range String.)
[hhhh] High Resolution Output This is a four character ascii string representing a
hexidecimal value.
Example: 3F7C
Represents an output count of 16,252
Note: the output is forced to “8000” upon an error.
except error bit 8, see error bit codes.
[llll] Low Resolution Output This is a four character ascii string representing a
hexidecimal value.
Example: 1D58
Represents an output count of 7,512
Note: the output is forced to “8000” upon an error.
except error bit 8, see error bit codes.
[Model String] Model String Part Model as given in the data sheet (also order number.)
The general model syntax is
[Full Scale Pressure]<sp>[Pressure Units]-[Pressure Model]-DO
Example: 100 PSI-D-DO
Where:
Full Scale Pressure=100
Pressure Units=PSI (inH2O, mbar or mmHg available)
DO represents Digital Output
Notes:
1.) Exception to this syntax is the Barometer.
2.) Custom models may be different.
