User guide

5 - 31
PN 074-566-P1B
Composer Elite Operating Manual
Table 5-21 Status commands
S
Command
ID
Name Parameter Range
(low/high)
Data
Type
Note
0 Current Data Reserved (U20 - Bit 31) Must always be 0.
Bit Pattern (U20 - Bit 30) The value of the 4 Byte word returned.
Measurement Mode
(U20 - Bit 29)
0-6 Encode 0 = Idle
1 = Ready
2 = Search
3 = Track
4 = Quick Track
6 = Baseline
Concentration
(U20 - Bit 28)
(mole%) Float The current concentration value.
(mole%)
Temperature 1
(U20 - Bit 27)
0.0 -
71.00(ºC)
99.999
Float The current temperature value of
Acoustic Sensor's resonant chamber.
99.999 if cable is disconnected.
Temperature 2
(U20 - Bit 26)
0.0 -
75.00(ºC)
99.999
Float The current temperature value of
Acoustic Sensor's inlet tube. 99.999 if
cable is disconnected.
Errors
(U20 - Bit 25)
0 - 0xFFFF
FFFF
Encode Current error value. See Table 5-22 on
page 5-32.
Warning
(U20 - Bit 24)
0 - 0xFFFF
FFFF
Encode Current warning value. See Table 5-23
on page 5-34.
Heater Status 1
(U20 - Bit 23)
0-6 Short Status of Acoustic Sensor's resonant
chamber heater:
0 = Off
1 = Not at Temperature
2 = At Temperature
3 = Failed
4 = Cable Disconnected
5 = Near Temperature
6 = Over Temperature
Heater Status 2
(U20 - Bit 22)
0-6 Short Status of Acoustic Sensor's inlet tube
heater:
0 = Off
1 = Not at Temperature
2 = At Temperature
3 = Failed
4 = Cable Disconnected
5 = Near Temperature
6 = Over Temperature
Sample Number
(U20 - Bit 21)
0-255 Byte The current sample number.
Frequency (U20 - Bit 20) Float The current frequency.
Amplitude (U20 - Bit 19) Float The current amplitude.
Reserved
(U20 - Bits 18-0)
Must always be 0.