7
a
M!
Start Measurement
Syntax:
a
M!,
a
MC!,
a
M1!,
a
MC1!,
a
M2!,
a
MC2!,
a
M3!,
a
MC3!,
a
M4!, or
a
MC4!
Description: Start a measurement, returns number of seconds till sample is ready to be
read. Sends service request when measurement is complete.
Examples: Command: 3M!
(request sensor at address 3 to make as measurement)
Response: 30011
(3 is the address, 001 is # of seconds, 1 is the # of values)
<after 1 second>
3
(sends address to confirm measurement is ready to be read)
Command: 3M1!
(request sensor at address 3 to get a 30 second average)
Response: 30011
(3 is the address, 031 is # of seconds, 1 is the # of values)
<after 31 seconds>
3
(sends address to confirm measurement is ready to be read)
Command: 3MC1!
(request sensor at address 3 to get a 30 second average
with CRC in returned data)
Response: 30011
(3 is the address, 031 is # of seconds, 1 is the # of values)
<after 31 seconds>
3
(sends address to confirm measurement is ready to be read)
a
C!
Start Concurrent Measurement
Syntax:
a
C!
Description: Start a measurement, returns number of seconds till sample is ready to be
read. Does
not
send service request when measurement is complete.
Example: Command: 3C!
(request sensor at address 3 to make as measurement)
Response: 30011
(3 is the address, 001 is # of seconds, 1 is the # of values)
<after 1 second, measurement is ready but no response is send>
Command: 3C1!
(request sensor at address 3 to get a 30 second average)
Response: 30011
(3 is the address, 001 is # of seconds, 1 is the # of values)
<after 1 second, measurement is ready but no response is send>
a
D
b
!
Send Data
Syntax:
a
D
b
!
Description: Requests output
b
(0-9) from Sensor
a
Examples: Command: 3D0! (request sensor at address 3 to send data block 0)
Response: 3+1234.56 (responds with Uncalibrated Concentration, C
u
)
Note: in response to certain commands, the data returned after a D
command may have a CRC value appended to it.
Since the LISST-ABS has only one output only the aD0! command is
required.
Содержание LISST-ABS
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