Laser Technology TruSense S300 Series, Руководство пользователя

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LTI TruSense S300 Series Integration Manual 3nd Edition
Page 39
Copyright © [2016] Laser Technology, Inc. All Rights Reserved. Unauthorized duplication, in whole or in part, is strictly prohibited.
Command:
Example:
8A5! 5<CR><LF> The sensor ’ s SDI-12 address changed from „ 8 ‟ to „ 5 ‟ .
“aM!” Start Measurement defined by Target Mode “aXHn!” or Serial Command $DM
This command is used to request measurement(s). The “ aD0! ” command will then be used to retrieve
the data when it ’ s ready.
Command:
Example: 8M! 80025<CR><LF> Sensor 8 will have 5 measurements in 2 seconds.
followed by: (in approximately 2 seconds)
8<CR><LF> Service Request – the measurements are ready.
“aM5!” Start Measurement for “Temperature”
This command is used to request measurement(s) for the “ Temperatur e” data. The “ aD0! ” command will
then be used to retrieve the data when it ’ s ready.
Command:
command
! = SDI-12 command termination character
ttt = the specified time, in seconds, until the sensor will have data
ready
n = the number of measurements being accumulated
Example: 8M5! 80015<CR><LF> The sensor will have 5 “ Temperatur e” data in 1
second. followed by: (in approximately 1 second)
8<CR><LF> Service Request – the measurements are ready.
“aMCn!” Start Specified Measurement with CRC
These commands are used to request specified measurement(s) defined by “aXHn!” or Serial Command $DM
and temperature data and include the CRC when it ’ s retrieved. The “ aD0! ” command will then be used to
retrieve the data with the included CRC when it ’ s ready. These commands are the same as the “ aM! ” or
“aM0! and “ aM5! ” c ommands except that when the measurement data is retrieved, it will include a CRC.
Command:
aAb!
Response: b<CR><LF>
where: a = specified sensor ’ s current SDI-12 address
A = Change Address SDI-12 command
b = sensor ’ s new SDI-12 address ( „ 0 ‟ to „ 9 ‟ , „ A ‟ to „ Z ‟ , „ a ‟ to
„ z ‟ )
! = SDI-12 command termination character
aM!
Response: atttn<CR><LF>
where: a = specified sensor's current SDI-12 address
M = Start Measurement for “ First #1 ” measurement data SDI-12
command
! = SDI-12 command termination character
ttt = the specified time, in seconds, until the sensor will have data
ready
n = the number of measurements being accumulated
aM5!
Response: atttn<CR><LF>
where: a = specified sensor ’ s current SDI-12 address
M5 = Start Measurement for “ Temperatur e” measurement data
SDI-12
aMCn!
Response: atttnn<CR><LF>
where: a = specified sensor ’ s current SDI-12 address
MCn = Start Measurement for specified measurement data with CRC
SDI-12