Campbell Scientific SR50-L CSC Ultrasonic Distance Sensor - Manual (Page 15)

SR50 Sonic Ranging Sensor
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TABLE 1. SR50 SDI-12 Command List
CR10X and SDI-12 FUNCTION DATA OUTPUT
CR23X P105 COMMANDS
Parameter 2 When using
Options non-Campbell
Loggers
0 aM First Target (Meters) D1
1 aM1 First Target (Meters) D1,Q1
with Quality Number
2 aM2 Multiple Targets (Meters) D1,D2,D3
3 aM3 Multiple Targets (Meters) D1,D2,D3,Q1,Q2,Q3
with Quality Numbers
4 aM4 First Target (Feet) D1
5 aM5 First Target (Feet) D1,Q1
with Quality Number
6 aM6 Multiple Targets (Feet) D1,D2,D3
7 aM7 Multiple Targets (Feet) D1,D2,D3,Q1,Q2,Q3
with Quality Numbers
8 aM8 First Target (Meters) D1
No Retries
N/A aD0 Send Data DEPENDENT UPON
COMMAND SENT
10 aV Start Verification calculates NUMERIC SIGNATURE
ROM Signature
aI Send Identification 012CAMPBELLSR50 1.1
NOTE: There are 2 spaces between SR50 and 1.1
0-- aC Concurrent Measurement* D1
n-- aCn Concurrent Measurements* Same as M – M8
Where a = address of SDI-12 device.
Where n = numbers 1 to 8.
* = see APPENDIX A for details about Concurrent Measurements.