OTT Pluvio 2 S - Page 31

More information on the SDI-12 basic commands can be found in the document SDI-12; A Serial-Digital Interface
Standard for Microprocessor-Based Sensors, Version 1.3 (see Internet page www.sdi-12.org).
Command Response Description
(continuation
of aD2!)
<value9> – Status
pbbbb
+0 = Precipitation gauge working
p
roperly
+1 = W:Bucket level ≥ 80 %
+2 = W:USB interface is/was connected
+4 = W:Restart (due to power failure)
+8 = W:Restart (due to firmware)
+16 = W:Weight change out of range
+32 = W:Supply voltage < 7 V
+64 = A: Weight measurement unstable
+128 = A: Weight measurement incorrect
+256 = A: Weight below minimum
+512 = A: Weight above maximum
+1024 = A: No weight calibration
W = warning; A = alarm.
When the OTT Pluvio
2
S unit outputs other values than those
indicated here, several events have occurred simultaneously.
In such a case, the individual values are added up.
Example: “+34” ➝ Sum obtained from warnings “+2” and
“+32”. The status information output – assuming the cause
has been rectified – will be reset the next time the command
aM! is used.
aD0!*
* after
aM1!, aMC1!,
a
C1!, aCC1!
a<value1><value2><value3> …
… <CR><LF>
Send data
a – sensor address
<value1> – Temperature of electronics unit
(approximate ambient temperature incl. delay)
[°C]: pbb.e (–40.0 … +85.0)
[°F]: pbbb.e (–40.0 … +185.0)
<value2> – Supply voltage
[V]: pbb.e (+4,5 … +28.0)
<value3> – Temperature of orifice ring rim
[°C]: pbb.e (–40.0 … +85.0)
[°F]: pbbb.e (–40.0 … +185.0)
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