7.3 Meta data commands
Command
Response
Description
aIM!
aIM1!
aIM2!
aIMC!
aIMC1!
aIMC2!
aIC!
aIC1!
aIC2!
aICC!
aICC1!
aICC2!
aIHA!
aIHB!
atttn<CR><LF>
atttn<CR><LF>
atttn<CR><LF
atttn<CR><LF>
atttn<CR><LF>
atttn<CR><LF>
atttnn<CR><LF>
atttnn<CR><LF>
atttnn<CR><LF>
atttnn<CR><LF>
atttnn<CR><LF>
atttnn<CR><LF>
atttnnn<CR><LF>
atttnnn<CR><LF>
The response is identical to the corresponding measurement
command (
aM!
,
aM1!
,
aM2!
,
aMC!
,
aMC1!
, …). These
commands did not start a measurement! For a description of
the responses, see commands
aM!
,
aM1!
,
aM2!
,
aMC!
,
aMC1!
, … .
aIV!
atttn<CR><LF>
The response is identical to the corresponding command
"Start system test" (
aV!
). This command does not start a sys-
tem test! For a description of the response, see command
aV!
aIM_00X!
1)
aIM1_00X!
2)
aIM2_00X!
3)
aIMC_00X!
1)
aIM1C_00X!
2)
aIM2C_00X!
3)
aIC_00X!
1)
aIC1_00X!
2)
aIC2_00X!
3)
aICC_00X!
1)
aICC1_00X!
2)
aICC2_00X!
3)
aIHA_00X!
4)
aIHB_00X!
4)
aIV_00X!!
3)
a,<field1>,<field2>,…
…<field3>;
<CRC>
<CR><LF>
The OTT PLS 500 sends meta data for the related measured
value
<valueX>
5)
in the form of three data fields. These
commands do not start a measurement!
The measured value code (
<field1>
) and the unit designa-
tions (
<field2>
) correspond to the "SHEF" standard (see
"Standard Hydrometeorological Exchange Format (SHEF) –
Code Manual" of the "National Weather Service".
a
– sensor address
<field1>
– measured value code
· water level:
HA
·
HB
· temperature:
TW
·
TA
·
TD
· humidity:
XR
· pressure:
PE
· device status:
OS
<field2>
– unit
· length:
M
·
CM
·
MM
·
INCH
·
FT
· pressure:
BAR
·
MBAR
·
KPA
·
PSI
· temperature:
DC
·
DF
·
DK
· humidity:
%
· discharge:
CMS
·
LS
·
CFS
· acceleration:
mg
· angle:
DEG
(Continuation of description see next page)
1)
Variable ...X: from 1 to 3 or 4
2)
Variable ...X: from 1 to 8
3)
Variable ...X: from 1 to 9
4)
Variable ...X: from 1 to 17
5)
Part of the response to the command
aD0!
,
aD1!
,
aD2!
(after
aM!
,
aM1!
,
aMC!
, …)
6)
https://vlab.noaa.gov/web/mdl/shef-information (
BAR
·
KPA
·
MM
➝
no official SHEF Code)
30