Command
Response
Description
▶
Reset pressure probe to factory settings including communication settings
aXSF+1!
a<CR><LF>
Reset pressure probe
a
– sensor address
Resets all settings – including potentially changed commu -
nication settings on the RS-485 interface (Modbus, SDI-12)
to factory values (delivery state according to the ordered
variant code).
RS-485 protocol
➝
– Modbus; measurement type continu-
ous measurement, interval mode
– SDI-12; measurement type single
measurement
Units
➝
default metric or imperial
▶
Set calculation method discharge measurement
aXDC<value>!
aXDC!
a<value><CR><LF>
a<value><CR><LF>
Set calculation method
Read calculation method
a
– sensor address
<value>
– +0: deactivated; factory setting
+1: activated, calculation method rating table
+2: activated, calculation method according to
Standard ISO 1100-2, exponential formula
Q = p (h-e)
β
h = level at water surface
e = effective level at discharge = 0
β
= gradient of the rating curve
p = constant which numerically corresponds
to discharge at (h-e) = 1
▶
Create table entry in rating table (calculation method rating table)
aXDA<value1>
…
…
<value2>!
a<value1><value2><CR><LF>
Create table entry
a
– sensor address
<value1>
– water level at related discharge
<value2>
– discharge at related water level
Notes
– precondition: calculation method rating table is activated
– maximum 50 table entries
– entries are sorted automatically
– unit water level: as specified by
aXSU!
(if a pressure unit is set, "m" is used alternatively)
– unit discharge: as specified by
aXSD!
Example
aXDA<+5.750><+63.000>!
▶
Enter coefficient for discharge measurement (calculation method exponential formula)
aXDA<value1>
…
…
<value2>
…
…
<value3>!
a<value1><value2><value3>
…
…
<CR><LF>
Set coefficient
a
– sensor address
<value1>
– factor "e" of exponential formula; offset;
factory setting = +0.000
<value2>
– factor "p" of exponential formula; scaling;
factory setting = +1.000
<value3>
– factor "
β
" of exponential formula; exponent;
factory setting = +1.000
Note
– precondition: calculation method exponential formula is
activated
Example
aXDA<+1.260><+21.800><+2.540>!
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