OTT PLS 500, Руководство по эксплуатации

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Command Response Description
Continuous measurement, floating mode: in the floating
mode, individual measurements are also taken continuously
one after the other, and starting from the most recent value,
the calculation of the mean value is carried out backwards.
The OTT PLS 500 also immediately responds to an
aRx!
command with a measured value. However it is updated
with each individual measurement.
1 2 3 4 Single measurement
250 ms 250 ms 250 ms 250 ms
n n+1 n+2 n+3
Measurement interval m: 1 s
250 ms 250 ms 250 ms 250 ms
n+4 n+5 n+6 n+7
Measurement interval m+1: 1 s
250 ms 250 ms 250 ms 250 ms
n n+1 n+2 n+3
250 ms 250 ms 250 ms 250 ms
n+4 n+5 n+6 n+7
250 ms 250 ms 250 ms 250 ms
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▶
Set/read offset for level measurement
aXAB<value>!
aXAB!
attt1<CR><LF>
Set offset value
Read offset value
a – sensor address
<value> – pbbbb.eee
1)
Input/output without leading zeros!
Value range: –9999.999 … +9999.999
Factory setting= +0.000
With this command, you can apply a linear offset (posi-
tive/negative) to a level measurement value. After setting the
offset, the OTT PLS 500 automatically starts a measurement.
Then check the measured value with the
aD0! command.
Caution
This command overwrites a possibly set reference value!
Example
Measured value = +10.040 m
Offset = –0.200 m
Output = +9.840 m
Notes
– A subsequent change of the unit ( aXSU<value>! ) may
result in rounding errors of ±0.001.
– If the unit of level measurement is set to pressure values
( aXSU<value>! ), a measurement is already active or an
error has occured, the OTT PLS 500 responds with a
service request (
a<CR><LF> ).
1)
depending on the set unit; extended command
aXSU<value>!
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