OTT PLS 500, Руководство по эксплуатации

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Command Response Description
aRC0!
a<value1><value2><value3> …
… <value4> <CRC><CR><LF>
The OTT PLS 500 continuously measures level/pressure and
temperature, optionally calculates the discharge and
requests a CRC value (Cyclic Redundancy Check). This com-
mand permits to retrieve measurement results, even without
the combination of commands
aM! / aD0! ; for details, see
command aD0! after aM! . Requires measurement type
"continuous measurement"; extended command
aXXC<value>!
aM1! atttn<CR><LF>
and after 0/1 … 60 seconds
a<CR><LF>
Start measurement – including statistical values
a
– sensor address
ttt
– time in seconds until the sensor has determined
the measurement result
response OTT PLS 500: 0/1 … 60 seconds
1)
n
– number of measured values
response OTT PLS 500:
8
aD0!
a<value1><value2><value3> …
… <CR><LF>
Send data (after aM1! )
a – sensor address
<value1> – last single measured value "level/pressure"
within the averaging time
2)
<value2> – water temperature
2)
<value3> – mean of measured values "level/pressure"
within the averaging time
2) 3)
aD1! a<value4><value5><value6>
…
…
<CR><LF>
Send data (after
aM1!
)
a
– sensor address
<value4>
– minimum of measured values "level/pressure"
within the averaging time
2) 3)
<value5>
– maximum of measured values "level/pressure"
within the averaging time
2).3)
<value6>
– median of measured values "level/pressure"
within the averaging time
2) 3)
aD2! a<value7><value8><CR><LF>
Send data (after aM1! )
a – sensor address
<value7>
– standard deviation of measured values
"level/pressure" within the averaging time
2).3)
<value8>
– device status; see
aD2!
after
aV!
aMC1! atttn<CR><LF>
and after 0/1 … 60 seconds
a<CR><LF>
Start measurement and request CRC (Cyclic Redundancy
Check); for details, see command
aM1! .
The response to the following aD0! … aD2! command is
extended by a CRC value:
a<valueX><valueX><valueX><CRC><CR><LF>
aC1! atttnn<CR><LF>
Start concurrent measurement (simultaneous measurement
with multiple sensors on one single bus line); for details, see -
command
aM1!
. The number of measured values in the
response to this command has two digits:
nn
=
08
.
aCC1! atttnn<CR><LF>
Start concurrent measurement (simultaneous measurement
with multiple sensors on one single bus line) and request
CRC (Cyclic Redundancy Check); for details, see command
aM1! . The number of measured values in the response to
this command has two digits: nn = 08 . The response to the
following aD0! … aD2! command is extended by a CRC
value: a<valueX><valueX><valueX> …
… <CRC><CR><LF>
1) depending on the set averaging time; extended command aXXM<value>!
In the measurement type "continuous measurement" the time is always 0 seconds (with the exception of the first interval after the start)!
2) for measured value formats, see aD0! after aM! (depending on the set unit)
3) determined from 2 … 238 single measurements of a measurement interval (see command aXXC! )
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