Campbell PVS5120 Series, Instruction Manual

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PVS5120-Series Portable Samplers
48
TABLE 8-7. Generic Modbus® Control and Monitoring of the Sampler
CRBasic ModbusMaster()
Function Start Length Coil Name Description
1 or 15 1 1 00001 Start Start
1 or 15 2 1 00002 Serviced Serviced
1 or 15 3 1 00003 Auto Deploy Auto Deploy
Register*
3 or 16 1 1 40001 & 40002 Bottles Number of bottles in sampler.
3 or 16 3 1 40003 & 40004 SampPerBottle
Number of samples to be put in each
bottle(s).
3 or 16 5 1 40005 & 40006 NeverFull
Determines if the sampler loops without
stopping (must be manually serviced before
the sampler is full to prevent overflow).
3 or 16 7 1 40007 & 40008 PurgeTime1
Initial purge time, in seconds, that the
sampler hose is purged before collecting
sample.
3 or 16 9 1 40009 & 40010 LevelSetTime
Time, in seconds, to evacuate sample
chamber to desired sample volume.
3 or 16 11 1 40011 & 40012 DepositTime Time, in seconds, to hold pinch valve open to
allow sample to be deposited in bottle.
3 or 16 13 1 40013 & 40014 PurgeTime2
Final purge time, in seconds, that the sampler
hose is evacuated after collecting sample.
3 or 16 15 1 40015 & 40016 UsePurgeTime
A true/false variable which indicates if
PurgeTime2 is set independently of
PurgeTime1 or is set to same value as
PurgeTime1.
3 or 16 17 1 40017 & 40018 SetTimeOut
True/false value that indicates whether the
vacuum time is set by the user or
automatically set (2 x PurgeTime1).
3 or 16 19 1 40019 & 40020 TimeOut
Vacuum timeout, in seconds, to determine
how long sampler should attempt to collect a
sample before triggering an error.
3 or 16 21 1 40021 & 40022 SamplerType
The sampler type determined by the
corresponding integer value:
0 = PakBus, 1 = Pulse, 2 = Modbus,
3 = SDI-12
3 23 1 40023 & 40024 Bottle
Indicates bottle number that the sample is
deposited in (1 to 24). Value is always 1 for
composite sampler. (Read only.)
3 25 1 40025 & 40026 SampleCount
Displays the number of samples deposited in
to this bottle. Value is always 1 for never full
option. (Read only.)
3 27 1 40027 & 40028 Response
Displays numeric code ranging from 0 to 8
that represents a different condition (TABLE
8-3 ). 0 indicates no errors. (Read only.)
3 29 1 40029 & 40030 Batt
Returns the sampler’s battery voltage just
before that sample was collected. (Read
only.)
*The Registers contain 15 values encoded as IEEE 754, 4-byte floating point (CDAB)