Campbell CS225 Manuel d'instructions télécharger pdf (Page 17)

CS225 Temperature String

NextScan

'Poll CS225 in Slow Sequence every minute

SlowSequence

Scan (60,Sec,3,0)

'Read the current Temperature Value

For i=1 To NumTempSensors

SDI12Recorder (CS225Temp(i),CS225_SDI12_Port,ConvertNumToSDI12address(i),"R0!",1.0,0)

CallTable One_Minute

NextScan

EndProg

7.2.3 CS225 Metadata

Every temperature point in a string includes the following Meta Data, which

can be retrieved using the aR1! SDI-12 command. This information can be

used to identify details of the temperature string and its individual temperature

points.

Table 7-5 Meta Data Details

Name

Value Range

Description

Serial

Number

0 to 65534

The serial number that is unique to each sensor unit.

Location

Number

1 to 255

Each temperature sensor within a string is assigned its

own unique location number

which by default is in

relation with the

SDI-12 address (See Table 7-4).

Measurement

from End

Value

0 to 65535 cm

This value is in centimetres (cm). These are intended

to reflect the distances

of a sensor from the end of the

sensor array. T

he bottom most temperature point

would be designated a

s 0 cm. I

f the next temperature

point below were

20 cm away, then its

Measurement

from End value would be 2

cm. Users may designate

other starting values. These can be configured at the

time of ordering.

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 23 24 25

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Campbell CS225 Manuel d'instructions Page 17

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