Vaisala PTB210 SERIES Manuel d'instructions télécharger pdf (Page 46)

4.5 Program - Main Scan

Aside from declarations and tables the CRBASIC program needs more instructions

in order to work properly and above all instructions to assign the variables with

the intended values. The executable code begins with BeginProg and ends with

EndProg.

Measurements, processing and calls to data tables within the Scan / NextScan loop

determine the sequence and timing of program functions.

BeginProg

Scan(5,Sec,0,0)

Therm107(T107_C(1),2,1,Vx1,0,_50Hz,1,0)

Count = Count + 1

N = Count

If TimeIntoInterval(0,60,sec) Then

Count = 0

EndIf

CallTable(Table_Indoor)

NextScan

EndProg

This simple example represent a temperature reading of two temperature values

out of the T107_C-Array and its assignement to the variabels T107_C(1) and

T107_C(2). The records will be called to the data table Table_Indoor as well as

the number of measured data N within a scan loop of 5 seconds. An average of 12

values and the number of measured data per interval is to be saved every minute

according to the declarations for the data tables .

The scan intruction has an interval parameter for setting the interval between scans,

a units parameter for which this interval is based on and some buﬀer and counter

options which are set to false, because no scan has to be hold in RAM and the scan

should continue looping forever.

The counter is a simple incrementing number assigned to the varibale N within the

scan loop. It is set to zero after a time into interval of 60 seconds.

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 136 137

Pas de commentaire

Vaisala PTB210 SERIES Manuel d'instructions Page 46