Campbell CS526 Manual de instrucciones descargar pdf (Pagina 23)

Appendix B. Example Program

The following is a CR1000 program that measures the CS526. This program

assumes the CS526 is connected to COM1 (C1 / TX and C2 / RX) on the

CR1000.

'CR1000 Series Datalogger

'Declare variable for digital pH measurement

Public pHCount

'Declare variables for serial input from sensor

Dim rawstring As String * 20, pHDigit(2)

'Main Program

BeginProg

'Set up datalogger port for serial communication

SerialOpen ( Com1,2400,16,0,41)

'Establish program scan rate of 60 seconds

Scan (60,Sec,0,0)

'Send get data command to CS526

SerialOut (Com1,"1M1!"&CHR(13),"",0,0)

'Set up COM1 to receive incoming serial data.

'Set timeout to maximum 200 mS

SerialIn (rawstring,Com1,50,0,20)

'Split out digital count value for pH from string input

SplitStr (pHDigit(),rawstring,"String",2,0)

pHCount = pHDigit(2)

NextScan

EndProg

B-1

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Campbell CS526 Manual de instrucciones Pagina 23