Kippzonen COMBILOG Data Logger Instrukcja Użytkownika Pobierz pdf (Strona 141)

11.9 Sample Program

The task is:

The measured value in channel 2 shall be read from the sensor

module with the address number 10. The value has been con-

figured with a field length of seven, two decimals, the unit "°C"

and the binary format "Integer".

Sample program for ASCII-transmission without check sum:

(Notation in QBasic, V. 1.0):

OPEN "COM1: 9600,N,8,1,D50,RS"

FOR RANDOM AS #1 , initialize interface

REQ$ = "$0AR2"+chr$(13) , configure telegram

PRINT #1, REQ$ , send request telegram

RES$ = INPUT$(9,#1) , receive response telegram

VALUE$ = MID$(RES$,2,7) , determine measured value

PRINT "Temperature = ", VALUE$ , output measured value

CLOSE , enable interface

END , end program

Note: In several programming languages the initialisation of

the serial interface with even parity and 8 data bits will not be

supported. The COM-interface in the PC and the bus interface

in the data logger have to be adjusted and configured on "(N)o

parity".

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