Toshiba TOSVERT VF-S11 Manual De Instrucciónes

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Ex. 1: BASIC program for monitoring the operation frequency continuously (RS232C, ASCII mode)

(Toshiba version of Advanced BASIC-86 Ver. 3.01.05J)

◊ Monitoring the operation frequency continuously
1) Examples of programs

10 OPEN "COM1:9600,E,8,1" AS #1

--- 9600 baud, even parity, 8-bit length, 1 stop bit

20 A$=”FE00”

--- Specifies the communication number for

monitoring the operation frequency.

30 PRINT #1,"("+”R”+A$+")"

--- Transmits data to the inverter.

Note: The carriage return code is added

automatically.

40 INPUT#1,B$

--- Receives data returned from the inverter.

50 AAA$=“&H”+MID$(B$,7,4)

---  Extracts  only data items from the data re-

turned.

60 F$=LEFT$(STR$(VAL(AAA$)/100),6)

--- Converts data into decimal form.

70 PRINT " Operation frequency =";F$+“Hz” --- Displays the operation frequency.
80 GOTO 20

--- Repeats.

2) Examples of program execution results (stop command issued during 80 Hz operation)

Operation frequency = 80 Hz ...
Operation frequency = 79.95Hz
                        :
                        :
Operation frequency = 0Hz