KEYENCE LS-5000 - Manual (Page 104)

Chapter 8 RS-232C I/O
98
8
Sample Program (BASIC)
The following program can controll the LS using your computer’s keyboard.
100 OPEN"COM1:9600,N,8,1"FOR RANDOM AS #1
110 ON COM(1) GOSUB 180
120 COM(1) ON
130 A$=INKEY$
140 IF A$<>""THEN 150 ELSE 130
150 PRINT #1,A$;
160 PRINT A$
170 GOTO 130
180 N=LOC(1)
190 IF N=0 THEN RETURN
200 B$=B$+INPUT$ (N, #1)
210 IF RIGHT$(B$, 1)<>CHR$(13)THEN RETURN
220 PRINT CHR$(13):PRINT"RD=>";B$:B$=""
230 A$=INKEY$
240 IF A$<>""THEN PRINT #1,A$;
250 RETURN
• To use this program, set the communication protocol of the LS-5000 series and
your personal computer to the “DIP switch 2: OFF” settings.
➮ See p. 88.
Troubleshooting for communication errors using the RS-232C.
Communication fails
Set the communication
protocol.
Refer to the external
equipment's
manual and
p. 88 of this manual.
Use a proper type
cable. Refer
to the figure on p. 89.
Check the program used.
End
Ensure
that the communication
protocol setup is the same between
the LS and external
equipment.
Ensure that the proper
connection cable is being used.
Normal operation
NO
NO
NO
YES
YES