HEIDENHAIN ND 281 B v.1 User Manual
Page 42
42
RS-232-C/V.24 Data Interface (X31)
Measured value output after “STX” signal (Ctrl B)
If the display unit receives the control character STX (Ctrl B)
over the RS-232-C/V.24 interface (X31), it outputs the current
measured value over the interface.
➤
➤
➤
➤
➤ Transfer the control character Ctrl B over the RXD line of
the RS-232-C/V.24 interface (X31).
Characteristic times for measured value output
Process
Time
Storage delay
t
1
≤
1 ms
Measured value output after
t
2
≤
50 ms
Regeneration time
t
3
≥
0
These times are prolonged if functions are active
(for example, series of measurements with DIFF
value display).
Duration of measured value transfer
t
D
=
[s]
Propagation times for measured value output after “Ctrl B”
BASIC program for measured value output with “Ctrl B”
10
L%=18
20
CLS
30
PRINT "V.24/RS-232-C"
40
OPEN "COM1:9600,E,7" AS#1
50
PRINT #1, CHR$ (2);
60
IF INKEY$<>""THEN 130
70
C%=LOC(1)
80
IF C%<L%THEN 60
90
X$=INPUT$(L%,#1)
100 LOCATE 9,1
110 PRINT X$;
120 GOTO 50
130 END
t
1
t
2
Ctrl B
t
D
t
3
Ctrl B
187 + (11 • number of blank lines)
baud rate