HEIDENHAIN ND 720 v.3 - Manual (Page 52)

52
Delay times for data output
Storage delay t
1
£ 0.5 ms
Data output follows t
2
t
2
£ 30 ms
Regeneration time after data output t 3 ³ 0 ms
Duration of data output in seconds:
187 • number of axes + 11 • number of line feeds
t D =
Baud rate
t2
t3
tD
CTRLB CTRLB
t1
Measured value output with CTRL B
If the control character STX (CTRL B) is received over the RS-232-C
interface, the measured value referenced to this time point will be
sent over the interface. CTRL B is received over the RXD line and the
measured values are output over the TXD line.
The measured values can be received and stored using a terminal
program (e.g. Hyper Terminal, included with Windows® ).
The basic program at the upper right illustrates the basic structure of a
program for measured-value output.
Next possible signal for measured value output: t E = t 1 +t 2 + t D + t 3 [s]
Measured
V
alue
O
utput
BASIC program for measured value output:
10 L%=48
20 CLS
30 PRINT "RS232/V.24"
40 OPEN "COM1:9600,E,7" AS#1
50 PRINT #1, CHR$ (2);
60 IF INKEY$<>""THEN 130
70 C%=LOC(1)
80 IF C%
90 X$=INPUT$(L%,#1)
100 LOCATE 9,1
110 PRINT X$;
120 GOTO 50
130 END
* 1.08
Bateil2.pm6 27.03.2002, 12:09 52