Hit Commands; Display Commands - Keithley 194 Instruction Manual

IEEE-488 PROGRAMMING
Table 4-31. Hit Commands
Command Button Command Button
Hl ZERO HZ1 ENTER
HZ FILTER HZ2 CANCEL
H3 TRIGGER HZ3 FREQiTlME
H4 SGLiCONT
H24
7
H5 SOURCE HZ5
4
H6 DELAY HZ6 1
H7 SLOPE HZ7 8
H8
LEVEL HZ8
5
H9 SCAN* H29 2
H10 CI'LG H30 9
Hll SAMPLES H31
6
H12 RATE H32 3
H13 LOCAL H33 0
H14 CHANNEL H34
5
H15 AUTO H35
.
HI6
A')
H3b MHz
H17
3
H37 kHz
H18 SHIFT H38 Hz
Hl9 RECALL
HZ0 STATUS
*SCAN is intended to control future scanner option
Model 8573 Programming Example--Emulate the SHIFT,
XY MODE front panel keystroke sequence with the follow-
ing statcmcnts:
Note that the instrument changes to the XY mode when
the second statement above is executed.
4.9.23 Display (D)
The display command allows you to send messages to the
Model 194 to be displayed on the front panel. The general
format of the display command is summarized in Table
4-32.
Table 4-32. Display Commands
Command Description
D&?%+X Display aaaa ASCII characters (14
maximum).
DX
Return display to normal mode*.
*LOCAL also returns display to normal mode.
To send a message to be displayed, simply follow the D
command with the appropriate ASCII characters. Most
ASCII characters that are normally displayed can be sent,
including upper and lower case letters, and numbers. If
a character cannot be displayed (for example, !), a dash
will appear in the lower segment of the digit.
NOTE
Spaces are ignored. To display a space, use the
"@I" character.
As with all other commands, the string should be ter-
minated with the execute character. Fbr example, to display
"PRESS KEY", the following command string would bc
used: DPRESS @ KEYX. The maximum number of
characters that can be sent is 14. Any extra characters in
the command string will be ignored.
To display an X character, send a lower case x, as upper
case X is interpreted as an execute.
To return the instrument to the normal display mode, send
DX, press the front panel LOCAL key, or issue the
IEEE-488 GTL command.
HP-85 Programming Example-Use
the
program below to
type in messages on the computer keyboard and program
the instrument accordingly.
4-48