Keithley 2002, User Manual

Page: 267 / 366

IEEE-488 Reference
3-144
:syst:key 15
The parameter listing provides the key-press code in numeric order. Figure 3-39 also provides
the key-press code.
The :KEY command allows you to select the NEXT displays over the bus. Sending :SYS-
Tem:KEY 16 over the bus is the same as a single press of the NEXT key. Sending :SYS-
Tem:KEY 8 is the same as a single press of the PREV key. The NEXT display that is selected
depends on which function is currently selected and how many times the NEXT key is “pressed”
using the :KEY command. The instrument can always be returned to the normal display by
“pressing” the PREV key a similar number of times, or by sending the :DISPlay:CNDisplay
command.
For example, on the FREQ function, you can display the trigger level by “pressing” the NEXT
key twice as follows:
:syst:key 16; key 16
To return to the normal display, “press” the PREV key twice as follows:
:syst:key 8; key 8
The queue for the :KEY? query command can only hold one key-press. When :KEY? is sent
over the bus, and the Model 2002 is addressed to talk, the key-press code number for the last key
pressed (either physically or with :KEY) is sent to the computer.
PRINT #1, "output 16; :syst:key 29" ' Select DCI function
SLEEP 3 ' Wait 3 seconds
PRINT #1, "output 16; :sys:key 16; key 16" ' Select Zero Center Bar Graph
SLEEP 3 ' Wait 3 seconds
PRINT #1, "output 16; :syst:key 8; key 8" ' Return to normal display
Figure 3-39
Key-press codes
NEXT
DISPLAY
PREV
POWER
DCV ACV DCI ACI
Ω
2
Ω
4
FREQ TEMP
REL TRIG STORE RECALL
INFO LOCAL CHAN SCAN CONFIG MENU EXIT ENTER
RANGE
AUTO
FILTER MATH
RANGE
SENSE
Ω
4 WIRE
HI
INPUT
LO
INPUTS
CAL
500V
PEAK
F
R
FRONT/REAR
2A 250V
AMPS
350V
PEAK
1100V
PEAK
!
16
23
31
7
30
6
14
21
13
20
28
4
27
3
11
18
10
17
9
8 15 22 29 5 12 19 26 2 1
2002 MULTIMETER
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