Stanford Research Systems SR620, Руководство пользователя

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36 Programming Commands
SR620 Universal Time Interval Counter
j scale
0
histogram vertical
1 histogram horizontal
2 histogram bins
3 mean vertical
4 jitter vertical
The parameter x is the desired units/division
(example: for 100ns/div x = 100E-9). The scale
values are all positive numbers except that a
negative value for the histogram vertical scale will
set the scale to log mode. An error will occur if an
attempt is made to set the scale to an illegal value.
This can happen, for example, for certain
combinations of histogram horizontal scales and
bin sizes.
PDEV (?) j
The PDEV command sets the hardcopy output
device. The parameter j = 0 set the device to
printer while j = 1 sets it to plotter.
PLAD (?) j
The PLAD command sets the address of the GPIB
plotter if a plotter is being used. Any address
from 0 to 30 except the current address of the
SR620 may be used.
PLPT (?) j
The PLPT command sets the plotter output port to
either RS232 or GPIB. The parameter j = 0 set
the port to RS232 while j = 1 sets the port to GPIB.
PLOT
The PLOT command starts a plot or print.
PCLR
The PCLR command clears any plots or prints in
progress.
Front Panel Control
KEYS(?) j
The KEYS command simulates the pressing of a
front panel key. The KEYS? query returns the
keycode of the most recently pressed key.
Keycodes are assigned as follows:
Key
keycode
mode
up 16
mode down 17
source 18
size up 25
size down 27
measurement start 32
measurement reset 34
display up 33
display down 35
set rel 40
clear rel 42
set graph 43
autoscale 41
display scales 22
scale up 20
scale down 23
print 21
clear print 29
config select 28
config set 30
Ext slope 36
Manual Trigger 31
Ext termination 39
A slope 37
A ac/dc 38
A termination 47
B slope 44
B ac/dc 46
B termination 45
ref level 19
set auto measure 50
set autoprint 51
clear automeasure 52
clear autoprint 53