Keithley 2002 User Manual

IEEE-488 Reference
3-148
:POINts <n>
:TRACe:POINts <n> Specify buffer size
No memory
option MEM 1 MEM 2
<n> = 2 to 404 2 to 1381 2 to 5980 (Full)
2 to 2027 2 to 6909 2 to 29908 (Compact)
MAXimum 404 1381 5980 (Full)
2027 6909 29908 (Compact)
DEFault 100 (all cases)
MINimum 2 (all cases)
:POINts?
This command is used to specify the size of the buffer. Notice that the valid parameter range
depends on which memory option is installed, and which element group (full or compact) is
being used (see :EGRoup).
PRINT #1, "output 16; :trac:poin 50; poin?" ' Set size of buffer
PRINT #1, "enter 16" ' Get response from 2002
:AUTO <b>
:TRACe:POINts:AUTO <b> Control auto buffer sizing
<b> = 0 or OFF Disable auto buffer sizing
1 or ON Enable auto buffer sizing
:AUTO?
This command is used to enable or disable auto buffer sizing. When enabled, the buffer size
defaults to the measure count value in the Trigger Model (see :TRIGger:COUNt in Trigger sub-
system). With auto buffer enabled, changing the Trigger Model’s measure count value changes
the buffer size to that value.
Disabling auto buffer sizing does not affect the size of the buffer. It simply means that you must
then use the :POINts command to change the buffer size.
If you use the :POINts command to change the buffer size while auto is enabled, the buffer size
changes to that value and auto buffer sizing disables.
If you try to enable auto buffer sizing while the measure count is programmed for infinite, an
error will occur and the command will be ignored. You cannot have an infinite buffer size.
PRINT #1, "output 16; :trig:coun 200" ' Set measure count
PRINT #1, "output 16; :trac:poin:auto on; auto?" ' Enable auto buffer sizing
PRINT #1, "enter 16" ' Get response from 2002
:FEED <name>
:TRACe:FEED <name> Specify readings source
<name> = SENSe[1] Put raw readings in buffer
CALCulate[1] Put calculated readings in buffer
NONE Put no readings in buffer
3.22.
4
Parameters
Query
Description
Program fragment
Parameters
Query
Description
Program fragment
3.22.5
Parameters

Keithley 2002 Specifications

General

Resolution	8.5 digits
DC Voltage Accuracy	±0.0006%
Maximum DC Voltage	1000 V
Maximum AC Voltage	750 V
Maximum DC Current	3 A
Maximum AC Current	3 A
Connectivity	GPIB, RS-232
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Resistance Range	10 Ω to 1 GΩ
Model	2002
Category	Multimeter
Interface	GPIB, RS-232
AC Current Accuracy	±0.1%
Frequency Range	0.1Hz to 300kHz
Display	VFD
Type	Digital
Power Supply	100-240V AC, 50/60Hz
Current Range (DC)	100 μA to 3 A
Current Accuracy (DC)	±0.01%
Current Range (AC)	100 μA to 3 A
Current Accuracy (AC)	±0.1%
DC Current Range	100 μA to 3 A
AC Current Range	100 μA to 3 A