Tektronix 2001 Reference manual

Model 2001 Multimeter

Quick Reference Guide

Model 2001 Multimeter

Quick Reference Guide



1992, Keithley Instruments, Inc.

All rights reserved.

Cleveland, Ohio 44139

U.S.A.

Document Number: 2001-903-01 Rev. B

Table of Contents

Safety Precautions.......................................................1

Introduction ................................................................ 5

Operation Summary....................................................6

Multiple Displays.......................................................11

Menu Structures........................................................13

Default Conditions....................................................32

Error and Status Messages ......................................... 48

IEEE-488.2 Common Commands and Queries........... 56

SCPI Command Subsystems ...................................... 58

Safety Precautions

The following safety precautions should be observed before
using this product and any associated instrumentation. Al­though some instruments and accessories would normally be
used with non-hazardous voltages, there are situations where
hazardous conditions may be present.

This product is intended for use by qualified personnel who
recognize shock hazards and are familiar with the safety pre­cautions required to avoid possible injury. Read the operating
information carefully before using the product.

The types of product users are:

Responsible body

the use and maintenance of equipment, for ensuring that the
equipment is operated within its specifications and operating
limits, and for ensuring that operators are adequately trained.

is the individual or group responsible for

Operators

must be trained in electrical safety procedures and proper use
of the instrument. They must be protected from electric shock
and contact with hazardous live circuits.

Maintenance personnel

product to keep it operating, for example, setting the line volt­age or replacing consumable materials. Maintenance proce­dures are described in the manual. The procedures explicitly
state if the operator may perform them. Otherwise, they
should be performed only by service personnel.

Service personnel

form safe installations and repairs of products. Only properly
trained service personnel may perform installation and service
procedures.

Exercise extreme caution when a shock hazard is present. Le­thal voltage may be present on cable connector jacks or test
fixtures. The American National Standards Institute (ANSI)

use the product for its intended function. They

perform routine procedures on the

are trained to work on live circuits, and per-

1

states that a shock hazard exists when voltage levels greater
than 30V RMS, 42.4V peak, or 60VDC are present.

safety practice is to expect that hazardous voltage is
present in any unknown circuit before measuring.

Users of this product must be protected from electric shock at
all times. The responsible body must ensure that users are pre­vented access and/or insulated from every connection point. In
some cases, connections must be exposed to potential human
contact. Product users in these circumstances must be trained
to protect themselves from the risk of electric shock. If the cir­cuit is capable of operating at or above 1000 volts,

tive part of the circuit may be exposed.

As described in the International Electrotechnical Commis­sion (IEC) Standard IEC 664, digital multimeter measuring
circuits (e.g., Keithley Models 175A, 199, 2000, 2001, 2002,
and 2010) are Installation Category II. All other instruments’
signal terminals are Installation Category I and must not be
connected to mains.

Do not connect switching cards directly to unlimited power
circuits. They are intended to be used with impedance limited
sources. NEVER connect switching cards directly to AC
mains. When connecting sources to switching cards, install
protective devices to limit f ault current and voltage to the card.

Before operating an instrument, make sure the line cord is
connected to a properly grounded power receptacle. Inspect
the connecting cables, test leads, and jumpers for possible
wear, cracks, or breaks before each use.

A good

no conduc-

For maximum safety , do not touch the product, test cables, or
any other instruments while power is applied to the circuit
under test. ALWAYS remove power from the entire test sys­tem and discharge any capacitors before: connecting or dis­connecting cables or jumpers, installing or removing
switching cards, or making internal changes, such as install­ing or removing jumpers.

2

Do not touch any object that could provide a current path to the
common side of the circuit under test or power line (earth)
ground. Always make measurements with dry hands while
standing on a dry, insulated surface capable of withstanding
the voltage being measured.

The instrument and accessories must be used in accordance
with its specifications and operating instructions or the safety
of the equipment may be impaired.

Do not exceed the maximum signal levels of the instruments
and accessories, as defined in the specifications and operating
information, and as shown on the instrument or test fixture
panels, or switching card.

When fuses are used in a product, replace with same type and
rating for continued protection against fire hazard.

Chassis connections must only be used as shield connections for
measuring circuits, NOT as safety earth ground connections.

If you are using a test fixture, keep the lid closed while power
is applied to the device under test. Safe operation requires the
use of a lid interlock.

If a screw is present, connect it to safety earth ground us­ing the wire recommended in the user documentation.

The symbol on an instrument indicates that the user

!

should refer to the operating instructions located in the manual.

The symbol on an instrument shows that it can source or
measure 1000 volts or more, including the combined effect of
normal and common mode voltages. Use standard safety pre­cautions to avoid personal contact with these voltages.

The

WARNING

might result in personal injury or death. Alw ays read the asso­ciated information very carefully before performing the indi­cated procedure.

heading in a manual explains dangers that

3

The

CAUTION

heading in a manual explains hazards that
could damage the instrument. Such damage may invalidate the
warranty .

Instrumentation and accessories shall not be connected to hu­mans.

Before performing any maintenance, disconnect the line cord
and all test cables.

To maintain protection from electric shock and fire, replace­ment components in mains circuits, including the power trans­former, test leads, and input jacks, must be purchased from
Keithley Instruments. Standard fuses, with applicable national
safety approvals, may be used if the rating and type are the
same. Other components that are not safety related may be
purchased from other suppliers as long as they are equivalent
to the original component. (Note that selected parts should be
purchased only through Keithley Instruments to maintain ac­curacy and functionality of the product.) If you are unsure
about the applicability of a replacement component, call a
Keithley Instruments office for information.

To clean an instrument, use a damp cloth or mild, water
based cleaner. Clean the exterior of the instrument only. Do
not apply cleaner directly to the instrument or allow liquids
to enter or spill on the instrument. Products that consist of a
circuit board with no case or chassis (e.g., data acquisition
board for installation into a computer) should never require
cleaning if handled according to instructions. If the board be­comes contaminated and operation is affected, the board
should be returned to the factory for proper cleaning/servic­ing.

2/99

4

Introduction

This quick reference guide includes summary informa­tion on front panel and IEEE-488 operation for the
Model 2001 Multimeter. For detailed information, con­sult the Model 2001 Operator’s Manual, the Model
2001 Calibration Manual, and the Model 2001-SCAN
Scanner Card Instruction Manual.

All Keithley product names are trademarks or registered trade­marks of Keithley Instruments, Inc.

Other brand and product names are trademarks or registered
trademarks of their respective holders.

5

Operation Summary

Default Configuration

The Model 2001 can save from one to ten user setups in
memory, depending on the installed memory option.
You can select one of the user setups as the power-on
default, or have the instrument power up to either of the
two factory defaults (optimized for “BENCH” or “GPIB”
operation). Reset the instrument to “BENCH” defaults
from the front panel by performing the following steps:

1. Press the MENU key to display the main menu:

MAIN MENU

SAVESETUP GPIB CALIBRATION

TEST LIMITS STATUS-MSG GENERAL

2. If the SAVESETUP option is not blinking, press the
key until it is blinking and then press ENTER to

view the setup menu:

SETUP MENU

SAVE RESTORE POWERON RESET

3. Select the RESET option and press ENTER to view

the reset menu:

RESET ORIGINAL DFLTS

BENCH GPIB

4. Select the BENCH option and press ENTER. The

following message is displayed:

RESETTING INSTRUMENT

ENTER to conÞrm; EXIT to abort

5. Press ENTER to confirm. The display will show DC

voltage readings with autorange enabled.

6

Assuming the Model 2001 is set to primary address 16,
the instrument can be reset and the reading displayed
on the computer CRT from the IEEE-488 bus with the
following code fragment:

100 OUTPUT 716;“:syst:pres”
110 OUTPUT 716;“:fetc?”
120 ENTER 716;A$
130 PRINT A$

Instrument Connections

Each measurement function has an appropriate connec­tion scheme. Connections for all functions can be found
in Section 3 of the Model 2001 Operator’s Manual. The
following steps summarize making DC voltage mea­surements with the Model 2001:

1. Select the front input jacks with the INPUTS button
(outer position for front jacks, inner position for
rear).

2. Using the set of supplied test leads, connect the
Model 2001 to a DC voltage source (e.g., a battery)
as shown in Figure 1.

3. Use the RANGE keys to select autoranging or a
manual range. Pressing the AUTO range key tog­gles autoranging. You can select a different range
with the RANGE and RANGE keys. The fol­lowing code statement enables autoranging on the
DCV function:

100 OUTPUT 716;“:volt:dc:rang:auto on”

7

Model 2001

PREV

DCV ACV DCI ACI Ω2 Ω4 FREQ TEMP

DISPLAY

NEXT

REL TRIG STORE RECALL

POWER

INFO LOCAL CHAN SCAN CONFIG MENU EXIT ENTER

FILTER MATH

Input Resistance = 10MΩ on 1000V and 200V ranges ;
> 10GΩ on 20V, 2V and 200mV ranges.
= 1MΩ on DCV peak spikes measurement.

2001 MULTIMETER

SENSE

INPUT

Ω 4 WIRE

HI

350V

1100V

PEAK

PEAK

LO

500V

INPUTS

PEAK

F

R

RANGE

FRONT/REAR

AUTO

2A 250V

AMPS

RANGE

CAL

DC Voltage

Source

Caution : Maximum Input = 1100V peak

Figure 1. Typical DC voltage connections

Changing the Configuration

Each measurement function and operation has the
default settings that are listed in Table 18. For example,
the default settings for DC voltage are as follows:

• Measurement speed (integration time)  Normal, 1
power line cycle.

• Digital filter  Advanced, 10 readings, 1% noise tol­erance, moving average.

• Display resolution  6.5 digits.

If these settings are not sufficient for your application,
they can be changed through configuration menus. For
example, to configure the DC voltage function to store
high speed measurements, follow these steps:

1. Press CONFIG key and then the DCV key to view

8

the DCV configuration menu:

CONFIGURE DCV

SPEED FILTER RESOLUTION

2. Select SPEED from the menu, then press ENTER.
The multimeter displays the following menu:

DCV MEASUREMENT SPEED

NORMAL FAST MEDIUM HIACCURACY

SET-SPEED-EXACTLY SET-BY-RESLN

3. Using the cursor keys, select the FAST option, then
press ENTER. Since the resolution is set to AUTO,
where it defaults to a value appropriate for the
speed, it will be set to 4.5d automatically.

4. Press EXIT to return to the normal display.

To store readings in the instrument’s data storage buffer,
perform the following:

1. Press the STORE key. The following message is dis­played:

STORE 00100 READINGS

Use , , , , ENTER, EXIT, or INFO

2. Use the cursor and RANGE keys to change the
number of readings stored, or just press ENTER to
start storing readings.

To recall the stored readings, perform the following:

1. Press RECALL to view the readings. The following
message is displayed with the cursor on the least
significant digit of the reading number:

9

+000.0000 mVDC

Rdg#+00000 @Time =+000.000000 sec

2. Use the RANGE keys to increment and decrement
the reading number and scroll through the buffer.

3. The NEXT and PREV DISPLAY keys can be used
while recalling readings to access additional buffer
data, such as maximum and minimum readings.

The following code fragment configures the Model
2001 for high speed DC voltage readings, stores 100
readings, and sends the readings over the bus:

100 OUTPUT 716;“:syst:pres”
110 OUTPUT 716;“:volt:dc:nplc 0.01”
120 OUTPUT 716;“:trac:clear”
130 OUTPUT 716;“:trac:feed calc”
140 OUTPUT 716;“:trac:egr full”
150 OUTPUT 716;“:trac:poin 100”
160 OUTPUT 716;“:trac:feed:cont next”
170 OUTPUT 716;“:trac:data?”
180 ENTER 716;A$
190 PRINT A$

10

Multiple Displays

Each measurement function has its own set of “multiple
displays” shown on the bottom line of the front panel
display. To scroll through the multiple displays available
for the present function, repeatedly press and release
the NEXT DISPLAY key. The same action with the PRE­Vious DISPLAY key does a reverse scroll through the
displays. To return to the default reading display, just
press and hold either key.

Table 1. Multiple displays by function

Function Next display

All Bar graph

DC voltage DC volts, AC ripple voltage and frequency

AC voltage AC RMS voltage, frequency, and crest factor

DC current (none specific to function)
AC current AC RMS (or average) current and frequency

2-wire resistance Source current

4-wire resistance Source current

Frequency Period calculation

Zero-centered bar graph
Maximum and minimum values
Relative and actual values
Calculated and actual values (see Note 1)
Limits bar graph (see Note 1)
Adjacent channel readings (see Note 2)

Positive peak spikes and highest value
Negative peak spikes and lowest value
Positive and negative peak spikes

AC RMS, average, and peak voltages

AC RMS and average current

Voltage drop across DUT

Voltage drop across DUT
Lead resistance

Trigger level

11

Table 1. Multiple displays by function (cont.)

Function Next display

Temperature Celsius, Fahrenheit, and Kelvin units

Data storage buffer Maximum and minimum values

Notes:

1. Multiple displays for calculated values and limits bar graph are
not available for the frequency function.

2. The multiple display for adjacent channel readings is not avail­able for the DC and AC current functions.

RTD resistance (or thermocouple voltage)
Reference junction (thermocouples only)

Average and standard deviation

12

Menu Structures

The desired menu is displayed by pressing the appropri­ate key or sequence:

• CONFIG and then DCV (or ACV, DCI, ACI, Ω2, Ω4,
FREQ, TEMP)  Shows the configuration menu for
each measurement function.

• CONFIG and then NEXT DISPLAY (or PREV DIS­PLAY, REL, TRIG, STORE, FILTER, MATH, CHAN,
SCAN)  Shows the configuration menu for the
multiple displays and each measurement operation.

• MENU  The main menu accesses items for which
there are not dedicated keys.

Once in a menu structure, place the cursor ( and
keys) on the desired selection and press ENTER. Use the
cursor keys, RANGE and RANGE keys to enter
parameters. Use the EXIT key to back out of a menu
structure and disable a menu.

Table 2. CONFIGURE DCV menu structure

Menu item Description

SPEED

NORMAL

FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY

SET-BY-RSLN

ANALOG-FILTER

Measurement speed (integration time)
menu:

Select 1 PLC (power line cycle,

16.67msec for 60Hz, 20msec for

50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC

(0.01-10).
Default to setting appropriate for

resolution.

Enable (ON) or disable (OFF) analog
filter.

13

Table 2. CONFIGURE DCV menu structure (cont.)

Menu item Description

FILTER

AUTO
AVERAGING
ADVANCED

AVERAGING-MODE

RESOLUTION

AUTO

3.5d, 4.5d, 5.5d, 6.5d,

7.5d

Digital filter menu:

Default to filter appropriate for

integration time.

Program a simple average filter

(1-100 readings).

Program a simple average filter

(1-100 readings) with a noise tol­erance window (0-100% of
range).

Select moving average or repeat-

ing average mode.

Display resolution menu:

Default to resolution appropriate

for integration time.

Select a specific resolution.

Table 3. CONFIGURE ACV menu structure

Menu item Description

SPEED

NORMAL

FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY
SET-BY-RSLN

FIL TER

AUTO
AVERAGING
ADVANCED

AVERAGING-MODE

Measurement speed (integration time)

menu:
Select 1 PLC (power line cycle,

16.67msec for 60Hz, 20msec for

50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC (0.01-10).
Default to setting appropriate for res-

olution.

Digital filter menu:

Default to filter appropriate for inte-

gration time.
Program a simple average filter

(1-100 readings).
Program a simple average filter

(1-100 readings) with a noise tol-

erance window (0-100% of

range).
Select moving average or repeating

average mode.

14

Table 3. CONFIGURE ACV menu structure (cont.)

Menu item Description

RESOLUTION

AUTO

3.5d, 4.5d, 5.5d, 6.5d,

7.5d

UNITS

VOLTS
dB

dBm

COUPLING

AC
AC+DC

AC-TYPE

RMS
AVERAGE
PEAK
LOW-FREQ-RMS

POSITIVE-PEAK
NEGATIVE-PEAK

Display resolution menu:

Default to resolution appropriate for

integration time.

Select a specific resolution.

Display units menu:

Select volts.
Select dB and set voltage reference

level.

Select dBm and set reference imped-

ance.

Coupling menu:

Select AC coupled measurements.
Select DC coupled measurements.

Type of ACV measurement menu:

Select true RMS ACV.
Select average ACV.
Select peak ACV.
Select low frequency (typically

<50Hz) true RMS ACV.

Select positive DCV peak spikes

measurements.

Select negative DCV peak spikes

measurements.

15

Table 4. CONFIGURE DCI menu structure

Menu item Description

SPEED

NORMAL

FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY

SET-BY-RSLN

FILTER

AUTO
AVERAGING
ADVANCED

AVERAGING-MODE

RESOLUTION

AUTO

3.5d, 4.5d, 5.5d, 6.5d,

7.5d

MEASUREMENT-MODE

NORMAL
IN-CIRCUIT

Measurement speed (integration time)

menu:
Select 1 PLC (power line cycle,

16.67msec for 60Hz, 20msec for

50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC

(0.01-10).
Default to setting appropriate for

resolution.

Digital filter menu:

Default to filter appropriate for inte-

gration time.
Program a simple average filter

(1-100 readings).
Program a simple average filter

(1-100 readings) with a noise tol-

erance window (0-100% of

range).
Select moving average or repeating

average mode.

Display resolution menu:

Default to resolution appropriate for

integration time.
Select a specific resolution.

Measurement mode menu:

Select normal current measurement

(use AMPS terminals).
Select in-circuit current measure-

ment (use INPUT and SENSE ter-

minals).

16

Table 5. CONFIGURE ACI menu structure

Menu item Description

SPEED

NORMAL

FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY
SET-BY-RSLN

FILTER

AUTO
AVERAGING
ADVANCED

AVERAGING-MODE

RESOLUTION

AUTO

3.5d, 4.5d, 5.5d, 6.5d,

7.5d

COUPLING

AC
AC+DC

AC-TYPE

RMS
AVERAGE

Measurement speed (integration time)

menu:
Select 1 PLC (power line cycle,

16.67msec for 60Hz, 20msec for

50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC (0.01-10).
Default to setting appropriate for res-

olution.

Digital filter menu:

Default to filter appropriate for inte-

gration time.
Program a simple average filter

(1-100 readings).
Program a simple average filter

(1-100 readings) with a noise toler-

ance window (0-100% of range).
Select moving average or repeating

average mode.

Display resolution menu:

Default to resolution appropriate for

integration time.
Select a specific resolution.

Coupling menu:

Select AC coupled measurements.
Select DC coupled measurements.

Type of ACI measurement menu:

Select true RMS ACI.
Select average ACI.

17

Table 6. CONFIGURE OHMS-2W menu structure

Menu item Description

SPEED

NORMAL

FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY

SET-BY-RSLN

FILTER

AUTO
AVERAGING
ADVANCED

AVERAGING-MODE

RESOLUTION

AUTO

3.5d, 4.5d, 5.5d, 6.5d,

7.5d

OFFSETCOMP Enable/disable offset compensation

MAXAUTORANGE

Ω

, 200MΩ, 20MΩ,

1G

2M

Ω

, 200kΩ, 20k

Measurement speed (integration time)

menu:
Select 1 PLC (power line cycle,

16.67msec for 60Hz, 20msec for

50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC

(0.01-10).
Default to setting appropriate for

resolution.

Digital filter menu:

Default to filter appropriate for inte-

gration time.
Program a simple average filter

(1-100 readings).
Program a simple average filter

(1-100 readings) with a noise tol-

erance window (0-100% of

range).
Select moving average or repeating

average mode.

Display resolution menu:

Default to resolution appropriate for

integration time.
Select a specific resolution.

(20

Ω

-20kΩ ranges).

Set upper limit for autoranging of 2-

wire resistance.
Select a specific range.

Ω

18

Table 7. CONFIGURE OHMS-4W menu structure

Menu item Description

SPEED

NORMAL

FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY
SET-BY-RSLN

FIL TER

AUTO
AVERAGING
ADVANCED

AVERAGING-MODE

RESOLUTION

AUTO

3.5d, 4.5d, 5.5d, 6.5d,

7.5d

OFFSETCOMP Enable/disable offset compensation

MAXAUTORANGE

Ω

, 20kΩ, 2k

200k

Measurement speed (integration time)

menu:
Select 1 PLC (power line cycle,

16.67msec for 60Hz, 20msec for

50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC (0.01-10).
Default to setting appropriate for res-

olution.

Digital filter menu:

Default to filter appropriate for inte-

gration time.
Program a simple average filter

(1-100 readings).
Program a simple average filter

(1-100 readings) with a noise tol-

erance window (0-100% of

range).
Select moving average or repeating

average mode.

Display resolution menu:

Default to resolution appropriate for

integration time.
Select a specific resolution.

(20

Ω

-20kΩ ranges).

Set upper limit for autoranging of 4-

wire resistance.

Ω

Select a specific range.

19

Table 8. CONFIGURE FREQUENCY menu structure

Menu item Description

MAX-SIGNAL-LEVEL

1V, 10V, 100V, 1000V, TTL
1mA, 10mA, 100mA, 1A

RESOLUTION

4-DIGITS, 5-DIGITS

INPUT-TERMINALS

VOLTAGE
CURRENT

COUPLING

AC
AC+DC

Note: The maximum signal level menu is coupled to the input ter­minals menu, i.e., voltage levels are shown if voltage is the
selected input.

Display maximum signal level

menu:
Select maximum voltage level

for voltage inputs.

Select maximum current level

for current inputs.

Display resolution menu:

Select a specific resolution.

Input terminals for frequency

measurements menu:
Select INPUT HI and INPUT

LO terminals.

Select AMPS and INPUT LO

terminals.

Coupling menu:

Select AC coupled measure-

ments.

Select DC coupled measure-

ments.

20

Table 9. CONFIG TEMPERATURE menu structure

Menu item Description

SENSOR

4-WIRE-RTD

PT385
PT3916
USER-RTD

RTD

PT385
PT3916
USER-RTD

SENSOR

THERMOCOUPLE

THERMOCOUPLE-TYPE
REF-JUNCTIONS

CONFIGURE
ACQUIRE-REF-TEMP

UNITS

DEG-C, DEG-F, K

SPEED

NORMAL

FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY

SET-BY-RSLN

Sensor type menu:

4-wire RTD type menu:

Select a PT385 type.
Select a PT3916 type.
Select desired R-zero, alpha,

beta, and delta.

2-wire RTD type menu:

Select a PT385 type.
Select a PT3916 type.
Select desired R-zero, alpha,

beta, and delta.

Thermocouple setup menu:

Select desired thermocouple

type (J, K, T, E, R, S, B).

Configure reference junction

menu (JN1 thru JN5):
Configure simulated or real

junction.

Acquire reference tempera-

ture.

Temperature units menu:

Select desired temperature

units.

Measurement speed (integration

time) menu:
Select 1 PLC (power line cycle,

16.67msec for 60Hz, 20msec

for 50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC

(0.01-10).
Default to setting appropriate

for resolution.

21

Table 9. CONFIG TEMPERATURE menu structure
(cont.)

Menu item Description

FILTER

AUTO
AVERAGING
AVERAGING-MODE

RESLN

AUTO
1°, 0.1°, 0.01°, 0.001°

Digital filter menu:

Default to filter appropriate for

integration time.

Select simple average filter

(1-100 readings).

Select moving average or

repeating average mode.

Display resolution menu:

Default to resolution appropri-

ate for sensor.

Select a specific resolution.

22

Table 10. CONFIGURE TRIGGER menu structure

Menu item Description

MEASURE

SOURCE

IMMEDIATE
EXTERNAL
MANUAL
GPIB
TRIGLINK

TIMER

HOLD

DELAY

COUNT

INFINITE
ENTER-CHAN-COUNT

CONTROL

SOURCE
ACCEPTOR

Measure layer menu:

Select measure source:

Use to make measure-

ments immediately.

Use external triggers to

control measuring.

Use TRIG key to control

measuring.

Use bus triggers to control

measuring.

Use Trigger Link triggers to

control measuring. Enter
Trigger Link mode and
lines.

Use a timer to control mea-

suring and enter interval
between triggers (0.001-

999999.999sec).

Use to hold up the mea-

surement in the measure
layer.

Use to delay measurement in

the measure layer (0.001-

999999.999sec).

Define number of measure-

ments to make:
Repeat measuring indefi-

nitely.

Count = use defined value

(1-99999).

Select trigger control mode:

Enable Source Bypass.
Disable Source Bypass.

23

Table 10. CONFIGURE TRIGGER menu structure
(cont.)

Menu item Description

SCAN

SOURCE

IMMEDIATE

EXTERNAL
MANUAL
GPIB
TRIGLINK

TIMER

HOLD

DELAY

COUNT

INFINITE
ENTER-SCAN-COUNT

CONTROL

SOURCE
ACCEPTOR

Scan layer menu:

Select scan source:

Use to pass operation

immediately into the
measure layer.

Use external triggers to

control scanning.

Use TRIG key to control

scanning.

Use bus triggers to control

scanning.

Use Trigger Link triggers to

control scanning. Enter
Trigger Link lines.

Use a timer to control

scanning and enter inter­val between scans
(0.001-999999.999sec).

Use to hold up the mea-

surement in the scan
layer.

Use to delay scan in the scan

layer (0.001-

999999.999sec).

Define number of scans to be

performed:
Repeat scanning indefi-

nitely.

Count = user defined value

(1-99999).

Select trigger control mode:

Enable Source Bypass.
Disable Source Bypass.

24

Table 10. CONFIGURE TRIGGER menu structure
(cont.)

Menu item Description

ARM

SOURCE

IMMEDIATE

EXTERNAL
MANUAL
GPIB
TRIGLINK

HOLD

COUNT

INFINITE
ENTER-ARM-COUNT

CONTROL

SOURCE
ACCEPTOR

HALT Use to halt triggers. Press TRIG

Arm layer menu:

Select arm source:

Use to arm meter immedi-

ately and pass operation
into the scan layer.

Use external triggers to arm

meter.

Use TRIG key to arm

meter.

Use bus triggers to arm

meter.

Use Trigger Link triggers to

arm meter. Enter Trigger
Link lines.

Use to hold up the mea-

surement in the arm
layer.

Define number of times to

arm meter:
Continuously re-arm meter.
User defined count value

(1-99999).

Select trigger control mode:

Enable Source Bypass.
Disable Source Bypass.

key to resume triggering.

25

Table 11. CONFIG DATA STORE menu structure

Menu item Description

BURST-MODE
DATA-GROUP

FULL

COMPACT

CONTROL

FILL-AND-STOP
PRETRIGGER

PERCENTAGE
READING-COUNT
EVENT

CONTINUOUS
NEVER

CLEAR-ALL
COUNT

ENTER-COUNT
USE-TRIGGER-MODEL

FEED

AFTER-CALC
BEFORE-CALC

Acquire 4.5-digit readings at 2000

readings/sec and store in buffer.

Select data types to store in buffer.

Store reading, units, channel#, read-

ing#, time-stamp, and status
(overflow).

Store reading, units, reading#, and

status (overflow).

Select type of buffer control.

Fill buffer with readings and stop.
Wait for pretrigger event; store

before and after readings.
Enter percentage of stored read-

ings before trigger.

Enter count of stored readings

before trigger.

Select source for pretrigger event.

Store readings in buffer continu-

ously.

Readings are not stored.

Clear all stored readings and buffer

statistics.

Select buffer size.

Enter number of readings to store.
Use (finite) measure count from trig-

ger model.

Select type of reading to store.

Store readings after percent or mX+b

calculation.

Store readings before percent or

mX+b calculation.

26

Table 12. CONFIG FILTER menu structure

Menu item Description

AUTO Default to filter appropriate for measure-

AVERAGING Program simple average filter (1-100 read-

ADVANCED Program simple average filter (1-100 read-

AVERAGING-MODE Select moving average or repeating aver-

ment function and type.

ings).

ings), with a noise tolerance window
(0-100% of range).

age mode.

Table 13. CONFIGURE MATH menu structure

Menu item Description

NONE Select no calculation when MATH key is pressed.
mX+b Select mX+b calculation and enter constants.
PERCENT Select percent calculation and enter target (refer-

ence) value.

Table 14. CHANNEL SELECTION menu structure

Menu item Description

CLOSE-CHANNEL

ENTER CHAN#01 (1-10)

OPEN-ALL-CHANNELS

Close channel menu:

Use cursor, range, and ENTER

keys.

Press ENTER to open closed chan-

nel(s).

27

Table 15. CONFIGURE CHANNELS menu structure

Menu item Description

INTERNAL-CHANS

SET INTERNAL CHANS

1=DCV 2=DCV 3=DCV
4=DCV 5=DCV

EXTERNAL INPUTS

# EXTERNAL INPUTS=80

DEFAULT

CHOOSE-FUNCTIONS

SELECT CHAN=01

CHANNEL #01 FUNCTION

SAVE-ALT-FCN
RESTORE-ALT-FUNCTION

Defines internal functions:

Use range and cursor keys

to select channels and

functions.

Sets number of external

channels and functions:
# of external channels (1-

80).

Selects default function

for all external chan­nels.

Use to select channel

functions.

Select channel using

range and cursor
keys.
Select function using

cursor keys.

Stores present function as

alternate.

Restores saved alternate

function.

Table 16. SCAN OPERATION menu structure

Menu item Description

INTERNAL Enables internal scanning.
EXTERNAL Enables external scanning.
RATIO

MEASURE
REFERENCE
FUNCTION

DELTA

MEASURE
REFERENCE
FUNCTION

Enables ratio mode (internal).

Selects measure channel.
Selects reference channel.
Selects ratio function.

Enables delta mode (internal).

Selects measure channel.
Selects reference channel.
Selects delta function.

28

Table 17. Main menu structure

Menu item Description

SAVESETUP

SAVE
RESTORE

POWERON

BENCH
GPIB
USER-SETUP-NUMBER

RESET

BENCH
GPIB

Setup menu:

Save setup at a memory location

(up to 1, 5, or 10).

Return 2001 to setup stored at a

memory location (up to 1, 5,
or 10).

Power-on Menu:

Power on to bench default

setup conditions.

Power on to GPIB default

setup conditions.

Power on to setup stored at a

memory location (up to 1,
5, or 10).

Reset Menu:

Return 2001 to bench default

setup.

Return 2001 to GPIB default

setup.

29

Table 17. Main menu structure (cont.)

Menu item Description

GPIB

ADDRESSABLE
TALK-ONLY

FEED

AFTER-CALC
BEFORE-CALC
NONE

INTERFACE

IEEE-488

CENTRONICS
INTERVAL
FORMFEED

CONTROL

SET-PAGE-SETUP

ELEMENTS

STATUS

CALIBRATION

COMPREHENSIVE
AC-ONL Y-CAL

CALIBRATION-DATES

TEST

BUILT-IN-TEST

AUTOMATIC
MANUAL

DIAGNOSTICS
FRONT-PANEL-TESTS

KEYS
DISPLAY-PATTERNS

GPIB/Printer Setup menu:

Check/change IEEE-488 bus

address (0-30).

GPIB/Printer Talk-only mode

menu:
GPIB Output Feed menu:

Specify reading after math

operation.

Specify reading before math

operation.

Specify no readings.

Select printer interface.

Specify IEEE-488 printer.
Specify Centronics parallel

printer.

Specify printing interval (every

reading to 1 out of 9999).

Formfeeds menu:

Enable/disable page breaks.
Set number line between

form feeds (1-255).

Select GPIB data elements (read-

ing, units, reading number,
channel number, timestamp,
status).

Display IEEE-488 bus status byte.

Calibration menu:

Perform DC and AC calibration.
Perform AC calibration only

(open-circuit).

Check/change calibration date.

Self-test menu:

Test analog and digital boards.

Run all tests automatically.

Select tests to run.
Factory diagnostic tests.
Test display board.

Verify operation of front panel

keys.

Verify operation of display.

30

Table 17. Main menu structure (cont.)

Menu item Description

LIMITS

LIMIT-SET-1

CONTROL
LOLIM1
HILIM1

LIMIT-SET-2

CONTROL
LOLIM2
HILIM2

STROBE-CONTROL

PASS-PATTERN

STATUS-MSG Enable/disable status message

GENERAL

DIGITAL-I/O

OUTPUT-STATE
OUTPUT-SENSE
INPUT

SERIAL#

AUTOZERO

GENERAL

LINE-SYNC
DECIMAL

Limits menu:

Limit-Set-1 menu:

Enable/disable limit set #1.
Set value of low limit #1.
Set value of high limit #1.

Limit-Set-2 menu:

Enable/disable limit set #2.
Set value of low limit #2.
Set value of high limit #2.

Enable/disable limit strobe signal

of digital output #4 when trig­ger occurs.

Specify patterns on digital out-

puts to signify limits pass.

mode.

General menu:

Digital I/O menu:

Check/change states of digital

output lines.

Check/change sense of digital

output lines.

Read digital input line.

Display serial number, memory

option, SCPI version, and

firmware revisions.
Disable or enable normal (after
every reading) or synchronous
(every 200ms) autozero mode.

Enable/disable line synchroniza-

tion of measurements.
Select period or comma for dis-

play of decimal point.

31

Default Conditions

Table 18. Factory default conditions

Function or operation Bench default GPIB default

AC current:

AC-type
Coupling
Filter

Auto
Averaging

Readings

Advanced

Readings
Noise tolerance level

Filter mode
Range
Relative

Value
Resolution
Speed

AC voltage:

AC-type

Peak spikes window
Coupling
Filter

Auto

Averaging

Readings

Advanced

Readings
Noise tolerance level

Filter mode
Range
Relative

Value
Resolution
Speed
Units

dB reference

dBm reference

Autozero On (Normal) On (Normal)

RMS
AC
Off
On
Off
10
On
10
5%
Moving
Auto
Off

0.0
Auto (5.5d)
Normal (1 PLC)

RMS

0.1sec
AC
Off
On
Off
10
On
10
5%
Moving
Auto
Off

0.0
Auto (5.5d)
Normal (1 PLC)
Volts
1V
75

Ω

RMS
AC
Off
Off
Off
10
On
10
5%
Repeat
Auto
Off

0.0
Auto (5.5d)
Normal (1 PLC)

RMS

0.1sec
AC
Off
Off
Off
10
On
10
5%
Repeat
Auto
Off

0.0
Auto (5.5d)
Normal (1 PLC)
Volts
1V
75

Ω

32

Table 18. Factory default conditions (cont.)

Function or operation Bench default GPIB default

Buffer:

Burst mode
Control
Count
Data group
Feed

DC current:

Filter

Auto
Averaging

Readings

Advanced

Readings
Noise tolerance level

Filter mode
Measurement mode
Range
Relative

Value
Resolution
Speed

DC voltage:

Filter

Auto

Averaging

Readings

Advanced

Readings
Noise tolerance level

Filter mode
Range
Relative

Value
Resolution
Speed

Digital I/O:

Output states
Output sense

Frequency:

Coupling
Maximum signal level:

Function

Voltage level

Current level

No effect
No effect
No effect
No effect
No effect

On
On
Off
10
On
10
1%
Moving
Normal
Auto
Off

0.0
Auto (6.5d)
Normal (1 PLC)

On
On
Off
10
On
10
1%
Moving
Auto
Off

0.0
Auto (6.5d)
Normal (1 PLC)

No effect
No effect

AC
Voltage

10V
1mA

No effect
No effect
No effect
No effect
No effect

Off
Off
Off
10
On
10
1%
Repeat
Normal
Auto
Off

0.0
Auto (6.5d)
Normal (1 PLC)

Off
Off
Off
10
On
10
1%
Repeat
Auto
Off

0.0
Auto (6.5d)
Normal (1 PLC)

No effect
No effect

AC
Voltage

10V
1mA

33

Table 18. Factory default conditions (cont.)

Function or operation Bench default GPIB default

Frequency:

Relative

Value
Resolution
Terminals
Trigger level

Function DCV DCV
Limits:

Limit set #1

Low limit #1

Low limit #1 action

High limit #1

High limit #1 action
Limit set #2

Low limit #2

Low limit #2 action

High limit #2

High limit #2 action
Strobe control
Pass pattern

Line synchronization Off Off
Math

Function
Reference for percent
Scale factor for mX+b
Offset for mX+b

Resistance (2-wire):

Filter

Auto

Averaging

Readings

Advanced

Readings
Noise tolerance level

Filter mode
Offset compensation
Range

Maximum autorange
Relative

Value
Resolution
Speed

Off

0.0
Auto (5d)
Voltage

0.0

Off

-1.0
0

1.0
0
Off

-1.0
0

1.0
0
Off
0

Off
Percent

1.0

1.0

0.0

On
On
Off
10
On
10
1%
Moving
Off
Auto
1G

Ω

Off

0.0
Auto (6.5d)
Normal (1 PLC)

Off

0.0
Auto (5d)
Voltage

0.0

Off

-1.0
0

1.0
0
Off

-1.0
0

1.0
0
Off
0

Off
Percent

1.0

1.0

0.0

Off
Off
Off
10
On
10
1%
Repeat
Off
Auto
1G

Ω

Off

0.0
Auto (6.5d)
Normal (1 PLC)

34

Table 18. Factory default conditions (cont.)

Function or operation Bench default GPIB default

Resistance (4-wire):

Filter

Auto
Averaging

Readings

Advanced

Readings
Noise tolerance level

Filter mode
Offset compensation
Range

Maximum autorange
Relative

Value
Resolution
Speed

Scanning:

Channels
Scan list:

Internal list

External list

Function
Scan operation
Ratio:

Reference channel

Measure channel

Function
Delta:

Reference channel

Measure channel

Function

On
On
Off
10
On
10
1%
Moving
Off
Auto
200k

Ω

Off

0.0
Auto (6.5d)
Normal (1 PLC)

No effect
No channels

No channels
DC voltage
None

5
10
DC voltage

5
10
DC voltage

Off
Off
Off
10
On
10
1%
Repeat
Off
Auto
200k

Ω

Off

0.0
Auto (6.5d)
Normal (1 PLC)

No effect
No channels

No channels
DC voltage
None

5
10
DC voltage

5
10
DC voltage

35

Table 18. Factory default conditions (cont.)

Function or operation Bench default GPIB default

Temperature:

Filter

Auto
Averaging

Readings

Filter mode

Relative

Value
Resolution
RTDs:

Type

Resistance at 0°C

Alpha

Beta

Delta

Temperature:

Sensor
Speed
Thermocouples:

Type

Reference junction

Default temperature
Real junction temp.

coefficient

Offset

Units

On
On
On
10
Moving
Off

0.0
Auto (0.01°C)

PT385
100

Ω

0.00385

0.111

1.507

4-wire RTD
Normal (1 PLC)

J
Simulated
23°C
10mV/°C

0mV @ 0°C
°C

Off
Off
On
10
Repeat
Off

0.0
Auto (0.01°C)

PT385
100

Ω

0.00385

0.111

1.507

4-wire RTD
Normal (1 PLC)

J
Simulated
23°C
10mV/°C

0mV @ 0°C
°C

36

Table 18. Factory default conditions (cont.)

Function or operation Bench default GPIB default

Triggers:

Arm layer:

Source

Triglink input

Triglink output
Count
Control

Scan layer:

Source

Triglink input

Triglink output
Delay
Count
Control

Measure layer:

Source

Triglink mode

Triglink input

Triglink output

Timer
Delay
Count
Control

Armed
Immediate

Line 2
Line 1
1
Acceptor

Immediate
Line 2
Line 1
0
Infinite
Acceptor

Immediate
Asynchronous
Line 2
Line 1

0.1sec
0
Infinite
Acceptor

Idled
Immediate

Line 2
Line 1
1
Acceptor

Immediate
Line 2
Line 1
0
1
Acceptor

Immediate
Asynchronous
Line 2
Line 1

0.1sec
0
1
Acceptor

37

Table 19. *RST and :SYSTem:PRESet

Command *RST :SYSTem:PRESet
IEEE 488.2 common commands

All commands [unaffected] [unaffected]

SCPI signal oriented commands

:CONFigure “VOLT:DC” “VOLT:DC”

Calculate 1 subsystem

:CALCulate1

:STATe
:FORMat

:MMFactor
:MBFactor
:PERCent

Calculate 2 subsystem

:CALCulate2

:STATe
:FORMat

Calculate 3 subsystem

:CALCulate3

:LIM1

:STATe
:UPPer

:DATA
:SOURce

:LOWer

:DATA
:SOURce

:CLEar

:AUTO

:LIM2

:STATe
:UPPer

:DATA
:SOURce

:LOWer

:DATA
:SOURce

:CLEar

:AUTO

0 (OFF)
PERCent

1.0

0.0

1.0

0 (OFF)
NONE

0 (OFF)

1.0
0

-1.0
0

1 (ON)
0 (OFF)

1.0
0

-1.0
0

1 (ON)

0 (OFF)
PERCent

1.0

0.0

1.0

0 (OFF)
NONE

0 (OFF)

1.0
0

-1.0
0

1 (ON)
0 (OFF)

1.0
0

-1.0
0

1 (ON)

38

Table 19. *RST and :SYSTem:PRESet (cont.)

Command *RST :SYSTem:PRESet

:CALCulate3

:BSTRobe

:STATe

:PASS

:SOURce

Calibration subsystem

All commands [unaffected] [unaffected]

Display subsystem

:DISPlay

:SMESsage
:WINDow1

:TEXT

:STATe

:DATA

:WINDow2

:TEXT

:STATe

:DATA

:ENABle

Format subsystem

:FORMat

:DATA
:BORDer
:ELEMents

0 (OFF)
0

0 (OFF)

[unaffected]
[unaffected]

[unaffected]
[unaffected]
[unaffected]

ASCII
SWAPped
READing

0 (OFF)
0

0 (OFF)

[unaffected]
[unaffected]

[unaffected]
[unaffected]
[unaffected]

ASCII
SWAPped
all

Output commands

All commands [unaffected] [unaffected]

Route subsystem

:ROUTe

:CLOSe
:OPEN
:SCAN

:INTernal
:EXTernal

:FUNCtion

:FUNCtion

[unaffected]
[unaffected]

empty
all “VOLT:DC”
empty
all “VOLT:DC”

[unaffected]
[unaffected]

empty
all “VOLT:DC”
empty
all “VOLT:DC”

39

Table 19. *RST and :SYSTem:PRESet (cont.)

Command *RST :SYSTem:PRESet

:ROUTe

:SCAN

:RATio

:RCHannel
:MCHannel
:FUNCtion

:DELTa

:RCHannel
:MCHannel
:FUNCtion

:LSELect

Sense commands

:SENSe1

:FUNCtion “VOLT:DC” “VOLT:DC”

AC current commands

:SENSe1

:CURRent

:AC

:APERture

:AUTO

:NPLCycles

:AUTO
:COUPling
:RANGe

:UPPer

:AUTO

:ULIMit
:LLIMit

:REFerence

:STATe
:DIGits

:AUTO
:AVERage

:STATe

:AUTO

:COUNt

:TCONtrol

:ADVanced

:STATe
:NTOLerance

:DETector

:FUNCtion

5
10
“VOLT:DC”

5
10
“VOLT:DC”
NONE

1/LineFreq
0 (OFF)
1
0 (OFF)
AC

2.1
1 (ON)

2.1

2.0E-4

0.0
0 (OFF)
6
1 (ON)

0 (OFF)
0 (OFF)
10
REPeat

1 (ON)
5

RMS

5
10
“VOLT:DC”

5
10
“VOLT:DC”
NONE

1/LineFreq
0 (OFF)
1
0 (OFF)
AC

2.1
1 (ON)

2.1

2.0E-4

0.0
0 (OFF)
6
1 (ON)

0 (OFF)
1 (ON)
10
MOVing

1 (ON)
5

RMS

40

Table 19. *RST and :SYSTem:PRESet (cont.)

Command *RST :SYSTem:PRESet
DC current commands

:SENSe1

:CURRent

:DC

:APERture

:AUTO

:NPLCycles

:AUTO

:RANGe

:UPPer
:AUTO

:ULIMit
:LLIMit

:REFerence

:STATe

:DIGits

:AUTO

:AVERage

:STATe
:AUTO
:COUNt
:TCONtrol
:ADVanced

:STATe
:NTOLerance

:METHod

AC voltage commands

:SENSe1

:VOLTage

:AC

:APERture

:AUTO

:NPLCycles

:AUTO
:COUPling
:RANGe

:UPPer

:AUTO

:ULIMit
:LLIMit

:REFerence

:STATe

1/LineFreq
0 (OFF)
1
0 (OFF)

2.1
1 (ON)

2.1

2.0E-4

0.0
0 (OFF)
7
1 (ON)

0 (OFF)
0 (OFF)
10
REPeat

1 (ON)
1
NORMal

1/LineFreq
0 (OFF)
1
0 (OFF)
AC

775
1 (ON)
775
.2

0.0
0 (OFF)

1/LineFreq
0 (OFF)
1
0 (OFF)

2.1
1 (ON)

2.1

2.0E-4

0.0
0 (OFF)
7
1 (ON)

1 (ON)
1 (ON)
10
MOV

1 (ON)
1
NORMal

1/LineFreq
0 (OFF)
1
0 (OFF)
AC

775
1 (ON)
775
.2

0.0
0 (OFF)

41

Table 19. *RST and :SYSTem:PRESet (cont.)

Command *RST :SYSTem:PRESet

:SENSe1

:VOLTage

:AC

:DIGits

:AUTO

:AVERage

:STATe
:AUTO
:COUNt
:TCONtrol
:ADVanced

:STATe
:NTOLerance

:DETector

:FUNCtion

DC voltage commands

:SENSe1:

:VOLTage

:DC

:APERture
:NPLCycle

:AUTO

:RANGe

:UPPer
:AUTO

:ULIMit
:LLIMit

:REFerence

:STATe

:DIGits

:AUTO

:AVERage

:STATe
:AUTO
:COUNt
:TCONtrol
:ADVanced

:STATe
:NTOLerance

6
1 (ON)

0 (OFF)
0 (OFF)
10
REPeat

1 (ON)
5
RMS

0.1

1/LineFreq
1
0 (OFF)

1100
1 (ON)
1100
.2

0.0
0 (OFF)
7
1 (ON)

0 (OFF)
0 (OFF)
10
REPeat

1 (ON)
1

6
1 (ON)

0 (OFF)
1 (ON)
10
MOVing

1 (ON)
5
RMS

0.1

1/LineFreq
1
0 (OFF)

1100
1 (ON)
1100
.2

0.0
0 (OFF)
7
1 (ON)

1 (ON)
1 (ON)
10
MOVing

0 (OFF)
1

42

Table 19. *RST and :SYSTem:PRESet (cont.)

Command *RST :SYSTem:PRESet
Frequency commands

:SENSe1

:FREQuency

:COUPling
:REFerence

:STATe

:DIGits
:THReshold

:VOLTage

:LEVel

:RANGe
:CURRent

:LEVel

:RANGe

:SOURce

2-wire resistance commands

:SENSe1

:RESistance

:APERture

:AUTO

:NPLCycles

:AUTO

:RANGe

:UPPer
:AUTO

:ULIMit

:LLIMit

:REFerence

:STATe

:DIGits

:AUTO

:OCOMpensated
:AVERage

:STATe
:AUTO
:COUNt
:TCONtrol
:ADVanced

:STATe

:NTOLerance

AC

0.0
0 (OFF)
5

0
10

0

1.0E-3
VOLTage

1/LineFreq
0 (OFF)
1
0 (OFF)

1.1E+9
1 (ON)

1.1E+9
20

0.0
0 (OFF)
7
1 (ON)
0 (OFF)

0 (OFF)
0 (OFF)
10
REPeat

1 (ON)
1

AC

0.0
0 (OFF)
5

0
10

0

1.0E-3
VOLTage

1/LineFreq
0 (OFF)
1
0 (OFF)

1.1E+9
1 (ON)

1.1E+9
20

0.0
0 (OFF)
7
1 (ON)
0 (OFF)

1 (ON)
1 (ON)
10
MOVing

1 (ON)
1

43

Table 19. *RST and :SYSTem:PRESet (cont.)

Command *RST :SYSTem:PRESet
4-wire resistance commands

:SENSe1

:FRESistance

:APERture

:AUTO

:NPLCycles

:AUTO

:RANGe

:UPPer
:AUTO

:ULIMit
:LLIMit

:REFerence

:STATe

:DIGits

:AUTO
:OCOMpensated
:AVERage

:STATe

:AUTO

:COUNt

:TCONtrol

:ADVanced

:STATe
:NTOLerance

Temperature commands

:SENSe1

:TEMPerature

:APERture

:AUTO
:NPLCycles

:AUTO
:REFerence

:STATe
:DIGits

:AUTO
:AVERage

:STATe

:AUTO

:COUNt

:TCONtrol
:RJUNction1

:RSELect

1/LineFreq
0 (OFF)
1
0 (OFF)

2.1E+5
1 (ON)

2.1E+5
20

0.0
0 (OFF)
7
1 (ON)
0 (OFF)

0 (OFF)
0 (OFF)
10
REPeat

1 (ON)
1

1/LineFreq
0 (OFF)
1
0 (OFF)

0.0
0 (OFF)
6
1 (ON)

0 (OFF)
0 (OFF)
10
REPeat

SIMulated

1/LineFreq
0 (OFF)
1
0 (OFF)

2.1E+5
1 (ON)

2.1E+5
20

0.0
0 (OFF)
7
1 (ON)
0 (OFF)

1 (ON)
1 (ON)
10
MOVing

1 (ON)
1

1/LineFreq
0 (OFF)
1
0 (OFF)

0.0
0 (OFF)
6
1 (ON)

1 (ON)
1 (ON)
10
MOVing

SIMulated

44

Table 19. *RST and :SYSTem:PRESet (cont.)

Command *RST :SYSTem:PRESet

:SENSe1

:TEMPerature

:RJUNction1

:SIMulated
:REAL

:TCOefficient
:OFFSet

:RJUNction2

:RSELect
:SIMulated
:REAL

:TCOefficient
:OFFSet

:RJUNction3

:RSELect
:SIMulated
:REAL

:TCOefficient
:OFFSet

:RJUNction4

:RSELect
:SIMulated
:REAL

:TCOefficient
:OFFSet

:RJUNction5

:RSELect
:SIMulated
:REAL

:TCOefficient

:OFFSet
:TRANsducer
:RTD

:TYPE
:ALPHa
:BETA
:DELTa
:RZERo

:TCouple

:TYPE

Source subsystem

All commands [unaffected] [unaffected]

23(˚C)

0.01

0.01
SIMulated

23(˚C)

0.01

0.01
SIMulated

23(˚C)

0.01

0.01
SIMulated

23(˚C)

0.01

0.01
SIMulated

23(˚C)

0.01

0.01
FRTD

PT385

0.00385

0.111

1.507

100.0
J

23(˚C)

0.01

0.01
SIMulated

23(˚C)

0.01

0.01
SIMulated

23(˚C)

0.01

0.01
SIMulated

23(˚C)

0.01

0.01
SIMulated

23(˚C)

0.01

0.01
FRTD

PT385

0.00385

0.111

1.507

100.0
J

45

Table 19. *RST and :SYSTem:PRESet (cont.)

Command *RST :SYSTem:PRESet
System subsystem

:SYSTem

:KEY
:AZERo

:STATe
:TYPE

:LSYNc

:STATe
:POSetup
:AMEThod
:FETCh

:FORMat

Trigger subsystem

:INITiate

:CONTinuous

:ARM:SEQuence1

:LAYer1

:COUNt

:SOURce

:TCONfigure

:DIRection
:ASYNchronous

:ILINe
:OLINe

:LAYer2

:COUNt

:DELay

:SOURce

:TIMer

:TCONfigure

:DIRection
:ASYNchronous

:ILINe
:OLINe

:TRIGger

:SEQuence1

:COUNt

:DELay

:SOURce

:TIMer

:TCONfigure

:PROTcol
:DIRection

[unaffected]
1 (ON)

NORMal
0 (OFF)

[unaffected]
NORMal

[unaffected]

0 (OFF)

1
IMMediate

ACCeptor
2

1
1

0
IMMediate

0.1
ACCeptor
2

1

1
0
IMMediate

0.1
ASYNchronous

ACCeptor

[unaffected]
1 (ON)

NORMal
0 (OFF)

[unaffected]
NORMal

[unaffected]

1 (ON)

1
IMMediate

ACCeptor
2

1
INF

0
IMMediate

0.1
ACCeptor
2

1

INF
0
IMMediate

0.1
ASYNchronous

ACCeptor

46

Table 19. *RST and :SYSTem:PRESet (cont.)

Command *RST :SYSTem:PRESet

:TRIGger

:SEQuence1

:TCONfigure

:ASYNchronous

:ILINe
:OLINe

:SSYNchronous

:LINE

Status subsystem

All commands [unaffected] [unaffected]

Trace subsystem

All commands [unaffected] [unaffected]

Unit commands

:UNIT

:TEMPerature
:VOLTage

:AC

:DB

:REFerence

:DBM

:IMPedance

2
1

1

C
V
1
75

2
1

1

C
V
1
75

47

Error and Status Messages

Table 20. Error and status messages

Number Description Event

+900 “Internal System Error” EE
+611

+610
+515

+514
+513
+512
+511
+510

+444 to
+350

+312
+310
+309
+308
+306
+305
+304
+303
+302
+301

+174
+173
+172
+171

+161 “Program running” SE
+126

+125
+124
+123
+122
+121

+101 “Operation Complete” SE
+000 “No Error” SE

“Questionable Temperature”
“Questionable Calibration”

“Calibration dates lost”
“DC calibration data lost”
“AC calibration data lost”
“Power-on state lost”
“GPIB address lost”
“Reading buffer data lost”

Calibration Errors
(see Calibration Manual)

“Buffer Pretriggered”
“Buffer full”
“Buffer half full”
“Buffer Available”
“Reading Available”
“High limit 2 event”
“Low limit 2 event”
“High limit 1 event”
“Low limit 1 event”
“Reading overflow”

“Re-entering the idle layer”
“Waiting in arm layer 2”
“Waiting in arm layer 1”
“Waiting in trigger layer”

“Device calculating”
“Device measuring”
“Device sweeping”
“Device ranging”
“Device settling”
“Device calibrating”

SE
SE

EE
EE
EE
EE
EE
EE

EE

SE
SE
SE
SE
SE
SE
SE
SE
SE
SE

SE
SE
SE
SE

SE
SE
SE
SE
SE
SE

48

Table 20. Error and status messages (cont.)

Number Description Event

SE = Status event
EE = Error event

-100

-101

-102

-103

-104

-105

-108

-109

-110

-111

-112

-113

-114

-120

-121

-123

-124

-128

-140

-141

-144

-148

-150

-151

-154

-158

-160

-161

-168

-170

-171

-178

-200

-201

-202
SE = Status event

EE = Error event

“Command Error”
“Invalid Character”
“Syntax Error”
“Invalid Separator”
“Data Type Error”
“GET not allowed”
“Parameter not allowed”
“Missing Parameter”

“Command Header Error”
“Command Header Separator Error”
“Program mnemonic too long”
“Undefined header”
“Header suffix out of range”

“Numeric data error”
“Invalid character in number”
“Exponent too large”
“Too many digits in number”
“Numeric data not allowed”

“Character data error”
“Invalid character data”
“Character data too long”
“Character data not allowed”

“String data error”
“Invalid string data”
“String too long”
“String data not allowed”

“Block data error”
“Invalid block data”
“Block data not allowed”

“Expression error”
“Invalid expression”
“Expression data not allowed”

“Execution error”
“Invalid while in local”
“Settings lost due to rtl” (return to local)

EE
EE
EE
EE
EE
EE
EE
EE

EE
EE
EE
EE
EE

EE
EE
EE
EE
EE

EE
EE
EE
EE

EE
EE
EE
EE

EE
EE
EE

EE
EE
EE

EE
EE
EE

49

Table 20. Error and status messages (cont.)

Number Description Event

-210

-211

-212

-213

-214

-215

-220

-221

-222

-223

-224

-230

-241

-260

-314

-330

-350

-410

-420

-430

-440

SE = Status event
EE = Error event

“Trigger error”
“Trigger ignored”
“Arm ignored”
“Init ignored”
“Trigger deadlock”
“Arm deadlock”

“Parameter Error”
“Settings conflict”
“Parameter data out of range”
“Too much data”
“Illegal parameter value”

“Data corrupt or stale”
“Hardware missing”
“Expression Error”

“Save/recall memory lost”
“Self Test failed”
“Queue overflow”

“Query interrupted”
“Query unterminated”
“Query deadlocked”
“Query unterminated after indefinite

response”

EE
EE
EE
EE
EE
EE

EE
EE
EE
EE
EE

EE
EE
EE

EE
EE
EE

EE
EE
EE
EE

50

Standard Event

Status Register

OPC

Standard Event

Status Enable

Register

&

OPC

&

&

OR

&

&

To Event Summary

Bit (ESB) of Status

Byte Register (See

figure 6).

(B2) (B1) (B0)

QYE

(B3)

DDE

(B4)

EXE

(B5)

CME

(B6)

URQ

(B7)

PON

(B15 - B8)

* ESR ?

&

&

Figure 2. Standard event status

(B2) (B1) (B0)

QYE

(B3)

DDE

(B4)

EXE

(B5)

CME

(B6)

URQ

(B7)

PON

(B15 - B8)

* ESE

* ESE ?

PON = Power On

URQ = User Request

CME = Command Error

EXE = Execution Error

DDE = Device-Dependent Error

QYE = Query Error

OPC = Operation Complete

& = Logical AND

OR = Logical OR

51

PTR

Transition

NTR Filter

Operation Event

(B0)

(B1)

(B2)

(B4) (B3)

(B5)

(B6)

(B10) (B9) (B8) (B7)

(B15 - B11)

Register

(B0)

Set

(B1)

(B2)

(B4) (B3)

Trig

(B5)

(B6)

Arm

Calc Cal

Idle

(B10) (B9) (B8) (B7)

(B15 - B11)

&

&

Operation Condition

Register

(B0)

Set

(B1)

(B2)

From OR'ed summary

of Trigger Event Status.

(B4) (B3)

Trig

(B5)

Arm

(B6)

Calc Cal

Idle

(B10) (B9) (B8) (B7)

From OR'ed summary of

Arm Event Status.

(B15 - B11)

Set

Trig

Arm

Calc Cal

Idle

Figure 3. Operation event status

Operation Event

Enable Register

&

(B0)

&

Set

(B1)

(B2)

PTR = Positive Transition Filter

NTR = Negative Transition Filter

&

&

OR

Trig

Arm

Calc Cal

Idle

To Operation

Summary Bit

(OSB) of Status

Byte Register.

(B4) (B3)

(B5)

(B6)

& = Logical AND

OR = Logical OR

(B10) (B9) (B8) (B7)

(B15 - B11)

Idle = Idle

Calc = Calculating

Arm = Waiting in an Arm Layer

(See figure 6).

Trig = Waiting in Trigger Layer

Set = Settling

Cal = Calibrating

52

Measurement

Condition Register

PTR Measurement

NTR Transition Filter

Measurement Event

Register

(B0)

(B0)

LL1

(B1)

(B2)

(B4) (B3)

(B5)

RAV

BHF BAV LL2

BFL HL2 HL1 ROF

(B10) (B9) (B8) (B7) (B6)

BPT

(B11)

(B15 - B12)

LL1

RAV

BHF BAV LL2

BFL HL2 HL1 ROF

BPT

(B1)

(B2)

(B4) (B3)

(B5)

(B6)

(B7)

(B8)

(B9)

(B10)

(B11)

(B15 - B12)

(B0)

LL1

(B1)

(B2)

LL2 HL1

(B4) (B3)

(B5)

RAV

(B7) (B6)

BAV

(B8)

BHF

BFL HL2 ROF

(B10) (B9)

BPT

(B11)

(B15 - B12)

&

&

&

&

&

&

&

OR

Figure 4. Measurement event status

&

&

&

To Measurement

Measurement Event

Enable

Register

(B0)

LL1

(B1)

(B2)

(B4) (B3)

(B5)

RAV

(B7) (B6)

BAV

(B8)

BHF

BFL HL2 ROFLL2 HL1

(B10) (B9)

BPT

(B11)

(B15 - B12)

Summary Bit

(MSB) of Status

Byte Register.

(See figure 6).

PTR = Positive Transition Filter

NTR = Negative Transition Filter

HL1 = High Limit 1

LL1 = Low Limit 1

ROF = Reading Overflow

& = Logical AND

OR = Logical OR

RAV = Reading Available

HL2 = High Limit 2

LL2 = Low Limit 2

BPT = Buffer Pretriggered

BFL = Buffer Full

BHF = Buffer Half Full

BAV = Buffer Available

53

Questionable

Condition Register

Questionable

Transition Filter

PTR

NTR

Questionable Event

Register

Questionable Event

Enable Register

(B3 - B0)

(B3 - B0)

(B4)

(B7 - B5)

(B13 - B9)

(B14) (B8)

0

(B15)

Temp

Warn Cal

(B4)

(B7 - B5)

(B8)

(B13 - B9)(B14)

0

(B15)

&

&

&

&

OR

Temp

Cal

0

Temp

Warn Cal

(B3 - B0)

(B4)

(B7 - B5)

(B13 - B9)

(B14) (B8)

(B15)

Figure 5. Questionable event status

(B3 - B0)

&

(B4)

Temp

(B7 - B5)

(B13 - B9)

(B14) (B8)

Warn Cal

0

(B15)

To Questionable

Summary Bit

(QSB) of Status

Byte Register.

(See figure 6).

Warn = Command Warning

Cal = Calibration Summary

Temp = Temperature Summary

& = Logical AND

OR = Logical OR

PTR = Positive Transition Register

NTR = Negative Transition Register

54

Read by Serial Poll

Status Byte

Register

MSB

Read by *STB ?

Service Request

Enable Register

&

MSB

(B2) (B1) (B0)

EAV

(B3)

QSB

(B4)

MAV

(B5)

Status Summary Messages

ESB

(B6)

RQS

OSB

* STB ?

Service

Request

MSS

(B7)

Serial Poll

Generation

&

&

&

&

&

OR

EAV

QSB

MAV

ESB

OSB

* SRE

(B2) (B1) (B0)

(B3)

(B4)

(B5)

(B7) (B6)

* SRE ?

OSB = Operation Summary Bit

MSS = Master Summary Status

RQS = Request for Service

ESB = Event Summary Bit

Figure 6. Status byte and service request (SRQ)

MAV = Message Available

QSB = Questionable Summary Bit

EAV = Error Available

MSB = Measurement Summary Bit

& = Logical AND

OR = Logical OR

55

IEEE-488.2 Common

Commands and Queries

Table 21. IEEE-488.2 common commands and queries

Mnemonic Name Description

*CLS Clear status Clears all event registers, and

*ESE <NRf> Event Enable com-

mand

*ESE? Event Enable query Reads Standard Event Enable

*ESR? Event status

register query

*IDN? Identification query Reads ID information of

*OPC Operation com-

plete command

*OPC? Operation com-

plete query

*OPT? Option identifica-

tion query

*RCL <NRf> Recall command Returns the 2001 to the setup

*RST Reset command Returns the 2001 to the *RST

*SAV <NRf> Save command Saves the current setup con-

*SRE <NRf> Service request

enable command

Error Queue.
Sets Standard Event Enable

Register.

Register.
Reads Standard Event Status

Register and clears it.

instrument.
Sets the OPC bit in the Stan-

dard Event Status Register
after all pending commands
have been executed.

Places an ASCII “1” into the
output queue when all pend­ing selected device opera­tions have been completed.

Reads ID code of options
present (memory, scanner).

configuration stored in the
designated memory location.

default conditions.

figuration to the designated
memory location.

Sets Service Request Enable
Register.

56

Table 21. IEEE-488.2 common commands and queries
(cont.)

Mnemonic Name Description

*SRE? Service request

enable query

*STB? Read status byte

query
*TRG Trigger command Issues a bus trigger.
*TST? Self-test query Performs a checksum test on

*WAI Wait-to-continue

command

Reads Service Request
Enable Register.

Reads Status Byte Register.

ROM and return the results.
Wait until all previous com-

mands are executed.

57

SCPI Command Subsystems

Notes:

1. Brackets ([ ]) are used to denote optional character sets.
These optional characters do not have to be included in
the program message. Do not use brackets ([ ]) in the pro­gram message.

2. Angle brackets (< >) are used to indicate parameter type.
Do not use angle brackets (< >) in the program message.

3. Upper case characters indicate the short-form version for
each command word.

Table 22. Signal oriented measurement commands

Command Description

:FETCh? Requests the latest reading (SCPI) or a

:CONFigure:<function> Places the 2001 in a “one-shot” mea-

:READ? Performs an :ABORt, :INITiate, and a

:MEASure[:<function>]? Performs an :ABORt, :CONFigure

fresh reading (FRESh).

surement mode for the specified func­tion.

FETCh?.

:<function>, and a :READ?.

Table 23. Calculate command summary

Command Description

:CALCulate[1]

:FORMat <name>
:FORMat?

:KMATh

:MMFactor <NRf>

:MMFactor?
:MBFactor <NRf>

Subsystem to control CALC 1:

Select math format: MXB, PERCent,

NONE.
Query math format.
Path to configure math calculations:

Specify “m” for mX+b

(-9.999999e20 to

+9.999999e20).
Query “m” factor.
Specify “b” for mX+b

(-9.999999e30 to

+9.999999e30).

58

Table 23. Calculate command summary (cont.)

Command Description

:CALCulate[1]

:KMATh

:MBFactor?
:PERCent <NRf>

:PERCent?

:STATe <b>
:STATe?

:DATA?
:IMMediate

:CALCulate2

:FORMat <name>

:FORMat?
:STATe <b>

:STATe?
:IMMediate
:DATA?

:CALCulate3

:LIMit[1]

:UPPer

[:DATA] <n>

[:DATA]?
:SOURce <NRf>
:SOURce?

:LOWer

[:DATA] <n>

[:DATA]?
:SOURce <NRf>
:SOURce?

:STATe <b>
:STATe?

:FAIL?
:CLEAR

Query “b” factor.
Set PERCENT value

(-9.999999e35 to
+9.999999e35).

Query PERCENT.

Enable (1 or ON) or disable (0 or

OFF) calculation.
Query state of math function.
Read math result of CALC 1.
Recalculate input data.

Subsystem to control CALC 2:

Select math format: MEAN, SDEVia-

tion, MAXimum, MINimum,

PKPK, NONE.
Query math format.
Enable (1 or ON) or disable (0 or

OFF) calculation.
Query state of math function.
Recalculate raw input data in buffer.
Read math result of CALC 2.

Subsystem to control CALC 3 (limit

tests):
Path to control LIMIT 1 test:

Path to configure upper limit:

Specify upper limit

(-9.999999e35 to

+9.999999e35).
Query upper limit.
Specify digital output (0 to 15).
Query source.

Path to configure lower limit:

Specify lower limit

(-9.999999e35 to

+9.999999e35).
Query lower limit.
Specify digital output (0 to 15).
Query source.

Enable (1 or ON) or disable (0 or

OFF) limit test.

Query state of limit test.
Query test result (1 = pass,

0 = fail).

Path to clear failed test:

59

Table 23. Calculate command summary (cont.)

Command Description

:CALCulate3

:LIMit[1]

:CLEAR

[:IMMediate]
:AUTO <b>

:AUTO?

:LIMit2

:UPPer

[:DATA] <n>

[:DATA]?
:SOURce <NRf>
:SOURce?

:LOWer

[:DATA] <n>

[:DATA]?
:SOURce <NRf>

:SOURce?
:STATe <b>
:STATe?

:FAIL?
:CLEAR

[:IMMediate]

:AUTO <b>

:AUTO?

:PASS

:SOURce <NRf>

:CLIMits

:FAIL?

:BSTRobe

:STATe <b>
:STATe?

:IMMediate

Clear failed test indication.
Enable (1 or ON) or disable (0

or OFF) auto clear.

Query auto clear.

Path to control LIMIT 2 test:

Path to configure upper limit:

Specify upper limit

(-9.999999e35

to +9.999999e35).
Query upper limit.
Specify digital output (0 to 15).
Query source (digital output

value).

Path to configure lower limit:

Specify lower limit

(-9.999999e35

to +9.999999e35).
Query lower limit.
Specify digital output (0 to 15).
Query source (digital output

value).

Enable (1 or ON) or disable (0

or OFF) limit test.

Query state of limit test.
Query test result (1 = pass,

0 = fail).

Path to clear failed test:

Clear failed test indication.
Enable (1 or ON) or disable

(0 or OFF) auto clear.
Query auto clear.

Path to define “pass” digital output

pattern.
Specify digital output (0 to 15).

Command path for composite lim-

its:
Query composite result of LIMIT

1 and LIMIT 2 tests (1 = pass, 0
= fail).

Path to control limit binning strobe:

Enable (1 or ON) or disable (0 or

OFF) strobe.

Query state of binning strobe.

Re-perform limit tests.

60

Table 24. CALibrate command summary

Command Description

:CALibration

:PROTected

:LOCK

:SWITch?

:SAVE
:DATA?
:DATE “<string>”

:DATE?
:NDUE “<string>”

:NDUE?
:LLEVel

:SWITch?

:STEP <Step #>

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

:STEP?
:CALCulate

Calibration root command.

All commands in this subsystem

are protected by the CAL
switch.
Lock out calibration (opposite

of enabling cal with CAL
switch).

Request comprehensive CAL

switch state. (0 = locked;
1 = unlocked)

Save cal constants to

EEPROM.

Download cal constants from

2001.
Send cal date to 2001.
Request cal date from 2001.
Send next due cal date to

2001.
Request next due cal date

from 2001.

Low-level calibration sub-

system.
Request low-level CAL

switch state. (0 = locked;
1 = unlocked)

20V AC at 1kHz step.
20V AC at 30kHz step.
200V AC at 1kHz step.
200V AC at 30kHz step.

1.5V AC at 1kHz step.

0.2V AC at 1kHz step.

5mV AC at 100kHz step.

0.5mV AC at 1kHz step.

+2V DC step.

-2V DC step.

0V DC step.
20mA AC at 1kHz step.
+0.2A DC step.
+2A DC step.
2V AC at 1Hz step.
Request the current calibra-

tion step.

Calculate low-level cal con-

stants.

61

Table 24. CALibrate command summary (cont.)

Command Description

:CALibration

:PROTected

:DC

:ZERO
:LOW <NRf>

:HIGH <NRf>
:LOHM <NRf>
:HOHM <NRf>
:OPEN

:CALCulate

:UNPRotected

:ACCompensation

User calibration subsystem.

Low-thermal short calibra-

tion step.
+2V DC calibration step.
+20V DC calibration step.
20kΩ calibration step.
1MΩ calibration step.
Open circuit calibration

step.
Calculate DC cal constants.

All commands in this subsystem

are not protected by CAL
switch.
Perform user AC calibration

(disconnect all cables).

Table 25. DISPlay command summary

Command Description

:DISPlay

[:WINDow[1]]

:TEXT

:DATA <a>
:DATA?

:STATe <b>
:STATe?

:DATA?

:WINDow2

:TEXT

:DATA <a>
:DATA?

:STATe <b>
:STATe?

:DATA?

Path to locate message to top display.

Path to control user text messages.

Define ASCII message “a” using up

to 20 characters.
Query text message.
Enable (1 or ON) or disable (0 or

OFF) message mode.
Query text message mode (0 or 1).

Query data on top portion of display.

Path to locate message to bottom display.

Path to control user text messages.

Define ASCII message “a” using up

to 32 characters.
Query text message.
Enable (1 or ON) or disable (0 or

OFF) message mode.
Query text message mode (0 or 1).

Query data on bottom portion of dis-

play.

62

Table 25. DISPlay command summary (cont.)

Command Description

:DISPlay

:CNDisplay
:SMESsage <b>
:SMESsage?

:ENABle <b>
:ENABle?

Clear NEXT (or PREV) display messages

and cancel associated operations.

Enable (1 or ON) or disable (0 or OFF)

status message mode.
Query status message mode (0 or 1).
Turn on (1 or ON) or turn off (0 or OFF)

the front panel display.
Query state of the display (0 or 1).

Table 26. FORMat command summary

Command Description

:FORMat

[:DATA] <type>[,<length>]

[:DATA]?
:ELEMents <item list>

:ELEMents?
:BORDer <name>

:BORDer?

Select data format:

ASCii
REAL, 32
REAL, 64
SREal

DREal
Query data format.
Specify data elements: READ-

ing, CHANnel, RNUMber,

UNITs, TIMEstamp and

STATus.
Query data elements.
Select binary byte order:

NORMal, SWAPped.
Query byte order.

63

Table 27. OUTPut command summary

Command Description

:OUTPut

:TTL[1]

:LSENse <name>
:LSENse?

:TTL2

:LSENse <name>
:LSENse?

:TTL3

:LSENse <name>
:LSENse?

:TTL4

:LSENse <name>
:LSENse?

Path to set polarity of digital out-

put line 1:
Select polarity; active (AHIGH)

or active (ALOW).

Query polarity of line 1.

Path to set polarity of digital out-

put line 2:
Select polarity; active (AHIGH)

or active (ALOW).

Query polarity of line 2.

Path to set polarity of digital out-

put line 3:
Select polarity; active (AHIGH)

or active (ALOW).

Query polarity of line 3.

Path to set polarity of digital out-

put line 4:
Select polarity; active (AHIGH)

or active (ALOW).

Query polarity of line 4.

Table 28. ROUTe command summary

Command Description

:ROUTe

:CLOSe <list>

:STATe?

:CLOSe? <list>
:OPEN <list>
:OPEN:ALL

:OPEN? <list>
:SCAN

[:INTernal] <list>

Path and command to close speci-

fied channel:
Query closed channel.

Query specified channels

(1 = closed, 0 = open).

Open specified channel or all

channels.
Open all channels.
Query specified channels

(1 = open, 0 = closed).
Command path to configure and

control scan operations:

Specify an internal scan list (2 to

10 channels).

64

Table 28. ROUTe command summary (cont.)

Command Description

:ROUTe

:SCAN

[:INTernal]?

:FUNCtion <list>,

<name>

:FUNCtion? <list>
:EXTernal <list>
:EXTernal?

:FUNCtion <list>,

<name>

:FUNCtion? <list>
:RATio

:FUNCtion <name>

:FUNCtion?

:RCHannel <list>

:RCHannel?

:MCHannel <list>

:MCHannel?
:DELTa

:FUNCtion <name>

:FUNCtion?

:RCHannel <list>

:RCHannel?

:MCHannel <list>

:MCHannel?
:LSELect <name>

:LSELect?

Query the internal scan list.

Assign measurement function

to specified channels.

Query function for each speci-

fied channel.

Specify an external scan list (2 to

80 channels).

Query the external scan list.

Assign measurement function

to specified channels.

Query function for each speci-

fied channel.

Command path to configure ratio

calculation:
Specify function for Ratio

(‘VOLTage:DC’, ‘RESis-

tance’ or ‘FRESistance’).
Query Ratio function.
Specify reference channel (1 to

10).
Query reference channel.
Specify measure channel (1 to

10).
Query measure channel.

Command path to configure

delta calculation:
Specify function for Delta

(‘VOLTage:DC’, ‘RESis-

tance’ or ‘FRESistance’).
Query Delta function.
Specify reference channel (1 to

10).
Query reference channel.
Specify measure channel (1 to

10).
Query measure channel.

Select scan operation: INTernal,

EXTernal, RATio, DELTa,
NONE.

Query scan operation.

65

Table 29. Sense command summary

Command Description

[:SENSe[1]]

:ALTernate[1]

:SAVE
:RECall

:FUNCtion <name>

:FUNCtion?
:DATA

[:LATest]?
:FRESh?

Path to control an Alternate

setup.
Save current setup as Alternate

setup.

Return instrument to Alternate

setup.

Select measurement function:

‘VOLTage:AC’, ‘VOLTage:
DC’,‘RESistance’, ‘FRESis­tance’,‘CURRent:AC’, ‘CUR­Rent:DC’,‘FREQuency’,

‘TEMPerature’
Query function.
Path to select reading type:

Query the latest reading.

Query a fresh reading.

66

Table 29. Sense command summary (cont.)

Command Description

:CURRent:AC

:APERture <n>

:AUTO <b>
:AUTO ONCE
:AUTO?

:APERture?
:NPLCycles <n>

:AUTO <b>
:AUTO ONCE

:AUTO?
:NPLCycles?
:COUPling AC|DC

:COUPling?
:RANGe

[:UPPer] <n>

[:UPPer]?

:AUTO <b>

Path to configure AC current.

Specify integration rate in sec-

onds (166.67e-6 to 200e-3).
Enable (1 or ON) or disable

(0 or OFF) auto aperture.

Enable and then disable

auto aperture.

Query auto aperture (0 or 1).

Query aperture (integration

rate).

Specify integration rate (num-

ber of line cycles; 0.01 to

10).
Enable (1 or ON) or disable

(0 or OFF) auto NPLC.

Enable and then disable

auto NPLC.

Query auto line cycle inte-

gration (0 or 1).

Query line cycle integration

rate.
Specify input coupling.
Query input coupling.

Path to configure measure-

ment range:

Select range (0 to +2.1).

Query range.

Enable (1 or ON) or disable

(0 or OFF) auto range.

67

Table 29. Sense command summary (cont.)

Command Description

:CURRent:AC

:RANGe

:AUTO ONCE

:ULIMit <n>
:ULIMit?

:LLIMit <n>
:LLIMit?

:AUTO?

:REFerence <n>

:STATe <b>
:STATe?

:ACQuire

:REFerence?
:DIGits <n>

:AUTO <b>
:AUTO ONCE
:AUTO?

:DIGits?
:AVERage

:TCONtrol <name>
:TCONtrol?

:COUNt <n>
:COUNt?

:ADVanced

:NTOLerance <n>
:NTOLerance?
[:STATe] <b>

Set range based on present

input signal.
Specify upper limit for

auto range (0 to +2.1).
Query upper limit.
Specify lower limit for

auto range (0 to +2.1).
Query lower limit.

Query auto range.

Specify reference (REL) value

(-2.1 to +2.1).
Enable (1 or ON) or disable

(0 or OFF) REL.

Query state of REL (0 or 1).
Use input signal as refer-

ence.

Query reference (REL) value.
Specify measurement resolu-

tion (4 to 8).
Enable (1 or ON) or disable

(0 or OFF) auto resolution.

Enable and then disable

auto resolution.

Query auto resolution (0 or

1).

Query resolution.
Path to configure and control

the filter.
Select filter type: MOVing,

REPeat.

Query filter type.
Specify filter count (1 to

100).

Query filter count.
Path to configure and con-

trol advanced filter.
Specify noise tolerance

level (0 to 100 percent).
Query noise tolerance

level.
Enable (1 or ON) or dis-

able (0 or OFF)

advanced filter.

68

Table 29. Sense command summary (cont.)

Command Description

:CURRent:AC

:AVERage

:ADVanced

[:STATe]?
[:STATe] <b>
[:STATe]?

:AUTO <b>
:AUTO ONCE
:AUTO?

:DETector

[:FUNCtion] <name>
[:FUNCtion]?

Query state of advanced

filter.

Enable (1 or ON) or disable

(0 or OFF) filter.
Query state of digital filter.
Enable (1 or ON) or disable

(0 or OFF) auto filter.
Enable and then disable

auto filter.
Query auto filter.

Path to select function:

Select type of AC measure-

ment: RMS, AVERage.
Query detector function.

:CURRent:DC

:APERture <n>

:AUTO <b>
:AUTO ONCE
:AUTO?

:APERture?
:NPLCycles <n>

:AUTO <b>
:AUTO ONCE

:AUTO?
:NPLCycles?
:RANGe

[:UPPer] <n>

[:UPPer]?

:AUTO <b>

Path to configure DC current.

Specify integration rate in sec-

onds (166.67e-6 to 200e-3).
Enable (1 or ON) or disable

(0 or OFF) auto aperture.

Enable and then disable

auto aperture.

Query auto aperture (0 or 1).

Query aperture (integration

rate).

Specify integration rate (num-

ber of line cycles; 0.01 to

10).
Enable (1 or ON) or disable

(0 or OFF) auto NPLC.

Enable and then disable

auto NPLC.

Query auto line cycle inte-

gration (0 or 1).

Query line cycle integration

rate.

Path to configure measure-

ment range:
Select range (0 to 2.1).
Query range.
Enable (1 or ON) or disable

(0 or OFF) auto range.

69

Table 29. Sense command summary (cont.)

Command Description

:CURRent:DC

:RANGe

:AUTO ONCE

:ULIMit <n>
:ULIMit?

:LLIMit <n>
:LLIMit?

:AUTO?

:REFerence <n>

:STATe <b>
:STATe?

:ACQuire

:REFerence?
:DIGits <n>

:AUTO <b>
:AUTO ONCE
:AUTO?

:DIGits?
:AVERage

:TCONtrol <name>
:TCONtrol?

:COUNt <n>
:COUNt?

:ADVanced

:NTOLerance <n>
:NTOLerance?
[:STATe] <b>

Set range based on present

input signal.
Specify upper limit for

auto range (0 to 2.1).
Query upper limit.
Specify lower limit for

auto range (0 to 2.1).
Query lower limit.

Query auto range.

Specify reference (REL) value

(-2.1 to +2.1).
Enable (1 or ON) or disable

(0 or OFF) REL.

Query state of REL (0 or 1).
Use input signal as refer-

ence.

Query reference (REL) value.
Specify measurement resolu-

tion (4 to 8).
Enable (1 or ON) or disable

(0 or OFF) auto resolution.

Enable and then disable

auto resolution.

Query auto resolution (0 or

1).

Query resolution.
Path to configure and control

the filter.
Select filter type: MOVing,

REPeat.

Query filter type.
Specify filter count (1 to

100).

Query filter count.
Path to configure and con-

trol advanced filter.
Specify noise tolerance

level (0 to 100 percent).
Query noise tolerance

level.
Enable (1 or ON) or dis-

able (0 or OFF)

advanced filter.

70

Table 29. Sense command summary (cont.)

Command Description

:CURRent:DC

:AVERage

:ADVanced

[:STATe]?
[:STATe] <b>
[:STATe]?

:AUTO <b>
:AUTO ONCE
:AUTO?

:METHod <name>
:METHod?

Query state of advanced

filter.

Enable (1 or ON) or disable

(0 or OFF) filter.
Query state of digital filter.
Enable (1 or ON) or disable

(0 or OFF) auto filter.
Enable and then disable

auto filter.
Query auto filter.

Select measurement tech-

nique: NORMal, ICIRcuit.

Query method.

:VOLTage:AC

:APERture <n>

:AUTO <b>
:AUTO ONCE
:AUTO?

:APERture?
:NPLCycles <n>

:AUTO <b>
:AUTO ONCE

:AUTO?
:NPLCycles?
:COUPling AC|DC

:COUPling?
:RANGe

[:UPPer] <n>

[:UPPer]?

Path to configure AC voltage.

Specify integration rate in sec-

onds (166.67e-6 to 200e-3).
Enable (1 or ON) or disable

(0 or OFF) auto aperture.

Enable and then disable

auto aperture.

Query auto aperture (0 or 1).

Query aperture (integration

rate).

Specify integration rate (num-

ber of line cycles; 0.01 to

10).
Enable (1 or ON) or disable

(0 or OFF) auto NPLC.

Enable and then disable

auto NPLC.

Query auto line cycle inte-

gration (0 or 1).

Query line cycle integration

rate.
Specify input coupling.
Query input coupling.
Path to configure measure-

ment range:
Select range (0 to +775).
Query range.

71

Table 29. Sense command summary (cont.)

Command Description

:VOLTage:AC

:RANGe

:AUTO <b>
:AUTO ONCE

:ULIMit <n>
:ULIMit?

:LLIMit <n>
:LLIMit?

:AUTO?

:REFerence <n>

:STATe <b>
:STATe?

:ACQuire

:REFerence?
:DIGits <n>

:AUTO <b>
:AUTO ONCE
:AUTO?

:DIGits?
:AVERage

:TCONtrol <name>
:TCONtrol?

:COUNt <n>
:COUNt?

:ADVanced

:NTOLerance <n>
:NTOLerance?

Enable (1 or ON) or disable

(0 or OFF) auto range.

Set range based on present

input signal.
Specify upper limit for

auto range (0 to +775).
Query upper limit.
Specify lower limit for

auto range (0 to +775).
Query lower limit.

Query auto range.

Specify reference (REL) value

(-775 to +775).
Enable (1 or ON) or disable

(0 or OFF) REL.

Query state of REL (0 or 1).
Use input signal as refer-

ence.

Query reference (REL) value.
Specify measurement resolu-

tion (4 to 8).
Enable (1 or ON) or disable

(0 or OFF) auto resolution.

Enable and then disable

auto resolution.

Query auto resolution (0 or

1).

Query resolution.
Path to configure and control

the filter.
Select filter type: MOVing,

REPeat.

Query filter type.
Specify filter count (1 to

100).

Query filter count.
Path to configure and con-

trol advanced filter.
Specify noise tolerance

level (0 to 100 percent).
Query noise tolerance

level.

72

Table 29. Sense command summary (cont.)

Command Description

:VOLTage:AC

:AVERage

:ADVanced

[:STATe] <b>

[:STATe]?
[:STATe] <b>
[:STATe]?

:AUTO <b>
:AUTO ONCE
:AUTO?

:DETector

[:FUNCtion] <name>

[:FUNCtion]?
:PWINdow <n>

:PWINdow?

Enable (1 or ON) or dis-

able (0 or OFF)
advanced filter.

Query state of advanced

filter.

Enable (1 or ON) or disable

(0 or OFF) filter.
Query state of digital filter.
Enable (1 or ON) or disable

(0 or OFF) auto filter.
Enable and then disable

auto filter.
Query auto filter.

Path to select function:

Select type of AC measure-

ment: RMS, AVERage,

PEAK, LFRMs, NPeak,

PPeak.
Query detector function.
Specify window in seconds

(0.1 to 9.9).
Query peak spike detection

window.

:VOLTage:DC

:APERture <n>

:AUTO <b>
:AUTO ONCE
:AUTO?

:APERture?
:NPLCycles <n>

:AUTO <b>
:AUTO ONCE

Path to configure DC voltage:

Specify integration rate in sec-

onds (166.67e-6 to 200e-3).
Enable (1 or ON) or disable

(0 or OFF) auto aperture.
Enable and then disable

auto aperture.
Query auto aperture (0 or 1).

Query aperture (integration

rate).

Specify integration rate (num-

ber of line cycles; (0.01 to

10).
Enable (1 or ON) or disable

(0 or OFF) auto NPLC.
Enable and then disable

auto NPLC.

73

Table 29. Sense command summary (cont.)

Command Description

:VOLTage:DC

:NPLCycles <n>

:AUTO?
:NPLCycles?
:RANGe

[:UPPer] <n>

[:UPPer]?

:AUTO <b>

:AUTO ONCE

:ULIMit <n>
:ULIMit?

:LLIMit <n>
:LLIMit?

:AUTO?
:REFerence <n>

:STATe <b>

:STATe?

:ACQuire
:REFerence?

:DIGits <n>

:AUTO <b>

:AUTO ONCE

:AUTO?
:DIGits?

:AVERage

:TCONtrol <name>

:TCONtrol?

:COUNt <n>

:COUNt?

Query auto line cycle inte-

gration (0 or 1).

Query line cycle integration

rate.

Path to configure measure-

ment range:
Select range (0 to 1100).
Query range.
Enable (1 or ON) or disable

(0 or OFF) auto range.

Set range based on present

input signal.
Specify upper limit for

auto range (0 to 1100).
Query upper limit.
Specify lower limit for

auto range (0 to 1100).
Query lower limit.

Query auto range.

Specify reference (REL) value

(-1100 to +1100).
Enable (1 or ON) or disable

(0 or OFF) REL.

Query state of REL (0 or 1).
Use input signal as refer-

ence.

Query reference (REL) value.
Specify measurement resolu-

tion (4 to 8).
Enable (1 or ON) or disable

(0 or OFF) auto resolution.

Enable and then disable

auto resolution.

Query auto resolution (0 or

1).

Query resolution.
Path to configure and control

the filter.
Select filter type: MOVing,

REPeat.

Query filter type.
Specify filter count (1 to

100).

Query filter count.

74

Table 29. Sense command summary (cont.)

Command Description

:VOLTage:DC

:AVERage

:ADVanced

:NTOLerance <n>
:NTOLerance?
[:STATe] <b>

[:STATe]?
[:STATe] <b>
[:STATe]?

:AUTO <b>
:AUTO ONCE
:AUTO?

Path to configure and con-

trol advanced filter.
Specify noise tolerance

level (0 to 100 percent).

Query noise tolerance

level.

Enable (1 or ON) or dis-

able (0 or OFF)
advanced filter.

Query state of advanced

filter.

Enable (1 or ON) or disable

(0 or OFF) filter.
Query state of digital filter.
Enable (1 or ON) or disable

(0 or OFF) auto filter.
Enable and then disable

auto filter.
Query auto filter.

:RESistance

:APERture <n>

:AUTO <b>
:AUTO ONCE
:AUTO?

:APERture?
:NPLCycles <n>

:AUTO <b>
:AUTO ONCE

:AUTO?
:NPLCycles?
:RANGe

Path to configure resistance:

Specify integration rate in sec-

onds (166.67e-6 to 200e-3).
Enable (1 or ON) or disable

(0 or OFF) auto aperture.

Enable and then disable

auto aperture.

Query auto aperture (0 or 1).

Query aperture (integration

rate).

Specify integration rate in

number of line cycles (0.01
to 10).
Enable (1 or ON) or disable

(0 or OFF) auto NPLC.

Enable and then disable

auto NPLC.

Query auto line cycle inte-

gration (0 or 1).

Query line cycle integration

rate.

Path to configure measure-

ment range:

75

Table 29. Sense command summary (cont.)

Command Description

:RESistance

:RANGe

[:UPPer] <n>
[:UPPer]?
:AUTO <b>

:AUTO ONCE

:ULIMit <n>

:ULIMit?
:LLIMit <n>

:LLIMit?

:AUTO?

:REFerence <n>

:STATe <b>
:STATe?

:ACQuire

:REFerence?
:DIGits <n>

:AUTO <b>
:AUTO ONCE
:AUTO?

:DIGits?
:AVERage

:TCONtrol <name>
:TCONtrol?

:COUNt <n>
:COUNt?

:ADVanced

:NTOLerance <n>

Select range (0 to 1.05e9).
Query range.
Enable (1 or ON) or disable

(0 or OFF) auto range.

Set range based on present

input signal.
Specify upper limit for

auto range (0 to

1.05e9).
Query upper limit.
Specify lower limit for

auto range (0 to

1.05e9).
Query lower limit.

Query auto range.

Specify reference (REL) value

(-1.05e9 to +1.05e9).
Enable (1 or ON) or disable

(0 or OFF) REL.

Query state of REL (0 or 1).
Use input signal as refer-

ence.

Query reference (REL) value.
Specify measurement resolu-

tion (4 to 8).
Enable (1 or ON) or disable

(0 or OFF) auto resolution.

Enable and then disable

auto resolution.

Query auto resolution (0 or

1).

Query resolution.
Path to configure and control

the filter.
Select filter type: MOVing,

REPeat.

Query filter type.
Specify filter count (1 to

100).

Query filter count.
Path to configure and con-

trol advanced filter.
Specify noise tolerance

level (0 to 100 percent).

76

Table 29. Sense command summary (cont.)

Command Description

:RESistance

:AVERage

:ADVanced

:NTOLerance?
[:STATe] <b>

[:STATe]?
[:STATe] <b>
[:STATe]?

:AUTO <b>
:AUTO ONCE
:AUTO?

:OCOMpensated <b>

:OCOMpensated?

Query noise tolerance

level.

Enable (1 or ON) or dis-

able (0 or OFF)
advanced filter.

Query state of advanced

filter.

Enable (1 or ON) or disable

(0 or OFF) filter.
Query state of digital filter.
Enable (1 or ON) or disable

(0 or OFF) auto filter.
Enable and then disable

auto filter.
Query auto filter.

Enable (1 or ON) or disable (0

or OFF) Offset Compensa­tion.

Query Offset Compensation.

:FRESistance

:APERture <n>

:AUTO <b>
:AUTO ONCE
:AUTO?

:APERture?
:NPLCycles <n>

:AUTO <b>
:AUTO ONCE
:AUTO?

:NPLCycles?

Path to configure four-wire resis-

tance:
Specify integration rate in sec-

onds (166.67e-6 to 200e-3).
Enable (1 or ON) or disable

(0 or OFF) auto aperture.
Enable and then disable

auto aperture.
Query auto aperture (0 or 1).

Query aperture (integration

rate).

Specify integration rate in

number of line cycles (0.01
to 10).
Enable (1 or ON) or disable

(0 or OFF) auto NPLC.
Enable and then disable

auto NPLC.
Query auto line cycle inte-

gration (0 or 1).

Query line cycle integration

rate.

77

Table 29. Sense command summary (cont.)

Command Description

:FRESistance

:RANGe

[:UPPer] <n>
[:UPPer]?
:AUTO <b>

:AUTO ONCE

:ULIMit <n>
:ULIMit?

:LLIMit <n>
:LLIMit?

:AUTO?

:REFerence <n>

:STATe <b>
:STATe?

:ACQuire

:REFerence?
:DIGits <n>

:AUTO <b>
:AUTO ONCE
:AUTO?

:DIGits?
:AVERage

:TCONtrol <name>
:TCONtrol?

:COUNt <n>
:COUNt?

:ADVanced

:NTOLerance <n>

Path to configure measure-

ment range:
Select range (0 to 2.1e5).
Query range.
Enable (1 or ON) or disable

(0 or OFF) auto range.

Set range based on present

input signal.
Specify upper limit for

auto range (0 to 2.1e5).
Query upper limit.
Specify lower limit for

auto range (0 to 2.1e5).
Query lower limit.

Query auto range.

Specify reference (REL) value

(-2.1e5 to +2.1e5).
Enable (1 or ON) or disable

(0 or OFF) REL.

Query state of REL (0 or 1).
Use input signal as refer-

ence.

Query reference (REL) value.
Specify measurement resolu-

tion (4 to 8).
Enable (1 or ON) or disable

(0 or OFF) auto resolution.

Enable and then disable

auto resolution.

Query auto resolution (0 or

1).

Query resolution.
Path to configure and control

the filter.
Select filter type: MOVing,

REPeat.

Query filter type.
Specify filter count (1 to

100).

Query filter count.
Path to configure and con-

trol advanced filter.
Specify noise tolerance

level (0 to 100 percent).

78

Table 29. Sense command summary (cont.)

Command Description

:FRESistance

:AVERage

:ADVanced

:NTOLerance?
[:STATe] <b>

[:STATe]?
[:STATe] <b>
[:STATe]?

:AUTO <b>
:AUTO ONCE
:AUTO?

:OCOMpensated <b>

:OCOMpensated?

Query noise tolerance

level.

Enable (1 or ON) or dis-

able (0 or OFF)
advanced filter.

Query state of advanced

filter.

Enable (1 or ON) or disable

(0 or OFF) filter.
Query state of digital filter.
Enable (1 or ON) or disable

(0 or OFF) auto filter.
Enable and then disable

auto filter.
Query auto filter.

Enable (1 or ON) or disable (0

or OFF) Offset Compensa­tion.

Query Offset Compensation.

:FREQuency

:COUPling AC|DC
:COUPling?

:REFerence <n>

:STATe <b>
:STATe?

:ACQuire

:REFerence?
:DIGits <n>

:DIGits?
:SOURce <name>

:SOURce?
:THReshold

:CURRent

:RANGe <n>
:RANGe?

Path to configure frequency:

Specify input coupling.
Query input coupling.
Specify reference (REL) value

(0 to 15e6).
Enable (1 or ON) or disable

(0 or OFF) REL.
Query state of REL (0 or 1).
Use input signal as refer-

ence.

Query reference (REL) value.
Specify measurement resolu-

tion (4 or 5).

Query resolution.
Select source: CURRent,

VOLTage.

Query source.
Path to configure threshold:

Path to set current threshold:

Specify range (0 to 1).

Query range.

79

Table 29. Sense command summary (cont.)

Command Description

:FREQuency

:THReshold

:CURRent

:LEVel <n>
:LEVel?

:VOLTage

:RANGe <n>
:RANGe?
:LEVel <n>
:LEVel?
:TTL

Specify threshold level.
Query threshold level.

Path to set voltage thresh-

old:
Specify range (0 to 1000).
Query range.
Specify threshold level.
Query threshold level.
Set threshold to TTL level.

:TEMPerature

:APERture <n>

:AUTO <b>
:AUTO ONCE
:AUTO?

:APERture?
:NPLCycles <n>

:AUTO <b>
:AUTO ONCE

:AUTO?
:NPLCycles?
:REFerence <n>

:STATe <b>

:STATe?

:ACQuire
:REFerence?

Path to configure four-wire resis-

tance:
Specify integration rate in sec-

onds (166.67e-6 to 200e-3).
Enable (1 or ON) or disable

(0 or OFF) auto aperture.

Enable and then disable

auto aperture.

Query auto aperture (0 or 1).

Query aperture (integration

rate).

Specify integration rate in

number of line cycles (0.01
to 10).
Enable (1 or ON) or disable

(0 or OFF) auto NPLC.

Enable and then disable

auto NPLC.

Query auto line cycle inte-

gration (0 or 1).

Query line cycle integration

rate.

Specify reference (REL) value.

Enable (1 or ON) or disable

(0 or OFF) REL.
Query state of REL (0 or 1).
Use input signal as refer-

ence.

Query reference (REL) value.

80

Table 29. Sense command summary (cont.)

Command Description

:TEMPerature

:DIGits <n>

:AUTO <b>
:AUTO ONCE
:AUTO?

:DIGits?
:AVERage

:TCONtrol <name>
:TCONtrol?

:COUNt <n>
:COUNt?

[:STATe] <b>
[:STATe]?

:AUTO <b>
:AUTO ONCE
:AUTO?

:TRANsducer <name>
:TRANsducer?

:RTD

:TYPE <name>
:TYPE?

:ALPHa <NRf>
:ALPHa?

:BETA <NRf>
:BETA?

:DELTa <NRf>
:DELTa?

:RZERo <NRf>
:RZERo?

Specify measurement resolu-

tion (4 to 7).
Enable (1 or ON) or disable

(0 or OFF) auto resolution.

Enable and then disable

auto resolution.

Query auto resolution (0 or

1).
Query resolution.
Path to configure and control

the filter.
Select filter type: MOVing,

REPeat.
Query filter type.
Specify filter count (1 to

100).
Query filter count.
Enable (1 or ON) or disable

(0 or OFF) filter.
Query state of digital filter.
Enable (1 or ON) or disable

(0 or OFF) auto filter.
Enable and then disable

auto filter.
Query auto filter.

Select transducer: RTD, FRTD,

TCouple.

Query transducer.
Path to configure RTD mea-

surements:
Select RTD parameters:

PT385, PT3916, USER.
Query RTD type.
Specify constant for USER

type (0 to 0.01).
Query alpha.
Specify constant for USER

type (0 to 1).
Query beta.
Specify constant for USER

type (0 to 5).
Query delta.
Specify constant for USER

type (0 to 1000).
Query rzero.

81

Table 29. Sense command summary (cont.)

Command Description

:TEMPerature

:TCouple

:TYPE <name>
:TYPE?

:RJUNctionX

:RSELect <name>
:RSELect?

:SIMulated <n>
:SIMulated?
:REAL

:TCOefficient <n>
:TCOefficient?
:OFFSet <n>

:OFFSet?

:ACQuire

:SENSe2

:TTL[1]

:DATA?

Path to configure TC measure-

ments:
Select thermocouple type: J,

T, K, E, R, S, B.

Query TC type.

Path to configure reference

junctions (Z = 1 to 5).
Select reference type: SIMu-

lated, REAL.
Query reference type.
Specify simulated rempera-

ture.
Query simluated tempera-

ture.
Command path to specify

“real” reference junction.

Specify TC.

Query TC.

Specify voltage offset at

0°C.

Query voltage offset.
Update reference tempera-

ture.

Path to read digital input port:

Query (read) the digital input

port.

82

Table 30. SOURce command summary

Command Description

:SOURce

:TTL[1][:LEVel] <b>
:TTL[1][:LEVel]?

:TTL2[:LEVel] <b>
:TTL2[:LEVel]?

:TTL3[:LEVel] <b>
:TTL3[:LEVel]?

:TTL4[:LEVel] <b>
:TTL4[:LEVel]?

Set digital output line #1 true (1 or

ON) or false (0 or OFF).
Query digital output line 1.
Set digital output line #2 true (1 or

ON) or false (0 or OFF).
Query digital output line 2.
Set digital output line #3 true (1 or

ON) or false (0 or OFF).
Query digital output line 3.
Set digital output line #4 true (1 or

ON) or false (0 or OFF).
Query digital output line 4.

Table 31. STATus command summary

Commands Description

:STATus

:MEASurement

[:EVENt]?
:ENABle <NRf>
:ENABle?
:PTRansition <NRf>

:PTRansition?
:NTRansition <NRf>
:NTRansition?
:CONDition?

:OPERation

[:EVENt]?
:ENABle <NRf>
:ENABle?
:PTRansition <NRf>

:PTRansition?

Path to control measurement

event registers:
Read the event register.
Program the enable register.
Read the enable register.
Program the positive transi-

tion register.

Read the positive transition

register.

Program the negative transi-

tion register.

Read the negative transition

register.

Read the condition register.

Path to control operation event

registers:
Read the event register.
Program the enable register.
Read the enable register.
Program the positive transi-

tion register.

Read the positive transition

register.

83

Table 31. STATus command summary (cont.)

Commands Description

:STATus

:OPERation

:NTRansition <NRf>
:NTRansition?
:CONDition?

:ARM

[:EVENt]?
:ENABle <NRf>

:ENABle?
:PTRansition <NRf>

:PTRansition?
:NTRansition <NRf>
:NTRansition?
:CONDition?
:SEQuence

[:EVENt]?
:ENABle <NRf>

:ENABle?
:PTRansition <NRf>
:PTRansition?
:NTRansition <NRf>
:NTRansition?
:CONDition?

:TRIGger

[:EVENt]?
:ENABle <NRf>

Program the negative transi-

tion register.

Read the negative transition

register.
Read the condition register.
Path to control arm event

registers:

Read the event register.

Program the enable regis-

ter.
Read the enable register.
Program the positive tran-

sition register.
Read the positive transi-

tion register.
Program the negative tran-

sition register.
Read the negative transi-

tion register.
Read the condition regis-

ter.
Path to control the

sequence event regis-

ters:

Read the event register.

Program the enable reg-

ister.

Read the enable regis-

ter.

Program the positive

transition register.

Read the positive transi-

tion register.

Program the negative

transition register.

Read the negative tran-

sition register.

Read the condition reg-

ister.

Path to control trigger event

registers:
Read the event register.
Program the enable regis-

ter.

84

Table 31. STATus command summary (cont.)

Commands Description

:STATus

:OPERation

:TRIGger

:ENABle?
:PTRansition <NRf>

:PTRansition?
:NTRansition <NRf>
:NTRansition?
:CONDition?

:QUEStionable

[:EVENt]?
:ENABle <NRf>
:ENABle?
:PTRansition <NRf>

:PTRansition?
:NTRansition <NRf>
:NTRansition?
:CONDition?

:PRESet
:QUEue

[:NEXT]?
:ENABle <list>
:ENABle?

:DISable <list>
:DISable?

:CLEar

Read the enable register.
Program the positive tran-

sition register.

Read the positive transi-

tion register.

Program the negative tran-

sition register.

Read the negative transi-

tion register.

Read the condition regis-

ter.

Path to control questionable

event registers:
Read the event register.
Program the enable register.
Read the enable register.
Program the positive transi-

tion register.

Read the positive transition

register.

Program the negative transi-

tion register.

Read the negative transition

register.

Read the condition register.

Return status registers to

default states.

Path to access error queue:

Read the most recent error

message.

Specify error and status mes-

sages for queue.
Read the enabled messages.
Specify messages not to be

placed in queue.
Read the disabled messages.
Clears all messages from

Error Queue.

85

Table 32. SYSTem command summary

Command Description

:SYSTem

:PRESet
:POSetup <name>

:POSetup?
:FRSWitch?

:VERSion?
:ERRor?

:AZERo

:TYPE <name>
:TYPE?

:STATe <b>
:STATe?

:AMEThod <name>

:AMEThod?
:LSYNc

:STATe <b>

:STATe?
:KEY <NRf>
:KEY?
:CLEar

:FETCh

:FORMat <name>

Return to :SYST:PRES defaults.
Select power-on setup: RST, PRE-

Set, SAV0-SAV9.
Query power-on setup.
Query INPUTS switch (0 = rear, 1

= front).
Query revision level of SCPI stan-

dard.
Query (read) Error Queue.
Path to set up auto-zero.

Select auto-zero mode: NOR-

Mal, SYNChronous.
Query auto-zero mode (0 or 1).
Enable (1 or ON) or disable (0 or

OFF) auto-zero.
Query auto-zero (0 or 1).

Select reading acquisition method:

BURSt, NORMal, ASTReam,
SSTReam.

Query acquisition method.
Path to control line synchroniza-

tion of measurements.
Enable (1 or ON) or disable (0 or

OFF) line sync.
Query line sync (0 or 1).

Simulate key-press (1 to 31).
Query the last “pressed” key.
Clears messages from the Error

Queue.

Path to set fetch format.

Select format for :FETCh? com­mand; SCPI or FRESh.

86

Table 33. TRACe command summary

Command Description

:TRACe|:DATA

:CLEar [BUFFER,]
:FREE? [BUFFER,]

:EGRoup [BUFFER,] <name>
:EGRoup? [BUFFER,]

:POINts [BUFFER,] <n>

:AUTO [BUFFER,] <b>
:AUTO? [BUFFER,]

:POINts? [BUFFER,]
:FEED [BUFFER,] <name>

:PRETrigger

:AMOunt

[:PERCent] [BUFFER,]

<n>
[:PERCent]? [BUFFER,]
:READings [BUFFER,]

<n>
:READings? [BUFFER,]

:SOURce [BUFFER,]

<name>

:SOURce? [BUFFER,]

:CONTrol [BUFFER,]

<name>

:CONTrol? [BUFFER,]
:FEED? [BUFFER,]
:DATA? [BUFFER,]

Use :TRACe or :DATA as root

command.
Clear readings from buffer.
Query bytes available and

bytes in use.

Select element group:

FULL, COMPact.
Query element group.
Specify size of buffer.

Enable (1 or ON) or dis-

able auto buffer sizing.

Query state of auto

buffer sizing.
Query buffer size.
Select source of readings:

SENSe[1], CALCu­late[1], NONE.
Path to configure pre-

trigger storage mode.

Path to specify number

Select pre-trigger

Query pre-trigger

Select buffer control

mode:NEVer, NEXT,

ALWays, PRETrigger.

Query buffer control

mode.
Query source of readings

for buffer.

Read all readings in the

buffer.

of pre-trigger read­ings.
Specify as a % (0 to

100) of buffer.
Query percentage.
Specify as a number.

Query number of

readings.

source event:EXTer­nal, TLINk, BUS,
MANual.

source event.

87

Table 34. Trigger command summary

Command Description

:INITiate

[:IMMediate]
:CONTinuous <b>

:CONTinuous?
:ABORt
:ARM[:SEQuence[1]]

[:LAYer[1]]

:IMMediate
:COUNt <n>

:COUNt?
:SOURce <name>

:SOURce?
:SIGNal
:TCONfigure

:DIRection <name>

:DIRection?
:ASYNchronous

:ILINe <NRf>
:ILINe?
:OLINe <NRf>
:OLINe?

:LAYer2

:IMMediate
:COUNt <n>

:COUNt?
:DELay <n>

:DELay?
:SOURce <name>

:SOURce?
:TIMer <n>

:TIMer?
:SIGNal

Subsystem command path:

Initiate one trigger cycle.
Enable (1 or ON) or disable (0 or

OFF) continuous initiation of
trigger system.

Query continuous initiation.
Reset trigger system.
Subsystem command path to con-

figure arm layers:

Path to program arm layer 1:

Loop around control source.
Program arm count (1 to

99999, or INF).
Query arm count.
Select control source: HOLD,

IMMediate, MANual, BUS,

TLINk, EXTernal.
Query control source.
Loop around control source.
Path to configure Triggers:

Enable (SOUR) or disable

(ACC) Bypass: SOURce,

ACCeptor.
Query direction.
Path to configure asynchro-

nous Trigger Link:

Select input line (1 to 6).

Query input line.

Select output line (1 to 6).

Query output line.

Path to program arm layer 2:

Loop around control source.
Program scan count (1 to

99999 or INF).

Query scan count.
Program delay (0 to

999999.999 sec).

Query delay.
Select control source: HOLD,

IMMediate, TIMer, MANual,
BUS, TLINk, EXTernal.

Query control source.
Set timer interval (0 to

999999.999 sec).

Query timer.
Loop around control source.

88

Table 34. Trigger command summary (cont.)

Command Description

:ARM[:SEQuence[1]]

:LAYer2

:TCONfigure

:DIRection <name>

:DIRection?
:ASYNchronous

:ILINe <NRf>
:ILINe?
:OLINe <NRf>
:OLINe?

:TRIGger[:SEQuence[1]]

:IMMediate
:COUNt <n>

:COUNt?
:DELay <n>

:DELay?
:SOURce <name>

:SOURce?
:TIMer <n>

:TIMer?
:SIGNal

:TCONfigure

:PROTocol <name>
:PROTocol?

:DIRection <name>

:DIRection?
:ASYNchronous

:ILINe <NRf>
:ILINe?
:OLINe <NRf>
:OLINe?

Path to configure Triggers:

Enable (SOUR) or disable

(ACC) Bypass: SOURce,

ACCeptor.
Query direction.
Path to configure asynchro-

nous Trigger Link:

Select input line (1 to 6).

Query input line.

Select output line (1 to 6).

Query output line.

Path to program trigger layer:

Loop around control source.
Program measure count (1 to

99999, or INF).
Query measure count.
Program delay (0 to 999999.999

sec).
Query delay.
Select control source: HOLD,

IMMediate, TIMer, MANual,

BUS, TLINk, EXTernal.
Query control source.
Set timer interval (0 to

999999.999 sec).

Request the programmed timer

interval.
Loop around control source.
Path to configure Triggers:

Select protocol: ASYNchro-

nous, SSYNchronous.
Query protocol.
Enable (SOUR) or disable

(ACC) Bypass: SOURce,

ACCeptor.
Query direction.
Path to configure asynchro-

nous Trigger Link:

Select input line (1 to 6).

Query input line.

Select output line (1 to 6).

Query output line.

89

Table 34. Trigger command summary (cont.)

Command Description

:TRIGger[:SEQuence[1]]

:TCONfigure

:SSYNchronous

:LINE <NRf>
:LINE?

Path to configure semi-syn-

chronous Trigger Link:
Select trigger line (1 to 6).
Query trigger line.

Table 35. UNIT command summary

Command Description

:UNIT

:TEMPerature <name>
:TEMPerature?

:VOLTage

:AC <name>

:DB

:REFerence <n>
:REFerence?

:DBM

:IMPedance <n>
:IMPedance?

:AC?

Select temperature measurement

units: C, CEL, F, FAR, K.
Query temperature units.
Path to configure ACV units.

Select ACV measurement units:

V, DB, DBM.
Path to set DB reference volt-

age.
Specify reference in volts.
Query DB reference.

Path to set DBM reference

impedance.
Specify reference imped-

ance.

Query DBM reference

impedance.

Query ACV units.

90

Keithley Instruments, Inc.

28775 Aurora Road
Cleveland, Ohio 44139

Printed in the U.S.A.