Agilent Technologies Switch 34980A User Manual

How your 3499A/B/C Test System  
Benefits From Upgrading to the New  
34980A Switch/Measure/Control System  
Application Note  
Add functionality, streamline your test  
programs, and reduce the physical test  
system size by upgrading from your  
3499A/B/C to the new 34980A  
34980A Mainframe, plug-in modules and terminal cards  
Multifunction Switch/Measure Unit.  
This application note will describe  
differences and advantages of the  
new 34980A as compared to the  
3499A/B/C. The 34980A  
Switch/Measure System masters  
switching, measurement, and  
control features by offering a  
superior selection of switch  
topologies and system control  
features. A state-of-the-art DMM  
has been integrated into the  
34980A mainframe providing a  
wide variety of measure capability.  
The 34980A mainframe also  
includes standard PC connections  
and instrument control options for  
your ease of use.  
measurements are acquired. The  
34980A also has configurable  
Measurements  
One of the advantages of the new  
34980A is its ability to make  
highly accurate test system  
measurements. The integration of  
a high-speed DMM into the  
mainframe enhances the 34980A  
switch and control system by  
providing voltage, current,  
temperature, frequency, and  
resistance measurements without  
using any of the mainframe’s  
available eight slots. The DMM  
conveniently generates  
High/Low limits on each channel  
that activate an alarm if the input  
signals are out of the set range.  
The 34980A’s integrated DMM  
saves you time and money by  
reducing the number of individual  
instruments required, and  
additional cabling for  
measurements and triggering. In  
comparison, the 3499A/B/C  
switch requires an external DMM  
or other measurement instrument  
as well as additional wiring to  
provide the same functionality.  
measurement results in selectable  
engineering units. Eleven  
different types of measurements  
can be made and are listed on the  
page 2. The 34980A time-stamped  
measurement data can be stored  
or displayed and analyzed as the  
Discover the detailed advantages of  
upgrading your test system using  
the 34980A in this document.  
 
multiplexer switch module, a  
counter/timer and digital I/O with  
pattern generator/detector along  
with digital I/O and D/A  
converters. The 34980A RF and  
microwave switch drivers offer  
functionality for a broader range  
of RF/microwave switches being  
used by customers today.  
The 3499A/B/C does provide a  
selection of optics switching  
which is not available with the  
34980A. Table 2 shows the  
34980A and 3499A/B/C system  
modules organized by switch  
and/or measurement type. It is  
easy to compare and upgrade  
from the 3499A/B/C switch  
modules to the new 34980A  
switch modules as well as add  
new switch, measurement and  
control capabilities.  
Modules  
Benefits of the new 34980A  
modules vs 3499A/B/C modules  
The 34980A implements a  
superior selection of switch  
topologies. The 34980A switch  
topologies are similar to  
3499A/B/C switch modules and  
include multiplexers, matrixes,  
high-power, general purpose, and  
RF/microwave switches.  
However, the 34980A modules  
have utilized the newest switch  
technology which enables a higher  
density of channels per module,  
and the ability to achieve the  
faster scan rates with the  
integrated DMM. The 34980A  
offers other functionality used in  
test systems and includes digital  
I/O, a counter/totalizer and D/A  
converters. New 34980A  
Increased channel count per  
module with the same switch  
reliability  
Increased drivability for  
various RF/uWave switches  
High Speed FET multiplexer  
Reed Matrix switch  
Switch/attenuator driver  
Counter/Timer  
High Speed Digital I/O with  
memory  
Analog output with waveform  
capabilities  
Breadboard module  
with +5V, +12V  
functions include a FET  
With so many different types of  
switch modules to choose from,  
you can easily identify the  
modules from Table 2 that  
provide the best solution to meet  
your test application needs. For  
detailed module specifications,  
please refer to the product data  
sheets available at these web  
locations:  
http://www.agilent.com/find/34980A  
and  
3499A/B Mainframe and plug-in modules  
3
 
Table 2. Direct comparison of 34980A and 3499 modules  
Module Type  
34980A  
3499A/B/C  
Multiplexer  
34921A 40 Ch armature 300V 1A  
34922A 70 Ch armature 300V 1A  
34923A 40 Ch reed 200V .5A  
34924A 70 Ch reed 80V .5  
34925A 40 Ch FET +/-80V .5A  
34937A 28 Ch, 1A and 4 Ch, 5A  
34938A 20 Ch, 5A  
N2260A 40 Ch armature 200V 1A  
N2266A 40 Ch reed 200V .5A  
N2270A 10 Ch 1000V 1A  
44470A 10 Ch armature 250V 2A  
44470D 20 Ch armature 250V 2A  
N2261A 40 Ch  
N2267A 8 Ch, 8A  
44471A 10 Ch  
44471D 20 Ch  
General Purpose  
Matrix  
44477A 7 Ch SPDT (Form C)  
N2262A 4x8 armature 200V 1A  
44473A 4x4 armature 250V 2A  
34931A Dual 4x8 armature 300V 1A  
34932A Dual 4x16 armature300V 1A  
34933A Dual 4x8 reed 80V .5A  
Digital I/O  
See multifunction 34950A, 34952A  
N2263A 32-bit TTL  
44474A 16-bit TTL  
Multifunction  
34952A 32-bit Digital I/O with 2 Ch  
DAC and Counter/Timer  
34950A 64-bit Digital I/O with Pattern  
Generator/Detector  
N2264A 12 GP, 3 GP 5A, 16-bit Dig I/O  
N2265A 4x4 matrix, 16-bit Dig I/O  
N2269A 2 DAC, 16-bit Dig I/O  
Fiber-Optic Multiplexer  
RF & Microwave  
N2280A Quad 1x2  
N2281A Dual 1x4  
N2282A Single 1x8  
34941A Quad 1x4 RF 1.5G 50, SMA  
34946A 4G/20G 50, 2 SPDT SMA  
(N1810TL)  
34947A 4G/20G 50, 3 SPDT, SMA  
(N1810UL)  
N2268A Dual 1x4 3.5G 50Ω  
N2272A Single 1x9 1.0G 50Ω  
N2276A Dual 1x6 20G 50Ω  
(87106B/4B)  
44472A Dual 1x4 300M 50Ω  
44478A Dual 1x4 1.3G 50Ω  
44476A Triple 1x2 18G 50Ω  
(8762B)  
34942A Quad 1x4 RF 1.5G 75, mSMB  
34945A uwave Switch/Attn Driver  
32 SPDT or 8 attenuators  
The following µwave switches and  
attenuators are supported with  
the distribution1 boards;  
44478B Dual 1x4 1.3G 75Ω  
N2276B Relay driver (2 switches)  
Choose from switches;  
87104A/B/C  
87106A/B/C  
also drive two external attenuators  
84904/6/7/K/L  
N181x series SPDT switches  
876X series SPDT switches  
87104x/106x multi-port switches  
87606x series matrix switches  
8722x transfer switches  
44476B Relay driver (2 switches)  
Choose from switches;  
8762A/B/C/F  
849x series attenuators  
8763B/C  
8490x series attenuators  
8764B/C  
Generic screw terminal connections  
Third-party switches (screw terminals)  
34951A Quad 16-bit D/A Converter  
34959A +12 V, +5 V  
DAC  
Breadboard  
See multifunction  
44475A 5.5  
4
 
User Interface  
connecting to Agilent instruments  
you can access the Agilent  
similar to the 3499A/B/C’s but  
they are not interchangeable. A  
comparison of the commands is  
provided in appendix A. The  
34980A's IVI-C and IVI-COM  
drivers are similar to Plug & Play  
drivers, the 3499A/B/C's Plug &  
Play driver for example, but  
include improvements. The IVI  
(Interchangeable Virtual  
The 34980A offers the most  
modern instrument I/O options for  
interfacing a controller PC with the  
switch system: GPIB, USB and  
LAN. All three Input/Output  
interface connections come  
Technologies USB/LAN/GPIB  
Interfaces Connectivity Guide at  
With LAN, the instrument can be  
located closer to the device under  
test without worrying about the  
distance to the PC. A USB to  
instrument connection is even  
easier. The computer  
standard with the 34980A  
mainframe. If you choose to modify  
or upgrade your test system I/O,  
the 34980A is system ready.  
Instruments) driver specification  
was built upon the Plug&Play  
driver specification but adds the  
capabilities provided by the  
automatically detects instruments  
that are USB ready. If you are  
currently using the 3499A/B/C  
You can also easily control the  
34980A without connecting to a PC  
by pressing the front-panel buttons,  
an advantage when first setting up  
or troubleshooting a system.  
RS232 interface, it is recommended Microsoft ActiveX technologies  
to upgrade to the 34980A GPIB,  
USB or LAN interface to achieve  
optimal data transfer rates.  
which simplify instrument  
interchangeability, and product  
performance. The 34980A also  
includes many new commands for  
the operation of the embedded  
DMM. A 34980A Web interface  
provides a new easy way to  
communicate via LAN with the  
instrument.  
Upgrading your test system from  
using the 3499A/B/C GPIB to the  
34980A GPIB, or newer USB or  
LAN is quick and easy. If you have  
used I/O Config from the Agilent  
I/O Libraries to set your GPIB  
instrument connection, you would  
use the same I/O Config to set up  
your LAN or “TCPIP” instrument  
connection. Retrieve the LAN,  
TCPIP address from your  
instrument and enter it into I/O  
Config. When you address your  
instrument in a program, it will  
look similar to; TCPIP0::9::INSTR.  
For more information on  
Instrument Control  
(Programming)  
The 34980A and 3499A/B/C can  
both be controlled locally from the  
front panel, or by sending either  
instrument or driver commands  
from a PC for remote control. The  
34980A’s instrument commands  
and drivers are based on modern  
standards such as SCPI (standard  
commands for programmable  
instruments) and IVI-C and IVI  
COM drivers. The SCPI instrument  
commands of the 34980A are  
Table 3 shows a summary of the  
programming control options  
available for the 3499A/B/C and the  
34980A. There is similarity between  
the instrument commands, however,  
the 34980A has evolved to use the  
most modern and widely accepted  
instrument command standards.  
Table 3. Control Options for 3499A/B/C and 34980A  
3499A/B/C  
34980A  
Front Panel Buttons  
3488 Legacy Commands  
SCPI Commands  
Plug & Play driver  
IVI COM driver  
G
G
G
G
G
G
G
G
G
G
G
IVI-C driver  
LabVIEW driver  
Web Interface  
5
 
Listed below are each of the many ways available to communicate and  
control the 34980A, the communication options and their description  
Web Page Interface  
The 34980A comes with a built-in  
detailed instrument web page that  
allows you to remotely connect and  
communicate with the mainframe  
and installed modules. You  
establish a LAN connection, either  
directly between the 34980A and  
PC, or from the 34980A to an  
existing Local Area Network. The  
instrument Web page resides on  
the 34980A and can be accessed  
using a standard web browser such  
as Netscape or Internet Explorer  
on a PC. Just type the IP address  
into the web browser. The web  
interface allows you to select any of  
the installed modules and view the  
current configuration, change  
settings, make measurements, and  
makes it easy to troubleshoot or  
debug the switch/measure system.  
The instrument web interface also  
allows you to check the current  
status of the instrument by viewing  
the error queue, calibration status  
and the accumulated module  
Web interface display for 34921A MUX Switch module  
switch closures.  
Web interface display of scanned measurements  
6
 
SCPI Commands  
The 34980A can be programmed  
using SCPI commands or the IEEE  
standard commands.  
Configuration, measurements and  
system control of the mainframe  
and modules are easily achieved  
using these instrument commands.  
and channel(s) rather than only  
three digits as the 3499A/B/C  
uses. Also, for the 3499A/B/C the  
[ROUTe] in the command  
structure is optional, where with  
the 34980A it is required.  
IVI-C, IVI COM and LabVIEW  
instrument drivers  
34980A IVI-C, IVI COM and  
LabVIEW instrument drivers are  
available for simplified  
programming. If you currently  
program using Plug&Play drivers,  
the IVI-C driver is similar and can  
be used to program in the same  
way. The IVI COM driver conforms  
to the most modern IVI COM  
instrument driver standard and  
can be used in any programming  
environment. LabVIEW  
The 34980A offers new  
measurement and module  
capabilities such as counter/timer  
One difference between  
instrument commands for the  
3499A/B/C and the 34980A relates and digital I/O with pattern  
to addressing specific channels in  
the system. Table 4 shows an  
example difference in 3499A/B/C  
switch control commands  
compared to 34980A commands.  
Notice the 34980A uses four digits  
to address the module slot number  
generator/detector that use  
commands unique to their  
functionality. Appendix A includes  
a list of the 34980A and 3499A/B/C  
commands as well as direct  
programmers are able to use the  
34980A LabVIEW instrument  
driver for their graphical  
comparisons of the commands.  
programming environment.  
Table 4. Command comparisons  
34980A  
3499A/B/C  
Close channel 10 on the module in slot 3  
ROUTe:CLOS (@3010)  
[ROUTe:]CLOS (@310)  
Scan channels 0 through 40 on the module in slot 1  
ROUTe:SCAN (@1001:1040)  
[ROUTe:]SCAN (@100:140)  
Example program. 34980A SCPI commands in VEE  
7
 
Although the 34980A scan feature  
can be used with either the  
The 3499A/B/C cannot store  
readings but does offer more scan  
configurability. For example,  
once a 3499A/B/C scan list is set  
up, the user can select an arm  
source, a trigger source, the  
number of sweeps, and the delay  
time for each individual channel  
within the scan list.  
Scan Feature  
The scan feature is a sequence of  
alternating switch closures and  
measurements. This feature is  
provided by both the 34980A and  
a 3499A/B/C combined with a  
DMM or other measurement  
instrument. The 34980A increases  
the measurement scan abilities  
and offers more than twice the  
number of scanned channels  
within one scan list compared to  
the 3499A/B/C as seen here.  
internal DMM or with an external  
instrument, using the integrated  
DMM provides a faster and more  
efficient scan rate. The integrated  
DMM eliminates the need for  
external instrument triggers and  
wiring. The 3499A/B/C scan list  
requires the use of instrument  
triggers to work with an external  
DMM or other measurement  
instrument. Each switch module is  
rated with individual switch scan  
rates. A comparison of the scan  
rates for both systems Multiplexer  
and Matrix switch modules is  
shown in Table 5 below.  
Single Scan List Size:  
34980A  
Up to 560  
2-wire channels  
or  
Another advantage the 34980A  
system has over the 3499A/B/C  
system is its ability to store  
Up to 640  
1-wire channels  
measurement readings. When the  
34980A internal DMM is used, up  
to 500,000 time stamped readings  
can be stored in volatile memory.  
3499A/B/C Up to 200 channels  
and/or bits  
Table 5. 34980A and 3499A/B/C Multiplexer & Matrix module scan rates  
Module Type  
34980A  
Modules  
Scan Rate  
Ch/s  
3499A/B/C  
Modules  
Scan Rate  
Ch/s  
Multiplexer  
34921A 40 Ch armature  
34922A 70 Ch armature  
34923A 40 Ch reed  
100  
100  
500  
500  
1000  
100  
100  
500  
N2260A 40 Ch armature  
N2266A 40 Ch reed  
N2270A 10 Ch  
80  
350  
100  
43  
34924A 70 Ch reed  
44470A 10 Ch armature  
44470D 20 Ch armature  
N2262A 4x8 armature  
44473A 4x4 armature  
34925A 40 Ch FET  
43  
Matrix  
34931A Dual 4x8 armature  
34932A Dual 4x16 armature  
34933A Dual 4x8 reed  
80  
43  
8
 
The 3499A/B/C monitor feature  
allows users to continuously  
monitor a selected switch or  
module status from the front  
display. A channel monitor can  
be set up using the front panel  
buttons or instrument commands.  
The 3499A/B/C monitor output  
can be a specific switching  
channel, a digital I/O port or the  
state of all switches or digital I/O  
on one plug-in module. The  
3499A/B/C allows a single  
channel to be monitored  
Monitor Feature  
Stored State Feature  
The 34980A monitor feature  
allows you to monitor readings  
acquired by the switch/measure  
system. You can also monitor  
readings acquired with the  
34980A internal DMM. To  
monitor a measurement from the  
front panel, simply select the  
channel and press either the  
Measure [DMM] or [Channel]  
button to see a continually  
updated channel output or state  
on the front display. For  
The 34980A is also able to  
store/recall up to six (0 through  
5) instrument setups. A stored  
setup state can be automatically  
recalled at any time, even during  
a power up state. The stored  
state feature contains the state of  
the plug-in modules including  
channel configurations, scanning  
setups, alarm values, and Mx + B  
scaling values. Location 0 is  
typically used for the Factory  
Reset and power down state, but  
can also be programmed with a  
new setup.  
continuously even during an  
instrument scan.  
programs, use the  
ROUTe:MONitor:DATA?  
Command. The command reads  
the data from the channel  
The 3499A/B/C is able to store  
and recall up to 50 instrument  
setup states with revision 4.0.  
The instrument setups include the  
status of relay channels, and/or  
the static digital I/O state, module  
configuration, and scanning  
setups (scan lists, arm count, arm  
source, etc.). The 3499A/B/C is  
not able to automatically power  
up in a stored state.  
currently selected by the Monitor  
function. One reading is displayed  
for each monitor command. The  
Web interface can also be used to  
monitor a channel measurement.  
9
 
(Dsub50 and Dsub78) are low cost  
and readily available from many  
sources. The detachable screw  
terminal blocks are easy to wire  
and include built-in cable strain  
relief. The screw terminals attach  
to the switch modules with a  
secure latching mechanism for  
ease of use and improved  
connection reliability. No tools  
are required to easily connect and  
disconnect the wired terminals.  
The 3499 terminals are secured to  
The 34980A terminal wiring and  
cables are different from that of  
the 3499A/B/C. However, they  
offer a better solution to test  
system interface due to the use of  
highly reliable standard  
Switch and Measurement  
Connections  
Most often, test systems must be  
flexible enough to be easily moved  
to a new location or modified for  
different devices under test.  
connectors and low cost cables.  
Having a removable wiring  
terminal block or a pre-wired cable  
is optimal in these situations. The  
module’s terminal and/or cable  
can simply be removed and  
replaced with a different terminal  
for the new test configuration. This  
prevents the need to rewire the  
same terminal each time for  
Refer to Table 2 for the modules  
that have optional terminal  
blocks or the 34980A data sheet  
for specific module wiring  
connection details:  
the module and housing by screws http://www.agilent.com/find/34980A.  
at the end of the terminals and  
require a screwdriver to remove  
or replace.  
The 3499A/B/C offers removable  
screw terminal blocks for many of  
the modules and also an option for  
pre-wired DIN96 to quad D25, or  
dual D50 cables. Some of the  
modules such as the Optics,  
Microwave and RF modules  
include the SMA or BNC terminals  
for application specific  
different applications.  
Fortunately, both the 34980A and  
3499A/B/C provide the removable  
terminals and pre-wired cables so  
changing your test system wiring  
from the 3499A/B/C to the 34980A  
is fairly simple.  
For more complex test system  
wiring, mass interconnect (one  
location in a system where the  
switch, instruments and DUT are  
interconnected) is made easy by  
using solutions provided by  
The 34980A offers the ability to  
use either standard Dsub 50 and  
Dsub 78 connectors/cables,  
detachable terminal cards or mass  
interconnect connections. The RF  
and Microwave modules include  
standard connectors such as SMA  
and SMB. The 34980A cables  
connection experts. The standard  
Dsub 50 and Dsub 78 connectors  
make it faster and easier for Mass  
Interconnect suppliers to provide a  
test system wiring solution. The  
easy to use connections facilitate  
time and cost savings for test  
systems using the 34980A.  
connections. Refer to Table 2 for  
modules that include terminals.  
34980A Modules and Std DSub 50/78 connectors  
3499A/B/C Modules and Terminals  
10  
 
There are a few specialized  
features the 3499 offers that are  
not available with the new  
34980A. It is good to be aware of  
the differences as you upgrade to  
the newer system.  
Features that differentiate  
new 34980A:  
Summary  
Although the 3499A/B/C  
FET switches for long life, high  
speed measurement scans and the  
latest in technology Armature and  
Reed relays for both Multiplexer  
and Matrix switching  
Switch/Control system has been a  
great addition to many test  
systems, the new 34980A now  
offers an even better module  
selection plus measurement  
capability, standard PC  
connections for communication,  
and is easy to connect to modules.  
The wide offering of plug-in  
modules for the 34980A enables  
you to select a configuration for  
your specific application needs.  
3499A/B/C differentiating features  
Analog bus for joining modules,  
connecting to external instruments,  
accessing internal DMM.  
4 dig I/O ports built into mainframe  
doesnt require a module  
Fiber-Optic modules  
Up to 5A general purpose switch  
addresses the most common high  
power and device control  
applications.  
1000V multiplexer module  
The 34980A Switch/Measure unit  
can be used in the same  
applications as the 3499A/B/C  
including design verification,  
functional test and data  
Bread board with +12V and +5V  
supplies for more design flexibility.  
Integrated DMM and measurement  
capability save you time versus  
programming with an external  
measurement instrument, and  
money with the switch and DMM  
in one instrument.  
acquisition applications. It can  
also be used in many new  
applications such as for data  
logging, as a data acquisition  
system and/or as a switch system.  
It can even provide a solution for  
applications requiring transducer-  
based measurements such as  
thermocouple or strain. The  
34980A offers a great switch,  
measurement and test system  
control solution at a great value.  
Up to 1000 readings/sec scan rate  
for higher speed applications  
GPIB and new USB and LAN  
interfaces provide flexibility, lower  
cost, higher data transfer rates,  
and are the emerging trend of  
choice of interfaces.  
Up to 70 Ch per module offer  
higher density solutions  
Standard module connectors &  
cables offer an easy connection  
and for Mass interconnect  
solutions.  
Screw terminals with latching  
mechanisms are easy to remove  
and replace and securely fastened  
when in use.  
Web interface to quickly and easily  
test or debug the test system  
switching.  
Large memory buffer for acquired  
measurements.  
11  
 
Appendix A – Command Reference/Comparison  
34980A Commands  
3499A/B/C Commands  
ABORt  
ABORt  
ARM  
:SOURce  
BUS|EXTernal|IMMediate|TIMer|MIX/HOLD  
:SOURce?  
:COUNt  
<number>|MIN| MAX  
:TIMer  
<seconds>|MIN|MAX  
:TIMer?  
CALCulate  
:AVERage:AVERage?  
:AVERage:CLEar  
:AVERage:COUNt?  
:AVERage: MAXimum?  
:AVERage:MAXimum:TIME?  
:AVERage:MINimum?  
:AVERage:MINimum:TIME?  
:AVERage:PTPeak?  
:LIMit:LOWer  
:LIMit:LOWer?  
:LIMit:LOWer:STATe  
:LIMit:LOWer:STATe?  
:LIMit:UPPer  
:LIMit:UPPer?  
:LIMit:UPPer:STATe  
:LIMit:UPPer:STATe?  
:SCALe:GAIN  
:SCALe: GAIN?  
:SCALe:OFFSet  
:SCALe:OFFSet?  
:SCALe: OFFSet:NULL  
:SCALe: STATe  
:SCALe: STATe?  
:SCALe:UNIT  
:SCALe: UNIT?  
CALibration  
:COUNt?  
:LFRequency?  
:SECure:CODE  
SECure:STATe  
:SECure:STATe?  
:SETup  
:SETup?  
:STRing  
:STRing?  
:VALue  
:VALue?  
CALibration?  
CONFigure  
CONFigure  
:EXTernal[:TRIGger]  
:SOURce  
:SOURce?  
[:OUTPut]  
0|1|OFF|ON  
[:OUTPut]?  
12  
 
34980A Commands (contd.)  
3499A/B/C Commands (contd.)  
:CURRent:AC  
:CURRent[:DC]  
:DIGital:STATe  
:DIGital:WIDTh  
:FREQuency  
:FRESistance  
:PERiod  
:RESistance  
:TEMPerature  
:TOTalize  
[:VOLTage]:AC  
[:VOLTage][:DC]  
CONFigure?  
DATA  
:LAST?  
:POINts:EVENt:THReshold  
:POINts:EVENt:THReshold?  
:POINts?  
:REMove?  
DIAGnostic  
:DMM:CYCLes:CLEar  
DIAGnostic  
:DMM:CYCles?  
:RELay CYCles:CLEar  
:RELay:CYCLes?  
[:RELay]:CYCLes:CLEar  
[:RELay]:CYCLes?  
[:RELay]:CYCLes:CLEar  
[:RELay]:CYCLes?  
[:RELay]:CYCLes:MAX?  
:DISPlay[:INFOrmation]  
:DISPlay:STATe?  
:MONitor  
:MONitor?  
:SPEEK?  
:SPOKE  
DISPlay  
[:STATe]  
[:STATe]?  
:TEXT  
:TEXT ?  
:TEXT:CLEar  
FETCh?  
FORmat  
FETCh?  
:BORDer  
:READing:ALARm  
:READing:ALARm?  
:READing:CHANnel  
:READing:CHANnel?  
:READing:TIME  
:READing:TIME?  
:READing:TIME:TYPE  
:READing:TIME:TYPE?  
:READing:UNIT  
:READing:UNIT?  
INITiate  
INITiate  
INSTrument  
:DMM:CONNect  
:DMM:DISConnect  
:DMM:INSTalled?  
:DMM[:STATe]  
:DMM[:STATe]?  
MEASure  
13  
 
34980A Commands (contd.)  
3499A/B/C Commands (contd.)  
:CURRent:AC?  
:CURRent[:DC]?  
:DIGital[:<width>]?  
:DIGital[:BYTE]:BIT?  
:FREQuency?  
FRESistance?  
:PERiod?  
:RESistance?  
:TEMPerature?  
:TOTalize?  
[:VOLTage]:AC?  
[:VOLTage][:DC]?  
MEMory  
:STATe:CATalog?  
:STATe:DELete  
:STATe:NAME  
:STATe:NAME?  
:STATe:RECall:AUTO  
:STATe:RECall:AUTO?  
:STATe:RECall:SELect  
:STATe:RECall:SELect?  
:STATe:VALid?  
OUTPut  
:ALARm<n>:CLEar  
:ALARm:MODE  
:ALARm:MODE?  
:ALARm:SLOPe  
:ALARm: SLOPe?  
:ALARm<n>:SOURce  
:ALARm<n>:SOURce?  
[:STATe]  
R?  
READ?  
ROUTe  
[ROUTe:]  
:CHANnel:ADVance:SOURce  
:CHANnel:ADVance:SOURce?  
:CHANnel:DELay  
[CHANnel:]DELay  
[CHANnel:]DELay?  
:CHANnel:DELay?  
:CHANnel:DELay:AUTO  
:CHANnel:DELay:AUTO?  
:CHANnel:FWIRe  
:CHANnel:FWIRe?  
:CHANnel:LABel:CLEar:MODule  
:CHANnel:LABel[:DEFine]  
:CHANnel:VERify[:STATe]  
:CLOSe  
CLOSe  
:CLOSe?  
CLOSe?  
:MODule:BUSY?  
:MODule:WAIT  
:MONitor[:CHANnel]  
:MONitor[:CHANnel]ENABle  
:MONitor:DATA?  
:MONitor:MODE  
:MONitor:STATe  
:MONitor:STATe?  
:OPEN  
OPEN  
:OPEN?  
OPEN?  
:OPEN:ABUS  
:OPEN:ALL  
:OPERation:OVERlap[ENABle]  
14  
 
34980A Commands (contd.)  
3499A/B/C Commands (contd.)  
:SCAN  
:SCAN:ADD  
:SCAN:REMove  
:SCAN:SIZE?  
SCAN:SIZE?  
SCAN[:LIST]?  
SCAN[:LIST]  
SCAN CLEar  
CPAir  
CPAir?  
FUNCtion  
FUNCtion?  
SAMPle  
SENSe  
:COUNt  
:COUNt?  
SENSe  
:DIGital  
:DATA:BIT?  
:DATA[:<BYTE|WORD|LWORD>[:VALue]?  
:DATA[:<BYTE|WORD|LWORD>:BLOCK?  
:DATA[:<BYTE|WORD|LWORD>:TRACE  
:TRACe[:DATA]?  
:CURRent:AC  
:BANDwidth  
:BANDwidth?  
:RANGe  
:RANGe?  
:RANGe:AUTO  
:RANGe:AUTO?  
:CURRent[:DC]  
:APERture:ENABled?  
:APERture  
:NPLC  
:NPLC?  
:RANGe  
:RANGe?  
:RANGe:AUTO  
:RANGe:AUTO?  
:RESolution  
:RESolution?  
:ZERO:AUTO  
:DIGital:DATA[:<width>]?  
:DIGital:DATA[BYTE]:BIT?  
:FREQuency  
:APERture  
:APERture?  
:RANGe:LOWer  
:RANGe:LOWer?  
:VOLTage:RANGe  
:VOLTage:RANGe?  
:VOLTage:RANGe:AUTO  
:VOLTage:RANGe:AUTO?  
:FRESistance  
:APERture  
:APERture:ENABled?  
:NPLC  
:NPLC?  
:OCOMpensated  
:OCOMpensated?  
:RANGe  
:RANGe?  
:RANGe:AUTO  
15  
 
34980A Commands (contd.)  
3499A/B/C Commands (contd.)  
:RANGe:AUTO?  
:RESolution  
:RESolution?  
:ZERO:AUTO  
:FUNCtion  
:FUNCtion?  
:PERiod:APERture  
:PERiod:VOLTage:RANGe  
:VOLTage:RANGe?  
:VOLTage:RANGe:AUTO  
:VOLTage:RANGe:AUTO?  
:PERiod:ZERO:AUTO  
:RESistance:APERture  
:APERture?  
:ALPERture:ENABled?  
:NPLC  
:NPLC?  
:OCOMpensated  
:OCOMpensated?  
:RANGe  
:RANGe?  
:RANGe:AUTO  
:RANGe:AUTO?  
:RESolution  
:RESolution?  
:ZERO:AUTO  
:TEMPerature:ABERture  
:APERture:ENABled?  
:NPLC  
:NPLC?  
:TRANsducer:Tcouple:IMPedance:AUTo  
:Tcouple:CHECk  
:RJUNction  
:RJUNction:TYPE  
:TYPE  
:TRANsducer:TYPE  
:FRTD:RESistance  
:FRTD:TYPE  
:RTD:RESistance  
:RTD:TYPE  
:THERmistor:TYPE  
:ZERO:AUTO  
:RJUNction?  
:TOTalize:CLEar:IMMediate  
:DATA?  
:SLOPe  
:THReshold[:MODE]  
:TYPE  
:VOLTage  
:AC:BANDwidth  
:AC:BANDwidth?  
:AC:RANGe  
:AC:RANGe?  
:AC:RANGe:AUTO  
:AC:RANGe:AUTO?  
[:DC]:APERture  
[:DC]:APERture?  
[:DC]:APERture:ENABled?  
[:DC]:IMPedance:AUTO  
[:DC]:NPLC  
16  
 
34980A Commands (contd.)  
3499A/B/C Commands (contd.)  
[:DC]:NPLC?  
[:DC]:RANGe  
[:DC]:RANGe?  
[:DC]:RANGe:AUTO  
[:DC]:RANGe:AUTO?  
[:DC]:RESolution  
[:DC]RESolution  
[:DC]:ZERO:AUTO  
[:DC]:ZERO:AUTO?  
SOURce  
SOURce  
:CURRent[:LEVel]  
:CURRent[:LEVel]?  
:DIGital  
:MODE  
:MODE?  
:CONTrol:POLarity  
:CONTrol:POLarity?  
:FLAG:POLarity  
:FLAG:POLarity?  
:IO:POLarity  
:IO:POLarity?  
:DATA[:<BYTE|WORD|LWORD>:POLarity  
:DATA[:<BYTE|WORD|LWORD>:POLarity?  
:DATA:BIT  
:DATA[:<BYTE|WORD|LWORD>[:VALue]  
:DATA[:<BYTE|WORD|LWORD>:BLOCK  
:DATA[:<BYTE|WORD|LWORD>:TRACE  
:TRACe:DEFine  
:TRACe:DEFine?  
:TRACe:CATalog?  
:TRACe[:DATA]  
:TRACe:DELete[:NAME]  
:TRACe:DELete:ALL  
:DIGital:DATA[:<width>]  
:DIGital:DATA[BYTE]:BIT  
:DIGital:STATe?  
:FUNCtion:CLOCk:EXTernal:DIVisor  
:CLOCk[INTernal]:PERiod  
:CLOCk:SOURce  
:CURRent:GAIN  
:CURRent:OFFSet  
:ENABle  
:FREQuency  
:HALT  
:STATus?  
:TRACe:NCYCles  
:TRACe[NAME]  
:TRACe:SINDex  
:TRIGger:IMMediate  
:TRIGger:SOURce  
:VOLTage:GAIN  
:VOLTage:OFFSet  
:MODE  
:MODE?  
:VOLTage[:LEVel]  
:VOLTage[:LEVel]?  
STATus  
STATus  
:ALARm:CONDition?  
:ALARm:ENABle  
17  
 
34980A Commands (contd.)  
3499A/B/C Commands (contd.)  
:ALARm:ENABle?  
:ALARm[:EVENt]?  
:MODule:ENABle  
:MODule:EVENt?  
:MODule:SLOT[n]:CONDition?  
:MODule:SLOT[n]:ENABle  
:MODule:SLOT[n][:EVENt]?  
:OPERation:CONDition?  
:OPERation:ENABle  
:OPERation:ENABle?  
:OPERation[:EVENt]?  
:PRESet  
:OPERation:CONDition?  
:OPERation:ENABle  
:OPERation: ENABle?  
:OPERation[:EVENt]?  
:PRESet  
:QUEStionable:CONDition?  
:QUEStionable:ENABle  
:QUEStionable:ENABle?  
:QUEStionable[:EVENt]?  
SYSTem  
SYSTem  
:ABUS:INTerlock:SIMulate  
:ALARM?  
:BEEPer  
:BEEPer:STATe?  
:CDEScription?  
:COMMunicate:ENABle  
:GPIB:ADDRess  
:LAN:AUTOip  
:LAN:BSTatus?  
:LAN:CONTrol?  
:LAN:DHCP  
:LAN:DNS  
:LAN:DOMain  
:LAN:GATEway  
:LAN:HISTory?  
:LAN:HISTory:CLEar  
:LAN:HOSTname  
:LAN:IPADdress  
:LAN:KEEPalive  
:LAN:MAC?  
:LAN:SMASk  
:LAN:TELNet:PROMpt  
:LAN:TELNet:WMESsage  
:CPON  
:CTYPe?  
:DATE  
:CPON  
:CTYPe?  
:DATE?  
:ERRor?  
:ERRor?  
:KLOCk:EXCLude  
:KLOCk:EXCLude?  
:KLOCk[:STATe]  
:KLOCk[:STATe]?  
:LOCK:OWNer?  
:LOCK:RELease  
:LOCK:REQuest?  
:MODule?  
:MODule:PFAil:JUMPer:AMP5?  
:MODule:WIRE:MODE  
:MODule:TEMPerature?  
:PRESet  
:SECurity:IMMediate  
:TIME  
18  
 
34980A Commands (contd.)  
3499A/B/C Commands (contd.)  
:TIME?  
:TIME:SCAN?  
:VERSion?  
:VERSion?  
:LOCal  
:REMote  
:RWLock  
:STATe:DELete  
TRACe:CATalog?  
[:DATA]  
[:DATA]:DAC  
[:DATA]:FUNCtion  
:DELete:ALL  
:DELete[:NAME]  
:FREE?  
:POINts?  
TRIGger  
TRIGger  
[:IMMediate]  
:COUnt  
:COUNt?  
:DELay  
:DELay?  
:DELay:AUTO  
:DELay:AUTO?  
:SOURce  
:SOURce?  
:TIMer  
:SOURce  
:SOURce?  
:TIMer  
:TIMer?  
TIMer?  
UNIT  
:TEMPerature  
:TEMPerature?  
IEEE-488.2 Common Commands  
*CLS  
IEEE-488.2 Common Commands  
*CLS  
*ESE *ESE?  
*ESR?  
*OPC *OPC?  
*IDN?  
*OPC *OPC?  
*PSC *PSC?  
*RCL  
*RST  
*SAV  
*SRE *SRE?  
*STB?  
*TRG  
*TST?  
*WAI  
19  
 
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