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Model 7001 Switch System
Quick Reference Guide
A GREATER MEASURE OF CONFIDENCE
Model 7001 Switch System
Quick Reference Guide
1992, Keithley Instruments, Inc.
All rights reserved.
Cleveland, Ohio, U.S.A.
Document Number: 7001-903-01 Rev. A
Table of Contents
Safety Precautions ....................................................... 1
Introduction ................................................................ 5
Operation Summary .................................................... 6
Menu Structures .........................................................11
Default Conditions .................................................... 16
Error and Status Messages ......................................... 19
IEEE-488.2 Common Commands and Queries........... 25
SCPI Command Subsystems ...................................... 27
Safety Precautions
The following safety precautions should be observed before
using this product and any associated instrumentation. Al-
though 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 pre-
cautions required to avoid possible injury. Read the operat-
ing information carefully before using the product.
The types of product users are:
Responsible body is the individual or group responsible for
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.
Operators use the product for its intended function. They
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 perform routine procedures on the
product to keep it operating, for example, setting the line
voltage or replacing consumable materials. Maintenance
procedures are described in the manual. The procedures ex-
plicitly state if the operator may perform them. Otherwise,
they should be performed only by service personnel.
Service personnel are trained to work on live circuits, and
perform safe installations and repairs of products. Only
properly trained service personnel may perform installation
and service procedures.
Keithley products are designed for use with electrical signals
that are rated Installation Category I and Installation Catego-
ry II, as described in the International Electrotechnical Com-
mission (IEC) Standard IEC 60664. Most measurement,
control, and data I/O signals are Installation Category I and
must not be directly connected to mains voltage or to voltage
sources with high transient over-voltages. Installation Cate-
gory II connections require protection for high transient
1
over-voltages often associated with local AC mains connec-
tions. The user should assume all measurement, control, and
data I/O connections are for connection to Category I sources
unless otherwise marked or described in the Manual.
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) states that a shock hazard exists when voltage levels
greater than 30V RMS, 42.4V peak, or 60VDC are present.
A good 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 poten-
tial 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, no conductive part of the circuit may be exposed.
Do not connect switching cards directly to unlimited power
circuits. They are intended to be used with impedance limit-
ed sources. NEVER connect switching cards directly to AC
mains. When connecting sources to switching cards, install
protective devices to limit fault 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.
When installing equipment where access to the main power
cord is restricted, such as rack mounting, a separate main in-
put power disconnect device must be provided, in close prox-
imity to the equipment and within easy reach of the operator.
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 sys-
tem and discharge any capacitors before: connecting or dis-
connecting cables or jumpers, installing or removing
2
switching cards, or making internal changes, such as install-
ing or removing jumpers.
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 with-
standing 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 operat-
ing information, and as shown on the instrument or test fix-
ture 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 connec-
tions.
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 man-
ual.
The symbol on an instrument shows that it can source
or measure 1000 volts or more, including the combined ef-
fect of normal and common mode voltages. Use standard
safety precautions to avoid personal contact with these volt-
ages.
The WARNING heading in a manual explains dangers that
might result in personal injury or death. Always read the as-
3
sociated information very carefully before performing the
indicated procedure.
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, replace-
ment 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 compo-
nent, 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 ap-
ply 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 con-
taminated and operation is affected, the board should be re-
turned to the factory for proper cleaning/servicing.
All Keithley product names are trademarks or registered trade-
marks of Keithley Instruments, Inc.
Other brand and product names are trademarks or registered
trademarks of their respective holders.
4
Introduction
This quick reference guide includes summary informa-
tion on front panel and IEEE-488 operation for the
Model 7001 Switch System. For detailed information,
consult the Model 7001 Instruction Manual.
5
Operation Summary
Channel List and Scan List
A Channel List specifies the channels to be closed or
opened, and a Scan List specifies the channels to be
scanned. Each channel in the list is made up of either a
two integer CHANNEL number (for non-matrix type
cards) or a three integer CHANNEL number (for matrix
type cards). Examples:
1!2 = Slot 1, Channel 2
2!4 = Slot 2, Channel 4
1!2!3 = Slot 1, Row 2, Column 3
2!3!6 = Slot 2, Row 3, Column 6
Front panel operation
A Channel List is created with the SELECT CHANNELS
prompt displayed, and a Scan List is created with the
SCAN CHANNELS prompt displayed. The SCAN LIST
key toggles the display between the Channel List and
the Scan List.
Channels are entered into a Channel List and Scan List
using the keypad. The following examples demonstrate
proper format.
SELECT CHANNELS 1!1, 1!5-1!10, 2!1!1, M1,
SCAN CHANNELS 1!10-1!1, 2!1!3, M1,
Each entry is separated by a comma (,) which is inserted
by pressing the right cursor key ( ) or the ENTER key.
Notice that a comma is also used to terminate the list. A
channel range is specified by separating the range limits
6
with a hyphen (-). The M1 entry represents a channel
pattern that is stored in memory (see STORE and
RECALL).
Edit keys A list can also be modified by using the edit
keys; DELETE and INSERT. A channel entry can be
deleted by placing the cursor on the desired entry and
pressing DELETE. To insert an entry, press INSERT
(INSERTING ENTRY displayed), place the cursor at the
appropriate location, and key in the new entry. Make
sure to insert a comma after keying in the channel entry.
When finished, press INSERT again to cancel the insert
function.
IEEE-488 bus operation
Over the bus, the Channel List is included with the
commands that are used to close or open channels. See
Closing and Opening Channels. The Scan List is created
using the :SCAN command. The following example
demonstrates proper format:
:SCAN (@ 1!10:1!1, 2!1!3, M1)
Note that range limits are separated by a colon (:), and
the last channel entry in the list is not terminated with a
comma.
Closing and Opening Channels
Front panel operation
Channels specified in the Channel List are closed by
pressing the CLOSE key. Channels specified in the
Channel List are opened by pressing the OPEN key.
7
Note that the OPEN ALL key will open all channels,
including those not specified in the Channel List.
IEEE-488 bus operation
Over the bus, the :CLOSe and :OPEN commands are
used to control channels. Note that the Channel List is
included with the following examples:
:CLOSe (@ 1!1, 1!5:1!10, 2!1!1, M1)
:OPEN (@ 1!1, 1!5:1!10, 2!1!1, M1)
Note that a colon (:) is used to separate range limits, and
a comma is not used to terminate the list. The following
command is analogous to the front panel OPEN ALL key
and will simply open all channels:
:OPEN ALL
Scanning Channels
Channels are scanned in the order that they are pre-
sented in the Scan List.
Front panel operation
To perform a scan, first program the controlling aspects
of the scan (see Table 2), and then press STEP to take the
Model 7001 out of the idle state (ARM indicator on).
Regardless of how the scan is configured, the STEP key
is always active allowing you to manually step through
the scan.
8
The scan can be terminated at any time by pressing the
OPEN ALL key. All closed channels will open and the
Model 7001 will return to the idle state (ARM indicator
off).
IEEE-488 operation
Over the bus, a scan is configured using the :TRIGger
subsystem commands.
Send the following command to take the Model 7001
out of the idle state and begin a scan:
:INITiate
The scan can be terminated by sending the following
command:
:ABORt
All closed channels will open and the Model 7001 will
return to the idle state.
Store and Recall
Up to 100 channel patterns can be stored in memory. A
channel pattern is simply a displayed pattern of open
and closed channels.
Front panel operation
1. Close the desired channels.
2. Press STORE and enter the desired memory loca-
tion (1 to 100).
3. Press ENTER.
9
To recall a channel pattern from memory:
1. Press RECALL and enter the memory location of the
stored channel pattern.
2. Press ENTER. The channel status display will imme-
diately update to reflect the recalled channel pat-
tern.
Another way to recall a channel pattern is to include a
memory location (e.g. M36) in a Channel List and/or
Scan List. In a Channel List, when CLOSE is pressed, the
closed channels in the specified channel pattern will
close, and when OPEN is pressed, the channels will
open. In a Scan List, when the memory location is
scanned, the channel status display will update to
reflect the specified channel pattern. The closed chan-
nels in the channel pattern will remain closed unless a
different channel pattern is scanned.
IEEE-488 bus operation
Over the IEEE-488 bus, the :SAVe and :RECall com-
mands are used to save (store) and recall channel pat-
terns. The following examples demonstrate proper
format:
:MEMory:SAVe M36
:MEMory:RECall M36
As in front panel operation, a memory location can be
included in the Channel List and/or Scan List.
10
Menu Structures
The desired menu is displayed by pressing the appropri-
ate key; MENU, SCAN CONFIGURATION or CARD
CONFIGURATION. Once in a menu structure, place
the cursor ( and keys) on the desired selection and
press ENTER. Use the keypad to enter parameters. Use
the EXIT key to back out of the menu structure and dis-
able the menu.
Table 1: MAIN MENU structure
Menu item Description
SAVESETUP Setup Menu:
SAVE Save setup at a memory location
(up to 10).
RESTORE Return 7001 to setup stored at a
memory location.
PWRON Power-on Menu:
FACTORY DEFAULT Power-on to factory default
setup conditions.
USER SETUP Power-on to setup stored at a
memory location.
RESET Return 7001 to original power
on setup.
GPIB GPIB Setup Menu:
ADDRESS Check/change IEEE-488 address.
STATUS Display IEEE-488 status byte.
DIGITAL-I/O Digital I/O Menu:
OUTPUT-STATUS Check/change states of digital
output channels.
OUTPUT-POLARITY Check/change polarity of digital
output port.
INPUT-STATUS Read digital input channel.
11
Table 1: MAIN MENU structure (Cont.)
Menu item Description
TEST Self-Test Menu:
BUILT-IN TESTS Test Digital Board:
AUTO Run all tests automatically
MANUAL Select tests to run
DISPLAY TESTS Test Display Board:
KEYS Verify operation of front panel
keys
PATTERNS Verify operation of display
LANGUAGE Choose Language:
ENGLISH Display messages in English.
GERMAN Display messages in German.
FRENCH Display messages in French.
GENERAL General Menu:
SERIAL # Displays serial number, SCPI ver-
sion, and software revision.
STATUS-MESSAGES Enables/disables status message
mode.
Table 2: CONFIGURE SCAN menu structure
Menu item Description
CHAN-CONTROL Configure Channel Layer:
CHANNEL-SPACING Select channel spacing:
TIMER Use a timer to select each chan-
nel in the scan.
EXTERNAL Use an external trigger to select
each channel.
GPIB Use a bus trigger to select each
channel.
MANUAL Use STEP key to select each
channel.
TRIGLINK Use a Trigger Link trigger to
select each channel.
12
Table 2: CONFIGURE SCAN menu structure (Cont.)
Menu item Description
ASYNCHRONOUS Use separate lines for In/Out
triggers.
SEMI-SYNCHRONOUS Use same line for In/Out trig-
gers.
IMMEDIATE Use to scan channels immedi-
ately.
HOLD Use to hold up the scan in the
channel layer.
NUMBER-OF-CHANS Define number of channels to
scan:
USE-SCANLIST-LENGTH Count = number of channel
entries in scan list.
CHAN-COUNT User defined count:
INFINITE Repeat channel scanning
indefinitely.
ENTER-CHAN-COUNT Count = user defined value (1
to 9999)
CONTROL Select trigger control mode:
SOURCE Enable the Source Bypass.
ACCEPTOR Disable the Source Bypass.
SCAN-CONTROL Configure Scan Layer:
SCAN-SPACING Select scan spacing:
TIMER Use the timer to control scan
spacing.
EXTERNAL Use external triggers to control
scan spacing.
GPIB Use bus triggers to control scan
spacing.
MANUAL Use STEP key to control scan
spacing.
TRIGLINK Use Trigger Link triggers to con-
trol scan spacing.
IMMEDIATE Use to pass operation immedi-
ately into the channel layer.
HOLD Use to hold up the scan in the
scan layer.
NUMBER-OF-SCANS Define number of scans to be per-
formed:
INFINITE Repeat scan indefinitely.
ENTER-SCAN-COUNT Count = user defined value (1 to
9999).
13
Table 2: CONFIGURE SCAN menu structure (Cont.)
Menu item Description
CONTROL Select trigger control mode:
SOURCE Enable Source Bypass.
ACCEPTOR Disable Source Bypass.
ARM-CONTROL Configure Arm Layer:
ARM SPACING Select arm spacing control:
MANUAL Use STEP key to arm scanner.
IMMEDIATE Use to arm scanner immediately.
GPIB Use a bus trigger to arm scanner.
EXTERNAL Use an external trigger to arm
scanner.
TRIGLINK Use a Trigger Link trigger to arm
scanner.
HOLD Use to hold up the scan in the
arm layer.
ARM-COUNT Define number of times to arm
scanner:
INFINITE Continuously re-arm scanner.
ENTER-ARM-COUNT User defined count value (1 to
9999).
TRIGGER-CONTROL Select trigger control mode:
SOURCE Enable Source Bypass.
ACCEPTOR Disable Source Bypass.
CHAN-RESTRICTIONS Define channel restrictions:
SINGLE-CHAN Enable/disable Single Channel
Mode.
RESTRICTED-CHANNELS Specify channels that cannot be
closed.
14
Table 3: CARD CONFIG MENU structure
Menu item Description
TYPE Set Card Type:
SLOT-1 Assign model number to card in slot 1.
SLOT-2 Assign model number to card in slot 2.
#-OF-POLES Select # Of Poles:
SLOT-1 Select pole mode for card in slot 1.
SLOT-2 Select pole mode for card in slot 2.
CARD-PAIR Enable or disable Card Pair.
DELAY Set Delay For:
SLOT-1 Set delay for card in slot 1.
SLOT-2 Set delay for card in slot 2.
READ-I/O-CARD Identify I/O Cards.
15
Default Conditions
Table 4: Factory default and RESET
Item Factory default RESET
Channel status All open All open
Channel list Cleared No change
Scan list Cleared No change
GPIB address 7 No change
Digital I/O output High High
level
Language English No change
Status messages Off Off
# of poles 2-pole (both slots) No change
Card pair Off Off
Delay 0 sec 0 sec
Channel spacing Manual (STEP key) Manual (STEP key)
Number of channels Scan list length Scan list length
Channel trigger con- Source Source
trol
Scan spacing Immediate Immediate
Number of scans Infinite Infinite
Scan trigger control Acceptor Acceptor
Arm spacing Immediate Immediate
Arm count 1 1
Arm trigger control Acceptor Acceptor
Single channel Off Off
Restricted channels None No change
Note: "No change" indicates that RESET does not affect the currently set condi-
tion.
16
Table 5: *RST and :SYSTem:PRESet
:SYSTem:PRESet
Command name *RST value value
:INITiate
:CONTinuous OFF OFF
:ARM
:SEQuence[1]
:LAYer[1]
:COUNt 1 1
:SOURce IMMediate IMMediate
:TCONfigure
:DIRection ACCeptor ACCeptor
:ASYNchronous
:ILINe 1 1
:OLINe 2 2
:LAYer2
:COUNt 1 INFinite
:DELay 0 0
:SOURce IMMediate IMMediate
:TIMer 0.001 0.001
:TCONfigure
:DIRection ACCeptor ACCeptor
:ASYNchronous
:ILINe 1 1
:OLINe 2 2
:TRIGger
:SEQuence1
:COUNt 1 Scan list length
:AUTO OFF ON
:DELay 0 0
:SOURce IMMediate MANual
:TIMer 0.001 0.001
:TCONfigure
:PROTocol ASYNchronous ASYNchronous
:DIRection ACCeptor SOURce
:ASYNchronous
:ILINe 1 1
:OLINe 2 2
:SSYNchronous
:LINE 1 1
17
Table 5: *RST and :SYSTem:PRESet (Cont.)
:SYSTem:PRESet
Command name *RST value value
[:ROUTe]
:CONFigure
:SLOT[1]
:STIMe 0 0
:SLOT2
:STIMe 0 0
:CPAir OFF OFF
:SCHannel OFF OFF
:DISPlay
:SMESsage OFF OFF
18
Error and Status Messages
Table 6: Error and status messages
Code number Description
+522 "Slot 2 identification error" (EE)
+521 "Slot1 identification error" (EE)
+510 "Saved state error" (EE)
+173 "Waiting in arm layer 2" (SE)
+172 "Waiting in arm layer 1" (SE)
+171 "Waiting in trigger Layer" (SE)
+161 "Program running" (SE)
+101 "Operation Complete" (SE)
0 "No error" (SE)
-100 "Command Error" (EE)
-101 "Invalid Character" (EE)
-102 "Syntax Error" (EE)
-103 "Invalid Separator" (EE)
-104 "Data Type Error" (EE)
-105 "GET not allowed" (EE)
-108 "Parameter not allowed" (EE)
-109 "Missing Parameter" (EE)
-110 "Command Header Error" (EE)
-111 "Command Header Separator Error" (EE)
-112 "Program mnemonic too long" (EE)
-113 "Undefined header" (EE)
-114 "Header suffix out of range" (EE)
-120 "Numeric data error" (EE)
-121 "Invalid character in number" (EE)
-123 "Exponent too large" (EE)
-124 "Too many digits in number" (EE)
-128 "Numeric data not allowed" (EE)
EE = Error event
SE = Status event
19
Table 6: Error and status messages (Cont.)
Code number Description
-140 "Character data error" (EE)
-141 "Invalid character data" (EE)
-144 "Character data too long" (EE)
-148 "Character data not allowed" (EE)
-150 "String data error" (EE)
-151 "Invalid string data" (EE)
-154 "String too long"
-158 "String data not allowed" (EE)
-160 "Block data error" (EE)
-161 "Invalid block data" (EE)
-168 "Block data not allowed" (EE)
-170 "Expression error" (EE)
-171 "Invalid expression" (EE)
-178 "Expression data not allowed" (EE)
-200 "Execution error" (EE)
-201 "Invalid while in local" (EE)
-202 "Settings lost due to rtl" (EE)
-210 "Trigger error" (EE)
-211 "Trigger ignored" (EE)
-212 "Arm ignored" (EE)
-213 "Init ignored" (EE)
-214 "Trigger deadlock" (EE)
-215 "Arm deadlock" (EE)
-220 "Parameter Error" (EE)
-221 "Settings conflict" (EE)
-222 "Parameter data out of range" (EE)
-223 "Too much data" (EE)
-224 "Illegal parameter value" (EE)
-241 "Hardware missing" (EE)
-260 "Expression Error" (EE)
-330 "Self Test failed" (EE)
EE = Error event
SE = Status event
20
Table 6: Error and status messages (Cont.)
Code number Description
-350 "Queue overflow" (EE)
-410 "Query interrupted" (EE)
-420 "Query unterminated" (EE)
-430 "Query deadlocked" (EE)
-440 "Query unterminated after indefinite
response" (EE)
EE = Error event
SE = Status event
21
PON = Power On
URQ = User Request * ESR ? PON URQ CME EXE DDE QYE OPC Standard Event
CME = Command Error (B15-B8) (B7) (B6) (B5) (B4) (B3) (B2) (B1) (B0) Status Register
EXE = Execution Error
DDE = Device - Dependent Error
QYE = Query Error
OPC = Operation Complete
&
&
&
OR &
&
22
To Event Summary &
Figure 1: Standard event status
Bit (ESB) of &
Status Bite
Register (See
Figure 3).
* ESE Standard Event
PON URQ CME EXE DDE QYE OPC Status Enable
* ESE ? (B15-B8) (B7) (B6) (B5) (B4) (B3) (B2) (B1) (B0) Register
& = Logical AND
OR = Logical OR
(1) (2)
Operation Event
Idle Arm Trig Set Condition Register
(B15 - B11) (B10) (B9) (B8) (B7) (B6) (B5) (B4) (B3) (B2) (B1) (B0)
Idle Arm Trig Set PTR Transition
NTR Filter
(B15 - B11) (B10) (B9) (B8) (B7) (B6) (B5) (B4) (B3) (B2) (B1) (B0)
Operation Event
Idle Arm Trig Set Status Register
(B15 - B11) (B10) (B9) (B8) (B7) (B6) (B5) (B4) (B3) (B2) (B1) (B0)
23
&
&
Figure 2: Operation event status
OR &
&
To Operation
Summary Bit
(OSB) of Status Operation Event
Byte Register. Status Enable
(See Figure 5-11). Idle Arm Trig Set
(B15 - B11) (B10) (B9) (B8) (B7) (B6) (B5) (B4) (B3) (B2) (B1) (B0) Register
Idle = Idle & = Logical AND PTR = Positive Transition Filter
Arm = Waiting for Arm OR = Logical OR NTR = Negative Transition Filter
Trig = Waiting for Trigger
Set = Settling
(1) From Trigger Event Register set (see Figure 5-5 in 7001 Instruction Manual).
(2) From Arm Event Register set (see Figure 5-5 in 7001 Instruction Manual).
Status Summary Messages
0
* STB ? MSS Status Byte
OSB RQS ESB MAV QSB EAV Register
Serial Poll (B15 - B8) (B7) (B6) (B5) (B4) (B3) (B2) (B1) (B0)
0
&
&
OR &
24
&
&
* SRE Service Request
OSB ESB MAV QSB EAV Enable Register
* SRE ? (B15 - B8) (B7) (B6) (B5) (B4) (B3) (B2) (B1) (B0)
OSB = Operation Summary Bit & = Logical AND
MSS = Master Summary Status (IEEE-488.2) OR = Logical OR
Figure 3: Status byte and service request (SRQ)
RQS = Request for Service (IEEE-488.1)
ESB = Event Summary Bit
MAV = Message Available
QSB = Questionable Summary Bit
EAV = Error Available
IEEE-488.2 Common
Commands and Queries
Table 7: IEEE-488.2 common commands and queries
Mnemonic Name Description
*CLS Clear status Clears all event registers, and
Error Queue.
*ESE Event status Read Standard Event Status.
enable command
*ESE? Event status enable Read Standard Event Status
query Register.
*ESR? Event status Read Standard Event Status
register query Register.
*IDN? Identification Read ID information.
query
*OPC Operation com- Sets OPC bit in the Standard
plete command Event Status Register after all
pending commands have
been executed.
*OPC? Operation com- Places an ASCII "1" into the
plete query output queue when all pend-
ing commands have been
completed.
*OPT? Option identifica- Read model number for each
tion query slot.
*RCL Recall command Returns the 7001 to the setup
stored in the designated
memory location (0 to 9).
*RST Reset command Returns the 7001 to the *RST
default conditions.
25
Table 7: IEEE-488.2 common commands and queries
(Cont.)
Mnemonic Name Description
*SAV Save command Saves the current setup to the
designated memory location
(0 to 9).
*SRE Service request Programs Service Request
enable command Enable Register.
*SRE? Service request Read Service Request Enable
enable query Register.
*STB? Read status byte Read Status Byte Register.
query
*TRG Trigger command Issues a bus trigger.
*TST? Self-test query Performs a checksum test on
ROM.
*WAI Wait-to-continue Wait until all previous com-
command mands are executed.
26
SCPI Command Subsystems
Table 8: DISPlay command summary
Command Description
:DISPlay
[ :WINDow[1]] Path to locate message to top portion of
display
:TEXT Path to control user text messages:
:DATA Define ASCII message "a" (up to 20
characters).
:STATe Enable (1 or ON) or disable (0 or
OFF) message.
:STATe? Read state.
:WINDow2 Path to locate message to bottom portion
of display:
:TEXT Path to control user text messages:
:DATA Define ASCII message "a" (up to 32
characters).
:STATe Enable (1 or ON) or disable (0 or
OFF) message.
:STATe? Read state.
:SMESsage Enable (1 or ON) or disable (0 or OFF)
status messages.
:SMESsage? Read state of status message display.
Table 9: OUTPut command summary
Command Description
:OUTPut
:TTLn Path and command to specify output
line "n" (1-4):
:LSENse AHIGh| Set polarity; active high (AHIG) or
ALOW active low (ALOW).
:LSENse? Read polarity.
27
Table 10: ROUTe command summary
Command Description
[:ROUTe]
:CLOSe Close specified channels:
:STATe? Read closed channels.
:CLOSe? Read state of specified channels
(1=closed, 0=open).
:OPEN |ALL Open specified (or all) channels.
:OPEN? Read state of specified channels
(1=open, 0=closed).
:SCAN Specify scan list:
:POINts? Read number of channels in
scan list.
:SCAN? Read scan list.
:FCHannels Specifies channels that cannot
be closed (forbidden).
:FCHannels? Read forbidden channels.
:CONFigure: Configuration command path:
:SCHannel Enable (1 or ON) or disable (0
or OFF) Single Channel.
:SCHannel? Read Single Channel mode.
:CPAir Enable (1 or ON) or disable (0
or OFF) Channel Pairing.
:CPAir? Read Channel Pairing.
:SLOT1 Path to configure CARD 1:
:CTYPE Specify card type.
:CTYPE? Read card type.
:POLE Select pole mode (1, 2 or 4).
:POLE? Read pole mode.
:STIMe Set relay settling time (0 to
99999.999 sec).
:STIMe? Read relay settling time.
28
Table 10: ROUTe command summary (Cont.)
Command Description
[:ROUTe]
:CONFigure:
:SLOT2 Path to configure CARD 2:
:CTYPE Specify card type.
:CTYPE? Read card type.
:POLE Select pole mode (1, 2 or 4).
:POLE? Read pole mode.
:STIMe Set relay settling time (0 to
99999.999 sec).
:STIMe? Read relay settling time.
:MEMory Path to program memory:
:SAVE M Saves channel pattern in mem-
ory (1-100).
:RECall M Recalls channel pattern from
memory (1-100).
Table 11: SENSe command summary
Command Description
:SENSe[1]
:TTL1 Command path for input port.
:DATA? Read digital input port.
29
Table 12: SOURce command summary
Command Description
:SOURce Command path to program digital output
port bits:
:TTL1 Path to program Bit 1:
[:LEVel] Set (1 or ON) or reset (0 or off).
[:LEVel]? Read Bit 1.
:TTL2 Path to program Bit 2:
[:LEVel] Set (1 or ON) or reset (0 or off).
[:LEVel]? Read Bit 2.
:TTL3 Path to program Bit 3:
[:LEVel] Set (1 or ON) or reset (0 or off).
[:LEVel]? Read Bit 3.
:TTL4 Path to program Bit 4:
[:LEVel] Set (1 or ON) or reset (0 or off).
[:LEVel]? Read Bit 4.
Table 13: STATus command summary
Command Description
:STATus
:OPERation Path to control operation event
registers:
[:EVENt]? Read status register.
:CONDition? Read condition register.
:PTRansition Program positive transition reg-
ister (0 to 1122).
:PTRansition? Read positive transition register.
:NTRansition Program negative transition reg-
ister (0 to 1122).
:NTRansition? Read negative transition register.
:ENABle Program enable register (0 to
1122).
:ENABle? Read enable register.
:ARM Path to control arm event regis-
ters:
30
Table 13: STATus command summary (Cont.)
Command Description
:STATus
:OPERation
:ARM
[:EVENt]? Read status register.
:CONDition? Read condition register.
:PTRansition Program positive transition
register (0 or 2).
:PTRansition? Read positive transition regis-
ter.
:NTRansition Program negative transition
register (0 or 2).
:NTRansition? Read negative transition regis-
ter.
:ENABle Program enable register (0 or
2).
:ENABle? Read enable register.
:SEQuence Path to control the sequence
event registers:
[:EVENt]? Read status register.
:CONDition? Read condition register.
:PTRansition Program positive transition
register (0 to 6).
:PTRansition? Read positive transition reg-
ister.
:NTRansition Program negative transition
register (0 to 6).
:NTRansition? Read negative transition
register.
:ENABle Program enable register (0
to 6).
:ENABle? Read enable register.
:TRIGger Path to control trigger event
registers:
[:EVENt]? Read status register.
:CONDition? Read condition register.
:PTRansition Program positive transition
register (0 or 2).
:PTRansition? Read positive transition reg-
ister.
31
Table 13: STATus command summary (Cont.)
Command Description
:STATus
:OPERation
:ARM
:TRIGger
:NTRansition Program negative transition
register (0 or 2).
:NTRansition? Read negative transition
register.
:ENABle Program enable register (0
or 2).
:ENABle? Read enable register.
:PRESet Return status registers to default
states.
:QUEue Path to access error queue:
[:NEXT]? Read most recent error message.
:ENABle Specify error and status mes-
sages for queue.
Table 14: SYSTem command summary
Command Description
:SYSTem
:ERRor? Read Error/Status Queue.
:POSetup RST| Select Power-on setup.
PRESet|SAV0|
SAV1|SAV2|SAV3|
SAV4|SAV5|SAV6|
SAV7|SAV8|SAV9
:POSetup? Read power-on setup.
:PRESet Return instrument to default condi-
tions.
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Table 14: SYSTem command summary
Command Description
:VERSion? Read revision level of the SCPI Stan-
dard.
Table 15: Trigger command summary
Command Description
:INITiate Initiate one trigger (scan)
[:IMMediate] cycle.
Enable (1 or ON) or disable (0
:CONTinuous or OFF) continuous initia-
tion.
:ABORt Reset trigger system and go to
idle state.
33
Table 15: Trigger command summary (Cont.)
Command Description
:ARM[:SEQuence[1]] Subsystem command path to
configure scan:
[:LAYer[1]] Path to program Arm Layer 1
(arm layer) of scan:
:IMMediate Loop around control source.
:COUNt | Program number of arms (1
INFinite to 9999, or INFinite).
:COUNt? Read arm count.
:SOURce HOLD| Select Arm Layer 1 control
IMMediate| source.
MANual|BUS|
TLINk|EXTernal
:SOURce? Read source.
:SIGNal Loop around control source.
:TCONfigure Path to configure Triggers.
:DIRection Enable (SOUR) or disable
SOURce | (ACC) Bypass.
ACCeptor
:DIRection? Read direction.
:ASYNchronous Path to configure asyn-
chronous Trigger Link:
:ILINe Select input line (1 to 6).
:ILINe? Read input line.
:OLINe Select output line (1 to
6).
:OLINe? Read output line.
34
Table 15: Trigger command summary (Cont.)
Command Description
:ARM[:SEQuence[1]]
:LAYer2 Path to program Arm Layer 2
(scan layer) of scan:
:IMMediate Loop around control source.
:COUNt | Program number of scans (1
INFinite to 9999, or INFinite).
:COUNt? Read scan count.
:DELay Program delay (0 to
99999.999 sec)
:DELay? Read delay.
:SOURce HOLD| Select Arm Layer 2 control
IMMediate| source.
MANual|BUS|
TLINk|EXTernal
|TIMer
:SOURce? Read source.
:SIGNal Bypass scan control source
one time only.
:TIMer Set timer interval (0 to
99999.999 sec).
:TIMer? Read timer interval.
:TCONfigure Path to configure Triggers:
:DIRection Enable (SOUR) or disable
SOURce| (ACC) Bypass.
ACCeptor
:DIRection? Read direction.
:ASYNchronous Path to configure asyn-
chronous mode:
:ILINe Select input line (1 to 6).
:ILINe? Read input line.
:OLINe Select output line (1 to
6).
:OLINe? Read output line.
35
Table 15: Trigger command summary (Cont.)
Command Description
:TRIGger Path to program Trigger Layer
(channel layer) of scan:
:IMMediate Scan channels immediately.
(Loop around control
source.)
:COUNt | Program number of channels
INFinite (1 to 9999, or INFinite).
:AUTO ON|OFF Enable (on) to use scan-
list-length.
:COUNt? Read channel count.
:DELay Program delay (0 to
99999.999 sec)
:DELay? Read delay period.
:SOURce HOLD| Select Trigger Layer Control
IMMediate| Source.
MANual|BUS|
TLINk|EXTernal|
TIMer
:SOURce? Read source.
:SIGNal Bypass channel control
source one time only.
:TIMer Set timer interval (0 to
99999.999 sec).
:TIMer? Read timer interval.
:TCONfigure Path to configure Triggers:
:PROTocol Select protocol (asynchro-
ASYNchronous| nous or semi-synchro-
SSYNchronous nous Trigger Link.)
:PROTocol? Read protocol.
:DIRection Enable (SOUR) or disable
SOURce| (ACC) Bypass.
ACCeptor Read direction.
:DIRection? Path to configure asynchro-
:ASYNchronous nous Trigger Link mode:
:ILINe Select input line (1 to 6).
:ILINe? Read input line.
36
Table 15: Trigger command summary (Cont.)
Command Description
:TRIGger
:TCONFigure
:ASYNchronous
:OLINe Select output line (1 to 6).
:OLINe? Read output line.
:SSYNchronous Path to configure semi-
synchronous Trigger Link
mode:
:LINE Select trigger line (1 to 6).
:LINE? Read trigger line.
37
38
Specifications are subject to change without notice.
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Instruments, Inc. All other trademarks and trade names are the
property of their respective companies.
Keithley Instruments, Inc.
28775 Aurora Road