IET Labs 1689-9640 Troubleshooting guide

♦ PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT ♦
TEL: [phone] • [phone] • FAX: [phone]
www.ietlabs.com
Long Island, NY • Email: [email protected]
IET LABS, INC.
Copyright © 2011 IET Labs, Inc.
Visit www.ietlabs.com for manual revision updates
Digibridge IEEE-488.2 im/March 2011
1689-9640
Digibridge IEEE-488.2 Boards
User and Service Manual

♦ PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT ♦
TEL: [phone] • [phone] • FAX: [phone]
www.ietlabs.com
Long Island, NY • Email: [email protected]
IET LABS, INC.

♦ PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT ♦
TEL: [phone] • [phone] • FAX: [phone]
www.ietlabs.com
534 Main Street, Westbury, NY 11590
IET LABS, INC.
WARRANTY
We warrant that this product is free from defects in material and workmanship and, when properly used,
will perform in accordance with applicable IET specifi cations. If within one year after original shipment,
it is found not to meet this standard, it will be repaired or, at the option of IET, replaced at no charge when
returned to IET. Changes in this product not approved by IET or application of voltages or currents greater
than those allowed by the specifi cations shall void this warranty. IET shall not be liable for any indirect,
special, or consequential damages, even if notice has been given to the possibility of such damages.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR
FITNESS FOR ANY PARTICULAR PURPOSE.

WARNING
OBSERVE ALL SAFETY RULES
WHEN WORKING WITH HIGH VOLTAGES OR LINE VOLTAGES.
Dangerous voltages may be present inside this instrument. Do not open the case
Refer servicing to qualifi ed personnel
HIGH VOLTAGES MAY BE PRESENT AT THE TERMINALS OF THIS INSTRUMENT
WHENEVER HAZARDOUS VOLTAGES (> 45 V) ARE USED, TAKE ALL MEASURES TO
AVOID ACCIDENTAL CONTACT WITH ANY LIVE COMPONENTS.
USE MAXIMUM INSULATION AND MINIMIZE THE USE OF BARE
CONDUCTORS WHEN USING THIS INSTRUMENT.
Use extreme caution when working with bare conductors or bus bars.
WHEN WORKING WITH HIGH VOLTAGES, POST WARNING SIGNS AND
KEEP UNREQUIRED PERSONNEL SAFELY AWAY.
CAUTION
DO NOT APPLY ANY VOLTAGES OR CURRENTS TO THE TERMINALS OF THIS
INSTRUMENT IN EXCESS OF THE MAXIMUM LIMITS INDICATED ON
THE FRONT PANEL OR THE OPERATING GUIDE LABEL.

1689-9640
TOC Page i
Contents
Overview......................................................................................................................................... 1
Configuration .................................................................................................................................. 1
Talk-Listen / Talk-Only Toggle Switch.......................................................................................... 1
GPIB Address DIP Switch.............................................................................................................. 2
Jumpers ........................................................................................................................................... 3
RS-232 Serial Interface................................................................................................................... 3
Legacy Digibridge IEEE-488 Commands ...................................................................................... 4
IEEE 488.2 / SCPI Digibridge Command Summary...................................................................... 7
IEEE 488.2 / SCPI Digibridge Command Reference ................................................................... 12
:CONFigure:PARameter ....................................................................................................... 12
:CONFigure:CIRCuit ............................................................................................................ 12
:CONFigure:APERture ......................................................................................................... 13
:CONFigure:MODe............................................................................................................... 13
:CONFigure:DISPlay ............................................................................................................ 13
:CONFigure:DISPlay:RATio ................................................................................................ 14
:CONFigure:DISPLay:BINRatio .......................................................................................... 14
:CONFigure:FUNCtion ......................................................................................................... 14
:CONFigure:RANGe............................................................................................................. 14
:CONFigure:DELay .............................................................................................................. 15
:CONFigure:ITFactor............................................................................................................ 15
:CONFigure:AVERage ......................................................................................................... 15
:CONFigure:FREQuency ...................................................................................................... 16
:CONFigure:VOLTage:CONStant........................................................................................ 16
:CONFigure:VOLTage:LEVel .............................................................................................. 16
:CONFigure:CURRent .......................................................................................................... 17
:CONFigure:BIAS................................................................................................................. 17
:CONFigure:ROUTine .......................................................................................................... 17
:CONFigure:NOMinal........................................................................................................... 18
:CONFigure:BLANking........................................................................................................ 18
:CONFigure:BIN:NUM......................................................................................................... 18
:CONFigure:BIN:HIGH........................................................................................................ 19
:CONFigure:BIN:LOW......................................................................................................... 19
:CONFigure:BINSummary ................................................................................................... 19
:CONFigure:OUTPut ............................................................................................................ 19
:CONFigure:DATaformat ..................................................................................................... 20
:SYSTem:SWITch................................................................................................................. 20

1689-9640
Page ii TOC
:SYSTem:KEYPad................................................................................................................ 20
:SYSTem:RESet.................................................................................................................... 21
:SYSTem:RESTart ................................................................................................................ 21
:SYSTem:CALibration.......................................................................................................... 21
:SYSTem:COMMunicate:GPIB:ADDRess?......................................................................... 22
:SYSTem:COMMunicate:GPIB:CONFigure........................................................................ 22
:SYSTem:COMMunicate:SERial:CONFigure ..................................................................... 22
:SYSTem:COMMunicate:SERial:BAUDrate ....................................................................... 23
:SYSTem:COMMunicate:SERial:PARity ............................................................................ 23
:SYSTem:COMMunicate:SERial:STOPbits......................................................................... 23
:SYSTem:COMMunicate:SERial:HANDshake.................................................................... 24
:SYSTem:ERRor[:NEXT]?................................................................................................... 24
:SYSTem:VERSion? ............................................................................................................. 24
:STATus:OPERation[:EVENt]?............................................................................................ 24
:STATus:OPERation:CONDition? ....................................................................................... 25
:STATus:OPERation:ENABle .............................................................................................. 25
:STATus:QUEStionable[:EVENt]?....................................................................................... 25
:STATus:QUEStionable:CONDition? .................................................................................. 25
:STATus:QUEStionable:ENABle ......................................................................................... 26
:STATus:PRESet................................................................................................................... 26
:MEASure.............................................................................................................................. 26
*CLS...................................................................................................................................... 26
*ESE...................................................................................................................................... 27
*ESR?.................................................................................................................................... 27
*IDN? .................................................................................................................................... 27
*OPC ..................................................................................................................................... 27
*OPC? ................................................................................................................................... 28
*RST...................................................................................................................................... 28
*SRE...................................................................................................................................... 28
*STB?.................................................................................................................................... 28
*TST? .................................................................................................................................... 29
*WAI ..................................................................................................................................... 29

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Digibridge IEEE-488.2 Board Page 1
Overview
The optional Digibridge IEEE-488.2 interface board provides IEEE-488.2 (GPIB) and RS-232
Serial interfaces to the Digibridge 1689/1693 series instruments via 24-pin GPIB and 9-pin male
serial connectors. The interface can be used to connect directly to a controller or to a bus
comprising of multiple instruments and a controller. All instruments on the IEEE-488.2 bus must
meet the IEEE Standard 488.2-1987 (Standard Digital Interface for Programmable
Instrumentation).
The IEEE-488 interface board supports the IEEE-488.2 and SCPI interface standard and
communication protocol. The physical, electrical, signal and protocol standards of the
IEEE-488.1-1987, IEEE-488.2-1987 and SCPI-1999 standards are supported.
The following IEEE-488 functions are implemented:
AH1 Acceptor Handshake (Listener)
SH1 Source Handshake (Talker)
T5 Talker with normal and talk-only modes (for systems without a controller), switch
selectable on the rear panel.
L4 Listener.
SR1 Service Request (to request service when measurement is complete and the instrument is
not addressed to talk).
RL2 Remote/Local (no local lockout, no return-to-local switch).
PP0 No Parallel Poll.
DC1 Device Clear.
DT1 Device Trigger (to start measurement).
C0 No controller functions.
E2 Electrical Interface.
Configuration
The Digibridge IEEE-488.2 interface board has two switches for setting operating configuration,
SW1, the Talk-Listen / Talk-Only toggle switch, and S2, the GPIB Address selection DIP switch.
Talk-Listen / Talk-Only Toggle Switch
The SW1 red toggle switch is used to select between the Talk-Listen and the Talk-Only
operating modes. If no controller (or PC) will be used to control the Digibridge via either the
IEEE-488 or RS-232 interfaces, then the SW1 toggle switch should be set to Talk-Only. For
controlling the Digibridge externally via either interface, the SW1 toggle switch should be set to
Talk-Listen.

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Page 2 Digibridge IEEE-488.2 Board
GPIB Address DIP Switch
The GPIB Address of the Digibridge is set by the SW2 DIP Switch. The numeric value is set by
setting the switch on or off for the corresponding bit with the OFF position for binary 1 and ON
position for binary 0. Depress the rocker toward the OFF marking for OFF and toward the
numeric marking for the corresponding ON position.
SW2 DIP switch setting for selecting Digibridge GPIB address:
GPIB Address
5
4
3
2
1
0 ON ON ON ON ON
1 ON ON ON ON OFF
2 ON ON ON OFF ON
3
ON
ON
ON
OFF
OFF
4 ON ON OFF ON ON
5 ON ON OFF ON OFF
6 ON ON OFF OFF ON
7 ON ON OFF OFF OFF
8 ON OFF ON ON ON
9 ON OFF ON ON OFF
10 ON OFF ON OFF ON
11 ON OFF ON OFF OFF
12 ON OFF OFF ON ON
13 ON OFF OFF ON OFF
14 ON OFF OFF OFF ON
15 ON OFF OFF OFF OFF
16 OFF ON ON ON ON
17 OFF ON ON ON OFF
18 OFF ON ON OFF ON
19 OFF ON ON OFF OFF
20 OFF ON OFF ON ON
21 OFF ON OFF ON OFF
22 OFF ON OFF OFF ON
23 OFF ON OFF OFF OFF
24 OFF OFF ON ON ON
25 OFF OFF ON ON OFF
26 OFF OFF ON OFF ON
27 OFF OFF ON OFF OFF
28 OFF OFF OFF ON ON
29 OFF OFF OFF ON OFF
30 OFF OFF OFF OFF ON
31 OFF OFF OFF OFF OFF
GPIB Address 31 is not a valid GPIB Address and setting the SW2 DIP switch to this setting (all
switches in the OFF position) will disable the GPIB interface, with all communication possible
only via the RS-232 serial interface.
By convention, GPIB Address 0 is normally used by the controller.

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Digibridge IEEE-488.2 Board Page 3
Jumpers
The Digibridge IEEE-488.2 interface board has three jumpers, JP1, JP2, and JP3. For normal
operation, all three jumpers should be open (no shorting blocks inserted).
JP1 enables the RS-232 interface driver auto power off.
JP2 forces firmware update mode via RS-232 serial interface. If JP2 is set, the board will be
forced to await firmware update and the Digibridge will be held in reset state.
JP3 enables flash write protect. If JP3 is set, certain onboard flash will be prevented from being
updated. Since multiple safeguards are in place to prevent unintentional flash overwriting, the
use of JP3 is not needed.
All other headers, populated and non-populated, are intended only for manufacturing test or
future use. Do insert connectors or shorting blocks into these headers as the board may
malfunction or permanent damage may result.
RS-232 Serial Interface
The RS-232 Serial Interface implements a standard 9 wire DTE serial interface requiring the use
of a standard 9-pin Female-to-Female Null Modem cable for connection to a PC. In normal use,
either the IEEE-488 interface or the RS-232 interface is used. Using both interfaces at the same
time is possible, but will degrade overall communication speed and can lead to communication
conflicts.

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Page 4 Digibridge IEEE-488.2 Board
Legacy Digibridge IEEE-488 Commands
The legacy IEEE-488.1 Digibridge commands are supported by the IEEE-488 interface board for compatibility with
software and drivers written for the original Digibridge IEEE-488.1 interface boards.
Category
Description
Type
Code
Display Bin # 2 byte D0
Delta % 2 byte D1
Value
2 byte D2
Delta RLC 2 byte D3
Ratio: nominal value / RLC value 2 byte D4
Ratio: RLC value / nominal value 2 byte D5
Bin on ratio: nominal value / RLC value 2 byte D6
Bin on ratio: RLC value / nominal value 2 byte D7
Measurement Rate Fast 2 byte S0
Medium 2 byte S1
Slow
2 byte S2
Measurement Voltage Constant, off 2 byte Y0
Constant, on 2 byte Y1
Value (in volts) ═v Floating point Vv;
Function Measure 2 byte P0
Enter 2 byte P1
Reset Turn-On Conditions 2 byte P2
Diagnostics 2 byte P3
Measurement Mode Triggered 2 byte T0
Continuous 2 byte T1
Triggered median value 2 byte T2
Continuous median value 2 byte T3
Parameter Inductance (L/Q) 2 byte M0
Capacitance (C/D) 2 byte M1
Capacitance (C/R) 2 byte M2
Resistance (R/Q) 2 byte M3
Inductance (L/Q) ppm 2 byte M4
Capacitance (C/D) ppm 2 byte M5
Capacitance (C/R) ppm 2 byte M6
Resistance (R/Q) ppm 2 byte M7
Automatic selection of R/Q, C/D,
or
L/Q
2 byte M8
Resistance (R/X) 2 byte K2
Conductance (G/B) 2 byte K3
Impedance (Z/ANG) 2 byte K4
Admittance (Y/ANG) 2 byte K5
Impedance (Z/ANG) ppm 2 byte K6
Admittance (Y/ANG) ppm 2 byte K7
Equivalent Circuit Parallel 2 byte C0
Series
2 byte C1

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Digibridge IEEE-488.2 Board Page 5
Range Control Hold range 2 byte R0
Hold range 1 2 byte R1
Hold range 2 2 byte R2
Hold range 3 2 byte R3
Hold range 4 2 byte R4
Autorange
2 byte R5
Frequency Value (in kHz) ═f Floating point Ff;
Zero Calibration Disable 2 byte Z0
Enable open 2 byte Z1
Enable short 2 byte Z2
Output Format Normal (not compacted) 2 byte x0 *
Compacted binary format 2 byte x1 *
Data Output None 2 byte X0
Bin # 2 byte X1
QDR 2 byte X2
QDR, Bin # 2 byte X3
RLC 2 byte X4
RLC, Bin # 2 byte X5
RLC, QDR 2 byte X6
RLC, QDR, Bin # 2 byte X7
RLC, QDR, Bin # on FAIL only 2 byte X8
Same on FAIL; Bin # on PASS 2 byte X9
Nominal Value Value (in ohms, henries, farads) ═n Floating point Nn;
Limit Entry Bin # 3 byte Bbb
High limit (in %) ═h Floating point Hh;
Low limit (in %) ═l Floating point Ll;
Initiation Start a measurement (like start switch) 2 byte G0
Manual Start Enable switch 2 byte W0
Disable switch 2 byte W1
Keyboard Lock Unlock 2 byte K0
Lock 2 byte K1
Average # of measurements ═a Floating point Aa;
Internal Bias Off 2 byte U0
On 2 byte U1
Bin Summary Disable output 2 byte E0
Enable output 2 byte E1
Reset bin summary to 0 2 byte E2

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Page 6 Digibridge IEEE-488.2 Board
Measurement Routine Normal routine (highest speed) 2 byte Q0
Signal reversal
(use for low frequency hum rejection)
2 byte Q1
Shorting between measurements
(used for reducing transient-recovery time
within measuring circuit, when measuring with
bias; NOT FOR DISCHARGING THE DUT)
2 byte Q2
Signal reversal and shorting between
measurements
2 byte Q3
Quick-acquisition feature 2 byte Q4
Quick-acquisition & shorting 2 byte Q5
Display Digit Blanking Eliminate (a) digits from RLC, (b) digits from
QDR
3 byte Oab
Integration-Time
Multiplying Factor
Value (i) multiplies MEDIUM and FAST
integration times
Floating point Ii;
Delay Value (in ms) ═j Floating point Jj; **
Constant Current Value (in mA) ═# Floating point i#; ***
Notes: Parameters in bold are default power-on or P2 reset settings.
Commands in italic are available only on the Digibridge 1693 model.
* Indicates lower-case character.
** Delay command must be entered after frequency command. (Inverting this sequence will
cause delay to revert to its default value.)
*** Lower-case i.

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Digibridge IEEE-488.2 Board Page 7
IEEE 488.2 / SCPI Digibridge Command Summary
The IEEE-488.2 / SCPI commands are used to communicate with the Digibridge via the IEEE-488 or RS-232 serial
interfaces replacing and/or supplementing the legacy commands.
Co
mmand
Parameter(s)
Description
Legacy
CONFigure:
PARameter
LQ
CD
CR
RQ
LQPPm
CDPPm
CRPPm
RQPPm
AUTo
RX
GB
ZANG
YANG
ZAPPm
YAPPm
Selects the measured parameter
Inductance (L/Q)
Capacitance (C/D)
Capacitance (C/R)
Resistance (R/Q)
Inductance (L/Q) ppm
Capacitance (C/D) ppm
Capacitance (C/R) ppm
Resistance (R/Q) ppm
Automatic selection of R/Q, C/D, or L/Q
Resistance (R/X)
Conductance (G/B)
Impedance (Z/ANG)
Admittance (Y/ANG)
Impedance (Z/ANG) ppm
Admittance (Y/ANG) ppm
M0
M1
M2
M3
M4
M5
M6
M7
M8
K2
K3
K4
K5
K6
K7
CIRCuit
PARallel
SERies
Selects the measured equivalent circuit
Parallel
Series
C0
C1
APERture
FAST
MEDium
SLOW
Measure rate
Fast
Medium
Slow
S0
S1
S2
MODe
TRIGgered
CONTinuous
MTRiggered
MCONtinuous
Sets the measure mode
Triggered
Continuous
Triggered median value
Continuous median value
T0
T1
T2
T3
DISPlay
BIN
DELTa
VALue
DRLC
Results to display on the front panel
Bin #
Delta %
Value
Delta RLC
D0
D1
D2
D3
:RATio
NOMValue
VALNominal
Ratio: nominal value / RLC value
Ratio: RLC value / nominal value
D4
D5
:BINRatio
NOMValue
VALNominal
Bin on ratio: nominal value / RLC value
Bin on ratio: RLC value / nominal value
D6
D7
FUNCtion
MEASure
ENTer
Sets function mode to measure or entry setting
Measure
Enter mode for setting configuration
P0
P1

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Page 8 Digibridge IEEE-488.2 Board
RANGe
HOLD
1
2
3
4
AUTo
Sets the measurement range
Hold range
Hold range 1
Hold range 2
Hold range 3
Hold range 4
Autorange
R0
R1
R2
R3
R4
R5
DELay
<numeric>
Sets the trigger delay time
Real value in ms J<numeric>;
ITFactor
<numeric>
Sets the integration-time multiplying factor
Real value multiplies Medium and Fast
integration times
I<numeric>;
AVERage
<numeric>
Sets the number of measurements to average
# of measurements A<numeric>;
FREQuency
<numeric>
Sets the frequency used for measurement
Real value in kHz F<numeric>;
VOLTage: Sets the measurement signal voltage
CONStant OFF
ON
Constant voltage off
Constant voltage on
Y0
Y1
LEVel <numeric> Real value in volts V<numeric>;
CURRent
<numeric>
Sets constant current
Real value in mA i<numeric>;
BIAS
OFF
ON
Enables or disables DC bias
Off
On
U0
U1
ROUTine
NORMal
REVersal
SHORting
REVShorting
QUICk
QSHorting
Sets the measurement routine
Normal routine (highest speed)
Signal reversal (for low freq hum rejection)
Shorting between measurements
Signal reversal and shorting
Quick-acquisition feature
Quick-acquisition & shorting
Q0
Q1
Q2
Q3
Q4
Q5
NOMinal
<numeric>
Sets the nominal value
Real value in ohms, henries, farads N<numeric>;
BLANking
<a> <b>
Front panel display digit blanking
Eliminate <a> digits from RLC and <b> digits
From QDR O<a><b>

1689-9640
Digibridge IEEE-488.2 Board Page 9
BIN: Sets the limit entries for binning
NUM <numeric> Bin # B<numeric>
HIGH <numeric> Real value high limit in % H<numeric>;
LOW <numeric> Real value low limit in % L<numeric>;
BINSummary
DISable
ENABle
RESet
Enables or disables bin summary output
Disable output
Enable output
Reset bin summary to 0
E0
E1
E2
OUTPut
NONe
BIN
QDR
QBIN
RLC
RBIN
RQDR
RQBin
RQBFail
RQBPass
Sets the data to output via GPIB / RS-232
None
Bin #
QDR
QDR, Bin #
RLC
RLC, Bin #
RLC, QDR
RLC, QDR, Bin #
RLC, QDR, Bin # on FAIL only
Same on FAIL, Bin # on PASS
X0
X1
X2
X3
X4
X5
X6
X7
X8
X9
DATaformat
ASCii
BINary
Selects GPIB / RS-232 output data format
Normal ASCII (not compacted)
Compacted binary format
x0
x1
SYSTem:
SWITch
ENABle
DISable
Enables or disables the manual start switch
Enable switch
Disable switch
W0
W1
KEYPad
ENABle
DISable
Enables or disables the front panel keypad
Unlock (enable keypad)
Lock (disable keypad)
K0
K1
RESet Resets settings to turn-on conditions P2
RESTart Restarts and reruns power-on diagnostics P3
CALibration
DISable
OPEN
SHORt
Zero calibration
Disable
Perform open circuit calibration
Perform short circuit calibration
Z0
Z1
Z2

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Page 10 Digibridge IEEE-488.2 Board
COMMunicate:
GPIB:
ADDRess? Reads the instrument GPIB address
CONFigure
ENABle
DISable
Enables or disables the GPIB interface
Enable GPIB interface
Disable GPIB interface (if using RS-232)
SERial:
CONFigure
ENABle
DISable
Enables or disables the RS-232 serial interface
Enable RS-232 interface
Disable RS-232 interface (if using GPIB)
BAUDrate
9600
19200
38400
57600
115200
Sets the RS-232 interface baud rate
PARity
NONe
EVEN
ODD
Sets the RS-232 interface parity
No parity
Even parity
Odd parity
STOPbits
1
2
Sets the RS-232 interface stop bits
One stop bit
Two stop bits
HANDshake
NONe
XON
HARDware
MODem
Sets the RS-232 interface handshake
No handshake
XOn/XOff software handshake
Hardware handshake
Modem handshake
ERRor? Reads the error message from error queue
[:NEXT?] Reads the error message from error queue
VERSion? Reads the interface version
STATus:
OPERation? Reads the Event Register

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Digibridge IEEE-488.2 Board Page 11
OPERation:
[EVENt]? Reads the Event Register
CONDition? Reads the Condition Register
ENABle <numeric> Sets the Enable Mask Register
ENABle? Reads the Enable Mask Register
QUEStionable? Reads the Event Register
QUEStionable:
[EVENt]? Reads the Event Register
CONDition? Reads the Condition Register
ENABle <numeric> Sets the Enable Mask Register
ENABle? Reads the Enable Mask Register
PRESet Enables all required event reporting
MEASure Initiates a measurement (like start switch) G0
*CLS Clear Status Register
*ESE <numeric> Sets Standard Event Status Enable
*ESE? Reads Standard Event Status Enable
ESR? Reads the Standard Event Status Register
*IDN? Reads the instrument identification information
*OPC Sets the OPC bit in the Standard Event Status
*OPC? Reads the OPC bit
*RST Resets buffers
*SRE <numeric> Sets the Service Request Enable Register
*SRE? Reads the Service Request Enable Register
*STB? Reads the Status Byte Register
*TST? Self-test query
*WAI Waits until all commands have completed
Notes: Parameters in bold are default power-on or SYSTem:RESet (P2) settings.
Commands in italic are available only on the Digibridge 1693 model.

IET Labs Digibridge IEEE-488.2 Interface Board User Manual Page 12 of 31
IEEE 488.2 / SCPI Digibridge Command Reference
:CONFigure:PARameter
Syntax: :CONFigure:PARameter {LQ|CD|CR|RQ|LQPPm|CDPPm|CRPPm|RQPPm|AUTo|
RX|GB|ZANG|YANG|ZAPPm|YAPPm}
Description: Sets the measured parameter.
Parameter:
Value
Description
LQ Inductance (L/Q)
CD Capacitance (C/D)
CR Capacitance (C/R)
RQ Resistance (R/Q)
LQPPm Inductance (L/Q) ppm
CDPPm Capacitance (C/D) ppm
CRPPm Capacitance (C/R) ppm
RQPPm Resistance (R/Q) ppm
AUTo
(default) Automatic selection of R/Q, C/D, or L/Q
RX Resistance (R/X)
GB Conductance (G/B)
ZANG Impedance (Z/ANG)
YANG Admittance (Y/ANG)
ZAPPm Impedance (Z/ANG) ppm
YAPPm Admittance (Y/ANG) ppm
Equivalent legacy command: M0, M1, M2, M3, M4, M5, M6, M7, M8, K2, K3, K4, K5, K6, K7
Equivalent key:
Note: Parameters in italic are available only on the Digibridge 1693M model.
:CONFigure:CIRCuit
Syntax: :CONFigure:CIRCuit {PARallel|SERies}
Description: Sets the measurement equivalent circuit.
Parameter:
Value
De
scription
PARallel Parallel equivalent circuit
SERies
Series equivalent circuit
Equivalent legacy command: C0, C1
Equivalent key:

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Digibridge IEEE-488.2 Board Page 13
:CONFigure:APERture
Syntax: :CONFigure:APERture {FAST|MEDium|SLOW }
Description: Sets the measure rate.
Parameter:
Value
Description
FAST Sets measurement rate to fast
MEDium Sets measurement rate to medium
SLOW
Sets measurement rate to slow
Equivalent legacy commands: S0, S1, S2
Equivalent key:
:CONFigure:MODe
Syntax: :CONFigure:MODe {TRIGgered|CONTinuous|MTRiggered|MCONtinuaous}
Description: Set the measure mode.
Parameter:
Value
Description
TRIGgered
Set measurement mode to triggered
Continuous Set measurement mode to continuous
MTRiggered Set measurement mode to triggered median value
MCONtinuous Set measurement mode to continuous median value
Equivalent legacy command: T0, T1, T2, T3
Equivalent key: none
:CONFigure:DISPlay
Syntax: :CONFigure:DISPlay {BIN|DELTa|VALue|RLC}
Description: Set measurement displayed on Digibridge front panel.
Parameter:
Value
Description
BIN Display Bin #
DELTa Display Delta %
VALue
Display Value
DRLC Display Delta RLC
Equivalent legacy command: D0, D1, D2, D3
Equivalent key: none

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Page 14 Digibridge IEEE-488.2 Board
:CONFigure:DISPlay:RATio
Syntax: :CONFigure:DISPlay:RATio {NOMValue|VALNominal}
Description: Set Digibridge front panel to display measurement ratio.
Parameter:
Value
Description
NOMValue Display Ratio: nominal value / RLC value
VALNominal Display Ratio: RLC value / nominal value
Equivalent legacy command: D4, D5
Equivalent key: none
:CONFigure:DISPLay:BINRatio
Syntax: :CONFigure:DISPLay:BINRatio {NOMValue|VALNominal}
Description: Set Digibridge front panel to display measurement bin on ratio.
Parameter:
Value
Description
NOMValue Display Bin on ratio: nominal value / RLC value
VALNominal Display Bin on ratio: RLC value / nominal value
Equivalent legacy command: D6, D7
Equivalent key: none
:CONFigure:FUNCtion
Syntax: :CONFigure:FUNCtion {MEASure|ENTer}
Description: Set function mode to measurement or setting entry. This command affects user keyboard
entry.
Parameter:
Value
Description
MEASure
Set function to Measure
ENTer Set function to Enter (enable setting configuration)
Equivalent legacy command: P0, P1
Equivalent key: MEASURE key, current state indicated by MEASURE and ENTER LEDs.
:CONFigure:RANGe
Syntax: :CONFigure:RANGe {HOLD|1|2|3|4|AUTo}