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

1689-9640
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.

1689-9640
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.

1689-9640
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.

1689-9640
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