Agilent Technologies E1346A User Manual

Agilent 75000 SERIES BAgilent E1346A 48-Channel Single Ended RelayMultiplexer ModuleUser’s ManualCopyright© Agilent Technologies, Inc., 1995 - 2006*E1

Notes8 Agilent E1346A 48-Channel Single-Ended Relay Multiplexer Module User’s Manual

NotesAgilent E1346A 48-Channel Single-Ended Relay Multiplexer Module User’s Manual 9

Notes10 Agilent E1346A 48-Channel Single-Ended Relay Multiplexer Module User’s Manual

Chapter 1Getting Started with the Agilent E1346AUsing This ChapterThis chapter describes the Agilent E1346A 48-Channel Single Ended RelayMultiplexer

MultiplexerChannelDescriptions andConnectionsThe channel switches connect, through the AT, BT, and CT Tree Switches,to the Common Terminals. Closing

The Common Terminals also connect to the H, L, and G connections on theAnalog Bus Connector. The DT Tree Switch Terminals also connect to theI+, I-,

Multiplexer CardNumbers The card number identifies the module within a switchbox or scanningvoltmeter configuration. The switch module with the lowes

The logical addresses noted in Figures 1-2, 1-3, and 1-4 apply to modulesinstalled in an Agilent 75000 Series B Mainframe (Agilent Model NumberE1300/E

SCPI CommandFormat Used inThis Manual You can send SCPI commands in either a short or long form. A long formexample is:CLOSe (@102)The same command

Chapter 2Configuring the Agilent E1346A MultiplexerModuleUsing This ChapterThis chapter shows how to connect external wiring to the 48-Channel Single

Connecting Field WiringFigure 2-1 shows the terminal block for the 48-Channel Single Ended RelayMultiplexer Module (Agilent E1346A). Use the followin

Wiring a Terminal BlockChapter 2 Configuring the Agilent E1346A Multiplexer Module 19

Connecting User InputsThe Agilent E1346A consists of a relay modules and a terminal module.Normally you will use the terminal block supplied with the

Connecting the Analog BusFigure 2-3 shows how to connect the analog bus between multiplemultiplexer modules and to the Agilent E1326A Multimeter. Use

Figure 2-3. Analog Bus Connections between Multiplexer/Multimeter Modules22 Configuring the Agilent E1346A Multiplexer Module Chapter 2

Removing the Low-to-Guard Isolation JumperIsolation jumper JM1 connect the Low (L) and Guard (G) commons to eachother. To minimize errors caused by l

new jumpers in the new priority location (Figure 2-4 shows a prioritychange from 1 to 7). Set the interrupt priority level to the interrupt handlerle

Chapter 3Using the Agilent E1346A MultiplexerModuleUsing This ChapterThis chapter uses typical examples to show how to use the 48-ChannelRelay Multip

Connecting Channels to Common for MakingMeasurements• Closing any channel on the multiplexer module connects thechannel’s High (H) terminal to the Cha

Example: ConnectChannel 02 to theDT Tree SwitchTerminals for anOhms MeasurementFigure 3-2 shows how to connect channel 02 of a single module switchbox

ContentsAgilent E1346A 48 Channel Relay MultiplexerWarranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Comments Opening Channels. Use the OPEN <channel_list> command to openchannels. For example, to open channel 02 and the DT Tree Switch,execute

Scanning a Range of Switchbox Channels• You can scan a range of channels of a switchbox consisting of singleor multiple multiplexer modules (see Comme

Figure 3-3. Scanning Channels 100 to 247 of a Two Module SwitchboxFigure 3-4. Mainframe to Multimeter Connections for Synchronization30 Using the A

Example: Making2-Wire OhmsMeasurements byScanningUse the same setup shown in the first program example in this section,except change the command in li

32 Using the Agilent E1346A Multiplexer Module Chapter 3

Chapter 4Understanding the Agilent E1346AMultiplexerUsing This ChapterThis chapter explains techniques to scan the channels of the 48-ChannelSingle E

Figure 4-5. Scanning Commands34 Understanding the Agilent E1346A Multiplexer Chapter 4

Advancing Scan (TRIG) Can use TRIG command to advance the scan list when switchbox is in TRIG:SOUR HOLD or TRIG:SOUR BUS. For either tri

Example: ScanningWith ExternalDevicesThis example uses the mainframe "Trig Out" port to synchronize themultiplexer to an Agilent 3457A Digit

Example: ScanningUsing "Trig Out"and "Event In"PortsThis example uses the mainframe "Trig Out" and "Event In"

4. Understanding the Agilent E1346A Multiplexer . . . . . . . . . . . . . . . . . . . . . . . . 33Using This Chapter . . .

Using the Scan Complete BitYou can use the Scan Complete Bit (bit 8) in the Operation Status Registerof a switchbox to determine when a scanning cycle

Chapter 5Agilent E1346A Multiplexer CommandReferenceUsing This ChapterThis chapter describes Standard Commands for Programmable Instruments(SCPI) and

Command Separator A colon (:) always separates one command from the next lower levelcommand as shown below:ROUTe:SCAN:MODE?Colons separate the root co

Parameters Parameter Types. The following table contains explanations and examplesof parameter types you might see later in this chapter.Parameter Ty

ABORtThe ABORt subsystem stops a scan in progress when the scan is enabled viathe interface, and the trigger modes are TRIGger:SOURce BUS orTRIGger:SO

ARMThe ARM subsystem selects the number of scanning cycles (1 through32767) for each INITiate command.Subsystem Syntax ARM:COUNt <number>MIN |MA

DISPlayThe DISPlay subsystem monitors the channel state of a selected module (orcard) in a switchbox. Only operates with mainframes that have a displ

MONitor:CARD DISPlay:MONitor:CARD <number>|AUTO selects the module in aswitchbox to be monitored.ParametersParameter Name Parameter Type Range o

INITiateThe INITiate subsystem selects continuous scanning cycles and starts thescanning cycle.Subsystem Syntax INITiate:CONTinuous ON |OFF |1 |0:CONT

:CONTinuous? INITiate:CONTinuous? queries the scanning state. With continuousscanning enabled, the command returns ON. With continuous scanningdisab

TRIGger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57[:IMMediate]

OUTPutThe OUTPut subsystem enables or disables the "Trig Out" BNC port of theAgilent E1300/E1301 Mainframe.Subsystem Syntax OUTPut[:STATe] O

[ROUTe:]The ROUTe subsystem controls switching and scanning operations for themultiplexer modules in a switchbox. Subsystem Syntax [ROUTe:]CLOSe <c

CLOSe? [ROUTe:]CLOSe? <channel_list> returns the current state of the channelqueried. The channel_list is in the form (@ccnn). The command ret

Comments• Query is Software Readback: The [ROUTe:]OPEN? commandreturns the current software state of the channel specified. It doesnot account for r

20 OUTPUT 70914;"OUTP ON" Enables "Trig Out" port30 OUTPUT 70914;"TRIG:SOUR BUS" Sets switchbox to receive Bustriggers

Example Selecting the 2-Wire Ohms ModeTRIG:SOUR EXT Selects external trigger sourceSCAN:MODE RES Selects the 2-wire ohms scanningmodeSCAN (@100:147)

STATusThe STATus subsystem reports the bit values of the Standard OperationStatus Register. Enables the Status Register to set a bit after a bit is s

SYSTemThe SYSTem subsystem returns the error numbers and error messages inthe error queue of a switchbox, and returns the types and descriptions ofmod

Example Reading the Description of a Card #1 ModuleSYST:CDES? 1 Determine the description:CTYPe? SYSTem:CTYPe? <number> returns the module (car

TRIGgerThe TRIGger subsystem commands controls the triggering operation of themultiplexer modules in a switchbox.Subsystem Syntax TRIGger[:IMMediate]:

Notes4 Agilent E1346A 48 Channel Relay Multiplexer Contents

• Using External Trigger Inputs: With TRIGger:SOURce EXTernalselected, only one switchbox at a time can use the external triggerinput at the Agilent

IEEE 488.2 Common CommandsThe following table lists the IEEE 488.2 Common (*) Commands that the Agilent E1346A 48-Channel Single Ended Relay Multiplex

Command Quick ReferenceThe following tables summarize SCPI and IEEE 488.2 Common (*)commands for the 48-Channel Single Ended Relay Multiplexer Moduleu

Appendix AAgilent E1346A Multiplexer Specifications Maximum Voltage:Terminal to Terminal: 120 V DC or AC RMS; 170 V PeakTerminal to Chassis: 120 V DC

Relay Life Electromechanical relays are subject to normal wear-out. Relay lifedepends on several factors. The effects of loading and switching frequ

Appendix BAgilent E1346A Multiplexer RegistersRegister DefinitionsThe 48-Channel Relay Multiplexer Module is a register based device. SeeFigure B-1

The A16 base address used in register-based programming depends onwhether the A16 address space is located inside the E1300(01)Mainframe/E1406 Command

1. Agilent E1499A V/382 Controller with READIO and WRITEIO(register access is from VXI backplane).2. E1300/01 IBASIC absolute addressing with READIO

Embedded ComputerProgramming (C-Size Systems)If the E1346A multiplexer is part of a C-Size VXI system, the fastestthroughput is achieved using an embe

External ComputerProgrammingWhen the multiplexer is programmed by an external computer through theE1300/E1301 mainframe or E1406 Command Module, the r

CertificationAgilent Technologies certifies that this product met its published specifications at the time of shipment from the factory. AgilentTechn

Writing to theRegisters You can write to the following multiplexer registers: • Status Register (base +04h) • Tree Switch Registers (base +06h) •

ID Registerb +001514131211109876543210Write Undefined (Logical Address)Read* Reg-Base A16 Manufacturer ID* Returns FFFFh = Agilent Technologies A16 on

70 Agilent E1346A Multiplexer Registers Appendix B

Appendix CAgilent E1346A Multiplexer Error MessagesTable C-1 lists the error messages associated with the multiplexer modulesprogrammed by SCPI. See

72 Agilent E1346A Multiplexer Error Messages Appendix C

IndexAgilent E1346A 48 Channel Relay Multiplexer!*CLS 38*RST 16*SRE 38*STB 38OPERation? 54:SOURce 57MONitor 44AAbbreviated Commands 40ABORt s

Commands (continued)ROUTe:OPEN? 50ROUTe:SCAN 25, 51ROUTe:SCAN:MODE 25, 52ROUTe:SCAN:MODE? 53SCPI 11, 13, 16SCPI Format 16, 39STATus:OPERation:EN

OOhms Measurement 27OPEN 50OPEN,(ROUTe:OPEN) 28OPEN? 50OPEN?,(ROUTe:OPEN?) 28OperationInitial 16OPERation:ENABle 54Optional Commands 16Optiona

TTerminal Blocks 18 - 19Throughput speed 64Tree Terminalsconnecting 26TRIG:SOURce 33Trigger Sources 33TRIGger subsystem 57Triggersscanning 33VV

Frame or chassis ground terminal—typicallyconnects to the equipment’s metal frame.Alternating current (AC).Direct current (DC). Indicates hazardous vo

DECLARATION OF CONFORMITYAccording to ISO/IEC Guide 22 and CEN/CENELEC EN 45014 Agilent E1346A 48-Channel Single-Ended Relay Multiplexer M