LED Drive, LEDs will not operate | Agilent Technologies L4400

Microwave Switch/Attenuator Driver

7

LED Drive

The distribution boards contain a ribbon cable header you can use to connect LEDs to provide a visual indication of switch state. These lines reflect the state of their corresponding channel’s position indicator. Some systems use LEDs as a graphical indicator of switch positions.

Use the ROUTe:RMODule:BANK:LED:DRIVe:LEVel command to set the drive current for the LEDs. You do not need to provide an external current limiting resistor. This command uses special channel addressing as described in “Remote Module Identifiers” on page 145.

Once the drive current is set, enable the LED drives using the ROUTe:RMODule:BANK:LED:DRIVe:ENABle command. This command uses special channel addressing as described in “Remote Module Identifiers” on page 145.

	N O TE	The LEDs obtain their power from the remote module power supply. If the
	N O TE	ROUTe:RMODule:DRIVe:SOURce OFF command has been sent, the
		ROUTe:RMODule:DRIVe:SOURce OFF command has been sent, the
		LEDs will not operate.

Simplified connections for the position indicators are shown in the diagrams

beginning on page 184.

L4400 User’s Guide

151

Image 161

Agilent Technologies L4400 manual LED Drive, LEDs will not operate

Contents

User’s Guide Manual Part Number General Additional Safety Notices Declaration of Conformity Contents Operating and Programming Using the Alarm Output Lines Matrix Switch Instrument Low Frequency Multiplexer Switch Instrument 34937T Terminal Block L4437A Simplified Schematic Totalizer Input Digital Input/Output Channel Isolated DAC Module L4451A and L4452A Calibration Procedures Introduction to the L4400 Series LXI Instruments L4400 Series LXI Instrument Voltage Ratings Instrument ConsiderationsEnvironmental Operating Conditions Transients Electrical Operating ConditionsHigh Energy Sources Module inputs Ordering Information Interconnection Solutions Overview Bench-Top Operation and Instrument Rack Mounting Rack Mounting Kit ContentsBench-Top Operation Rack Mounting Y1160A Instrument Rack Mount Kit L4400 Series Procedure Access to the cabinet’s vertical columns is desired Install the Shelf Rails Rack Column and Shelf Rail Orientation Install Instruments on the Shelf Install the Sliding Shelf Connecting the terminal block to the instrument Connecting the Terminal Block Support Sleeve Connecting the Power Cord and Turning On the Instrument Applying PowerAgilent L4400 Series Instrument Input Power Specifications Connect the Shelf to the Rack Frame Location of the L4400 Series Instrument Power Button Software Installation and Configuration Agilent IO Libraries Suite System Requirements Installing the Agilent IO Libraries Agilent Visa with Another Vendor’s Visa Installing the L4400 Instrument DriversInstalling the L4400 Instrument Drivers L4400 Programming Environments and Recommended Drivers L4400 Product Reference CD-ROM Software Driver Menu Private LAN Considerations Configuring the L4400 InstrumentsSelecting a LAN Network Site LAN Considerations Connecting the LAN Cables Typical Private LAN Network Connections Private Network Connections Site Network Connections IP Addresses and Host Names Instrument Addressing Configuring the LAN InterfaceComputer Configuration Libraries Suite Getting Started Locating the Instruments Agilent Connection Expert ACE Opening Window Manually using the IP addresses Adding and Configuring the Instruments Verifying a Communication Path to the Instrument Interactive IO 10. Configured Instruments added to LAN Network 11. Selecting an Instrument and Starting Interactive IO Identifying the Instruments IDN? Using the Instrument Web Interface 12. Opening the Instrument Web Interface 13. L4450A Web Interface Welcome Editing the Instrument’s LAN Settings L4400 User’s Guide Help contents LAN Configuration Command Summary Starting Agilent Connection Expert Gpib ConfigurationConnecting the Gpib Cables 16. Adding Instruments to the Gpib Interface Adding Instruments to the Gpib Configuration Changing the Gpib Address Gpib Address StringVerifying the Gpib Path 19. Setting the Gpib Address Using the Interactive IO Window Verifying the new Gpib Path 20. Changing the Gpib Address within Configuration Expert Adding Additional Instruments 21. Connecting to Gpib Address 10 using Interactive IO Installing the Firmware Update Utility Firmware UpdatesDownloading the Update Utility and Firmware FirmwareUpdateUtility.exe Downloading and Installing the Instrument Firmware Update each instrument 22. Firmware Update Utility Firmware File Selection 23. Selecting the Instrument Interface Updated carrier firmware Current sub-assembly firmware revision is incompatible with 24. Instrument Firmware Update Complete L4400 Instrument Power-on and Preset States Instrument Power-On and Default LAN Configuration StatesLAN Reset Default Configuration LAN Parameter Default Reset Setting Default LAN Configuration Settings Operating and Programming Front Panel LEDs LAN Reset ButtonL4400 Instrument Front Panel Overview Color Condition L4400 LED Definitions and Instrument Status Analog Bus Port L4400 Instrument Rear Panel Overview Gpib Connector Ext Trig/Alarms/DIO PortAlarm Usage LAN Port L4400 Series Channel Addressing Examples Introduction to the Scpi Command LanguageL4400 Series Channel Addressing Scheme Keywords Syntax ConventionsBraces and Vertical Bars Brackets Using the MIN and MAX Parameters Command SeparatorsQuerying Parameter Settings Linking Commands Specifying Channel Lists and Scan Lists L4400 Scpi Command Summary MEMory L4400 Series Scpi Command Summary IEEE-488 Commands SYSTem LAN Configuration Modifying IVI-COM Examples .NET L4400 Series Programming Examples Changing the Instrument Address String IVI-COM Programs Visual Basic.NET Visual Basic Modifying IVI-C Examples Changing the Instrument Address String IVI-C Programs Modifying Visa and Visa COM Examples Change address string Double-click to view source code Visa COM Examples Agilent L4400 Series and 34980A Module Cross Reference Using L4400 Instruments in Agilent 34980A Applications Usage Analog Bus ApplicationsPorting Applications 2nd Edition Occurs. The pollution has no influence on insulation IEC Safety Interlock All L4400 series instruments User-Defined Channel Labels Rules for Scanning Scanning Applications Make- before- break fashion Creating the Scan List Interval Scanning Scan Trigger Source Manual Scanning Alarm Limits on Scanning on Alarm Externally Triggering a Scan Trigger Count Sweep Count 11. Sweep Count Diagram L4421A 40- Channel Armature Multiplexer Channel Delay 12. Channel Delay Non-Sequential Scanning Reading Format Monitor Mode Scanning with External Instruments Common Terminals InputChannels 14. External Scanning Using the L4421A and a DMM Initiate the scan close first channel Alarm Limits FORMatREADingTIMETYPE command setting OUTPutALARm12SOURce @chlist Enable pattern compare mode Viewing Stored Alarm Data 15. The L4400 Series Rear Panel Alarm Connector Using the Alarm Output Lines Clear Both alarm outputs Using Sequences L4437A Defining a SequenceL4421A / L4433A L4450A L4445AL4451A L4452A Routseqdef MYSEQ1,ROUTCLOS @10011009OPEN @1001 Executing a Sequence Querying the Sequence Definition Executing a Sequence on an Alarm Condition Reading the List of Stored Sequences Deleting Sequences Instrument State Storage Error Conditions Calibration Overview Relay Cycle Count L4421A 40-Channel Armature Multiplexer L4421A Measurement Functions Low Frequency Multiplexer Switch Instrument L4421A Scpi Command Summary L4421A Scpi Command SummarySubsystem Commands ROUTe L4421A Supported Measurement Functions SENSe Switch Control L4421A Example Program Segments DIAGnosticOpening and Closing Channels TRIGger L4421A 40-Channel Armature Multiplexer Hardware Description Querying and Clearing Cycle Count, and Resetting Modules Simultaneously Bank Relays Armature latching L4421A Simplified Schematic Bank L4421A D-Sub Connectors Further information This means that when an installed module is exposed34921T Terminal Block 34921T Terminal Block This page Intentionally Blank L4433A Dual/Quad 4x8 Reed Matrix Matrix Switch Instrument L4433A Scpi Command Summary Sub connectors Matrix Switch Instrument L4433A Scpi Command Summary L4433A Scpi Command Summary L4433A Example Program Segments SYSTemMODuleWIREMODE WIRE1,1 Buses Although the previous two examples show the same channelDerivation Mode Reading Cycle Count and Resetting the Power-On StateLinking Multiple L4433A Instruments L4400 User’s Guide 117 L4433A Dual/Quad 4x8 Reed Matrix Hardware Description Two-Wire Mode One-Wire Mode Matrix L4433A Simplified Schematic for Two-Wire Mode Matrix L4433A D-Sub Connectors for Two-Wire Mode 112 for further information 34933T-001 Terminal Block for Two-Wire ModeDoesnt match the present module configuration L4400 User’s Guide 123 Channel L4433A Simplified Schematic for One-Wire Mode Matrices 3 Matrices 1 34933T-002 Terminal Block for One-Wire Mode L4437A General Purpose Switch WA RN I N G General Purpose Switch Instrument A Relay Power-Down State Jumper L4437A Scpi Command Summary L4437A Scpi Command Summary Reading Jumper State and System Identity Reading Cycle Count and Resetting Modules to Power-On StateL4437A Example Program Segments Threshold of 70 oC L4437A Simplified Schematic Channel Pin Pins L4437A D-Sub Connectors L4437A Terminal Block 34937T Terminal Block Microwave Switch/Attenuator Driver L4445A Scpi Command Summary L4445A Scpi Command Summary L4400 User’s Guide 137 L4445A Microwave Switch/Attenuator Driver L4445A Microwave Switch / Attenuator Driver Configuration Electro-static discharge 34945EXT Module Recommended Switches and Attenuators Power Consumption Power Supplies 1remchannel Channel Numbering Channel drive back on Simple Switch ControlYou must turn off the channel drive before sending Drive Modes Remote Module Identifiers Continuous Drive Current Using Single Drive Switches and AttenuatorsUsing Continuous Drive Pairing Channels Using Dual Drive Switches and Attenuators Channels must have verification enabled Using Pulse Drive Long Execution Times Verifying Switch State 150 LEDs will not operate LED Drive SYSTemRMODuleRESet Default and Reset States Default state of OPEN, no action is taken on these channels SYSTemPRESet, *RST, SYSTemCPON and Power OnROUTeRMODuleBANKPRESet Distribution Boards Y1150A Y1150A Switch Options Supported Y1150A Connections Y1150A Switch Connectors SW1 Through SW8 Cable Wiring Y1150A Switch Control Y1150A LED Connectors LED1 and LED2 Y1151A Y1151A Switch Options Supported Y1151A Connections Y1151A Switch Connector SW1 and SW2 L4400 User’s Guide 161 All channels are single drive Y1151A Switch Control Y1151A LED Connectors LED1 and LED2 Y1152A Y1152A Switch Options Supported Y1152A Connections +VR Y1152A Switch Connector SW2 and SW3 N181x Conductor Cable Y1152A Switch Control Y1152A LED Connectors LED1 and LED2 84904/5/6/7/8 Y1153AY1153A Attenuator Options Supported 8494/5/6 Y1153A Connections Connections to the attenuators. You should not use both Y1153A Attenuator connector P101 and P102 84904/5/8 Y1153A Attenuator Control Individual sections switchedWhen all channels open at reset maximum attenuation is set Y1153A LED Connectors LED1 and LED2 Y1154A Y1154A Switch Options Supported Y1154A Connections Y1154A Switch connector SW1 and SW2 Y1154A Switch connector SW3 Through SW8 N181x Cable Y1154A Switch Control Y1154A LED Connectors LED1 and LED2 Y1155A When using the Y1155A, the ROUTeRMODuleBANKPRESetOperations of these switch systems Capacity limitations EXT limits total switch Y1155A Switch Options Supported Y1155A Connections 876x Switches Unpaired Operations Y1155A Switch ControlPaired Operations Y1155A LED Connectors LED1 and LED2 Single Drive With Separate Position Indicators Simplified Connection Diagrams Paired Drive With Separate Position Indicators Paired Drive With Combined Position Indicators Mounting the Remote Modules Scpi Programming Examples Example Configuring an Agilent N1810ULExample Configuring a Paired Drive Channel Example Configuring a Single Drive Channel 190 Pattern Matching Counter Clock Handshaking CONFigure L4450A Scpi Command SummaryL4450A Scpi Command Summary MEASure Digital TRACe SOURce CALCulate Alarm Limit OUTPut Monitor SWEep FORMat Bank L4450A 64-Bit Digital I/O with Memory and CounterBank Reading Digital Data Basic Digital I/O OperationsChannel Numbering and Width Writing Digital Data Not exceed 5 Channel Width and Polarity, Threshold, Level, and Drive Output Handshaking Apply to the bank’s interrupt line Setting the Handshake Line Parameters Synchronous Handshake Mode H0 Direction Data Out L4400 User’s Guide 207 208 L4400 User’s Guide 209 Buffered Memory Output Buffered I/O Operations Data line polarity Buffered Memory Input Deleting Traces Memory Output Operations Interrupt Lines Apply to the bank’s handshake lines Byte OrderingMemory Input Operations Pattern Matching Counter Totalizer Mode Ext Gate Input Init Initiated Measurement Mode P1 Bank P2 Bank L4450A D-Sub ConnectorsClock P1 Bank 1 Connector Pin Assignments P2 Bank 2 Connector Pin Assignments L4450A Terminal Block 34950T Terminal Block 222 34951T Terminal Block Remote-sensing terminals H Sense and L Sense Recommended that you use remote-sensing. However, if Module’s Clock Out cannot drive the line at the same time Signal. However, both a user-supplied external clock L4451A Scpi Command Summary L4451A Scpi Command Summary L4400 User’s Guide 227 L4451A Example Program Segments Level Mode Waveform Mode Using this command will erase any downloaded waveforms Configuring a DAC ModuleExternal Clock External Trigger 34951A Module User-Supplied Connections L4451A Simplified Block Diagrams DAC L4451A D-Sub Connector Pinout L4451A Terminal Block 34951T Terminal Block 234 L4452A Multifunction Module L4452A Multifunction Module with DIO, D/A, and Totalizer L4452A Multifunction Module Enabled state, effectively creating a gate always conditionDigital Input/Output Totalizer Input L4452A Scpi Command Summary L4452A Scpi Command Summary Measurement L4400 User’s Guide 239 Data Totalizer L4452A Example Program SegmentsDigital Input/Output DAC Output Querying and Resetting the L4452A Totalizer L4452A Simplified Block Diagram L4452A D-Sub Connector L4452A Terminal Block 34952T Terminal Block 246 Multifunction Module Calibration Message Calibration Count Agilent Technologies Calibration Services Calibration ProceduresAdjustment is Recommended Calibration Interval Time Required for Calibration Automating Calibration ProceduresRecommended Test Equipment Table A-1. Recommended Test Equipment Calibration Security Following the procedure below Calibration Count Calibration Message Aborting a Calibration in Progress Until a complete re-adjustment has been performedCalibration Process L4451A 4-Channel Isolated DAC Module Performance Verification TestsL4451A and L4452A Performance Test Considerations Output current verification L4451A Verification Output Voltage verification Analog Output Verification TestCurrent Output Verification Voltage Output Verification Error From NominalTable A-2. L4451A Output Current and Voltage Levels 90 day Table A-2. L4451A Output Current and Voltage Levels cont’d Analog Output Adjustments CALibrationSECureSTATe 0, code Voltage Adjustments Table A-3. L4451A DAC Voltage Calibration Points Current Adjustments Table A-4. L4451A DAC Current Calibration Points CALibrationBEGinCURRent 1, @1001 DAC Output Verification Test L4452A Multifunction ModuleL4452A Verification Table A-5. L4452A Output Voltage Levels Channels 6 DAC Output Adjustment CALibrationBEGinVOLTage 1, @1006 This page Intentionally Blank Numerics Gpib L4400 User’s Guide 267 Visual Basic 6.0 L4400 User’s Guide 269