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Models 707B and 708B Switching Matrix

1. cccccecccseceeeeeceeeeeeeeeneeceeeeeeeeaueeseceeeneeaeeseeeaess 3 10 Be qe EU eiii DRITTER 3 10 Table of Contents Models 707B and 708B Switching Matrix User s Manual 19B Embedded RR E ee ane T E T TE 3 11 Create a script using TSB Embedded cccccccsssecceeeeeceeseecceececceuseesseneeessseesseuesesseneeenes 3 11 Working with the Model 4200 SCS 1 eeeeeeeeeeeeleeeniee enne e nnne nahen n nana n nnns 4 1 prio re 0 Ier 5 REP E TEE E DOE RES 4 1 Equipment required to run the exalmp B eom sepu ea qun seti l ecu naque sou a ap ectic yt tou eR be p aout n E nets 4 1 Configure Model 707B or 708B for Model 4200 SC sees 4 1 Add Model 707B or 708B to Model 4200 SCS eessessseesssseeeneeeen nennen nnns 4 2 He TL SIBDS TE E E EEA A E A IAE EET E EE AE E Meist E T dip e MS 4 3 Working with the Series 2600A ccccccseeeseeeceseseeeeeeneeaeeeseeeaeeesaeseessenesseeesanenes 5 1 About the Series 2600A GXSITIDIBB e onteepitin addu ferus te e epe ben scm Los phtpa ovium doas un onu ta fln 5 1 Equipment required to run the examples iius ini rne bor ite un tribue eoo da sas rose Se edes peUsadbs 5 2 Connect the SCI NE E OO NEUES 5 2 Logical block diagram of test connections aus caciaen coco enun cover tmn aai aare sau eun eint Favbcs ko adtse du mua ties 5 3 Example 1 Control with separate interfaces ccccccecccceececceeeeceeeeeseeeeeaeseeseeee
2. 7 1 A model software does not run on B models 7 3 Matrix Ready and External Trigger lines 1 3 Switch matrix does not recognize my card 7 3 Instrument s internal web page is not accessible 1 4 Error when try to close a channel 1 5 Switch relays will not close 7 5 Save the present state of the instrument 1 5 LabVIEW driver for the Model 707B or 708B 1 6 About this section The intent of this section is to troubleshoot the most common problems encountered with the Models 707B and 708B For additional troubleshooting information please see the Troubleshooting section in the Models 707B and 708B Reference Manual Need different line frequency or voltage need to use 707B or 708B at a different line frequency or voltage What do I need to do The Model 707B or 708B only supports a line frequency of 50 60 Hz The line frequency is automatically sensed and no user action is needed Model 4200 SCS does not recognize switch matrix The Model 4200 SCS does not recognize the Model 707B or 708B What do I do To work with the Model 4200 SCS you must have DDC compatibility mode enabled and must communicate through the GPIB Section 7 Troubleshooting FAQs Models 707B and 708B Switching Matrix User s Manual You can select one of two options when enabling Model 707A or 708A DDC c
3. Create a script diodeTest to contain test configuration and execution instructions loadscript diodeTest Create a function to configure the Model 707B or 708B function configSwitch Reset TSP Link Reset Model 707B or 708B Clear errors tsplink reset localnode reset errorqueue clear matrixChannels Define table that details crosspoints to close to connect each diode to the SMU matrixChannels 1 1A01 1B02 Add entries to the table matrixChannels 2 1403 1B04 matrixChannels 3 1405 1B06 matrixChannels 4 1A07 1B08 matrixChannels 5 1A09 1B10 matrixChannels 6 1A11 1B12 l Use the values in the table to create a for 1 1 6 do scan list scan addimagestep matrixChannels i end Set TSP Link lines 1 and 2 to send and receive falling edge triggers tsplink trigger 1 mode tsplink TRIG FALLING tsplink trigger 2 mode tsplink TRIG FALLING Clear any latched triggers on tsplink trigger 1 clear TSP Link trigger lines 1 and 2 tsplink trigger 2 clear scan bypass scan ON Configure the scanning and triggering mode of Model 707B or 708B Bypass needed for trigger signal to start scan l Arm scan immediately scan trigger arm stimulus 0 scan trigger channel stimulus tsplink trigger 2 EVENT ID tsplink trigger 1 stimulus scan trigger EVENT CHANNEL READY Scan scancount 1 end EUnet omeconiepc SU Trigger channel close action with rece
4. Configure current source to perform a linear sweep from 0 to 10 mA in 1 mA steps Configure voltage limit Configure SMU to measure voltage Set a fixed voltage range of 5 V Set integration rate to 1 PLC Complete each sweep once Number of steps in sweep 11 Example program code for the Model 707B or 708B send the following commands to configure the Model 707B or 708B Example program code for the Model 707B or 708B Code reset errorqueue clear Notes and comments Reset the instrument to factory defaults Clear all errors To run the test send the following commands to the corresponding instrument Me After each READ query to the Model 2400 you must retrieve the instrument s response If you do not retrieve the response the Model 2400 generates an error 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 6 Working with the Series 2400 Example program code to run the test Model Code Notes and comments 2400 OUTP STAT ON Turn on the output of the SourceMeter instrument 707B or 708B channel exclusiveclose 1A01 1B02 Connect first diode 2400 READ Initiate sweep and return data 707B or 708B channel exclusiveclose 1A03 1B04 Connect second diode 2400 READ Initiate sweep and return data 707B or 708B channel exclusiveclose 1A05 1B06 Connect third diode 2400 READ Initiate sweep and return data 707B or 708B channel exclusi
5. 11 07 Do not exceed the maximum signal levels of the instruments and accessories as defined in the specifications and operating information and as shown on the instrument or test fixture panels or switching card When fuses are used in a product replace with the 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 connections 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 AN symbol on an instrument means caution risk of danger The user should refer to the operating instructions located in the user documentation in all cases where the symbol is marked on the instrument The A symbol on an instrument means caution risk of danger Use standard safety precautions to avoid personal contact with these voltages The symbol on an instrument shows that the surface may be hot Avoid personal contact to prevent burns The rh If this amp symbol is on a product it indicates that mercury is present in the display lamp Please note that the lamp must be properly disposed of according to federal state and local laws symbol indicates a connection terminal to the equipment frame The WARNING head
6. from the web interface using the Snapshot feature 1 From the left navigation click slot 1 2 Close the channels that you want to include in the pattern For this example close channels 1D12 1C11 1B10 and 1A09 3 Click Pattern above the Channel Action Type box The Channel Pattern Configuration dialog box is displayed Type TESTO2 for the pattern name in the box at the top of the dialog box Click Snapshot A new pattern is created that contains the closed channels Figure 20 Channel pattern configuration dialog box m IChannel Pattern Configuration x Channel Pattern Tet Pattern TestiPatten 0 vl Create Snapshot Delete Attributes Channels Ballable selected 1 ALT 1 402 ALCS 1404 1405 1405 TALTH 111011 1004 1D10 Actions e Channel Close 2 Exclusive Close _ Exclusive Siot Close Opern Close Exercise Close channels in TESTO2 from the web interface To close channels in channel pattern TEST02 from the web interface 1 Click Pattern above the Channel Action Type box The Channel Pattern Configuration dialog box is displayed 2 Select TESTO02 from the list box at the top of the dialog box In the Actions area select the type of close you want to perform 707B 900 01 Rev A August 2010 3 7 S ection 3 Using the web interface Models 707B and 708B Switching Matrix User s Manual Actions Close O Channel Close TY 3 Exclusive Slot Close A
7. you can make similar connections to the other switch cards listed for this example Model 2600 TLINK TriggerLink to digital I O cable assembly Connect to the digital I O connector on the rear panel of the a Model 70xB system switch Model 2400 WARNING wo iwrennac OPERATOR SEPVICABLE PARTS SERVICE BY QUALINED PERSONNEL ONLY HI Eg j va KEITHLEY SEN f u GUARD 250v wv 5o Sv C PEAK PEAK PEAK SLOWBLOW 25A 2 LINE RA 19 2 SN V S Model 7072 SENSE OUTPUT aeih CATI A 8x12 Switch Matrix Card e t aN NS DAS Mounting dii g N screw CAUTION ror comm Shp ero Nou AGAINST FIRE HAZARD REPLACE PUSE WITH SAME TYPE AND RATING Columns Rows Z ze 1 12 A H H AN Low current rows Lt B cO DO a Model 237 BAN 3A Triax to banana cable assembly Carrying li AUI handle EQ Setup Notes F 1 This drawing illustrates connections to the Model 7072 8x12 Switch Matrix Card Connections to other cards supported by the G nae CV 70xB System Switch are similar aii H 2 All triaxial connections for both the Sourcemeter instrument and the diodes are made to the center conductor pin of the triaxial connector Mounting screw Logical block diagram of test connections The following figure shows the logical block diagram of the test connections 6 2 707B 900 01 Rev A August 2010 Models 707B an
8. Oper 4 Click Close to close the channels 5 When you are done acting on this channel pattern click Close at the bottom of the dialog box to exit To delete a channel pattern from the web interface 1 Select the name of the pattern that you want to delete in the Channel Pattern Configuration dialog box 2 Click Delete 3 For more information about patterns including opening and closing the channels that are in patterns see Channel patterns on page 2 11 Scan Builder page 3 8 The Scan Builder page allows you to set up and run scans and triggers A scan is a series of steps that opens and closes switches sequentially for a selected group of channels During each step actions occur such as waiting for a trigger taking a measurement on an external instrument and completing a step count Scans automate actions that you want to perform consistently and repeatedly on a set of channels Triggers are events that prompt the instrument to move from one step to another in a scan Triggers can come from a variety of sources such as a key press digital input or expiration of a timer The sequence of actions and events that occur during the scan is called the trigger model described in Trigger model Scanning and triggering allow you to synchronize actions across channels You can set up a scan using the trigger model to precisely time and synchronize the Model 707B or 708B between channels and multiple instruments You c
9. V and pulsed l V characterization e Working with the Series 2600A on page 5 1 Demonstrates how to use the Model 707B or 708B with a Keithley Instruments Series 2600A System SourceMeter instrument to perform an l V sweep across a diode e Working with the Series 2400 on page 6 1 Demonstrates the basic interaction of the Model 707B or 708B with a Keithley Instruments Model 2400 SourceMeter instrument including how to use digital I O triggering to synchronize source and measure actions between the Model 707B or 708B and the Model 2400 The concepts in these examples can be applied when used using the Model 707B or 708B with other SCPI based instruments Section 1 Introduction Models 707B and 708B Switching Matrix User s Manual CD ROM contents There are several CD ROMs that are included with your instrument which contain the following items e The Test Script Builder Software and the Model 707B or 708B TSB add in which is a software tool you can use to create modify debug and store test script processor TSP test scripts e Switching product information e Product documentation including PDFs of the Model 707B or 708B Quick Start Guide User Manual and Reference Manual as well as the product data sheet product specifications and rack mount kit instructions e Product documentation for the switch cards that are compatible with the Model 707B or 708B e Model 707B or 708B drivers for IVI Instrument Driver and driver for Na
10. acquisition board for installation into a computer should never require cleaning if handled according to instructions If the board becomes contaminated and operation is affected the board should be returned to the factory for proper cleaning servicing 11 07 Table of Contents igge eli eu s g CERE en Sete seals atte ne S REESE 1 1 Introduction to this TREIEIESLL aa aoovidddoce a tatto ena gara VER aw aea Rr 1 1 Models 707B and 708B apDIICallOFS escsssccose iterat eie ndr Pag eS c aea ean ERN eda EE xPUREe e bana de Pod erae usas 1 1 Sep ci CON NITET mmt 1 2 Using the front panel interface 11 ee eeeee eese eeeeseee esee nnne nnne nnn nnn nn 2 1 glige a Ul 2 DRE TOT EORR moe 2 1 Model nr B PODDANE MEER DE EN 2 2 Model T096 FOM U RENE SUR ee ee nee ee eee 2 2 Kays ODE TEACH WNES cdieiepphitibnd e dtd pb pi Ebr feprPIP GU RM HS ERU vPRRROR eerie 2 3 EE LAEE NIS co E EM 2 3 FON PANEI EB ie settee stars idt Sate ps anc uelut obl Mou FAN RE Vu a Ede la usa abe vu ceed a MR cU DA 2 4 B 0 T HO 2 5 ELUNE es Ecl NOTER 2 6 Selecting and closing a channel from the front panel ccccceeeeeesaeeeeeeeeeeeeseeeeeeaeeeeeeas 2 7 Exercise Select and close slot 1 row C column 7 crosspoint eeeeseeeessseess 2 8 Crosspoint display Model 707B only cscesusatiitadoktu iE auta UU eus SE RUNS Tab dtd Cu n OUS Ee Sto 2 9 Selecting and
11. before using the product Refer to the user documentation for complete product specifications If the product is used in a manner not specified the protection provided by the product warranty may be impaired 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 properly for example setting the line voltage or replacing consumable materials Maintenance procedures are described in the user documentation The procedures explicitly 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 perform safe installations and repair products Only properly trained service personnel may perform installation and service procedures Keithley Instruments products are designed for use with electrical signals that are rated Measurement Category and Measurement Category ll as described in the International Electrotechnical Commission
12. displays any error messages and output from the script Script management options Existing scripts are listed in the User Scripts box on the left side of the web interface To delete a script click the name of the script and click Delete The script is deleted from the User Scripts list and from the nonvolatile memory of the instrument To stop operation of a script click Abort Script To export the selected script to the computer click Export to PC Choose the directory where you want to save the script and click Save Scripts are saved to a file with the extension tsp TSP files are native to Test Script Builder or TSB Embedded but they can be opened and edited in any text editor To import scripts from the computer click Import to PC Select the directory that contains the file You can only import files with the extension tsp To clear the name box and the box that contains the script click Clear You can type the name of a script in the TSP Script box and click View Script to view the contents of the script Exercise Use the command line to close and open channels Use the command line interface to perform close and open operations on channels 1 To send a single command to the instrument you can enter it in the Console box 2 To close channel 1B02 enter channel close 1B02 in the Console box 707B 900 01 Rev A August 2010 3 13 Section 3 Using the web interface Models 707B and 708B Switching Matrix User s Manual 3
13. e Close the channels in the channel pattern and open any other closed channels on the slot Press PATT and select EXSLOTCLOSE Press ENTER to open or close the channels Set up row column and channel labels You can define labels for rows columns and channels Using labels is a more descriptive way to refer to switching paths than the default channel identifiers Labels must be unique they cannot have the same as the name of another row column channel or channel pattern Labels cannot contain spaces and they do not persist through a power cycle Channel labels can be up to 19 characters Row and columns labels can be up to 8 characters On the crosspoint display the first four characters of the label are displayed On the bottom display the full label is displayed You can only set labels for slots and channels that are installed in the instrument 707B 900 01 Rev A August 2010 2 13 Section 2 Using the front panel interface Models 707B and 708B Switching Matrix User s Manual Exercise Create a row label for row D using the front panel To create a row label for row D using the front panel de 6 f If a pattern name is currently displayed on the bottom display press CHAN to place the display in Channel view Use the navigation wheel to select any channel on row D For example select 1D01 Press CONFIG then press CHAN Use the navigation wheel to select LABEL ROW to define a row label The label sele
14. other instrument connected to the Model 4200 SCS and is different than the controller s address On the Model 4200 open KCON In KCON open the Tools menu Select Add External Instrument Select Switch Matrix Select Model 707 707A Switching Matrix Note that the instrument is added to the Configuration Navigator In the KCON Workspace the Switch System Properties dialog box is displayed 8 Enter the appropriate GPIB Address for the Model 707B or 708B 9 Select an instrument connection scheme 10 Select the switch cards that you have already installed in the Model 707B or 708B 11 From the Tools menu check the configuration by selecting Validate Configuration V M DP oux S9 4 2 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 4 Working with the Model 4200 SCS 12 When the Model 4200 SCS finds the Model 707B or 708B a green check mark appears next to Verifying Keithley 707A Switching Matrix If there is an error a red X appears next to Verifying Keithley 707A Switching matrix An error description is provided Generally these errors are associated with an incorrect GPIB address 13 From the File menu save the current configuration by selecting Save Configuration You can now use the Model 707B or 708B with the Model 4200 SCS Next steps See the Model 4200 SCS Reference Manual Appendix B Using Switch Matrices Key Concepts section which includes e Sw
15. over a LAN connection The instrument web page resides in the firmware of the instrument Changes you make through the web interface are immediately made in the instrument Many examples in this manual and in the Model 707B and 708B Reference Manual can be run through the TSB Embedded page of the instrument web interface Connect to the instrument web interface The web interface requires the web browser plug in Sun Java Runtime Environment Version 6 or higher Installation files are available from http www java com en download manual jsp Installation files are also available on the Models 707B and 708B Product Information CD ROM that came with your instrument Install the J2SE software The ActiveX control and Java applets are installed from the instrument but depending on the browser security settings they may require the users permission to be downloaded and installed To connect to the instrument web interface you must have an LAN connection from the computer to the instrument See LAN communications in the Model 707B and 708B Reference Manual Follow the instructions under the heading LAN quick start An alternative to the LXI Discovery Tool is to follow the instructions below to connect to the instrument 1 Confirm the LAN light on the instrument is illuminated Section 3 Using the web interface Models 707B and 708B Switching Matrix User s Manual 2 Open an Internet browser such as Windows Internet Explorer v6 0 or hi
16. s slots the crosspoint display shows No card in unit Figure 7 Model 707B crosspoint display SLOT 1 SLOT 2 SLOT 3 SLOT 4 SLOT 5 SLOT 6 The crosspoint display has a list of slots on the right To the left of the slot list are lights that show you an overview of the cards in the instrument s slots Figure 8 Model 707B slot indicators Red lights are lit SLOT 1 if a channel is closed in that slot SLOT2 SLOT 3 Yellow lights are lit when Sera the slot contains a card The bright light shows SLOTS which slot is displayed stone on the crosspoint display 707B 900 01 Rev A August 2010 2 9 Section 2 Using the front panel interface Models 707B and 708B Switching Matrix User s Manual In the figure above there are cards in five slots no card in slot 5 and the channels for the card in slot 3 are displayed on the crosspoint display Also at least one channel is closed on the card in slot 2 Selecting and closing channels using the crosspoint display From the front panel you can change the display to show another card slot choose a specific channel and open and close channels For the Model 707B the crosspoint display shows you the status of the channels for one card at a time To display a different slot Turn the navigation wheel to the right to go to the next slot or to the left to go to the previous slot Exercise Select crosspoint on slot 2 row C column 3 To select the crosspoint th
17. staircase sweep Enable the source action during the sweep Configure sweep voltage measurements Enable voltage measurements Set trigger count to number of steps in the sweep Set arm count to number of sweeps to perform To run the test send the following commands to the corresponding instrument 707B 900 01 Rev A August 2010 Example program code to run the test Model 2635A 707B or 708B 2635A 707B or 708B 2635A 707B or 708B 2635A Model 707B or 708B 2635A 707B or 708B 2635A 707B or 708B 2635A 707B or 708B 2635A Code smua source output channel exclusiveclose matrixChannels 1 smua trigger initiate waitcomplete channel exclusiveclose matrixChannels 2 smua trigger initiate waitcomplete channel exclusiveclose matrixChannels 3 smua trigger initiate waitcomplete channel exclusiveclose matrixChannels 4 smua trigger initiate waitcomplete channel exclusiveclose matrixChannels 5 smua trigger initiate waitcomplete channel exclusiveclose matrixChannels 6 smua trigger initiate waitcomplete smua source output 0 channel open allslots pirimbbut ter i sma myo fier lm smua nvbufferl readings Notes and comments Turn on the Model 2635A output Connect first diode Initiate sweep Wait until sweep is complete Connect second diode Initiate sweep Wait until sweep is complete Connect third di
18. the closed channel list and the user screen text which is set with display settext When the closed channel listing is displayed if the list of channels is longer than one screen you can use the navigation wheel to scroll though the list of closed channels The CONFIG key accesses attribute menus in which you can configure channels and scans CONFIG and then CHAN opens the Channel Attribute Menu CONFIG and then SCAN opens the Scan Attribute Menu The top row of keys under the display allows you to open and close channels work with scan lists and load and run scripts Figure 3 Models 707B and 708B top row of keys Key descriptions Key Description OPEN ALL Opens all closed channels STEP If a scan list has been defined press STEP to step through the list Each press is one scan step See Working with scan lists from the front panel Opens the selected channel or channel pattern Closes the selected channel or channel pattern Loads code or scripts that can be run from the front panel Runs the last code or script selected through the LOAD key Appends the selected channel or channel pattern to the scan list Deletes the first occurrence of the selected channel or channel pattern from the scan list The bottom row of keys allow you access menus and set up channels patterns cards scans triggers and general instrument operation Figure 4 Bottom row of keys 2 4 707B 900 01 Rev A August 2010 Mode
19. to perform simple and complex tasks with less interaction with the remote interface controller the controlling computer For more information on using scripts please see Instrument Programming in the Models 707B and 708B Reference Manual Set up communication In this example in addition to the TSP Link interface serving as a communication bus it will also serve as triggering bus to enable hardware handshaking between the System SourceMeter instrument and Model 707B or 708B The communication setup is identical to the setup in Example 2 see Set up communication on page 5 8 There are three digital lines in the TSP Link cable that may be used for triggering This example uses trigger lines 1 and 2 The Model 707B or 708B outputs a trigger signal on TSP Link line 1 and waits for a trigger signal on TSP Link line 2 before proceeding with the next set of crosspoint closures The System SourceMeter instrument outputs a trigger signal on TSP Link line 2 after completing its test and waits for a trigger signal on TSP Link line 1 before testing The triggering setup is illustrated in the figure below 9 12 707B 900 01 Rev A August 2010 M odels 707B and 708B Switching Matrix User s Manual Section 5 Working with the Series 2600A Figure 31 TSP Link interface Model 2635A System SourceMeter Model 707B or 708B System Switch Instrument TSP Link Interface Communication lines Trigger line 1 Perform l V sweep crosspoin
20. to include in the pattern are not set to forbidden to close When naming the channel pattern be aware e The first character of the name must be alphabetic upper or lower case e Names are case sensitive e Pattern names must be different than row column and channel labels Exercise Create channel pattern TESTO1 from closed channels To create channel pattern TESTO1 from channels currently closed 1 Close the channels you want to include in the channel pattern For this example close channels 1A01 1B02 and 1C03 Refer to Selecting and closing a channel from the front panel on page 2 7 for instructions on how to close individual channels Press the PATT key From this menu select the CREATE menu item From this menu select the SNAPSHOT menu item pr doc pe At the prompt enter a pattern name using the navigation wheel For this example enter the name TEST01 Use the navigation wheel to select each character of the name o Use the ENTER key to apply the selection Use the EXIT key to leave the menu NOTE Refer to Channel patterns in the Models 707B and 708B Reference Manual for more details Performing close and open operations on channel patterns A WARNING Careless channel pattern operation could create an electric shock hazard that could result in severe injury or death Improper operation can also cause damage to the switching cards and external circuitry The control of multiple channels using
21. za 7 m o o 2 LINE FUSE LINE RATING SLOWBLO 100 240VAC 3 15A 250V 50 60Hz e 240VA MAX e HO DIGITAL I O Model 7072 IEEE 488 LAN 8x12 Switch Matrix Card Lj Mounting l screw CAUTION rFOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE FUSE WITH QE TYPE AND RATING J Columns EAN Rows 2 4 tele A Low current rows B cQ Model 7078 TRX DO Triax Cable Assembly A Carrying OF handle EQ Setup Notes FO 1 This drawing illustrates connections to the Model 7072 8x12 Ore Switch Matrix Card Connections to other cards supported by the G NUS CV 70xB System Switch are similar BENG 2 All triaxial connections for both the Sourcemeter instrument and the diodes are made to the center conductor pin of the triaxial connector Mounting screw Logical block diagram of test connections The following figure shows the logical block diagram of the test connections 707B 900 01 Rev A August 2010 5 3 Section 5 Working with the Series 2600A Models 707B and 708B Switching Matrix User s Manual Figure 28 Logical block diagram of test connections 2635A HI 2635A LO Example 1 Control with separate interfaces Controlling Series 2600A and Model 707B or 708B instruments using separate communication interfaces To run thi
22. 10 Models 707B and 708B Switching Matrix User s Manual Section 3 Using the web interface 3 Enter the password the default is admin Figure 12 Enter password Keithley Series T xB Login Password essee I Login Cancel 4 Click Login Me The default password is admin If the password has been changed it is available from the front panel of the instrument Press MENU LAN STATUS PASSWORD Card pages The card pages are interactive pages where you can work with channels in each slot To open a card page on the left navigation click the slot number There is a specific page for each card installed in the mainframe This page displays a grid that shows the relay configuration of the switch card 707B 900 01 Rev A August 2010 3 3 Section 3 Using the web interface Models 707B and 708B Switching Matrix User s Manual 3 4 Figure 13 Web interface Cards page Slot 1 7072 7072 8x12 Semi Matrix Open and close channels from the card pages You can open and close channels from the card pages in several ways The simplest method is to click a connection The channel changes state to open or closed When the channel is open the connection is a circle with an x in it Figure 14 Web interface open channel m When the channel is closed the connection is black Figure 15 Web interface closed channel 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix Us
23. 2 tsplink TRIG FALLING tsplink trigger 2 mode 2 tsplink TRIG FALLING node 2 tsplink trigger 1 clear node 2 tsplink trigger 2 clear node 2 smua trigger arm stimulus nodel2 l tsplink ersqu ecu MN EVENT ID nodel2l tsoplink trigger 2 stimulus node 2 smua trigger SWEEP COMPLETE EVENT ID end function runDiodeTest xptTable configSwitch configSMU node 2 s8mua source outputi 1 node 2 smua trigger initiate 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 5 Working with the Series 2600A Configure sweep voltage measurements Enable voltage measurements during the sweep Set trigger count to the number of steps in the sweep Set arm count to six the total number of sweeps that will be run for all diodes Set TSP Link trigger lines 1 and 2 to send and receive falling edge trigger signals Clear any latched triggers on TSP Link trigger lines 1 and 2 Configure sweep to start when signal received on TSP Link line 1 Configure System SourceMeter to output trigger signal on TSP Link line 2 when sweep is complete This function sequences the crosspoint closures and triggering Call the function to configure the switch storing the result in the variable xptTable Call function to configure the SMU and turn on its output Initiate the System SourceMeter so that it is ready to sweep once a trigger signal is received the output
24. 2600A Models 707B and 708B Switching Matrix User s Manual Example 3 shows you how to use the TSP Link interface and interactive triggering with Series 2600A and Model 707B or 708B instruments This example e Can be run using TSB Embedded e Demonstrates how to create load and execute a TSP script that includes functions e Demonstrates how to use the functions in the script to run the test e Demonstrates the benefit of using TSP scripts to run the test independently of computer control after initiating a test to run e Uses the TSP Link interface for communication and interactive hardware triggering e Does not use the scanning and triggering model of the Model 707B or 708B Example 4 shows you how to use the scanning and triggering model of the Model 707B or 708B with the SourceMeter instrument This example e Can be run using TSB Embedded e Demonstrates how to create load and execute a TSP script that includes functions and how to use those functions to run the test e Demonstrates the benefit of using TSP scripts to run the test independently of computer control after initiating a test to run e Uses the TSP Link interface for communication and interactive hardware triggering e Demonstrates how to use the scanning and triggering model to achieve hardware synchronization during a test e lllustrates the speed advantage of preconfiguring the sequence of crosspoints used during the test e Includes instructions on how
25. ANY OF ITS EMPLOYEES SHALL BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF ITS INSTRUMENTS AND SOFTWARE EVEN IF KEITHLEY INSTRUMENTS INC HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES SUCH EXCLUDED DAMAGES SHALL INCLUDE BUT ARE NOT LIMITED TO COST OF REMOVAL AND INSTALLATION LOSSES SUSTAINED AS THE RESULT OF INJURY TO ANY PERSON OR DAMAGE TO PROPERTY KEI I HLEY A GREATER MEASURE OF CONFIDENCE Keithley Instruments Inc Corporate Headquarters 28775 Aurora Road Cleveland Ohio 44139 440 248 0400 Fax 440 248 6168 1 888 KEITHLEY 1 888 534 8453 www keithley com 11 07 Specifications are subject to change without notice All Keithley trademarks and trade names are the property of Keithley Instruments Inc All other trademarks and trade names are the property of their respective companies KEITHLEY A GREAT ER MEAS URE QT CONFIDENCE Keithley Instruments Inc Corporate Headquarters 28775 Aurora Road Cleveland Ohio 44139 440 248 0400 Fax 440 248 6168 1 888 KEITHLEY www keithley com 12 06
26. B02 1403 BOS 1405 1B06 1A407 1B08 1409 1B10 WAI D 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 6 Working with the Series 2400 Overview of running the test The Model 707B or 708B closes the crosspoints necessary to connect the SourceMeter to each diode under test one at a time The SourceMeter then performs an l V sweep on each diode This process continues until all six diodes are tested Example code to run the test To run the test send the following commands to the corresponding instrument Example program code to run the test Model Code 2400 OUTP ON 2400 707B or 708B run70xForScan crossptTable TRAC DATA 707B 900 01 Rev A August 2010 Notes and comments Turn on the output of the SourceMeter Instrument Initiate the sweep After processing this command the Model 2400 waits for a trigger from the Model 707B or 708B Call the function that executes the sequence of crosspoints and generates hardware trigger signals to trigger sweeps on the SMU After the test is complete send this command to retrieve the data from the Model 2400 Retrieve the data from the Model 2400 after sending TRAC DATA 6 9 Section 7 Troubleshooting FAQs In this section About this section uci dU sep edt serecaneccacealsccdeadeniece 1 1 Need different line frequency or voltage 7 1 Model 4200 SCS does not recognize switch matrix
27. Click Enter to send the command Figure 24 Enter command in Console box C cn menle channel Openi alls lora Enter en 4 To open all channels enter channel open allslots in the Console box Click Enter to send the command 6 Toresend a command click the drop down arrow on the left side of the Console box Figure 25 Model 707B or 708B web interface console print memory used History int memory availsmble print xenory available SREP EE TSF gt print penory available i Bo 51 98 66 99 94 ISP print nmenmary used 10 50 1 14 0 06 TSF gt More information about commands to control the instrument can be found in the Models 707B and 708B Reference Manual 3 14 707B 900 01 Rev A August 2010 Section 4 Working with the Model 4200 SCS In this section Mie all Cal e MM TT A PE E erent rt T 4 1 Equipment required to run the example 4 1 Configure Model 707B or 708B for Model 4200 SCS 4 1 Add Model 707B or 708B to Model 4200 SCS 4 2 BEEE E E NR EI te ase aes A A 4 3 Introduction You can connect the Model 4200 Semiconductor Characterization System to a Model 707B or 708B This enables the Model 4200 SCS to automate measurements to multiple devices for DC CV and pulsed l V characterization This section describes e How to configure the Model 707B or 708B for use with the Model 4200 SCS e How to add the Model 707B or 708B to
28. ER UPS nEXU URAR EAM ERES 6 1 About the Series 2400 examples so ust Esp re aoo a dra rhet euo DU tm uu E va attt ir ehe es Eae Sacha Reds 6 1 Equipment required to ran the amp XalTIDIBS iactis Pe biov e Yero Pn tre taberna Neb IRA Er re var Ea Ped 6 1 Connect iNe counne RT RUN 6 1 Logical block diagram of test connections cite cscs sica oe ttt ntt tid ie xe iden se e niae rris 6 2 Example 1 Individual commands for SWitCh ME SULE cccceececeeeceeaeeeeseeeeeeeeesaeeessaeees 6 3 Example program code for the Model 2400 ccccccccccceececeseeceeceseeeeseececeasesseesseeeseneessaees 6 3 Example program code for the Model 707B or 708B ccccccceeccceeeeeceeeeceeeessaeeeseeeeseneesaaees 6 4 Example 2 Digital I O triggering for switch measure synchronization 6 5 i 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Table of Contents Example program code for the Model 2400 ccccccccccssececeseeceeeseeeeeseeeesesesseeeseeeseneesaaees 6 5 Example program code for the Model 707B or 708B cccccccecccceeeeeceeeeceeeeseeeeseeeeseneetaaees 6 6 Overview of running Me Rm 6 9 Example code to run asc cre a ae wi ce setts ois ae T 6 9 Troubleshooting FAQS cccccsseecesseeceeeseeeeeseeeseeseeeeeeseesaaessoaseeeseeseeseeaseseaneessneaeesees 7 1 OP OU sepa crc eres ce E DO mS 7 1 Need different line frequency or voltage rtt ort t
29. IEC Standard IEC 60664 Most measurement control and data I O signals are Measurement Category and must not be directly connected to mains voltage or to voltage sources with high transient over voltages Measurement Category ll connections require protection for high transient over voltages often associated with local AC mains connections Assume all measurement control and data I O connections are for connection to Category sources unless otherwise marked or described in the user documentation 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 Operators of this product must be protected from electric shock at all times The responsible body must ensure that operators are prevented access and or insulated from every connection point In some cases connections must be exposed to potential human contact Product operators in these circumstances must be trained to protect themselves from the risk of electric shock the circuit is capable of operating at or above 1000V no conductive part of the circuit may be exposed f Do not connect switching cards directly to unlimited power circuits They are intende
30. M is not displayed control is through the front panel Figure 5 Display during operation Remote control Slot and row indicator Column Closed channels lt none gt if no channels are closed By default the top line of the display shows the slot row and column of the selected channel Channel identification The channels on the cards that you can use with the Model 707B or 708B are referred to by a channel specifier The specifier is used to identify channels for use with close and open operations scans and channel patterns using the front panel web or remote command interface A channel specifier is a four or five digit alphanumeric sequence The first digit is always the slot number of the card in the mainframe The remaining digits vary depending on the type of card Channel types The Models 707B and 708B support matrix cards The documentation for your specific card model lists the available channels Specify multiple channels using lists Lists build on the individual channel specifier 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 2 Using the front panel interface Channel identifiers The channels on the matrix cards are referred to by their slot bank row and column numbers e Slot number The number of the slot in which the card is installed e Bank The bank number if used by your card See your card documentation e Row number The row number is either 1
31. SB Embedded see the help located on the instrument s web page Exercise Create and run a script with TSB Embedded This exercise script assigns row and column labels for the card installed in slot 1 It then commands the Model 707B or 708B to close a crosspoint specified by the row and column labels To create and run a script with TSB Embedded 1 From the navigation area on the left side of the web interface select TSB Embedded The TSB Embedded page is displayed 707B 900 01 Rev A August 2010 3 11 Section 3 Using the web interface Models 707B and 708B Switching Matrix User s Manual User Sucripis H WF aua F wid oe ge pe r Cards DP autoarec baa Gat Lala Glee Tors chan Taye E channel Siet I TOTI ehannelconcig fot X T073 Chant ana Set 4 T173 datgmipueum mid Sint E TD 72 Scan Builder adrigimnal labal zat ard el labale claar labels for qeq d MI636 LED Test Erich LED Tert pr Harnad fran le TF nanuailzanplal oF Original M auch 7C Run Diete n ii z E L n E E E E H z E E E n E zi E 5 Figure 21 Select TSB Embedded TSP Scr ipit Expo te PC mpri trom re 1 Shuai L Com FL glam ckhuamnelLisae PETE column and row Ui crest arid Prisc arai display gat Lartik event 1ogC reas An hiret ion Clas Lad Cipres L inet urgeri Capui 2 You must log in to the instrument to use TSB Embedded After logging in you can access the option
32. a nvbuffer1 node 2 smua trigger measure action node 2 smua ENABLE nodel2 smua trigger count 11 node 2 smua trigger arm count 1 Example code to run the test Section 5 Working with the Series 2600A Models 707B and 708B Switching Matrix User s Manual Notes and comments Reset TSP Link Reset Model 707B or 708B Clear errors Define table that details crosspoints to close to connect each diode to the SMU Add entries to the table Reset the instrument Clear all errors and reset status bits Clear existing data from data buffer Set source function to current source Set source current range to 10 mA Set voltage measurement range to 6 V Set integration rate Enable buffer append mode Set the voltage compliance during the sweep Configure linear staircase sweep Enable the source action during the sweep Configure sweep voltage measurements Enable voltage measurements during the sweep Set trigger count to the number of steps in the sweep Set arm count to the number of sweeps to perform each time the sweep is initiated To run the test send the following commands to the Model 707B or 708B 707B 900 01 Rev A August 2010 Example program code to run the test Code node 2 smua source output channel exclusiveclose matrixChannels 1 node 2 smua trigger initiate waitcomplete channel exclusiveclose matrixChannels 2 node 2 smua trigger initiate waitcomplet
33. a Model 4200 SCS e Where to look for more information Equipment required to run the example To run this test you will need the following equipment e One Model 4200 SCS instrument e GPIB cable to connect the Model 707B or 708B to the Model 4200 e Model 707B or 708B and associated switch cards Configure Model 707B or 708B for Model 4200 SCS To use the Model 707B or 708B with the Model 4200 SCS first configure the Model 707B or 708B to use compatible Model 707A commands 1 Press MENU 2 Select DDC Section 4 Working with the Model 4200 SCS Models 707B and 708B Switching Matrix User s Manual 3 Select ENABLE 4 Select 70xA VERSION The instrument displays the message Must Power Cycle for DDC to enable Figure 26 Front panel DDC enable menu 5 Press ENTER 6 Cycle power to the instrument ae When DDC mode is enabled 70xA VERSION OR 70xB VERSION the Model 707B or 708B sends a different identification string in response to the IDN query With DDC mode enabled the response of the 707B to IDN is 707A03 With DDC mode disabled OFF the response to IDN is KEITHLEY INSTRUMENTS INC MODEL 707B serial i firmware rev Add Model 707B or 708B to Model 4200 SCS To add the Model 707B or 708B to the Model 4200 SCS 1 Connect the Model 707B or 708B to the GPIB controller on the Model 4200 2 Ensure that the Model 707B or 708B has a GPIB address that is different than any
34. ace Models 707B and 708B Switching Matrix User s Manual 2 You must log into the instrument to work with the channels See Log in to the instrument on page 3 2 After logging in you can access the channel controls 3 To close channel 1A01 click the channel Figure 17 Close a channel pd gm FF DU Qaam MM a D 2 St E TT ETa ee i T 4 To perform an exclusive close on channel 1A02 select Exclusive Slot Close in the Channel Action Type box Figure 18 Select exclusive slot close Channel Action Type 3 Channel Clase 3 Exclusive Clase Exclusive Slot Close 5 Click 1A02 to close that channel and open all other channels Figure 19 Close a channel with exclusive close 1403 H4 1503 Set up channel patterns from the web interface You can use channel patterns as a convenient way to refer to a group of switching channels with a single alphanumeric name When you perform close or open operations on a channel pattern only the channels that are in the channel pattern are affected There is no speed advantage in performing close and open operations on channel patterns compared to performing the same operations on individual channels or a list of channels 3 6 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 3 Using the web interface Exercise Create channel pattern TEST02 using the Snapshot feature To create a channel pattern TEST02
35. alling the function that configures the instruments and sequences their actions To retrieve data from the System SourceMeter instrument through TSP Link use the printbuffer command to print the data to the computer communication interface An example is shown below Example Retrieve buffer data Code Notes and comments printbufter l node 2 l smua nvbutrerl n Print all readings from the SMU data buffer Note that readings is a buffer attribute node 2 smua nvbufferl readings 5 16 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 5 Working with the Series 2600A Example 4 Using the scanning and triggering model This example demonstrates how to use the scanning and triggering model of the Model 707B or 708B to maximize the speed of the test by preconfiguring the sequence of crosspoints used This example uses a TSP script to configure the instruments for testing Once the instruments are configured the Model 707B or 708B internally manages all close and open actions as well as any triggering signals to interface with the System SourceMeter instrument No separate script is required to sequence these actions As with the previous examples a full l V sweep is performed on each of the six diodes Data from these tests is available from the System SourceMeter instrument after all tests have been completed Set up communication In this example in addition to the TSP Link i
36. an also use triggers without the triggering model to set up a scan to meet the needs of a specific application that does not fit the triggering model Me If you use Scan Builder to create a scan use the options in the Scan Builder to run the scan Using the TSB Embedded page may not give you the expected results 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 3 Using the web interface Create a scan list Before you can run a scan you must create a scan list A scan list is a set of steps that runs in order during a scan Each step contains a channel channels or channel patterns that you want to measure in that step Each step is acted on separately during the scan You can mix channel patterns and individual channels in a scan list Note that the steps are executed in the order in which they are added to the scan Me Before setting up a scan list make sure your channels and channel patterns are configured See Working with channels in the Models 707B and 708B Reference Manual for detail If you change the channel configurations or channel patterns after the scan list has been set up you may not see expected results If the change prevents the scan from functioning properly such as deleting something referenced by the scan an error message is logged Exercise Create a scan list from the web interface To create a scan list from the web interface In this exercise create a s
37. and close the crosspoint on slot 1 at row C and column 7 1 To change the present row press the navigation wheel The first two digits of the four digit channel specifier flash indicating edit mode Turn the navigation wheel change the digit to 1C 2 3 Press the navigation wheel This accepts the row selection and selects edit mode for the column The last two digits of the channel specifier flash indicating edit mode 4 Turn the navigation wheel to change the digits to 07 5 Press the navigation wheel C or ENTER to accept the channel exit edit mode and return to the main display 6 To e Open the channel Press OPEN e Close a channel without affecting any other channels Select CLOSE e Close a channel and open any other closed channels on the instrument Select CHAN and select EXCLOSE Press ENTER to close the selected channels e Close a channel and open any other closed channels on the slot that contains the selected channel Select CHAN and then select EXSLOTCLOSE Press ENTER to close the selected channels 2 8 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 2 Using the front panel interface Crosspoint display Model 707B only The crosspoint display on the front panel of the Model 707B displays information about the slots that contain cards and the open and closed state of the channels for one card slot at a time If there are no cards in the instrument
38. at is on slot 2 at row C and column 3 1 When you are displaying slot 2 press the navigation wheel The red lights for that slot are displayed 2 Turn the navigation wheel to go to row 2C 3 Press the navigation wheel to select the row The red lights for each crosspoint in the row are on as shown in the following figure Figure 9 One row selected SLOT 1 SLOT 2 SLOT 3 Me On the Model 707B if you scroll past the last row of any slot you will go to the next slot 2 10 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 2 Using the front panel interface 4 After choosing the row press the navigation wheel O A column of red lights is displayed 5 Turn the navigation wheel to go to column 03 Note that scrolling through the columns will not scroll through slots as scrolling through rows does 6 Press the navigation wheel or ENTER to select the column and row This channel is now displayed on the bottom display as 2C 03 7 To e Open the channel Press OPEN e Close a channel without affecting any other channels Select CLOSE e Close a channel and open any other closed channels on the instrument Select CHAN and select EXCLOSE Press ENTER to close the selected channels e Close a channel and open any other closed channels on the slot that contains the selected channel Select CHAN and then select EXSLOTCLOSE Press ENTER to close the select
39. can list containing channels 1A01 1B02 1C03 1D04 1E05 and pattern TESTO1 From the left navigation of the web interface home page select Scan Builder 2 Inthe Add Channel By list on the right select Number to add the channels Select the channel numbers 1A01 1B02 1C03 1D04 and 1E05 from the list You can use Ctrl click to select multiple channels and Shift click to select a range of channels To remove your selections from the Add Channel By list click Clear Channel Selection Click Add Step The channels are added to the Steps list 4 Inthe Add Channel By list on the right select Pattern to add channel pattern TESTO1 Select TESTO1 from the Channel Pattern List Click Add Step The pattern is added to the Steps list In the Scan Count box enter the number of times you want to repeat the steps in the scan For example enter 5 Run the scan You can run a scan in one of several ways e Background Runs the scan in the background so that you can perform other tasks while the scan is running You can use the Query State to check scan status e Step by Step Steps through the scan 707B 900 01 Rev A August 2010 3 9 Section 3 Using the web interface Models 707B and 708B Switching Matrix User s Manual To run the scan from the web interface Click Execute Background or Step by Step Stop the scan To stop the scan from the web interface On the Build amp Run tab click Abort Clear the scan list from t
40. channel patterns should be restricted to experienced test engineers who recognize the dangers associated with multiple channel closures 2 12 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 2 Using the front panel interface You can close and open channel patterns the same way you do for individual channels When you request a close or open operation the Model 707B or 708B verifies that the channels exist for a pattern but does not verify that the switch path connection is correct You must ensure the requested operation is safe for a channel pattern and that a good connection will result for your application with the channel pattern Exercise Close channel pattern TESTO1 from the front panel To close channel pattern TESTO1 from the front panel 1 Press the PATT key to display a channel pattern 2 Use the navigation wheel to select TESTO1 the channel pattern you want to close Model 707B only Note that when you select a pattern on the crosspoint display the lights for the channels included in the pattern are dimly lit 3 Perform any of the following actions e Open the channels in the channel pattern Press OPEN e Close the channels in the channel pattern without affecting any other channels Press CLOSE e Close the channels in the channel pattern and open any other closed channels on the instrument Select PATT and select EXCLOSE Press ENTER to open or close the channels
41. closing channels using the crosspoint display seeeeesesuessse 2 10 Viewing the close or open status of a channel eese 2 11 TU Ner M CREE ODORE 2 11 Piers loge Belg ts git lst h DANON aaa eee een ene ee earn nian ne ae net oU NEN eer an ee 2 12 Performing close and open operations on channel patterns cece cecccceececeeeeeeeeeeeneeeeees 2 12 Set up row column and channel labels cccecceeeeeseeeeeeeeeeeeeeseeteneeceeeeeeeteneeseeeeeneess 2 13 Exercise Create a row label for row D using the front panel sseeseseseseeeesess 2 14 Using the WeD Intel apB sies cnEx up EY R ES SSERU SIR LE SUMUS uE ZI Qn n E UNE P EM EPI REGINE 3 1 Tsdpeje Ure ile p RN ERE AR T TOUT 3 1 Connect to the instrument web interface cccccccsceceseeteseeceeeeseeeceneeteneeteueeseeeseeeeneeeeans 3 1 Web interface home 8 9 s MPPRERRE RT 3 2 Wegckresi dcl D QT Ttc 3 2 gos 6 i RHET 3 3 Open and close channels from the card pages cccccsecccseeeeceeeeceececeeeeseeeeeseeeeseueesseessaeeeees 3 4 Set up channel patterns from the web interface cccccccsecccceeeeceeeeceeeeseeeeececesseeessneeeseeeeseas 3 6 Be TETTE m tT OTT 3 8 dec E Uo RNC RR m UNE 3 9 Bul qi SC vce nc teense E DNE HAE MEI MIMERMEMIEHNE FEM MINUM PSI 3 9 lOp NE EC SIE ooi eoim ee ce ene MEME E MR eee emer eee 3 10 Clear the scan list from the web interface
42. computer verify that the computer is set to receive an IP address automatically When the computer and the Model 707B or 708B synchronize the green LED status light on the front panel of the instrument lights If you are using the manual configuration method over a corporate network verify that you have entered the IP address gateway and subnet mask provided by your network administrator If you are using the manual configuration method and a one to one connection with the computer verify that the subnet mask agrees with the computer s settings If the above suggestion do not work see Models 707B and 708B Reference Manual Communication interfaces 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 7 Troubleshooting FAQs Error when I try to close a channel The instrument generates an error when I try to close a channel What do I do If the instrument generates Error 1115 Parameter error no forbidden channels accepted make sure that the channel specifier is valid For more information on channel specifiers see Channel identifiers on page 2 7 If the specifier is correct the channel s forbidden attribute may be set to true To close the specified channel the forbidden attribute must be set to false To set the forbidden attribute to false using the front panel 1 Press CONFIG then CHAN 2 Select FORBID 3 Select NO To set the forbidden attribute to false using the web i
43. ctions are defined as e LABEL Sets the label that is displayed on the front panel for the specified crosspoint e LABEL ROW Sets the label that is displayed on the front panel for the specified row e LABEL COL Sets the label that is displayed on the front panel for the specified column Change the row label to SMU1 using the navigation wheel to change each character Press the navigation wheel or ENTER to save the change Press EXIT to return to the main display The bottom display will now use SMU1 to refer to row D on slot 1 For example selecting crosspoint 1D03 prints SMU1 03 to the bottom display Additionally the crosspoint display on the Model Tl O7B updates to use the new row label The exercise Create a script using TSB embedded shows setting up labels using the remote interface and TSB Embedded 707B 900 01 Rev A August 2010 section 3 Using the web interface In this section AES a lie lo 9 arse ree Y TUE TTD 3 1 Connect to the instrument web interface 3 1 Web interface home page sseeeeeeeeeeee 3 2 Log in to the INS WUME Mit E TRE 3 2 2 01 cic e NN 3 3 Scan Builder BAG oicrcceceicdcacsciccdnececcdsosseseeacceicseatenieia 3 8 TSBENMBOUOUSQ eo a ca seentescanbotreeentatartcaketenessecdancsaioes 3 11 Introduction The Model 707B or 708B web interface allows you to review instrument status control the instrument and upgrade the instrument
44. d 708B Reference Manual Using the web interface section and the Advanced triggering topic for other options 3 10 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 3 Using the web interface You can select the trigger to use to continue channel action for each scan The options to continue channel action are Immediate When immediate is selected the scan immediately steps to the next channel in the scan list This is the default setting Digital Input When selected you select a digital line 1 to 14 that is used to trigger the instrument to step to the next channel You can select falling or rising for the digital input Falling selects the falling edge trigger Rising selects the rising edge of the trigger Every N seconds This parameter adds a fixed delay between each channel The delay occurs before the next channel in the scan list is closed TSB Embedded TSB Embedded is an application that includes a command line interface that you can use to issue ICL commands It also offers script building functionality TSB Embedded resides in the instrument You can use TSB Embedded to run some of the application examples in Section 5 of this manual Working with the Series 2600A on page 5 1 Create a script using TSB Embedded NOTE If you are using TSB Embedded to create scripts you do not need to use the commands loadscript or loadandrunscript and endscript For information on using T
45. d 708B Switching Matrix User s Manual Section 6 Working with the Series 2400 Figure 32 Test system block diagram d 2 3 4 5 6 7 8 olaola la 2400 HI 2400LO e D E F G H Example 1 Individual commands for switch measure In this example individual commands are sent to the Model 707B or 708B and SourceMeter Instrument to perform switch closure and measure actions Example program code for the Model 2400 NOTIE TSB and TSB Embedded cannot be used to control the Model 2400 SourceMeter instrument You are expected to send commands to the Model 2400 using a separate application development environment such as Microsoft Visual Studio or National Instruments LabVIEW send the following commands to configure the Model 2400 SourceMeter Instrument 707B 900 01 Rev A August 2010 6 3 Section 6 Working with the Series 2400 Models 707B and 708B Switching Matrix User s Manual 6 4 Example program code for the Model 2400 SourceMeter Instrument Code ROT POOS FORM SOUR SOUR SOUR SOUR SOUR SOUR SENS SENS SENS ELEM VOLT CURR FUNC CURR CURR MODE SWE CURR STAR 0 CURR STOP L0E 3 CURR STEP 1e 3 SWE SPAC LIN VOLT PROT 10 SENS VOLT RANG 5 VOLT NPLC 1 FUNC VOLT ARM COUN 1 TRIG COUN 11 Notes and comments Reset the instrument Clear all errors and reset status bits Format return data string to return current and voltage values
46. d to be used with impedance limited 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 ensure that 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 input power disconnect device must be provided in close proximity 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 system and discharge any capacitors before connecting or disconnecting cables or jumpers installing or removing switching cards or making internal changes such as installing 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 withstanding 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
47. e channel exclusiveclose matrixChannels 3 node 2 smua trigger initiate waitcomplete channel exclusiveclose matrixChannels 4 node 2 smua trigger initiate waitcomplete channel exclusiveclose matrixChannels 5 node 2 smua trigger initiate waitcomplete channel exclusiveclose matrixChannels 6 node 2 smua trigger initiate waitcomplete smua source output channel open allslots Notes and comments Turn on the output of the Model 2635A Connect first diode Initiate sweep Both instruments wait until sweep is complete Connect second diode Initiate sweep Both instruments wait until sweep is complete Connect third diode Initiate sweep Both instruments wait until sweep is complete Connect fourth diode Initiate sweep Both instruments wait until sweep is complete Connect fifth diode Initiate sweep Both instruments wait until sweep is complete Connect sixth diode Initiate sweep Models 707B and 708B Switching Matrix User s Manual Section 5 Working with the Series 2600A Both instruments wait until the sweep is complete The SMU output is turned off Open all crosspoints To retrieve data from the System SourceMeter instrument through the TSP Link interface use the printbuffer command to print the data to the computer communication interface An example is shown below Example Retrieve buffer data Code Notes and comments Pri
48. e native commands for the Model 707B or 708B please refer to the Migrating from Models 707A and 708A topic in the Features and Functions section of the Model 707B or 708B Reference Manual If you would like to use existing software that ran with the Model 707A or 708A without modification please refer to Using Model 707A or 708A Compatibility Mode in the Model 707B or 708B Reference Manual 2 2400 6 1 2600 5 1 4 4200 4 1 T 707B 708B Quick Start Guide 1 2 A applications 1 1 C CD ROM 1 2 channel designations 2 6 patterns 2 11 channel patterns 2 11 configuration CONFIG key 2 4 crosspoint 2 9 D Display DISPLAY key 2 4 Model 707B front panel 2 2 Model 708B front panel 2 2 Index documentation 1 2 F front panel display 2 4 2 5 2 9 interface 2 1 introduction 2 1 keys 2 3 2 4 Model 707B front panel 2 2 Model 708B front panel 2 2 H hot switching 1 1 I O layer 1 2 IVI drivers 1 2 J J2SE Runtime Environment 1 2 K keys DISPLAY 2 4 L LabVIEW drivers 1 2 M matrix card notation 2 7 Index Models 707B and 708B Switching Matrix User s Manual N navigation wheel 2 3 P POWER switch 2 3 precautions 1 1 S safety precautions 1 1 T Test Script Builder 1 2 Index 2 707B 900 01 Rev A August 2010 Warranty Keithley Instruments Inc warrants this product to be free from defects in material and workmanship for a per
49. e t Fu kien sen vn e us 1 1 Model 4200 SCS does not recognize switch matrix cccssscecceeeeeecseseeeceeeeeesseseeessaeees 7 1 A model software does not run on B models cceeeeeeeeceeeeeeeeceeeeeeeeeeaeeeeeeesaneeeeeeaas 7 3 Matrix Ready and External Trigger lines essere eren 1 3 Switch matrix does not recognize MY card ccccesccccsseeeeceeseeecseseeecseeeeessaseecsaneeesseaseeenes 7 3 Instrument s internal web page is not ACCESSIDIC cccccceccsesecceeseeceeeeeceeeeeseueeenueeenees 7 4 Error when try to close a channel wxcasiecsecapasacssesrmeduneciswndiavansiad dsu Pinar rudis eru pues EAS S Sdn 1 5 Switch relays will not close llseeeesseseseseeeeeee eene nnne nennen nennen nnn nnn nnn 7 5 Save the present state of the instrument 0c ecccceececceececeeeeeseeeeesseeeseaeeesaaeeseeeeeseneeees 7 5 LabVIEW driver for the Model 70 7 or 7 08D einissidvesermnweperenienncieanice nearness 7 6 ALERA 0 e een eee eee ee E EPE EE eee eee ees 8 1 DU esas stewie SERIES TET Index 1 707B 900 01 Rev A August 2010 iii Section 1 Introduction In this section Introduction to this manual ii onere scendvesSecdceee tees 1 1 Models 707B and 708B applications 1 1 CD ROM contents c ccccececececececececececececececerenens 1 2 Introduction to this manual The purpose of this manual is to pro
50. e the Model 707B or 708B and System SourceMeter Instrument shown below is identical to the code used in Example 1 However in this example all commands are sent to the Model 707B or 708B This example can be run using TSB Embedded Commands for the Model 2635 System SourceMeter have the TSP Link node number appended to the beginning of the command node 2 In the following table the Model 707B or 708B sends the commands in the shaded rows to the System SourceMeter instrument through the TSP Link interface Commands in unshaded rows are executed by the Model 707B or 708B 707B 900 01 Rev A August 2010 5 9 Example program code for the Model 707B or 708B Code tsplink reset localnode reset errorqueue clear matrixChannels 1A01 1B02 1A03 1B04 1A05 1B06 1A07 1B08 1A09 1B10 NIALL IBLAZ matrixChannels matrixChannels matrixChannels matrixChannels matrixChannels 2 2 3 4 5 6 matrixChannels node 2 reset node 2 errorqueue clear node 2 smua nvbufferl clear node 2 smua source func node 2 smua OUTPUT DCAMPS node 2 smua source rangei 0 01 node 2 smua measure rangev 6 node 2 smua measure nplc 1 node 2 smua nvbufferl appendmode node 2 smua trigger source limitv 10 node 2 smua trigger source lineari CO oe On aay node 2 smua trigger source action node 2 smua ENABLE node 2 smua trigger measure v node 2 smu
51. ed channels Viewing the close or open status of a channel Closed channels are shown separated by commas after the CLS characters on the display of the instrument If no channels are closed none is displayed here If the list of closed channels extends past one screen is displayed at the end of the line Press DISPLAY to display the full list of closed channels Use the navigation wheel to scroll through the list After viewing the list press DISPLAY twice to return to the main display Figure 10 Multiple closed channels Channel patterns You can use channel patterns as a convenient way to refer to a group of switching channels with a single alphanumeric name When you perform close or open operations on a channel pattern only the channels that are in the channel pattern are affected There is no speed advantage in performing close and open operations on channel patterns compared to performing the same operations on individual channels or a list of channels 707B 900 01 Rev A August 2010 2 11 Section 2 Using the front panel interface Models 707B and 708B Switching Matrix User s Manual Create a channel pattern When you create a channel pattern make sure to e Include all of the channels that are needed for that channel pattern e Check that channels contained in the pattern are correct e Check that channels contained in the pattern create the desired path connection e Make sure that channels that you want
52. ei 0 01 measure rangev 6 measure nplc 1 nvbuffer1 appendmode 1 trigger source limitv 10 trigger source lineari O 0 01 11 trigger source action node 2 smua ENABLE 5 14 Notes and comments Create a script diodeTest to contain test configuration and execution instructions Create a function to configure the Model 707B or 708B Reset TSP Link Reset Model 707B or 708B Clear errors Define table that details crosspoints to close to connect each diode to the SMU Add entries to the table Set TSP Link lines 1 and 2 to send and receive falling edge triggers Clear any latched triggers on TSP Link trigger lines 1 and 2 Return the table as an output of the function Create a function to configure the System SourceMeter instrument Reset the instrument Clear all errors and reset status bits Clear existing data from data buffer Set source function to current source Set source current range to 10 mA Set voltage measurement range to 6 V Set integration rate Enable buffer append mode Set voltage compliance during sweep Configure linear staircase sweep Enable the source action during the sweep 707B 900 01 Rev A August 2010 node 2 smua trigger measure v node 2 smua nvbuffe r1 node 2 smua trigger measure action node 2 smua ENABLE nodel2 sm ua trigger count T1 node 2 smua trigger arm count 6 tsplink trigger 1 mode
53. er s Manual Section 3 Using the web interface To specify the type of close select a Channel Action Type from the box in the upper right before closing a channel The options are e Channel Close Close the selected channel without affecting the state of any other channels e Exclusive Slot Close Close the selected channel and open any closed channels in the same slot e Exclusive Close Close the selected channel and open any closed channels in the instrument the only closed channel is the selected channel You can open all channels in a slot by clicking Open Slot You can open all channels in the instrument by clicking Open All For more information on opening and closing channels see Working with channels in the Models 707B and 708B Reference Manual Exercise Close multiple channels using the web interface This exercise describes how to close channels and channel patterns using the web interface To close multiple channels using the web interface 1 The instrument home page is displayed From the navigation on the left select the slot that contains the channels you want to close Figure 16 Select the slot oe Keithley Series 70xB Cards Slot 1 7072 Instrument Model Slot tu Manufacturer Slot 3 7073 senal Humber Slot 47173 Slot 5 7174 Switch Cards Slot 6 7072 m Firmware Revwsion Scan Builder TSB Embedded TCP Raw Socket 707B 900 01 Rev A August 2010 3 5 Section 3 Using the web interf
54. es that demonstrate the basic interaction of the Model 707B or 708B with a Model 2400 SourceMeter Instrument One of the examples also shows how to use digital I O triggering to synchronize source and measure actions between the Model 707B or 708B and the SourceMeter instrument The concepts in these examples can be applied when using the Model 707B or 708B with other SCPI based instruments TSB Embedded cannot be used to program the Model 2400 SourceMeter Instrument it cannot be used for these examples Equipment required to run the examples To run this test you will need the following equipment Six diodes with triaxial connections One Model 707B or 708B One switch matrix card Model 7174A 7072 or 7072 HV You can also use the Model 7173 50 if you convert the connection to coaxial instead of triaxial One Model 2400 SourceMeter instrument or equivalent source measurement unit SMU Example 2 only One Model 2600 TLINK trigger link to digital I O cable assembly Two Model 237 BAN 3A banana jack to triaxial cable assemblies Connect the equipment To run the test make the connections as shown in the figure below Note that all triax connections for the SourceMeter Instrument and the diodes are made to the center conductor pin of the triaxial connector Section 6 Working with the Series 2400 Models 707B and 708B Switching Matrix User s Manual NOTE This drawing shows connections to the Model 7072 8x12 Switch Card However
55. gher only 3 Inthe Address box enter the IP address of the instrument to find the IP address from the front panel of the instrument select MENU gt LAN gt STATUS gt IP ADDRESS The home page of the instrument web interface is displayed Web interface home page The home page of the instrument web interface gives you basic information about the instrument including e The model serial number firmware revision raw socket and LXI information e A list of slots and the switch cards installed in each slot e AnD button to help you locate the instrument Log in to the instrument The web interface has both interactive and read only pages These pages are always listed in the navigation panel on the left side of the web interface You can review information on any of the pages without logging in but to change information you must log in Pages that contain information you can change include a Login button You must be logged in to complete the exercises in this section Once you have logged in to one page of the web interface you do not need to log in again unless you reload the page To log into the instrument 1 Open a page that contains a Login button such as one of the Cards pages Scan Builder or TSB Embedded 2 Click Login The login dialog box is displayed Figure 11 Log in UU Pattern Channel Action Type Login Se er Lr a ey hy HL tu DELLI LEE 3 2 707B 900 01 Rev A August 20
56. he web interface Clearing the scan list deletes all channels and channel patterns from the scan list To clear the scan list from the web interface 1 From the left navigation area of the web interface home page select Scan Builder 2 Click Scan Clear Set up simple triggers You can set up triggers to control your scan using the options on the Simple Triggers tab You can set e The event that starts the scan e The time interval between scans e The time interval between channels To see these options click the Simple Trigger tab in the top left corner of the Scan Builder page Trigger to start a scan You can choose the triggers that will be used to start the scan The options to start the scan are Immediate When Immediate is selected the scan starts as soon as you click Execute Background on the Build amp Run tab Select Immediate when you do not have trigger requirements to start the scan This is the default selection Digital Input When selected you select a digital line 1 to 14 that is used to start a scan You can select falling or rising for the digital input Falling selects the falling edge trigger Rising selects the rising edge of the trigger Me If Other is displayed in the mode list a different mode other than falling or rising is already selected Other is not a mode and cannot be selected It is only an indicator that the digital triggering is already set up for a different mode See the Models 707B an
57. ication between the two instruments and commands for the SourceMeter on TSP Link node 2 are sent over the TSP Link interface Figure 30 GPIB and TSP Link connections Model 707B or 708B System Switch TSP Link Node 1 TSP Link Series 2600A SMU TSP Link Node 2 To configure the TSP Link communication interface each instrument must have a unique TSP Link node number Configure the node number for the Model 707B or 708B to 1 and the SourceMeter Instrument to 2 To set the TSP Link node number using the front panel interface of either instrument 1 Press MENU 2 Select TSPLink 3 Select NODE 4 Usethe navigation wheel to adjust the node number 5 Press ENTER to save the TSP Link node number On the Model 707B or 708B perform a TSP Link reset to alert the Model 707B or 708B to the presence of the SMU 1 Press MENU 2 Select TSPLink 3 Select RESET You can also perform a TSP Link reset from the remote command interface by sending tsplink reset to the Model 707B or 708B This command is also included in the example program code below for completion 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 5 Working with the Series 2600A Me If error 1205 is generated during the TSP link reset ensure that the Model 2635 System SourceMeter instrument has a unique TSP Link node number Example program code The example code to configur
58. ing in the user documentation explains dangers that might result in personal injury or death Always read the associated information very carefully before performing the indicated procedure The CAUTION heading in the user documentation 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 replacement 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 component 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 apply 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 a data
59. iod of one 1 year from date of shipment Keithley Instruments Inc warrants the following items for 90 days from the date of shipment probes cables software rechargeable batteries diskettes and documentation During the warranty period Keithley Instruments will at its option either repair or replace any product that proves to be defective To exercise this warranty write or call your local Keithley Instruments representative or contact Keithley Instruments headquarters in Cleveland Ohio You will be given prompt assistance and return instructions Send the product transportation prepaid to the indicated service facility Repairs will be made and the product returned transportation prepaid Repaired or replaced products are warranted for the balance of the original warranty period or at least 90 days Limitation of Warranty This warranty does not apply to defects resulting from product modification without Keithley Instruments express written consent or misuse of any product or part This warranty also does not apply to fuses software non rechargeable batteries damage from battery leakage or problems arising from normal wear or failure to follow instructions THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE THE REMEDIES PROVIDED HEREIN ARE BUYER S SOLE AND EXCLUSIVE REMEDIES NEITHER KEITHLEY INSTRUMENTS INC NOR
60. ions directly from a Model 707A or 708A with few changes e 70xB VERSION This options provides enhanced operation including error checking and more robust settling time operation Use this version if you are updating existing applications To enable Model 707A or 708A DDC compatibility mode 1 From the front panel select MENU 2 Select DDC 3 Select ENABLE 4 Select the version 5 Press ENTER Cycle instrument power Review Using Model 707A and 708A compatibility mode in the Models 707B and 708B Reference Manual for additional information Also see Migrating from Models 707A and 708A Matrix Ready and External Trigger lines Does this model have Matrix Ready and External Trigger lines Yes these signals appear on the digital I O connector For information on the digital I O capabilities refer to Controlling digital I O lines in the Model 707B or 708B Reference Manual If you wish to use a Model 707B or 708B in an existing Model 707A or 708A application please refer to Using Model 707A or 708A compatibility mode in the Model 707B or 708B Reference Manual Switch matrix does not recognize my card The Model 707B or 708B does not recognize my switch card What do do 707B 900 01 Rev A August 2010 1 3 Section 7 Troubleshooting FAQs Models 707B and 708B Switching Matrix User s Manual Card is not correctly seated in the slot Check the seating of the card IM aes ee om 6 Remove power from the instr
61. ipt of trigger on TSP Link line 2 Output trigger on TSP link line 1 after channel close action occurs Loop through scan list once End of the configSwitch function Create a function to configure the System SourceMeter instrument 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 5 Working with the Series 2600A end 707B 900 01 Rev node 2 reset node 2 errorqueue clear node 2 smua nvbufferl clear node 2 node 2 Source func OUTPUT DCAMPS Smua Smua node 2 smua source rangei 0 01 mode 2 smua measure rangey 6 node smua measure nplc 1 node 2 smua nvbuffer1 appendmode 1 node 2 smua trigger source limitv 10 node 2 smua trigger source lineari 0 0 01 11 node 2 smua trigger source action node 2 smua ENABLE node 2 smua trigger measure v node 2 smua nvbuf fer1 node 2 smua trigger measure action node 2 smua ENABLE mode 2 smua crigger coune 11 node 2 smua trigger arm count 6 node 2 tsplink trigger 1 mode node 2 tsplink TRIG_FALLING node 2 tsplink trigger 2 mode node 2 tsplink TRIG_FALLING node 2 tsplink trigger 1 clear node 2 tsplink trigger 2 clear node 2 smua trigger arm stimulus node 2 tsplink trigger 1 EVENT ID model2 esplank tergger 2 seimulus node 2 smua trigger SWEEP COMPLETE EVENT ID A August 2010 Reset the instrument Clear all er
62. itch matrix connection scheme settings for row column and instrument cards e Configuring switch card property configurations in KCON e Connecting the Model 4200 SCS instrument to the Model 707B or 708B e Accessing and using the user module library to control the switch matrix See Section 15 Multi Frequency C V measurements in the Model 4200 SCS Reference Manual which includes information on using the Model 4200 CVU card with a switch matrix To customize the switch user library of the Model 4200 SCS see the Models 707B and 708B Reference Manual Using Models 707A and 708A compatibility mode 707B 900 01 Rev A August 2010 4 3 Section 5 Working with the Series 2600A In this section About the Series 2600A examples 5 1 Equipment required to run the examples 5 2 Connect the equipment seeeseeeeeeeee 5 2 Logical block diagram of test connections 5 3 Example 1 Control with separate interfaces 5 4 Example 2 Using TSP Link to configure instruments 5 7 Example 3 Configure using TSP Link and interactive MSAN E E T 5 12 Example 4 Using the scanning and triggering model5 17 About the Series 2600A examples This section shows you how to use the Model 707B or 708B with a Series 2600A System SourceMeter instrument to perform an l V sweep across a diode In each example the Model 707B or 708B connects a diode across the o
63. itching Matrix User s Manual Section 5 Working with the Series 2600A Using background scans for longer scan lists Example 4 illustrates use of the scanning and triggering model to create a foreground scan While running a foreground scan you must wait for the scan to complete or you must abort the scan before you can query the instrument state or any reading buffers For a scan with a few channels or crosspoints in the scan list this might not be a problem However when there are many channels in the scan list or when scans are run over long time periods it can be useful to determine instrument state In these situations you can run a background scan A background scan allows you to query settings during a scan To change Example 4 from a foreground scan to a background scan you need to change one command in the runDiodeTest function Change scan execute to scan background You can then use the scan state command to query the status of the scan including the number of steps in the scan the number of steps performed and the number of entire scans performed The following table shows a revised example of the runDiodeTest function in Example 4 function runDiodeTest This function sequences the crosspoint closures and triggering configSwitch Call function to configure the Model 707B or 708B configSMU Call function that configures the System SourceMeter instrument and turns on its output Initiate the System n
64. le of crosspoints to close must be input to this tor 1 1 table getnuioTabls do function if amp then triggered digrobrrgger 2 warxti3 The or loop iterates through the channel list if triggered true then and waits for a trigger on a digital I O line to channel exclusiveclose cTable il occur before closing a channel waitcomplete P The first channel of the list does not wait for a digio trigger 1 assert trigger else print Trigger not received end else channel exclusiveclose cTable il waitcomplete After channel closure is complete an output org OSE Oger a deese trigger is asserted on digital I O line end end print done end endscript forScan Run the script to generate the functions crossptTable setup70xChanList Call the function that sets up the Model 707B or 708B and store the output of the function in the variable crossptTable Alternate method for creating a list of crosspoints The following code creates a list of crosspoints that can be used in a test This code replaces chanTable in the example code above SEM The following nested for loop creates channel list for the scan This list is compiled in the table jscTable Eus hb ven nile ober ore JUR l chanl channel createspecifier 1 1 1 chan2 channel createspecifier 1 2 j ecd cue lecum Mc TI Crosspoints are printed to show output of example print chanTable x so cep end Output 1A01 1
65. ls 707B and 708B Switching Matrix User s Manual Section 2 Using the front panel interface Key descriptions CHAN If a channel is displayed opens the Channel Action Menu options which allows you to open and close channels If a pattern is displayed pressing CHAN switches to channel view PATT If a pattern is displayed opens the Pattern Action Menu options which allows you to manage patterns open and close patterns and reset them If a channel is displayed pressing PATT changes to display a pattern Displays information about the installed cards and the instrument Information includes the firmware revision model name and model number Opens the Scan Action Menu options which allows you to run manage view and reset scan lists See Scanning and triggering Generates a trigger that can be used in a script or the trigger model See Scanning and triggering Opens the Main Menu options which allows you to manage scripts manage communications select channel connections test the keys test the display manage digital I O settings set up the beeper and display instrument information ui EN This key Cancels the current selection and returns to the previous menu item Exit remote operation so you can control the instrument from the front panel Aborts a scan that is running Aborts a script that is executing Accepts the current selection or brings up the next menu option In most cases pressing ENTER is the same as pre
66. nt all readings from the SMU data buffer Note that readings is a buffer attribute printbuffer 1 node 2 smua nvbufferl n node 2 smua nvbufferl readings 707B 900 01 Rev A August 2010 5 11 Section 5 Working with the Series 2600A Models 707B and 708B Switching Matrix User s Manual Example 3 Configure using TSP Link and interactive triggers This example uses a TSP script to configure and run the test The script includes two separate functions for configuring the Model 707B or 708B and System SourceMeter Instrument and a third function for running the test Configuration for both instruments is similar to examples 1 and 2 except that TSP Link trigger lines are used to coordinate the actions between the two instruments When the test is run the instruments assert trigger signals after completing their respective actions After connecting the diode the Model 707B or 708B sends a trigger signal to the System SourceMeter instrument The SMU then performs a single l V sweep on the diode and sends a trigger signal back to the Models 707B and 708B to indicate that the test is completed Hardware handshaking continues in this fashion until all six diodes have been tested Data from the SMU is returned to the controlling computer at the end of all the tests A TSP script is a sequence of instrument commands and programming statements The Model 707B or 708B can store the TSP script for later use Using scripts allows the Model 707B or 708B
67. nt and voltage values SOUR FUNC CURR Configure current source to perform a linear sweep from O to SOUR CURR MODE SWE 10 mA in 1 mA steps SOUR CURR STAR 0 SOUR CURR STOP 10E 3 SOUR CURR STEP 1e 3 SOUR SWE SPAC LIN SENSSVODLTCPROT 10 Configure voltage limit SSBNSTBUNCG VOLT Configure the SMU to measure voltage SENS VOLT PANG 5 Set a fixed voltage range of 5 V SENS VOLT NPLC 1 Set integration rate to 1 PLC ARM DIR ACC Configure the SMU to trigger entire sweep on receipt of ARM SOUR TLINK hardware trigger on the TriggerLink connector SARM TEIN I Configure the SMU to receive a trigger on line 1 and to generate a trigger on line 2 ARM OLIN 2 ARM OUTP TEXIT Configure the counts of the trigger model so that the 11 point CTRTGSDIR ACC sweep is performed six times once for each diode STRIG SOUR IMM TRIG COUN 11 ARM COUN 6 CIRACTPOILN 696 Configure the nonvolatile data buffer of the SMU to store all TRAC FEED SENS 66 sets of readings generated for sweeps across all diodes TRAC FEED CONT NEXT Example program code for the Model 707B or 708B The following code loads a script on the 70xB that contains two functions that e Setup the table of crosspoints to close e Execute the test 6 6 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 6 Working with the Series 2400 Example program code for the Model 707B or 708B Code No
68. nterface 1 On the Cards page right click the channel 2 Clear the Forbidden box 3 Click OK To set the forbidden attribute to false using remote commands Use the command channel setforbidden t Switch relays will not close Why are the switch relays not closing Verify that the system power is sufficient to close the switch relays Check the front panel or script output for error that might have been returned from the operation Save the present state of the instrument How do I save the present state of the instrument Use the Create Config Script option or the command createconfigscript See the Models 707B and 708B Reference Manual Save the present configuration 707B 900 01 Rev A August 2010 7 5 Section 7 Troubleshooting FAQs Models 707B and 708B Switching Matrix User s Manual LabVIEW driver for the Model 707B or 708B Where do find the LabVIEW driver for the Model 707B or 708B The latest Labview driver is always available from the Keithley Instrument s support website http www keithley com support 1 6 707B 900 01 Rev A August 2010 Section 8 Next steps This manual has prepared you to start using your new Model 707B or 708B for your real world applications For more detailed information about the Model 707B or 708B refer to the Keithley Instruments Models 707B and 708B Reference Manual part number 707B 901 01 If you are migrating from a Keithley Model 707A or 708A and wish to use th
69. nterface serving as a communication bus it will also serve as triggering bus to enable hardware handshaking between the System SourceMeter instrument and Model 707B or 708B The communication setup is identical to the setup in Example 2 see Set up communication on page 5 8 There are three digital lines in the TSP Link cable that may be used for triggering This example uses trigger lines 1 and 2 The Model 707B or 708B outputs a trigger signal on TSP Link line 1 and waits for a trigger signal on TSP Link line 2 before proceeding with the next set of crosspoint closures The System SourceMeter instrument outputs a trigger signal on TSP Link line 2 after completing its test and waits for a trigger signal on TSP Link line 1 before testing The triggering setup is illustrated in the figure named TSP Link interface in Example 3 Configure using TSP Link and interactive triqgers on page 5 12 Example program code In the following table all commands are sent from the computer to the Model 707B or 708B This example can be run using TSB Embedded The Model 707B or 708B sends all commands in the shaded rows to the System SourceMeter instrument through the TSP Link interface Commands in unshaded rows are executed by the Model 707B or 708B 707B 900 01 Rev A August 2010 5 17 Section 5 Working with the Series 2600A Models 707B and 708B Switching Matrix User s Manual Example program code for the Model 707B or 708B Code Notes and comments
70. ode Initiate sweep Wait until sweep is complete Connect fourth diode Initiate sweep Wait until sweep is complete Connect fifth diode Initiate sweep Wait until sweep is complete Connect sixth diode Initiate sweep Models 707B and 708B Switching Matrix User s Manual Section 5 Working with the Series 2600A Wait until sweep is complete then turn off the output Open all crosspoints Retrieve data from the Model 2635A Example 2 Using TSP Link to configure instruments Using TSP Link to configure the Series 2600A and Model 707B or 708B This example is identical to the test in example 1 except that TSP Link is used to communicate to the Model 2635 System SourceMeter instrument from the Model 707B or 708B To run this test you create a table on the Model 707B or 708B that contains the crosspoints that are needed to connect the SMU to each diode under test one at a time The SMU then performs an l V sweep on the diode Data from the SMU is returned to the controlling computer after all six diodes have been tested 707B 900 01 Rev A August 2010 o f Section 5 Working with the Series 2600A Models 707B and 708B Switching Matrix User s Manual 5 8 Set up communication The communication setup is illustrated in the diagram below GPIB is used as an example but this application can be run using any of the supported communication interfaces for the instruments A TSP Link connection enables commun
71. ode 2 smua trigger initiate SourceMeter so that it is ready to sweep once a trigger signal is received Note that the output turns on but no power is applied Initiate the System Switch to start a background scan Delay 2 seconds to allow the scan to start delay 2 Use variables to hold the scanState scanCount stepCount scan state scan state response Print the response to scan state which you can use to determine when the scan node 2 smua source output scan background brine tscanGtatve T 7 ecdncounbe ts Eepcounb is complete Query the scan state every second to determine when the scan completes When the scan is complete scan state 6 exit delay 1 the loop end node 2 smua source output 0 Turn off the SMU output channel open allslots Open all crosspoints end Ends the runDiodeTest function while scanState 6 do 707B 900 01 Rev A August 2010 5 21 Section 6 Working with the Series 2400 In this section About the Series 2400 examples 6 1 Equipment required to run the examples 6 1 Connect the equipment eeseeeeeeereee 6 1 Logical block diagram of test connections 6 2 Example 1 Individual commands for switch measure 6 3 Example 2 Digital I O triggering for switch measure rl Facio ERN TIR eR PR m 6 5 About the Series 2400 examples This section provides exampl
72. ompatibility mode e 70xA VERSION This option most closely matches Model 707A or 708A operation Use this version if you are transferring applications directly from a Model 707A or 708A with few changes e 70xB VERSION This options provides enhanced operation including error checking and more robust settling time operation Use this version if you are updating existing applications To enable Model 707A or 708A DDC compatibility mode From the front panel select MENU select DDC Select ENABLE Select the version Press ENTER Cycle instrument power Oe Ol ee op ee To enable GPIB communications 1 From the front panel select MENU 2 Select GPIB 3 Select ENABLE 4 Select ON 5 Cycle power to the instrument lf DDC compatibility mode is selected and GPIB is enabled also verify that e The GPIB cable is connected to the instrument e The instrument has a unique GPIB address 1 2 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 7 Troubleshooting FAQs A model software does not run on B models Software that used with my Model 707A or 708A does not run on the Model 707B or 708B What do do Verify that DDC compatibility mode is enabled You can select one of two options when enabling Model 707A or 708A DDC compatibility mode e 70xA VERSION This option most closely matches Model 707A or 708A operation Use this version if you are transferring applicat
73. rfaces to work through the examples provided in this manual The front panel of the Keithley Instruments Model 707B or 708B contains the following items e The display e The crosspoint display Model 707B only e The keys and navigation wheel e The LAN STATUS light e The POWER button You can use the keys displays and the navigation wheel to change the selected channel or channel pattern You can also use them to access view and edit the menu items The crosspoint display on the Model 707B shows you which channels are opened and closed For additional information about the front panel see the Front panel operation section in the Models 707B and 708B Reference Manual Section 2 Using the front panel interface Models 707B and 708B Switching Matrix User s Manual Model 707B front panel The front panel of the Model 707B is shown below Figure 1 Model 707B front panel KEITHLEY 707B SWITCHING MATRIX LXI Channel columns Slot and channel rows Slot information Q LAN STATUS CONFIG Display Navigation Change scan wheel Instrument Change and channel attributes power button screen display Model 708B front panel The front panel of the Model 708B is shown below 2 2 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 2 Using the front panel interface Figure 2 Model 708B front panel 708B SWITCHING MATRIX Display Change Change scan Navigation Ins
74. rors and reset status bits Clear existing data from data buffer Set source function to current source Set source current range to 10 mA Set voltage measurement range to 6V Set integration rate Enable buffer append mode Set the voltage compliance during the sweep Configure linear staircase sweep Enable the source action during the sweep Configure sweep voltage measurements Enable voltage measurements during the sweep Set trigger count to the number of steps in the sweep Set arm count to six the total number of sweeps that will be run for all diodes Set TSP Link trigger lines 1 and 2 to send and receive falling edge trigger signals Clear any latched triggers on TSP Link trigger lines 1 and 2 Configure sweep to start when signal received on TSP Link line 1 Configure System SourceMeter to output trigger signal on TSP Link line 2 when sweep is complete End of the function Config SMU 5 19 Section 5 Working with the Series 2600A Models 707B and 708B Switching Matrix User s Manual function runDiodeTest This function sequences the crosspoint closures and triggering ot q sw Call function to configure the Model 707B or 708B configSMU Call function that configures the System SourceMeter instrument and turns on its output Initiate the System SourceMeter so node 2 smua trigger initiatel that it is ready to sweep once a trigger signal is received Note that the outp
75. s on the TSB Embedded page 3 To create the example script enter the name column and row labels in the TSP Script box Figure 22 Enter script name 1 TSP Script column and row labes Export to PE Import from P Sawe Script o View Script NENNEN smt HRS ae nl s naa tatnen aa hito iade aln 2 4 Enter the code below in the box below the buttons channel setlabelrow 1A01 SMU1 channel setlabelrow 1B01 SMU2 channel setlabelrow 1C01 GNDU channel setlabelrow 1G01 CVUH channel setlabelrow 1HO1 CVUL channel setlabelcolumn 1A01 DUT1 channel setlabelcolumn 1B02 DUT2 channel setlabelcolumn 1C03 DUT3 channel channel 3 12 open allslots close SMU1 DUT3 a Log Cul Cleer Hei 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 3 Using the web interface ae Commands and parameters for Models 707B and 708B are case sensitive It is important to type in the commands exactly as show to avoid any syntax and execution errors 5 Click Save Script The script is added to the User Scripts list Standard edit functions such as Copy Cut and Paste work within TSB Embedded Figure 23 Script added to User Scripts list User Scripts Te column and row lab TP TestScriptl 6 Torun the script select the script in the User Scripts list and click Run 7 The Instrument Output box
76. s test you create a table on the Model 707B or 708B that contains the crosspoints that are needed to connect the SMU to each diode under test one at a time The SMU then performs an l V sweep on the diode Data from the SMU is returned to the controlling computer after all six diodes have been tested Set up communication The communication setup is illustrated in the diagram below GPIB is used as an example but this application can be run using any of the supported communication interfaces for the instruments Figure 29 GPIB communication setup Model 707B or 708B System Switch Controller Series 2600A SMU 5 4 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 5 Working with the Series 2600A Example program code for the Model 707B or 708B Me The example code does not include programming syntax to issue commands from the host computer over GPIB or LAN communication interfaces It cannot be run using TSB Embedded You are expected to send the instrument commands by means of a separate application development environment such as Microsoft Visual Studio or National Instruments Labview send the following commands to configure the Model 707B or 708B Example program code for the Model 707B or 708B Code Notes and comments reset Reset the instrument to factory defaults errorqueue clear Clear all errors matrixChannels Define the table that details crosspoint
77. s to close to connect each diode to the source measure unit SMU matrixChannels FLAOL 1 B02 Add entries to the table matrixChannels 1A03 1B04 matrixChannels 1A05 1B06 matrixChannels 1A07 1B08 matrixChannels 1A09 1B10 matrixChannels 1A11 1B12 Example program code for the Model 2635 Send the following commands to configure the Model 2635 System SourceMeter Instrument 707B 900 01 Rev A August 2010 5 5 Section 5 Working with the Series 2600A Models 707B and 708B Switching Matrix User s Manual 5 6 Code reset errorqueue clear smua nvbufferl clear smua source func smua OUTPUT DCAMPS smua source rangei 0 01 smua measure rangev 6 smua measure nplc 1 smua nvbufferl appendmode 1 smua trigger source limitv 10 smua trigger source lineari 0 0 01 11 smua trigger source action smua ENABLE smua trigger measure v smua nvbufferl smua trigger measure action smua ENABLE smua trigger count 11 smua trigger arm count 1 Example code to run the test Example program code for the Model 2635 System SourceMeter Instrument Notes and comments Reset the instrument Clear all errors and reset status bits Clear existing data from the data buffer Set source function to current source Set source current range to 10 mA Set voltage measurement range to 6 V Set integration rate Enable buffer append mode Set the voltage compliance during the sweep Configure linear
78. seneeeseaees 5 4 SOLUR combi UE ANNO cnc gee diia eects accep saat E LL DELLI AIR UM UU ES 5 4 Example program code for the Model 707B or 708B esseeessseesseeeeneeenenn enne 5 5 Example program code for the Model 2635 ssssessssssssessesee nennen nnne nnns 5 5 Example code to run Ms ci RET o E 5 6 Example 2 Using TSP Link to configure instruments c sccccceseeeceesseeceeeseeecsenseeseaes 5 7 Serup communicatio se t TEES 5 8 Example pog ami COOS ENTER 5 9 Example code to run the test ercer ERE 5 10 Example 3 Configure using TSP Link and interactive triggers ssuse 0 12 UA aN e CEP PP 5 12 Example program COUP TE ETT EDT 5 13 Example program code to run the test cccccceccceeeccececeeeceueecceceeceueesaceseeseueecueesseessunenas 5 16 Example 4 Using the scanning and triggering model seseeeesssssesss 0 17 Set up communication sseeesssessssssseseesesen nennen nnnnnnsna nnne sese srse iss sa irse a sss naar ssa nnns 5 17 soc ape eigo Fs AEE e ORTE D EO T o P 5 17 Example program code t run the IBS eese coa iioii dE tende iain o Ud p hob a phat dx buone baa tipi ai 5 20 Using background scans for longer scan lists ccceseeeeeeeeeeeeeeeeeeeaeeeeeseeeeeseeeeeesaeeesaeeeeeas 5 21 Working with the Series 2400 iiiissosees rers kanis top 93S ERIAN RN RAEAVES SER UnISERUM Ses S F
79. ssing the navigation wheel O LAN status light The LAN Status light is lit when the instrument is connected through the local area network LAN with no errors If this is not lit the instrument is not connected through the LAN or there is a connection problem If you are using the web interface the LAN Status light blinks when you click ID See the LAN communication interface topic in the Models 707B and 708B Reference Manual for more information Display Me This section describes the front panel display of the Model 708B and the bottom display of the Model 707B 707B 900 01 Rev A August 2010 2 5 Section 2 Using the front panel interface Models 707B and 708B Switching Matrix User s Manual 2 6 During operation the display provides information about the selected channel channel pattern channel state and errors You can press DISPLAY to cycle between the display of the channel or pattern the closed channel list or a screen message During setup the display shows menu choices that you can use to configure the instrument During operation the display shows the control status local or remote and the current channel and indicates if any channels are closed An example is shown below If REM is not displayed control is through the front panel The control status is shown in the upper left corner of the display If REM is displayed the instrument is being controlled remotely through GPIB LAN or USB If RE
80. t Trigger line 2 Trigger line 3 Note Trigger line 3 is not used in the example Example program code In the following table all commands are sent from the computer to the Model 707B or 708B This example can be run using TSB Embedded The Model 707B or 708B sends all commands in the shaded rows to the System SourceMeter instrument through the TSP Link interface Commands in unshaded rows are executed by the Model 707B or 708B 5 13 707B 900 01 Rev A August 2010 Section 5 Working with the Series 2600A Models 707B and 708B Switching Matrix User s Manual Example program code for the Model 707B or 708B Code loadscript diodeTest function configSwitch tsplink reset localnode reset errorqueue clear matrixChannels matrixChannels 1 1A01 1B02 matrixChannels 2 1A03 1B04 matrixChannels 3 1A05 1B06 matrixChannels 4 1A07 1B08 matrixchannels 5 LA09 1B10 matrixChannels 6 1A11 1B12 tsplink trigger teplink triggdef tsplink trigger tsplink trigger 1 mode tsplink TRIG FALLING 2 mode tsplink TRIG FALLING 1 clear 2 clear return matrixChannels end EG OE Contigo MU node 2 reset node 2 errorqueue clear node 2 smua node 2 smua node 2 smua node 2 smua node 2 smua node 2 smua node 2 smua node 2 smua node 2 smua node 2 smua nvbufferl clear Source tune OUTPUT DCAMPS source rang
81. tes and comments loadscript forScan This script creates two functions on the Model 707B or 708B to configure and run the test This script should be stored in the Model 707B or 708B Remember that Lloadscript and endscript commands are not necessary if this script is created in the instrument using TSB or TSB Embedded function setup70xChanList Create a function that sets up the Model 707B or 708B and the list of channels to be used in the test reset Reset the instrument and clear errors errorqueue clear Define and populate a table that holds the chanTable crosspoints to be used to connect the SMU to champable 1A01 1B02 the diodes under test also see notes below this example chanTable P LAUS BUT chanTable 14A405 1B06 chanTable TA EDS chanTable TAOS LB Om chanTable 6 CLATILIBIZ 1 2 3 4 5 6 Configure the digital I O trigger lines to respond digio trigger 1 mode digio TRIG FALLING to and generate falling edge triggers digio trigger 2 mode digio TRIG FALLING i Clear any latched triggers drgio trrgger l cleart Crd Tose niger lasers Return the table as an output of the function return chanTable 707B 900 01 Rev A August 2010 6 7 Section 6 Working with the Series 2400 Models 707B and 708B Switching Matrix User s Manual 6 8 function run 0xForScanun cTable This function sequences the crosspoint closures and hardware triggering A tab
82. tional Instrument s LabVIEW and related release notes e J2SE Runtime Environment which is necessary to use the instrument s web interface e Keithley I O layer and release notes including necessary drivers for communication over the USB interface see the Models 707B and 708B Reference Manual for details on using the USB interface For the latest drivers and additional support information see the Keithley Instruments support website http www keithley com support 1 2 707B 900 01 Rev A August 2010 section 2 Using the front panel interface In this section aiga e Ue DTP NOT TOT 2 1 Model TDZB front parola iiri cess eter oe canes 2 2 Model 708B front panel eseeeussss 2 2 Keys and navigation wheel 2 3 ire p mcr T 2 5 Selecting and closing a channel from the front panel 2 7 Crosspoint display Model 707B only 2 9 Viewing the close or open status of a channel 2 11 Channel patternS as cote euet eia edet es eti erei esed se ORcei iens 2 11 Set up row column and channel labels 2 13 Introduction Before starting this section complete the tasks outlined in the Models 707B and 708B Quick Start Guide and install a switch card within the switching matrix Once you have completed those tasks read this section which provides enough basic information about the Models 707B and 708B front panel inte
83. to 8 or A to Z See your card documentation e Column number Always two digits For columns greater than 99 use A B C and so on to represent 10 11 12 the resulting counting sequence is 98 99 AO A1 A8 A9 BO B1 Matrix channel examples Reference Slot Column 1A05 05 1C05 05 3C12 12 Figure 6 Matrix card display showing channel identifier Matrix Card Slot 2 Row 1 Column 01 Status OPN Open CLS Closed EA oo OQ GE GE GE CONFIG Selecting and closing a channel from the front panel Me For the Model 707B also see Selecting and closing channels using the crosspoint display on page 2 10 to select a channel using the crosspoint display 707B 900 01 Rev A August 2010 2 Section 2 Using the front panel interface Models 707B and 708B Switching Matrix User s Manual A CAUTION Hot switching can dry weld reed relays such that they will always be on Hot switching is recommended only when external protection is provided You can perform operations on a single channel from the front panel To select a channel you use the navigation wheel O Once a channel is selected it is the selected channel for front panel operation ae If labels are assigned to your rows and columns you will see those labels instead of the four digit channel specifiers referred to in the following text Exercise Select and close slot 1 row C column 7 crosspoint To select
84. to create a scan list how to execute a foreground scan how to configure the trigger model to automatically wait for and assert trigger signals Equipment required to run the examples To run this test you will need the following equipment e Six diodes with triaxial connections e One Model 707B or 708B e One switch matrix card Model 7174A 7072 or 7072 HV You can also use the Model 7173 50 if you convert the connection to coaxial instead of triaxial e One Model 2635A SourceMeter Instrument or equivalent source measurement unit SMU You can use the Models 2601A and 2611A SourceMeter instruments if an adaptation is made from the screw terminals on the instrument to the triaxial connections on the switch card Connect the equipment The communication setup and hardware changes for each of the examples and is described at the beginning of each example However all of the examples use the same test equipment setup as shown in the following figure 5 2 707B 900 01 Rev A August 2010 Models 707B and 708B Switching Matrix User s Manual Section 5 Working with the Series 2600A Me This figure shows connections to the Model 7072 8x12 Switch Card However you can make similar connections to the other switch cards listed for this example Figure 27 Connections to switching module Model 2635A WAR Gino INTERNAL OPERATOR SERVICABLE PARTS SERVICE B X QUALIFIED PERSONNEL ONLY im CHANNEL A HI HI NNO Q W 6 n m
85. trument screen and channel wheel power button displays attributes Keys and navigation wheel The keys and navigation wheel on the front panel allow you to turn on set up and operate the instrument from the front panel The POWER key Press this key to turn the instrument on Press it again to turn the instrument off 0 Navigation wheel Turn the navigation wheel to scroll to a menu option or to change the selected value Push the navigation wheel C to open menus or to select a menu option or a value In most cases pressing the navigation wheel performs the same action as pressing the ENTER key On the Model 707B you can use the navigation wheel to control which slot is displayed on the crosspoint display To change a value with multiple characters 1 Turn the navigation wheel to go to the character you want to change the character blinks when selected 2 Press the navigation wheel to edit that character 3 Turn the navigation wheel to change the value Press the navigation wheel to keep the change Repeat these steps as needed to change the value 6 Press the ENTER key or the navigation wheel when finished changing all the characters 707B 900 01 Rev A August 2010 2 3 Section 2 Using the front panel interface Models 707B and 708B Switching Matrix User s Manual Front panel keys The DISPLAY key cycles between three screens The channel display or pattern display
86. turns on but no power is applied 9 15 Section 5 Working with the Series 2600A Models 707B and 708B Switching Matrix User s Manual for i 1 table getn xptTable do The for loop iterates through the channel list waiting three seconds for a trigger on TSP Link line 2 EL ous Cb een before closing a channel The first triggered tsplink trigger 2 wait 3 channel of the list does not wait for a trigger After channel closure is complete an output trigger is channel exclusiveclose xptTable i asserted on TSP Link line 1 It triggered true then tsplink trigger 1 assert else print Trigger not received end else channel exclusiveclose xptTable i tsplink trigger 1 assert end end waitcomplete After all switch and measure actions have completed turn off the SMU output open all crosspoints and print done the print done computer controller can query for done to determine when the test is complete node 2 smua source output 0 channel open allslots end Ends the function runDiodeTest endscript Ends the script diodeTest Example program code to run the test The example program code stores the program in the instrument for later use To run the program send the following commands to the Model 707B or 708B Example program code to run the test Code Notes and comments diodeTest Run the script to define the functions runDiodeTest Execute the test by c
87. ument Pull the card out of the slot Carefully guide the card inside the rails while re installing Make sure the outer shield is not inserted into the card rails Make sure that no other portions of the card catch on any part of the instrument frame while installing Make sure the card is fully seated before restarting the instrument Edge connector is dirty If the card was stored outside of the instrument it is possible that the edge connector has gotten dirty 1 2 3 Check the edge connector The gold edge connector fingers should have a bright surface when properly cleaned If necessary clean the edge connector Re install the card Confirm that the card is supported in the Model 707B or 708B See the Models 707B and 708B specifications Instrument s internal web page is not accessible 7 4 cannot access the instrument s internal web page How do l fix this Ensure that the instrument has a valid and unique IP address assigned To view the IP address of the Models 707B and 708B press MENU Select LAN gt STATUS gt IP ADDRESS f a valid IP address is displayed the instrument configuration is correct If 0 0 0 0 is displayed the IP address is not valid If you are using the automatic configuration method over a corporate network contact your network administrator for assistance If you are using the automatic configuration method and you have a one to one connection between the instrument and the
88. ut turns on but no power is applied Initiate the System Switch to start a foreground scan Waits until Model waitcomplete 2635A finishes all measurements Remote operation pauses until all six tests are complete For other options on running a scan see the box Using background scans for longer scans node 2 smua source output Scan execute MOC L2 1 a sm a source outpuL Turn off the SMU output channel open allslots Open all crosspoints end Ends the runDiodeTest function endscript Ends the diodeTest script Example program code to run the test The example program code stores the program in the instrument for later use To run the program send the following commands to the Model 707B or 708B Example program code to run the test Code Notes and comments diodeTest Run the script to define the functions runDiodeTest Execute the test by calling the function that configures the instruments and sequences their actions To retrieve data from the System SourceMeter instrument through TSP Link use the printbuffer command to print the data to the computer communication interface An example is shown below Example Retrieve buffer data Code Notes and comments printbuffer 1 node 2 smua nvbufferl n Print all readings from the SMU data buffer Note that readings is a buffer attribute node 2 smua nvbufferl readings 5 20 707B 900 01 Rev A August 2010 Models 707B and 708B Sw
89. utput of SMUA of the Series 2600A SourceMeter Instrument SMU The SMU then performs an l V sweep across the diode There are four examples in this section progressing from using direct control over the remote communication interface to automating the sweep using the scan and trigger model Example 1 shows you how to control the Series 2600A and Model 707B or 708B instruments using direct control over the remote communication interface This example Demonstrates how to use the PC to send commands to each instrument separately and cannot be run using TSB Embedded It requires a separate application development environment Requires two communication identifiers such as the GPIB address or LAN IP address One is required for the Model 707B or 708B and the other for the Series 2600A Does not require TSP Link Does not use hardware triggering or the scanning and triggering model of the Model 707B or 708B Example 2 shows you how to use TSP Link to configure the Series 2600A and Model 707B or 708B instruments This example Can be run using TSB Embedded Demonstrates how to configure the TSP Link interface for communication between the instruments Requires unique TSP Link node numbers for each instrument Demonstrates the benefit of using the TSP Link interface to send commands to another instrument Does not require hardware triggering or the scanning and triggering model of the Model 707B or 708B Section 5 Working with the Series
90. veclose 1A07 1B08 Connect fourth diode 2400 READ Initiate sweep and return data 707B or 708B channel exclusiveclose 1A09 1B10 Connect fifth diode 2400 READ Initiate sweep and return data 707B or 708B channel exclusiveclose 1A11 1B12 Connect sixth diode 2400 READ Initiate sweep and return data 2400 OUTP STAT OB Turn off the output of the SourceMeter instrument 707B or 708B channel open allslots Open all crosspoints Example 2 Digital I O triggering for switch measure synchronization In this example you will configure both the Model 707B or 708B and the SourceMeter instrument to wait for and send digital trigger signals after each performs the requested switch closure or measure action Example program code for the Model 2400 ae TSB and TSB Embedded cannot be used to control the Model 2400 SourceMeter You are expected to send commands to the Model 2400 using a separate application development environment such as Microsoft Visual Studio or National Instruments Labview Send the following commands to configure the Model 2400 SourceMeter Instrument 707B 900 01 Rev A August 2010 6 5 Section 6 Working with the Series 2400 Models 707B and 708B Switching Matrix User s Manual Example program code for the Model 2400 SourceMeter Instrument Code Notes and comments Ror Reset the instrument One Clear all errors and reset status bits FORM VOLT CURR Format return data string to return curre
91. vide detailed tutorials to help you achieve success with your Keithley Instruments Model 707B or 708B Semiconductor Switching Matrix The basics of the two simplest interfaces the front panel and the web interface are provided to familiarize you with the instrument The tutorials build upon one another so we recommend that you read this manual from Section 1 to the end of Section 3 Select and run all examples in Sections 4 5 and 6 that are relevant to your intended use and to the equipment you are using some of the examples in this manual may use unfamiliar commands and concepts For detailed information about these refer to the Models 707B and 708B Reference Manual part number 707B 901 01 on the Product Information CD ROM that came with your instrument Models 707B and 708B applications Unlike a standalone instrument the Keithley Instruments Models 707B and 708B are switching systems that are used to intelligently connect other instruments to multiple devices This manual provides application examples that guide you through several common instrument to device switching scenarios These applications are presented after the summary information about the switching matrix and include e Working with the Model 4200 SCS on page 4 1 Demonstrates how to connect the Keithley Instruments Model 4200 Semiconductor Characterization System to a Model 707B or 708B This enables the Model 4200 SCS to automate measurements to multiple devices for DC C
92. www keithley com Models 707B and 708B Switching Matrix User s Manual 07B 900 01 Rev A August 2010 KEITHLEY Models 707B and 08B switching Matrix User s Manual 2010 Keithley Instruments Inc Cleveland Ohio U S A All rights reserved Any unauthorized reproduction photocopy or use the information herein in whole or in part without the prior written approval of Keithley Instruments Inc is strictly prohibited All Keithley Instruments product names are trademarks or registered trademarks of Keithley Instruments Inc Other brand names are trademarks or registered trademarks of their respective holders The Lua 5 0 software and associated documentation files are copyright 1994 2008 Tecgraf PUC Rio Terms of license for the Lua software and associated documentation can be accessed at the Lua licensing site http www lua org license html Document number 707B 900 01 Rev A August 2010 The following safety precautions should be observed before using this product and any associated instrumentation Although 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 precautions required to avoid possible injury Read and follow all installation operation and maintenance information carefully

Models 707B and 708B Switching Matrix

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