Model 2450 System SourceMeter® Version v1.2.0f
Contents
1. Favorites keithley 2450 Home KEITHLEY A Tektronix Company y LXI www keithley com Source Measure Unit Admin LXI Home Instrument Model 2450 IP Config Manufacturer Keithley Instruments Serial Number 01419959 Firmware Revision Virtual Front TCP Raw Socket 5025 Telnet Port Panel Last LXI Message i Ly history Reading buffer defbuffer1 is 0 filled NEW FEATURE CLICK HERE v Internet f R 100 When asked for a Username and Password enter the Username and Password for that particular 2450 The default Username is admin and the default Password is admin 12 2450 850 FRP Rev D January 2015 Model 2450 Firmware Release Notes Version v1 1 0s Release Connect to 134 63 79 149 H The server 134 63 79 149 at unspecified domain requires a username and password Warning This server is requesting that your username and password be sent in an insecure manner basic authentication without a secure connection User name Ea admin i Password e C Remember my password An example of the 2450 Virtual Front Panel is shown below Users can use their mouse from a standard PC to control the instrument Users can also use touch screens from most touch screen devices that can access the 2450 IP address Keithley 2450 Virtual Front Panel Windows Internet Explorer je e 134 63 79 149 File Edit View Favorites Tools Help iy Favorites keithley 24502. awd sgacaieecdeaeanvaczuaveeredabavieatedbanssessaumencdettubsslbesdseaseueueddesrneieaanuspdsscs 21 Compatibility CONCE Sii A ed 21 Cc ida 21 ENHANCEIMEING iad Sgabetverdcaecaudeatewnesaceles 21 NONCTitCal PIXOS iaa 21 NA lotic lone ceaadducisacdeab cde E E N dacsuuea sue ccaacdcustuunnesetagedaaad apsesteendealaageeaseneewadahes 21 2450 850 FRP Rev D January 2015 1 Firmware Version v1 2 0f Supported models Model 2450 Firmware Release Notes General Information Supported models This firmware is intended for use on the following Keithley Instruments product models 2450 2450 NFP 2450 RACK 2450 NFP RACK ATTENTION CRITICAL ATTENTION CRITICAL ATTENTION CRITICAL If you are upgrading firmware from v1 0 0i TO ANY OTHER FIRMWARE REVISION EVER it is critical that firmware upgrade be run 2 TIMES in order for all firmware components to be upgraded correctly Firmware v1 1 0s fixes an issue with the firmware upgrade code inside the 2450 and this requires that the upgrade be performed 2 TIMES either from the front panel or any remote upgrade process If you are at firmware revision v1 1 0s or later then you only need to run firmware upgrade one time NOTE When using Test Script Builder TSB to Flash from v1 0 0i the same requirement applies and the UPGRADE DOWNGRADE option needs to be run twice Firmware Upgrade Downgrade Instructions NOTE Do not turn off power or remove the USB flash drive until the upgrade pr
3. elements that are outside the range of 1 bufferVar n may cause a script to hang or a bus command to timeout 2450 850 FRP Rev D January 2015 27 Firmware Version v1 2 0f Known issues Model 2450 Firmware Release Notes PR50378 PR50379 PR50404 Workaround Prior to using print command with a buffer or printbuf fer the elements or bounds provided should be checked to ensure that they are between 1 and buf ferVar n inclusively Config lists generated by the sweep API don t get saved to the config script Models affected All 2450 Symptom Changes made to source config lists generated using the sweep API are not retained when saving the configuration Workaround Move all points in the config list generated using the sweep API to a new config list This can be accomplished by first creating a new config list Next iteratively recall each point from the sweep config list and store it to the new config list Then delete the config list generated by the sweep API Finally build a custom trigger model that uses the new config list Customer trigger model is overwritten when restoring pre boxed sweep Models affected All 2450 Symptom Changes made to trigger models generated using the sweep API are not retained when saving the configuration Workaround Move all points in the config list generated using the sweep API to a new config list This can be accomplished by first creating a new config
4. list Next iteratively recall each point from the sweep config list and store it to the new config list Then delete the config list generated by the sweep API Finally build a custom trigger model that uses the new config list TSP Link does not reset properly on some units Models affected All 2450 Symptom TSP Link reset or initialization may consistently fail on certain units The unit being reset or initialized may ignore the reset or initialization command stop responding to bus commands and or display Slave in the communications status indicator Workaround If the reset or initialization command is ignored try calling it again It may necessary to repeat this action up to ten times If the command causes a time out for bus communications and or Slave is 28 2450 850 FRP Rev D January 2015 Model 2450 Firmware Release Notes Version v1 0 0i Release Known issues displayed in the communications status indicator for the unit being reset or initialized then it is necessary to choose a different unit to be the TSP Link master PR50497 SCPI command syntax checking Error is not generated if parameter is not valid long or short form of the specified command Models affected All 2450 Symptom The 2450 fails to generate an error when the parameter to a SCPI command does not match either the short or long form of the parameter being specified Instead the unit will accept any number of characters between th
5. system D Resistance Mode Changes Auto Ohms vs Manual Ohms a Significant changes were made to the way resistance mode was documented in Revision A of the 2450 Reference Manual Below is a summary of differences in the Reference Manual vs the actual implementation The Reference Manual will be updated to reflect these changes in Revision B of the 2450 Reference Manual Sections affected are 2 91 6 46 8 116 and 9 14 b The term Auto Ohms has been removed from the user interface The user interface now presents Ohmmeter as a One Touch Quick Setup see diagram below c The term Manual Ohms has been removed from the user interface The user interface now presents Resistance as a Measure function vs Voltage or Current Source see diagram below d The following commands have been eliminated i SENSe 1 RESistance MODe AUTO MANual SCPI section 6 46 ll smu measure resistancemode smu RESISTANCE_AUTO or smu RESISTANCE_MANUAL TSP section 8 116 e The following existing commands have a new argument as follows i SENSe 1 lt function gt UNIT WATT OHM VOLT AMP section 6 ii smu measure unit lt WATT gt lt OHM gt lt VOLT gt lt AMP gt f New TSP Command Usage i Manual Ohms 3 Measures resistance by sourcing voltage measuring current and calculating the resistance reading o smu source func smu FUNC_DC_ VOLTAGE o smu measure func s
6. 0 AR39364 PR50860 AR39658 PR50998 AR39795 PR51005 AR39859 Models affected All 2450 models Symptom When setting up a source configuration list in some cases the source configuration list screen on the front panel GUI will show a source limit value of None if a config list point is selected Resolution This issue has been corrected Models affected All 2450 models Symptom When zooming in on the graph the magnitude of the data changes incorrectly Sometimes the actual graph area of interest will scroll out of sight Resolution This issue has been corrected The overall graph zooming capability has been dramatically improved Models affected All 2450 models Symptom In certain cases when setting up a Dual Sweep the last point of the Source Configuration List is incorrect Resolution This issue has been corrected Models affected All 2450 models Symptom There was an inconsistency in the CLS command behavior with SCPI and 2400SCPI modes In SCPI and 2400SCPI modes the Output Queue was not always cleared properly In TSP mode the command sometimes returned Error Code 410 Query Interrupted or Error Code 420 Query Unterminated Resolution This issue has been corrected 10 2450 850 FRP Rev D January 2015 Model 2450 Firmware Release Notes Version v1 1 0s Release Critical Fixes PR51046 AR39957 PR51263 AR40267 PR51051 AR40159 PR51186 AR39968 Model
7. 0 built in webpage has been enhanced to show a historical list of commands recently sent to the instrument This new COMMAND OUTPUT window has been added to the Send Commands section of the webpage y Keithley 2450 Send Commands Windows Internet Explorer DAR DO Erens O __ ek File Edit View Favorites Tools Help y Favorites keithley 2450 Send Commands ai E gh y Pager Tools O KEITHLEY pa A Tektronix Company www keithley com Command Set TSP o e isplay changescreen display SCREEN_GRAPH Send Command Clear Output sl COMMAND OUTPUT LXI Home display changescreen display SCREEN_GRAPH P Config display changescreen display SCREEN_HOME beeper beep 1 3000 ee beeper beep 1 4500 print lan ipconfig Virtual Front lan MODE_AUTO 134 63 79 149 0 0 0 0 255 255 255 255 Panel print gpib address Send des Commands TSP Extract Data IDN ae KEITHLEY INSTRUMENTS INC MODEL 2450 01419959 1 1 0s elp Internet ay 100 PR51249 Models affected All 2450 models Enhancement The 2450 built in webpage has been enhanced A new button Return Error has been added to allow users to easily query the last unread error number and error message This new functionality works in both TSP and SCPI modes 16 2450 850 FRP Rev D January 2015 Model 2450 Firmware Release Notes Version v1 1 0s Release Noncritical Fixes Noncritical Fixes PR50285 PR50404 PR50670 PR50772 Models affect
8. 450 850 FRP Rev D January 2015
9. 8 Cannot repeatedly reconnect with LAN triggers Models affected All 2450 Symptom Certain scripts where LAN connections are quickly and repeatedly disconnected and reconnected in rapid succession may cause a failed connection Workaround Due to limited socket resources the safest rate of making LAN connections is 1 connection per second If there is need for more than one LAN connection per second the total number of socket resources available is approximately 180 and after a socket is closed it will take 2 minutes to become available again MANUAL TSP Link mode command only supports open drain Models affected All 2450 Symptom In the 2450 Reference Manual the documentation erroneously states that the TSP command tsplink line N mode accepts the following parameters tsplink MODE_DIGITAL_IN tsplink MODE_DIGITAL_OU tsplink MODE_TRIGGER_IN tsplink MODE_TRIGGER_OU Workaround Do not use the parameters listed above in the command tsplink line N The next version of the 2450 Reference Manual will be corrected MANUAL The source sweep list function does not support smu DELAY_AUTO Models affected All 2450 Symptom In the 2450 Reference Manual the documentation incorrectly states that the source sweep list function supports the setting smu DELAY_AUTO Workaround Do not use the setting 1 for delay in the following command 26 2450 850 FRP Rev D
10. 850 FRP Rev D January 2015 Firmware Version v1 2 0f Enhancements Model 2450 Firmware Release Notes AR42086 PR54659 When sourcing current on the 100mA range or lower and the instrument ranges up to the 1A range the source value may be incorrectly rounded Resolution This issue has been corrected Models affected All 2450 models Symptom When source read back is turned off the programmed source values are returned If the programmed values are less than 1 volt the returned values are incorrect due to rounding problems Resolution This issue has been corrected Enhancements PR48621 PR53367 Models affected All 2450 models Enhancement Implement and document procedure for Clearing Memory and Data Sterilization for the Model 2450 This document can be requested from the Keithley Instruments Quality team Models affected All 2450 models Enhancement Add SCPI equivalent for trigger LOG_WARN_ABORT added ABORt as the equivalent trig bloc log even 1 abort abort message trig bloc list 1 LOG_EVENT EVENT 2733 MESSAGE abort message 2450 850 FRP Rev D January 2015 Model 2450 Firmware Release Notes Version v1 2 0f Release Noncritical Fixes Noncritical Fixes PR50249 Models affected All 2450 models Symptom GPIB The SRQ annunciator does not get lit for GPIB works ok for USB and VXI 11 Resolution This issue has been corrected PR50426
11. January 2015 Model 2450 Firmware Release Notes Version v1 0 0i Release Known issues SOURce 1 SWEep lt function gt LIST Do not use the setting smu DELAY AUTO in the following command smu source sweeplist The next version of the 2450 Reference Manual will be corrected PR50228 The display screen command has been changed Models affected All 2450 Symptom The TSP attribute command display screen has been replaced with a TSP function display changescreen The parameters to the new function are the same that display screen previously took as a set attribute The SCPI query command DISPlay SCReen does not exist The DISPlay SCReen command is only intended to change the screen view NOT to query which view is active Workaround N A PR50231 Need to Add Customer Calibration Models affected All 2450 Symptom Because the 2450 added two lower current ranges and one lower voltage range existing 2400 customer calibration hardware will not work on the 2450 Keithley is working on a recommended customer calibration equipment list but for now customer calibration of the 2450 is not supported Workaround Keithley plans to support customer calibration within six months after shipping the initial Model 2450 Please see www keithley com for updates PR50350 Trying to print beyond buffer dimensions causes timeout for new buffer Models affected All 2450 Symptom Attempting to print buffer
12. KEITHLEY Model 2450 System SourceMeter Keithley Instruments Inc Version v1 2 0f Firmware Release Notes 28775 Aurora Road Cleveland Ohio 44139 1891 1 888 KEITHLEY www keithley com Contents CA 2 SUPported MOdeIS cion dle pdas 2 Firmware Upgrade Downgrade Instructions ooonccccnncinnccnnncccnonccnnornnananccnnrnn nn nc eeeaaeseeeeecaaeeeeaaeedeeeeseeeeesiaeeeeeeeeeetes 2 Upgrade considerations for the Model 2450 000cccccccinncccnnccoconccononnnnnocnnonoccnnnc canon 3 Version v1 2 0f Release ou ccceccceccecssceseeeeeseceseeuceeseseceeseuaeauaessceeeeaseaueesasseeeseeauauseseeseseeaeaueeseceeeesseaueaeseeeenesaeas 4 OVA odiados 4 Compatibility iCONCSMS careciendo ra 4 A a a toutes a E E da catandeiovataeeaasaventaeuasiadanatven cosetoase ae AA E GA 4 Enhancements ideal E E AEEA EE E EENAA 6 Noncrtical Fixes ineen II aa ivdex deeaties atten 7 RIO WIS SCS cir E a aaa a A 8 Version v1 1 0s RelA E aaaea adaa a e aa a aa a a a a a a aa aaa a aaia ia 9 OVENI OW aeaa e ena a a a a E T A E A E E EER 9 Compatibilty CONCE MS comoda aa iaa 9 AS AA q sen saveecceescieh daa E due aevavuneceeauseaaatvee tosegtaasaecaveeceenagel aah aaa 9 Enhancements iii ac 12 Noncritical Fix s dado 17 KNOWN ISSUCS A cogaesuetiesedeucuueasuaclaccddadeeunadse caucdseaedapaestneadeatansensuemaadetes 20 Version v1 0 01 Release cooononnccccccccnonononoconcnnnnnnnancnancnnn nono nn anna ancora anar nana anna anna nn EEan Enne 21 SN AAEE EEA EE EEE E E
13. Models affected All 2450 models Symptom Clearing Limit 2 will clear the Limit 1 annunciator on the display instead of the Limit 2 annunciator Resolution This issue has been corrected PR51390 Models affected All 2450 models Symptom The command value display input prompt display BUTTONS_YESNO Do you want to continue will cause the variable value to return nil Resolution This issue has been corrected PR51807 Models affected All 2450 models Symptom Some measure attributes are not saved in the Measure Configuration List smu measure configlist recall does not restore the following attributes Display digits Limit auto clear Math percent User delay 1 through 5 2450 850 FRP Rev D January 2015 7 Firmware Version v1 2 0f This issue has been corrected Model 2450 Firmware Release Notes If the filter is not enabled the following attributes are not restored Filter count Filter type If relative offset is not enabled the following attribute is not restored Relative offset value Resolution This issue has been corrected PR54651 Models affected All 2450 models Symptom Changing the measure range low setting used for auto range could result in incorrect operation if the range is higher than the active measure range Resolution This issue has been corrected Known issues N A 8 2450 850 FRP Rev D January 2015 Model 2450 Firmw
14. Virtual Front Panel KEITHLEY po A Tektronix Company www keithley com Virtual Front Panel LXI Home config KEITHLEY 2450 SourceMeter OUTPUT REMOTE O A Toktronix Company LAN E defbuffer1 No Script 1588 O INTERLOCK E ie Virtual Front Panel Send Commands Extract Data SENSE HI FORCE HI A Help 210v sv 210v PEAK PEAK PEAK 250v SENSE LO FORCE LOD F TERMINALS FRONT REAR o GOOD 8 5 2 Screenis ACTIVE Internet 2450 850 FRP Rev D January 2015 13 Firmware Version v1 2 0f Model 2450 Firmware Release Notes PR50906 PR50231 PR48744 PR50657 PR50662 Models affected All 2450 models Enhancement 2450 Quick Start Guide User Manual and Reference Manuals have all been updated The 2450 Release Notes for Firmware Revision v1 1 0s have also been updated and are available at the Keithley Instruments Inc website Click Here 3 http www keithley com products dcac currentvoltage 2450smu path 2450 Documents Models affected All 2450 models Enhancement Implement and document procedure for Customer onsite Calibration of Model 2450 This capability is scheduled to be available late Q1 2014 Please check back at www keithley com for updates in early April 2014 Models affected All 2450 models Enhancement Provide capability for customers to save screen capture files from the front panel to the USB Flash Drive This
15. are Release Notes Version v1 1 0s Release Overview Version v1 1 0s Release Overview Version 1 1 0s is the second official firmware upgrade release for the Model 2450 Known Issues Usage Notes and Upcoming Enhancements are listed below in this document Compatibility concerns N A Critical Fixes PR50333 AR39747 PR50703 AR39206 PR50704 AR39257 Models affected All 2450 models Symptom 2450 should not measure resistance with output off Because resistance measurements are dependent on the current or voltage source resistance measurements with the source off are meaningless and will be confusing to the user Resolution This issue has been corrected Once the output has been turned on off once the 2450 will display UNAVL unavailable in the upper right corner and the measurement fields will display dashes Models affected All 2450 models Symptom The graph shows voltage drop as current instead of current when sourcing current and then selecting source as the Y axis Resolution This issue has been corrected Models affected All 2450 models Symptom When certain sequences of SCPI commands using the TRIG LOAD LOOP command were sent the 2450 would throw a Fatal System Error requiring a 2450 power cycle to recover Resolution This issue has been corrected 2450 850 FRP Rev D January 2015 Firmware Version v1 2 0f Critical Fixes Model 2450 Firmware Release Notes PR5075
16. capability is documented in Rev C of the 2450 Reference Manual in Section 2 Page 44 2 44 In short with a valid USB Flash Drive inserted into the front USB port of the 2450 press the lt HOME gt and lt ENTER gt keys simultaneously and the current screen image will be saved to the USB Flash Drive Models affected All 2450 models Enhancement The maximum number of characters allowed for naming a Reading Buffer on the front panel GUI was 18 characters The bus commands allow up to 32 characters The GUI maximum number of characters has been updated to 32 to match the bus command limit Models affected All 2450 models Enhancement 14 2450 850 FRP Rev D January 2015 Model 2450 Firmware Release Notes Version v1 1 0s Release PR50758 PR50866 PR50876 Add a password verification method to the 2450 GUI When changing the 2450 system password the user will be prompted to enter the password a second time The second entry will be used to verify that the first and second passwords match and that the intended password has indeed been entered If the two passwords do not match an error dialog is displayed and the users is instructed to try again Models affected All 2450 models Enhancement Scripts can be written in TSB and downloaded to the model 2450 However scripts do not enable the user to input values from the front panel The 26xx family of SMUs allows users to input values into their scripts real tim
17. e Starting with firmware revision v1 1 0s functionality has been added to the 2450 that allows users to input values into the scripts real time from the front panel The new commands are as follows display input number display input option display input prompt display input string These commands are documented in Rev C of the 2450 Reference Manual in Section 8 Page 51 8 51 Models affected All 2450 models Enhancement The 2450 System Information window has been updated to show calibration adjustments vs calibration without adjustment dates The System Information window now presents these dates as follows Adjust Date 11 19 2013 Adjust Count 1 Calibration Date 4 17 2014 Models affected All 2450 models Enhancement The behavior of the LANG command on the 2450 has been changed as follows Sending the query LANG over a non controlling interface will no longer change the interface control of the unit For example if the unit is under local control then sending the LANG over Telnet USB or GPIB will leave the unit under local control This was done in order for KickStart or any other remote control software to query connected accessible instruments without resetting them or changing or disturbing the current trigger model 2450 850 FRP Rev D January 2015 15 Firmware Version v1 2 0f Model 2450 Firmware Release Notes PR51248 Models affected All 2450 models Enhancement The 245
18. e short and long form as being valid For example in the following list only the first two examples should be allowed however the additional four examples are being accepted as valid In a future firmware release the additional four examples will generate an error message COMMAND v1 0 0 Firmware Future Firmware SYSTem EVENtlog COUNt INF OK OK SYSTem EVENtlog COUNt INFORMATIONAL OK OK SYSTem EVENtlog COUNt INFO OK SYNTAX ERROR SYSTem EVENtlog COUNt INFOR OK SYNTAX ERROR SYSTem EVENtlog COUNt INFORMAT OK SYNTAX ERROR SYSTem EVENtlog COUNt INFORMATION OK SYNTAX ERROR Workaround Only send a valid short or long form of the SCPI command parameter Based on the example listed send either INF or INFORMATIONAL for the related command This will avoid new syntax errors when upgrading to new 2450 firmware in the future PR51449 Calibration Date is set to 03 16 1996 after updating 1 0 0i to 1 1 0s Models affected All 2450 Symptom After upgrading the 2450 firmware from version v1 0 0i to v1 1 0s the Calibration Date is 03 16 1996 Do NOT be alarmed This issue has NO IMPACT on calibration and calibration values The issue is that from v1 0 0i to v1 1 0s a new date field was added and it has not been initialized properly Also the date headings have also changed to differentiate between Adjust Date and Calibrati
19. ed All 2450 models Symptom On the Manage Scripts window the Left Arrow and Delete buttons remain enabled and active even after a USB Flash Drive has been removed from the instrument Resolution This issue has been corrected Models affected All 2450 models Symptom TSP Link reset or initialization may consistently fail on some 2450 units The unit being reset may ignore the reset stop responding to bus commands and or display Slave in the Communication Status Indicator Resolution This issue has been corrected Models affected All 2450 models Symptom The LAN Reset button on the back of the 2450 failed to reset the system password Resolution This issue has been corrected and the system password is reset to the default admin Models affected All 2450 models Symptom Offset Compensation for SVMI ohms and Offset Compensation for SIVM ohms did not perform the offset measurement correctly Resolution This issue has been corrected 2450 850 FRP Rev D January 2015 17 Firmware Version v1 2 0f Noncritical Fixes Model 2450 Firmware Release Notes PR50785 PR50786 PR50899 PR50903 Models affected All 2450 models Symptom On the Trigger Flow Screen the default Bit Pattern and Bit Mask show 255 Since there are only 6 trigger lines on the 2450 the maximum Bit Pattern should be no more than 63 Resolution This issue has been corrected The maximum value for Bit Pa
20. elay in the sequence the 2450 will be unresponsive until the loop ends Workaround 2450 850 FRP Rev D January 2015 21 Firmware Version v1 2 0f Known issues Model 2450 Firmware Release Notes PR49812 PR49835 Simply add any measurement or short delay in the trigger loop and the 2450 will perform normally A future firmware release will work around this problem automatically MANUAL Better explanation of sweep delay needed Models affected All 2450 Symptom Recent changes to the sweep commands did not get added to the 2450 Reference Manual in time for first release Workaround The sweep commands accept a delay setting of O for no delay 1 for auto delay excluding the list command or constant value between 50 us and 10000 s The TSP sweep commands are smu source sweeplinear smu source sweeplinearstep smu source sweeplist smu source sweeplog The SCPI sweep commands are SOURce 1 SWEep lt function gt LINear SOURce 1 SWEep lt function gt LINear STEP SOURce 1 SWEep lt function gt LIST SOURce 1 SWEep lt function gt LOG For smu source sweeplist and SOURce 1 SWEep lt function gt LIST the delay setting configures a constant delay trigger block in the trigger model A delay of zero omits the trigger block The configuration list delay settings act independently of the delay specified in the command Therefore a double delay may result by utiliz
21. els affected All 2450 models Symptom Calibration date is set to 03 16 1996 after updating from v1 0 0i to v1 1 0s This is due to the fact that a new field was added between v1 0 0i and v1 1 0s and the new field was not initialized properly Resolution This issue has been corrected and Calibration Date will be set to the old Calibration Adjust Date if not already initialized 2450 850 FRP Rev D January 2015 Model 2450 Firmware Release Notes Version v1 2 0f Release Critical Fixes AR40579 PR51546 AR40591 PR51537 AR41514 PR52399 AR41552 PR52941 AR41757 PR53544 PR54481 Models affected All 2450 models Symptom Black bars appear across the bottom of the screen capture image Resolution This issue has been corrected Models affected All 2450 models Symptom When capturing multiple screen shots in succession the following error would sometimes occur 2350 Internal SPLAT drop packet to input queue Resolution This issue has been corrected Models affected All 2450 models Symptom VISA Device Clear over USB sometimes causes timeout and data loss Resolution This issue has been corrected Models affected All 2450 models Symptom Under certain test setups RST and front panel reset will cause voltage spike at the output Resolution Voltage spikes after RST and front panel reset have been greatly reduced Models affected All 2450 models Symptom 2450
22. ffected All 2450 Symptom A number of miscellaneous late changes were not added in time to Rev A revision of the 2450 Reference Manual Some of the key issues have been documented here A The following commands have been removed from the product SCPI SySTem BEEPer STATe TSP beeper enable These commands have been used in various places in the manual and in documented examples These references will be removed in the next revision of the manual No substitute commands have been provided B Digital I O behavior a For digital I O lines changing the line mode to input will set the line state high b For digital I O lines changing the line mode to output will set the line state low c When configuring digital I O the output side of the line should be configured before the input side to avoid a false input trigger detection 2450 850 FRP Rev D January 2015 23 Firmware Version v1 2 0f Known issues Model 2450 Firmware Release Notes C Using the reset command a On page 3 125 in the Reference Manual the following NOTE is INCORRECT The command tsplink initialize DOES change the states of the individual nodes in the system NOTE Using the reset command in a TSP Link network differs from using the tsplink reset or tsplink initialize command The tsplink reset of tsplink initialize command reinitializes the TSP Link network but does not change the state of the individual nodes in the
23. ing both The next version of the 2450 Reference Manual will be updated Recalling measure configuration list causes error 823 Models affected All 2450 Symptom When recalling the measure configuration list before the source configuration list the error code 823 may be displayed Workaround When recalling both source and measure configuration lists always recall the source configuration list before the measure This order ensures that dependencies between source and measure settings will be properly handled 22 2450 850 FRP Rev D January 2015 Model 2450 Firmware Release Notes Version v1 0 0i Release Known issues PR49885 MANUAL Source delay is incorrect for default settings and resistance measure function SCPI SOURce 1 lt function gt DELay TSP smu source delay Models affected All 2450 Symptom In the 2450 Reference Manual the documentation for the command smu source delay claims the default setting is 001 This is NOT TRUE There is no default value for the command smu source delay and if queried without being set will return the last auto delay setting The manual also states If you turn auto delay back on the programmed source delay value is added to the auto delay time This is also incorrect Workaround Make sure to set an initial value for smu source delay The next version of the 2450 Reference Manual will be corrected PR49892 Changes to the Reference Manual Models a
24. mu FUNC_DC_CURRENT smu UNIT_OHM e smu measure unit OR e smu source func smu FUNC_DC_CURRENT e smu voltage func smu FUNC_DC_ VOLTAGE e smu measure unit smu UNIT_OHM ii Auto Ohms gt Measures resistance by sourcing current measuring voltage and calculating the resistance reading In this case the source current and source limit are automatically calculated and set 24 2450 850 FRP Rev D January 2015 Model 2450 Firmware Release Notes Version v1 0 0i Release Known issues smu measure func smu FUNC_RESISTANCE g New SCPI Command Usage i Manual Ohms see definition above e SOURce FUNC VOLTage e SENSe 1 FUNC CURRent e SENSe 1 CURRent UNIT OHM OR e SOURce FUNC CURRent e SENSe 1 FUNC VOLTage e SENSe 1 VOLTage UNIT OHM ii Auto Ohms see definition above SENSe 1 FUNC RESistance h Front panel user interface setting of Manual vs Auto Ohms measurements lt see the following figure for details gt Source Voltage Source Current and Measure and Measure Exhibits Auto Ohms behavior SVMR SVMI 0 sSiMV 0 Hu aia Both exhibit Manual PET Meat Ohms behavior works just like Power by setting units to Ohms and going to SVMI or SIMV 2450 850 FRP Rev D January 2015 25 Firmware Version v1 2 0f Known issues Model 2450 Firmware Release Notes PR49955 PR50042 PR5018
25. occurs Models affected All 2450 models Symptom Sending IDN over USB TMC causes the unit to switch into USBTMC control instead of staying with the current active interface It also puts the trigger model back into IDLE mode Resolution This issue has been corrected Models affected All 2450 models Symptom ICL command display changescreen can lock up after the command reset is called over and over again Resolution This issue has been corrected 2450 850 FRP Rev D January 2015 19 Firmware Version v1 2 0f Known issues Model 2450 Firmware Release Notes Known issues PR48636 PR49308 Model 2450 does not respect a USB Flash drive file that is read only Models affected 2450 Symptom The 2450 will write over read only files on flash drives For example if the 2450 attempts to write to file aaa txt and aaa txt is marked read only the 2450 will rewrite file aaa txt without warning This problem does NOT suggest the 2450 randomly overwrites arbitrary files on a flash drive Workaround There is no known workaround for this issue at this time trigger BLOCK_BRANCH_COUNTER loop without a measure or delay block appears to hang SCPI TRIGger BLOCk BRANch COUNter TSP trigger model setblock with trigger BLOCK_BRANCH_COUNTER Models affected 2450 Symptom When running a tight trigger loop without a measurement or delay in the sequence the 2450 will be unre
26. ocess is complete From the front panel 1 Copy the firmware upgrade file to a USB flash drive The file is ki_2450_v1_2_0f upg 2 Verify that the upgrade file is in the root subdirectory of the flash drive and that it is the only firmware upgrade file in that location 2450 firmware files end with the file extension upg example HA ki_2450_v1_2_Of upg Disconnect any input and output terminals that are attached to the instrument Turn on instrument power Insert the flash drive into the USB port on the front panel of the instrument From the instrument front panel press the MENU key Under System select Manage Select the type of upgrade you want to do To upgrade to a newer version of firmware Select Upgrade to New To force downgrading to an older version of firmware Select Downgrade to Older 9 If the instrument is controlled remotely a message is displayed Select Yes to continue 10 When the upgrade is complete reboot the instrument 11 If you started with firmware revision v1 0 0i then GO TO STEP 6 and RUN STEPS 6 THROUGH 10A SECOND TIME ONDA OW NOTE A message is displayed while the upgrade is in progress For additional information about upgrading the firmware refer to the How do Upgrade Firmware topic in the Frequently Asked Questions FAQs section of the Model 2450 Interactive SourceMeter Instrument Reference Manual document number 2450 901 01 This manual is available online at http w
27. on Date e g Verification Date See the diagrams below 2450 850 FRP Rev D January 2015 29 Firmware Version v1 2 0f Known issues Model 2450 Firmware Release Notes v1 0 0i firmware v1 1 0s firmware SYSTEM INFORMATION SYSTEM INFORMATION Before there was only one date field named Calibration Adjust Date This was the date that the 2450 was last calibrated WITH adjustment Starting with the v1 1 0s firmware a new date named Calibration Date was added to display and differentiate between the Adjust Date and Calibration without adjust Date The new Adjust Date is the same field as the old Calibration Adjust Date The new Calibration Date is brand new field and this will be the date the 2450 was last calibrated WITHOUT adjustment Since the new Calibration Date field did not exist with v1 0 0i firmware this new date is un initialized and has defaulted to 03 16 1996 Again this has zero impact on the original factory calibration and does not impact the factory stored calibration constants in any way Workaround This date will be properly set the next time the 2450 is returned to Keithley or a designated field service office for recalibration If you insist on updating the Calibration Date to equal the Adjust Date please refer to the Model 2450 Interactive SourceMeter Calibration Manual This manual can be found at www keithley com The document is 2450 905 01 30 2
28. s affected All 2450 models Symptom When a Source Configuration List is generated in the Trigger Flow Model everything works OK When the Source Configuration List is saved and then recalled the 2450 sometimes returns the Error Code 221 Conflict Error because the Currrent Range of all of the Source Points is always saved to the 100uA range Resolution This issue has been corrected Models affected All 2450 models Symptom Sometimes the Abort on Source Limit setting does not work when the 2450 performs Voltage Sweeping and reaches the Source Limit Resolution This issue has been corrected Models affected All 2450 models Symptom Extra Current Steps occur between Current Source Range transitions when using the Source Configuration List Resolution This issue has been corrected Models affected All 2450 models Symptom 2450 crashes after long period of time running through Labview Resolution This issue has been corrected 2450 850 FRP Rev D January 2015 11 Firmware Version v1 2 0f Enhancements Model 2450 Firmware Release Notes Enhancements PR50774 Models affected All 2450 models Enhancement Implement new Virtual Front Panel capability To access the new Virtual Front Panel access the 2450 through Ethernet using your favorite Internet browser Keithley 2450 Home Windows Internet Explorer 6 jv E 134 63 79 149 File Edit View Favorites Tools Help Ve
29. sponsive until the loop ends Workaround Add any measurement or short delay in the trigger loop and the 2450 will perform normally A future firmware release will work around this problem automatically 20 2450 850 FRP Rev D January 2015 Model 2450 Firmware Release Notes Version v1 0 0i Release Overview Version v1 0 0i Release Overview Version 1 0 0i is the initial firmware release for the Model 2450 No fixes are listed since this is the very first firmware release Known Issues Usage Notes and Upcoming Enhancements are listed below in this document Compatibility concerns N A Critical fixes N A Enhancements N A Noncritical fixes N A Known issues PR48636 Model 2450 does not respect a USB Flash drive that is read only Models affected 2450 Symptom The 2450 will write over read only files on flash drives Specifically if the 2450 attempts to write to file aaa txt and aaa txt is marked read only the 2450 will rewrite file aaa txt without warning This problem does NOT suggest the 2450 randomly overwrites arbitrary files on a flash drive Workaround There is no known workaround for this issue at this time PR49308 Trigger BLOCK_BRANCH_COUNTER loop without a measure or delay block causes hang SCPI TRIGger BLOCk BRANch COUNter TSP trigger model setblock with trigger BLOCK_BRANCH_COUNTER Models affected 2450 Symptom When running a tight trigger loop without a measurement or d
30. ttern is now 63 The maximum value for Bit Mask remains 255 Models affected All 2450 models Symptom Digital I O Trigger blocks behavior functionality was not correct Resolution For Digital I O Trigger blocks as the mask setting changes any bits that are set to 1 will have the corresponding Digital I O line set to Digital I O Output Mode For bits set to 0 those corresponding Digital I O line modes remain unchanged Models affected All 2450 models Symptom The default value for Source Current Range displayed on the front panel does not match the actual Source Current Range value Resolution The default Current Source Range is now 10nA in 2450 SCPI mode Models affected All 2450 models Symptom Source Current and Source Voltage Levels have incorrect Min and Max Values SOURce 1 CURRent LEVel IMMediate AMPLitude reports that the minimum acceptable value is 1 00 and maximum is 1 00 when they should be 1 05 and 1 05 respectively Resolution This issue has been corrected 18 2450 850 FRP Rev D January 2015 Model 2450 Firmware Release Notes Version v1 1 0s Release Noncritical Fixes PR50979 PR51033 PR51205 Models affected All 2450 models Symptom If a Sweep Function encounters a Source Limit Value Event the Source will not turn off Resolution This issue has been corrected The 2450 will now automatically turn off the Source Output if a Source Limit Event
31. ww keithley com support Search for 2450 Reference Manual when you get there 2 2450 850 FRP Rev D January 2015 Model 2450 Firmware Release Notes General Information Upgrade considerations for the Model 2450 Upgrade considerations for the Model 2450 ATTENTION Once the 2450 is upgraded to v1 2 0f the unit can NEVER be downgraded to an older firmware version Subsequent versions of firmware will be able to downgrade back to v1 2 0f but no earlier version 2450 850 FRP Rev D January 2015 3 Firmware Version v1 2 0f Overview Model 2450 Firmware Release Notes Version v1 2 0f Release Overview Version 1 2 0f is the third official firmware upgrade release for the Model 2450 Known Issues Usage Notes and Upcoming Enhancements are listed below in this document Compatibility concerns Firmware revision v1 2 0f can be installed on any vintage 2450 Critical Fixes AR40324 PR51382 AR40457 PR51440 PR51987 AR40488 AR40573 AR40575 PR51449 Models affected All 2450 models Symptom The limit values in trigger BLOCK_BRANCH_LIMIT_CONSTANT are saved incorrectly in the Create Config operation Under certain conditions limit values are saved as zero Resolution This issue has been corrected Models affected All 2450 models SCPI2400 mode only Symptom Source Memory Sweep does not work properly when Source Auto Clear is enabled Resolution This issue has been corrected Mod
Download Pdf Manuals
Related Search