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1. Chapter 2 Understanding the Agilent E6171B Measurement Control Module 15 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Agilent E6171 Measurement Control Module Agilent E6172 32 Pin Matrix Module To H V Shutdown J1 We UUT Common Analog Bus Safet Fuse E 1 2 3 4 Interloci VII Gnd d T T T T R KL LCS S LENIN Gal XITTLTrig 0 7 VISrcLo VISrcHi To Debu Panel Column 1 y 5 Column 2 Y K Column 3 v Column 4 X AComp n ExtTrig 1 8 DvmHi IN DvmLo T 1 ISrcHi X Arb1Hi ArbiLo AdctHi U AdciLo Adc2Hi 1 Adc2Lo 1 CtrCh1 i CtrCh2 3 Inst13 i To next Agilent 6172 J2 32 Pin Mayit Module Ribbon Cable Agilent est IN 3 Inst14 Inst15 Inst16 2000 2000 2000 2000 Note Some Agilent TS 5450 Systems have the Debug Panel Common connections made to the UUT Common column Hi Q Current Source E6173 Arbitrary Function Gen Arb Hi Channel 1 Lo Hi To Mass d deene i Port 3 Hi E1429 Digitizer Port 3 Lo ADC Port 4 Hi Port 4 Lo E1333 Channel 1 Counter Channel 2 J1 1 1 Aux Row1 NOM GM Aux2 XC ER Roi hi li M Aux3 Row3 e i i Li OMM 3 Auen iN NEAN Row30 NON OR gt Au
2. November 1995 as applicable in any technical data Safety Notices Caution A Caution notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly performed or adhered to could result in damage to the product or loss of important data Do not proceed beyond a Caution notice until the indicated conditions are fully understood and met WARNING A WARNING notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly per formed or adhered to could result in personal injury or death Do not proceed beyond a WARNING notice until the indicated condi tions are fully understood and met Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Safety Summary The following general safety precautions must be observed during all phases of operation of this system Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design manufacture and intended use of the system Agilent Technologies Inc assumes no liability for the customer s failure to comply with these requirements General This product is provided with a protective earth terminal The protective features of this product may be impaired if it is used in a manner not specified in the operation instructions WARNING DO NOT OPERATE
3. Other Relay Parameters 300 VDC Standoff voltage 200 VDC Switching voltage Appendix A Agilent E6171B Measurement Control Module Specifications 29 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Voltage Source Low Voltage Voltage Range 16Vdc rated current 0 2 Amp 4 quadrant operation rated accuracy no load 0 0696 0 006 V DAC resolution 16 bits Output Resistance 2O max Current Sense Accuracy to ABus 1to Abus2 4 UUTCommon 200mA range 1 25 1501A x 2 096 150A 20mA range 0 21 15 wA 0 29 15 WA 2mA range 0 30 1 5uA 0 31 1 5uA 200uUA range 0 12 0 75 uA 0 12 0 75uA Short Circuit Current Limit Protected 0 225A Voltage Source High Voltage Voltage Range 10 to 100Vdc or 100 to 10 Vdc rated current 0 02 A 4 quadrant operation rated accuracy no load 0 06 0 06 V DAC resolution 16 bits Output Resistance 2 max Current Sense Accuracy to ABus 1to Abus2 4 UUTCommon 0 25 150HA 0 33 150A Short Circuit Current Limit Protected 0 025A Current Source Low Voltage Current Range 200 mA over 16V range 4 quadrant operation Current Accuracy 200 mA range 0 3 500uA 20 mA range 0 1 504A 2 mA range 0 3 SpA 200 uA range 0 1 0 5 WA DAC resolution 16 bits Voltage Compliance Limit Range 1 5 to 16 Vdc Voltage Compliance Limit Accuracy 0 25 Volts specified at no load
4. Register buses TRIGI and TRIG2 not controlled by the previously described source and destination registers You probably will find it helpful to refer to Figure 2 3 on page 19 when using the following table Other Trigger Resources Register base 38 Bit 15 14 13 12 11 10 9 8 Pur Read sta Read sta Invert out Trigger Connect Connect TRIG2 Connect Connect pose tus tus put Bit TRIG2 to start input TRIG2 TRIG1 of TRIG2 of TRIG1 of analog Control to Digital of general pur to bit 15 to Digital Trig read only read only comparator Trigger out pose of this register ger timer out Value state state state state state state state state Bit 7 6 5 4 3 2 1 0 Pur Connect Connect Connect out Connect out Connect bit Connect output Connect out Connect bit pose TRIG1 TRIG1 put put of 12 of put of 12 to start input to bit 14 of of analog general pur ofthis regis analog compar general pur of this regis of this register comparator pose ter ator pose ter general pur to timer to TRIG2 to TRIG2 to TRIG1 timer to TRIG1 to TRIG1 pose TRIG2 timer Value state state state state state state state state The default value of this register at power on or after the module has been reset is C000 d Setting bit 13 to 1 inverts the output from the analog comparator 50 Register Definitions state The value is the state of the bit the last time 1t was written to If the bit Appendix B Artisan Technology Group
5. second source is a software programmable trigger whose routing is controlled by bits 0 and 3 of the same register And the third trigger source is the output from the analog comparator denoted trigger input whose routing is controlled by bits 2 and 5 of the same register If desired bit 13 of the register lets you invert the comparator s output sensing There are three additional outputs from trigger buses TRIG1 and TRIG2 One shown as digital trigger output can connect to any of the four columns on ABus1 ABus4 It can connect via buses TRIG 1 or TRIG2 any of the nineteen trigger sources to ABus1 ABus4 Its routing is controlled by bits 8 and 11 of the Other Trigger Resources Register Another output from the trigger multiplexer is a line timer start that connects either trigger bus to the input of the general purpose timer This lets you use any of the trigger sources to start the timer Bits 7 and 10 of the same register let you control which trigger bus connects to the timer s input and allow for timer initialization on a trigger pulse Refer to the section on the General Purpose Timer later in this chapter The last trigger output is a line denoted software poll Connecting the software poll line to trigger bus TRIG1 or TRIG2 and then monitoring the line lets you poll the status of either trigger bus to see if a trigger signal is present Bit 6 enables readback via bit 14 of TRIGI and bit 9 enables readback via bit 15
6. 30 Agilent E6171B Measurement Control Module Appendix A Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Output Resistance 200 mA range gt 20 kQ minimum 20 mA range gt 200 kQ minimum 2 mA range gt 2 MQ minimum 200 pA range gt 20 MQ minimum Current Source High Voltage Current Range 20mA rated voltage 4 quadrant operation 10 to 100 Vdc or 100 to 10Vdc rated accuracy no load 0 3 0 46 mA DAC resolution 16 bits Current Accuracy 0 3 500 LA Voltage Compliance Limit Range 10 to 100 Vdc Voltage Compliance Limit Accuracy 2 5 Volts specified at no load Output Resistance 140 kQ Step Up Transformer Transformer Ratio 10 2 1 Voltage Accuracy 10 5 maximum error 150Hz to 5kHz Output voltage 160 Nep max into a 10k load Output Current 10mA maximum Output Impedance 1 0k 2 maximum 1 0kHz Hi Voltage Attenuator Attenuation 20 1 nominal Accuracy DC 3mV maximum unattenuated 2 5 250 mV maximum attenuated Settling Time to within 2 0 of final value 20uS maximum unattenuated 5uS maximum attenuated 1 Accuracy specification are with respect to the default knee voltage of 2 5V with no external source resistance Unattenuated range of 2 0V Attenuated range of 20 to 200 V Appendix A Agilent E6171B Measurement Control Module Specifications 31 Artisan Technology Group Quality Instrumentation Guaranteed
7. A rtisan Artisan Technology Group is your source for quality Fra op new and certified used pre owned equipment FAST SHIPPING AND SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT DELIVERY Experienced engineers and technicians on staff Sell your excess underutilized and idle used equipment TENS OF THOUSANDS OF at our full service in house repair center We also offer credit for buy backs and trade ins IN STOCK ITEMS www artisantg com WeBuyEquipment EQUIPMENT DEMOS HUNDREDS OF InstraV ea REMOTE INSPECTION LOOKING FOR MORE INFORMATION MANUFACTURERS Remotely inspect equipment before purchasing with Visit us on the web at www artisantg com 7 for more our interactive website at www instraview com 7 information on price quotations drivers technical LEASING MONTHLY specifications manuals and documentation RENTALS ITAR CERTIFIED yop aed Contact us 888 88 SOURCE sales artisantg com www artisantg com Agilent TS 5400 Functional Test System Series IIB Agilent E6171B Measurement Control Module User s Manual Manual Part Number E6171 90032 E Agilent Technologies Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Notices Agilent Technologies Inc 1994 2003 No part of this manual may be reproduced in any form or by any means including electronic storage and retrieval or transla tion into a foreign language without prior agreement and
8. LV Voltage Mode Vout 609 75x10 SETTING 19 98V 40 Register Definitions Appendix B Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com HV Voltage Mode V 3 351x10 SETTING 109 8 LV Current Mode Positive current defined as sourcing negative is sinking 200 mA Range Lu 30 52x10 SETTING 1 A 20 mA Range Luz 3 052x10 SETTING 100 mA 2mARange Luz 3052x10 SETTING 10 mA 200 uA Range Igy 30 52x10 SETTING 1 mA HV Current Mode Lu 33 46x10 SETTING 0 998 A You specify the programmed value via bits 0 through 15 in this register as shown below Programming these bits to integer values from 0000 to FFFF provides output voltage values of 10 V for the DAC and different values depending on range and mode VI Amplitude DAC Register base 08j Bit 15 0 Purpose Set or read programmed output voltage Value Read current voltage value or Write desired voltage The default value of this register at power on or when the module has been reset is 0000p V I Clam D This register consists of two separate functions Amplifier selection bits and Attenuator Knee ight bit DAC and DAC amp The amplifier selection bits select which resources are connected to the low Th and high voltage V I amplifiers Available resources include VI DAC VI Amplifier Selector GROUND High Voltage only and ARB gain amplifier
9. gger Configuration Registers TTL amp External Trigger Sources for TRIG1 Register state of relay The value is the state of the bit which determines the state of the relay the last time it was written to If the bit was not written to its value is the default from power on or reset These registers control the configuration of the trigger multiplexer The trigger multiplexer contains two trigger buses each of which can be connected to various combinations of trigger sources and destinations These registers let you specify the routing between sources and destinations Possible trigger sources and destinations include eight V XIbus backplane triggers VXI TTLTrig1 8 and eight external triggers ExtTrig1 8 on the module s front panel This register controls the selection of trigger sources for bus TRIGI in the trigger multiplexer Bits 15 8 control connections between external trigger buses and TRIGI and bits 7 0 control connections between the TTL level VXIbus backplane and TRIGI TTL amp External Trigger Sources for TRIG1 Register base 30j Bit 15 14 13 12 11 10 9 8 Purpose ExtTrig8 ExtTrig7 ExtTrig6 ExtTrig5 ExtTrig4 ExtTrig3 ExtTrig2 ExtTrig1 to TRIG1 toTRIG1 to TRIG1 to TRIG1 to TRIG1 to TRIG1 to TRIG1 to TRIG1 Value state state state state state state state state Bit 7 6 5 4 3 2 1 0 Pur VXITTL VXITTL VXITTL VXITTL VXITTL VXITTL VXITTL VXITTL pose Trig
10. 29 External Instrument Multiplexer eese eene nennen 29 Voltage Source Low Voltage rssicon rennen 30 Voltage Source High Voltage essere nennen nennen 30 Current Source Low Voltage ssessssseseesseesseeeseeeeen nere ioei enne 30 Current Source High Voltage ener nennen 31 Step Up Transformer eerte eot Lese laete eee tv ep nd cute ee Se be 31 Contents Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 9 10 Hi Voltage Attenuator once a dem o nba directed 31 MCM BN be Te 32 End ot Lite D tection eee e i Pe Po P eo aei ce tren 33 Replacement Strate Sy tee Zeechen atta EL e yxp pa esplorare 34 Appendix B tzundgbsidniceEe m 35 Addressing the Registers d 2 odo decide ee ep a adie Ce RCRUM LEUR EUR EE steeds 35 16 Address Space Outside the System Controller sess 35 Iudei cm 36 Register Descriptions eere ehe Gre ei a ease Ep OE Ee Een 37 Manufacturer Identification Register essere 37 Device Type Registet 1 22 dette entente trier rede eed xta Ek 37 Status Control Register eet htec eei recep eode ed eda 37 General Purpose Timer Register esesessseeeeeeeeener nene 40 DAC Control Registers 2 eerte ree pe iip se eie 40 V I Clamp Attenuator Knee and DAC amp Amplifier Selector Register 41 Relay
11. 888 88 SOURCE www artisantg com Input Impedance 20kQ Maximum Input Voltage 100 DCV 200 Pulse 1mS 1 096 DC 500 Volts maximum with external series resistor and clamp protection 200 Volts Programmable Knee 1 to 10 Volts 2 5 Volts default MCM Trigger Subsystem Resources Trigger Inputs Outputs External Triggers 8 TTL bi directional chassis referenced VXI TTL Triggers 8 bi directional Timer 1 timer done timer start Software 1 input 1 output Comparator 1 Input only ref to DUT common programmable edge Digital Trigger 1 Output only ref to DUT common internal pullup to 5V Time Delay VXI TTL Trig in any EXT Trig in or Timer Done to any other VXI TTL Trig any other EXT Trig or Timer Start 100nS max VXI TTL Trig in any EXT Trig in or Timer Done to Digital Trigger Out 150nS max Comparator Threshold in to any VXI TTL Trig out any EXT Trig out or Timer Start 350 nS max Comparator Threshold in to Digital Trigger out 400nS max Analog Comparator Maximum Voltage 100 Vdc or 200V pulse lt 10mS lt 2 duty cycle Input Resistance 100 KQ typical Input Bandwidth 250 kHz min Comparator 200 V Range Programmable Threshold Range 200V Programmable Threshold Accuracy 4 Volts Threshold Sensitivity hysteresis 5 0 Vpp max 1 0 Vpp min Comparator 20 V Range Programmable Threshold Range 20 Programmable Threshold Accuracy 0 4 Volts Threshold Sensitiv
12. Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com was not written to its value is the default from power on or reset IRQ Reg ister The IRQ Register lets you control or read the status of interrupts as follows The value written to bits 2 0 selects which interrupt IRQ1 through IRQ7 is associated with the source s or cause of the interrupt A 0 disables an interrupt The value written to bits 5 3 selects the source s of the interrupt For example setting bit 4 to 1 enables the general purpose timer as the source of the interrupt Or setting bits 3 and 5 to 1 allows the INTRLCK or the Software IRQ to simultaneously be the source of the interrupt Thus you can have from one to three sources of interrupts associated with a single interrupt output Bits 10 8 return the status of the interrupt events sources For example bit 9 is 1 if the timer finished counting When an interrupt occurs it sets bit 0 IRQ Pending in the Status Control Register to 1 IRQ Register base 3E Bit 15 11 10 9 8 7 6 5 4 3 2 0 Purpose Undefined IRQ Bit TMR Done INTRLCK IRQ Bit Undefined IRQ Bit Timer INTRLCK IRQ Status Status Status Enable Enable Enable Select Value X state state state state X state state state IRQ state The default value of this register at power on or after the module has been reset is F8COp R Bits 0 5 are read writ
13. 1 2 Placement of the Agilent E6171B Measurement Control Module in a VXI Mainframe 14 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Chapter 2 Understanding the Agilent E6171B Measurement Control Module Introduction Figure 2 1 shows a simplified block diagram of the Agilent E6171B in a typical Agilent TS 5400 Family application THe application includes one Agilent E6172A 32 Channel Pin Matrix module and four other test instruments Description of Features The Measurement Control Module contains A 16 X 5 matrix of dry reed relays used to multiplex instruments An isolated e floating dual range voltage and current source that also can be used as an amplifier for the Agilent E6173A Arbitrary Waveform Generator Module formerly Agilent Z2471A and optionally high voltage transformer output A trigger multiplexer that provides access for external equipment triggers to the VXIbus TTL triggers and Device Under Test DUT An analog comparator whose output is routed to the trigger multiplexer A general purpose timer that can run in one shot or free running modes Besides being used for general timing applications its output can be routed to any of seven interrupt lines and used for triggering generating delays or pacing A DUT referenced measurement system a path through relays that connects DUT ground to system or chassis ground
14. Mamframe enne en renes 14 Chapter 2 Understanding the Agilent E6171B Measurement Control Module 15 e tee EL 15 Description of Features oue seine ren re eR e Pe e Y HERR Ha RED RR E 15 16 X 5 Instrument Multiplexer seeseeeeseeeeeneneene nennen rennen 17 Trigger Multiplexer eee atc Eege 17 Isolated V LSOUtGe cec eta er cer e er eU REED Ve E A EREN ERES ES 20 ARB POAttes IS N 21 Analog Comparator nec eret niei lea d e eese e Pe Ein 21 General Purpose Timer cesses rogersi enne enne 21 Digital TiS Ser NE C m 23 Programmable Attenuator sssseseeseseeeeeee eene tnn nennen nh sentent nnne 24 Connecting DUT Ground to Chassis Ground eee 25 linn qe EC 25 Power on State sede eret etes torte des ioa e ele e e e e eaa Lee reed ere code taa rue 26 Software Reset iu n nee tette EE E Ee eb RA TUM e uu EE 26 Chapter 3 Adjusting the Agilent E6171BE6171B Measurement Control Module eerie eee estne entente nennen natn seen tents atn aeos 27 Usin This Chapter c Enea 27 Adjusting the VE Pots ttti op e Rt endete deiecit 27 Other AdJUstments iicet tea eesti sa t Feet e eed eoe ede eee ede ee ee ene nA 27 Appendix A Agilent E6171B Measurement Control Mo du le SpecificAti ns m 29 qucm
15. NUES CRT 44 Trigger Configuration Registers eese nennen 48 IRQ RE Sister A 51 Programming the Registers cni ende retreat o tUe e n Eo UR ege 52 Using the IRQ Register i i tee E De eren i iet Ld teed F e da 52 Contents Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Chapter 1 Getting Started Introduction The Agilent E6171B Measurement Control Module is an instrument multiplexer and voltage current source module designed for automotive electronic test applications Key features of the module include An isolated voltage source An isolated current source with a programmable voltage limit SA 16 X 5 instrument multiplexer that multiplexes four analog buses plus Device Under Test DUT common Multiplexing for eight external triggers and eight VXIbus TTL triggers to and from each other or to and from the DUT An analog comparator with programmable thresholds whose output connects to the trigger multiplexer A programmable high voltage attenuator A amplifier with programmable gain that can amplify the output of an Agilent E6173A Arbitrary Function Generator module formerly the Agilent Z2471A via a step up transformer to provide output for simulating VRS Variable Reluctance Sensors signals A Programmable IRQ A programmable general purpose timer whose output also can be used to generate interrupts trigger delays and paci
16. REGISTER 16 BIT WORDS N 7 OFFSET X uh 3Eh IRQ C000 Pee ee eee es t FFFF P 38h Other Trigger Resources 7 36h TTL amp Ext Trig Dest for Trig2 7 b 34h TTL amp Ext Trig Source for Trig2 rs 32h TTL amp Ext Trig Dest for Trig1 E REGISTER E 30h TTL amp Ext Trig Source for Trig1 UR ee ADDRESS 2Eh Other Configuration SPACE 2Ch VII Source Configuration SPACE 2Ah ABus Interconnection 28h ABus4 to Instrument 1 16 49 152 y 26h ABus3 to Instrument 1 16 24h ABus2 to Instrument 1 16 X 22h ABus1 to Instrument 1 16 Ki 20h UUT Common to Instrument 1 16 N OEh Comparator DAC DCH Arb Amplifier DAC 0000 16 N OAh V I Clamp Dac Amp selector p 08h V I Amplitude DAC x 06h Timer Control 04h Status Control Base Address C000 logical adress 40 E br 02h Device Type 49 152 logical address 64 NL 90h Manufacturer ID Register Address Base Address Register Offset Measurement Control Module A16 Register Map Figure B 1 Register Locations Within the A16 Address Space Register Offset The offset fora specific register is that register s location in the block of 64 address bytes that belongs to the module For example the module s Status Control Register has an offset of 044 Continuing with the previous example whose base address was 1FDE00 when accessing this register you would add the offset to the base address to form the register address like this 1FDE00 04 LFDE04 or deci
17. SOURCE www artisantg com Both modes of operation are supported in the range from 20 ps to 655 37 ms programmable in steps of 10 us within 16 bits of resolution Either of two sources can start the general purpose timer counting loading the General Purpose Timer Register or the falling edge of a waveform from the trigger multiplexer applied to its trigger input Bit 8 ofthe Status Control Register see Appendix B selects which source is used The general purpose timer can generate a trigger output upon time out The output is a negative pulse of about 10 us duration The operating modes of the general purpose timer are summarized in Table 2 2 Table 2 2 Operating Modes of the General Purpose Timer Mode Started by Description one shot loading of One timing cycle per loading of the General Purpose register Reloading the register restarts Timer Register the timer immediately Useful for timing individual events like relay timing one shot trigger input One timing cycle per trigger input A new trigger input restarts the timer immediately even if it has not timed out from a previous trigger Useful for generating programmable trigger delays If a new trigger is received before the timer times out the timer is restarted repetitive time out of Free running timer New values can be previous count loaded into the General Purpose Timer Register at any time Use to generate pacing triggers or watch
18. Trig2 Trig1 TrigO Value state state state state state state state state The default value of this register at power on or after the module has been reset is 0000 TTL amp External Trigger Sources for TRIG2 Register state The value is the state of the bit the last time it was written to If the bit was not written to its value is the default from power on or reset VXIbus backplane and TRIG2 This register controls the selection of trigger sources for bus TRIG2 in the trigger multiplexer Bits 15 8 control connections between external trigger buses and TRIG2 and bits 7 0 control connections between the TTL level TTL amp External Trigger Sources for TRIG2 Register base 34 Bit 15 14 13 12 11 10 9 8 Purpose ExtTrig8 ExtTrig7 ExtTrig6 ExtTrig5 ExtTrig4 ExtTrig3 ExtTrig2 ExtTrig1 to TRIG2 toTRIG2 toTRIG2 toTRIG2 toTRIG2 toTRIG2 toTRIG2 to TRIG2 Value state state state state state state state state Bit 7 6 5 4 3 2 1 0 Pur VXITTL VXITTL VXITTL VXITTL VXITTL VXITTL VXITTL VXITTL pose Trig7 Trig6 Trig5 Trig4 Trig3 Trig2 Trig1 TrigO to TRIG2 to TRIG2 to TRIG2 to TRIG2 to TRIG2 to TRIG2 to TRIG2 to TRIG2 Value state state state state state state state state The default value of this register at power on or after the module has been reset is 0000 TTL amp External Trigger Destinations for TRIG2 Register Ap
19. United States and Canada Test and Measurement Call Center 800 452 4844 toll free in US Europe 41 22 780 8111 Japan Measurement Assistance Center 81 0426 56 7832 Latin America 305 269 7548 Asia Pacific 85 22 599 7777 Safety and Support Information Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Declaration of Conformity According to ISO IEC Guide 22 and EN 45014 Manufacturer s Name Agilent Technologies Loveland Manufacturing Center Manufacturer s Address 815 14th Street S W Loveland Colorado 80537 Declares that the product Product Name Agilent Technologies E617B Measurement Control Module Model Number Agilent E6171B Product Options All Conforms to the following Product Specifications Safety IEC 61010 1 1990 A2 1995 EN61010 1 1993 A2 1995 CSA C22 2 1010 1 1992 UL 3111 CISPR 11 1990 EN55011 1991 Group 1 Class A EN50082 1 1992 IEC 61000 4 2 1995 4kV CD IEC 61000 4 3 1995 3V m IEC 61000 4 4 1995 1 kV Power line Supplementary Information This product complies with the requirements of the Low Voltage Directive 73 23 EEC inclusive 93 68 EEC This product also wherewith complies with the protection requirements of The EMC Directive 89 336 EEC and carries the CE marking accordingly Attestation is provided according to article 10 2 of the Directive by a Technical Construction File Technical File
20. dog timers repetitive trigger input Free running timer started by the trigger input It resynchronizes with trigger Use to generate timing triggers and interrupts You can selectively route the general purpose timer s output to any of three destinations By default to the Status Register see Appendix B The trigger multiplexer Any of seven programmable interrupts IRQ1 through IRQ7 Which destination is used is determined by the contents of the TRIG 1 amp 2 Source amp Destination Selection registers see Appendix B 22 Understanding the Agilent E6171B Chapter 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com The proper order for setting up the timer is to first set the mode and source then load the timing delay Digital Trigger The digital trigger serves as an isolator to convert the earth referenced trigger to a DUT referenced trigger Below is a diagram of how the floating referenced trigger is generated Note that the Maximum allowable external pull up is 30 Volts Exceeding this value will cause the PCTR positive coefficient thermal resistor in the output series protection circuit to effectively become an open circuit until the circuitry cools down 5V 30V max pull up Internal Pull Up Resistor Optional User Installed Digital External Pull up Digital Optical Protection Resistor Trigger In
21. helps the module thermally stabilize quickly If left in its power on state for extended time periods the module may take several minutes to stabilize after the software resets it Software Reset 4 software reset performed through the Agilent TestExec SL software the following functions Performs a hardware reset Selects the LV amplifier and sets the Amplitude to zero Clamps the comparator input Sets the nominal clamp voltage on the DAC to 0 V 26 Understanding the Agilent E6171B Chapter 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Chapter 3 Adjusting the Agilent E6171BE6171B Measurement Control Module Using This Chapter This chapter provides procedures for adjusting the Measurement Control Module It contains the following sections Adjusting the VI VHI and VLO front panel potentiometers Other Adjustments Adjusting the VI Pots The Measurement Control Module has two field adjustable potentiometers accessible at the lower front panel of the module The upper adjustment is the VI low voltage IGAIN and the lower adjustment if for the VI high voltage IGAIN Other Adjustments There are three access holes on the side cover for three other adjustable potentiometers One of the pots is for adjusting the maximum VI current for the High Voltage circuit and the other two are for adjusting the VI maximum current for the Low voltage circuit Thes
22. module requires one 64 byte 404 block of addresses the A16 address space between C000 and FFFF can accommodate as many as 255 VXIbus modules Given that the address space of each module is 64 bytes the address of a module is determined by its logical address set by the address switches on the module multiplied by an offset of 64 404 Suppose the A16 address space began at 1F0000j and the Measurement Control Module s address was 120 78 Then the addresses of the module s internal registers i e the base address of the module would start at 1FDEO0 like this 1F0000 C000 78 4054 1FDE00j When the A16 address space is outside the system controller the base address of the Measurement Control Module is computed as Al6base C000 LADDR 40 or decimal A 16pase 49 152 LADDR 64 where C000 49 152 is the starting location of the register addresses LADDR is the module s logical address and 64 is the number of address bytes per VXIbus device For example if the Measurement Control Module s logical address LADDR was set to 120 784 it would have a base address of Al16base C000 785 404 C000 1E00 DE00 or decimal Register Definitions 35 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Al6pase 49 152 120 64 49 152 7 680 56832 FFFF 18 s
23. the functionality of the low and high voltage amplifiers used in the V I source 46 Register Definitions Appendix B Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com V I Source Configuration Register base 2C Bit 15 14 13 12 Purpose Enable current sourcein Enable current source in Enable current Connect output of low low voltage mode with low voltage mode with sensing for low voltage amplifier to sec positive feedback negative feedback voltage amplifier ondary of ARB amplifier transformer Value state of relay Bit 11 10 9 8 Purpose Enable current source Connect output of high Enable high voltage Enable current sensing in high voltage mode voltage amplifier to mode with feedback for high voltage with negative matrix relays on amplifier feedback ABus1 ABus4 VISrcHi Value state of relay Bit 7 6 5 4 Purpose Connect output of low Use 10 ohm resistor for Enable current source Use 100 ohm resistor voltage amplifier to pri current sensing with low in low voltage mode for current sensing with mary of ARB amplifier voltage amplifier with positive low voltage amplifier transformer feedback Value state of relay Bit 3 2 1 0 Purpose Use 1K ohm resistor for Use 10K ohm resistor Enable low voltage Connect output of low current sensing with low for current sensing
24. transformer on the Measurement Control Module lets you amplify the ARB s signal to 80 volts peak to simulate VRS Variable Reluctance Sensor signals An ARB DAC also allows for rapid amplitude programming for different gains of the same waveform You can use the analog comparator to condition trigger signals from the DUT to make them compatible with TTL levels see Appendix A for specifications The analog comparator has two ranges with programmable thresholds of 20 volts and 200 volts for the low and high ranges respectively The general purpose timer is used to Time single events such as the open close time of relays in the module Synchronize repetitive events such as triggering a measurement at a regular interval Generate interrupts Generate Trigger delays The timer supports two kinds of operation which are One shot where the counter stops upon reaching the terminal value for which it is programmed i e achieving its maximum count This value is stored in the General Purpose Timer Register see Appendix B Repetitive or free running where the counter reaches the terminal value for which it is programmed reloads itself with the current contents of the General Purpose Timer Register and begins counting again In repetitive mode the timer is always running Understanding the Agilent E6171B Measurement Control Module 21 Artisan Technology Group Quality Instrumentation Guaranteed 888 88
25. with any energized conductor even if one of the protective means fails to work as intended For example the inner side of a case cabinet door cover or panel can be covered with an insulating material as well as routing the test cables to the module s front panel connectors through non conductive flexible conduit such as that used in electrical power distribution Safety Symbols and Regulatory Markings Symbols and markings on the system in manuals and on instruments alert you to potential risks provide information about conditions and comply with international regulations Table 1 defines the symbols and markings you may encounter Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Table1 Safety Symbols and Markings Safety symbols Warning risk of electric shock Caution refer to accompanying documents Alternating current Both direct and alternating current Earth ground terminal Protective earth ground terminal Frame or chassis terminal Terminal is at earth potential Used for measurement and control circuits designed to be operated with one terminal at earth potential Switch setting indicator O Off On Standby supply units with this symbol are not completely disconnected from ac mains when this switch is off To completely disconnect the unit from ac mains either disconnect the power cord or have a qualified electrician
26. written consent from Agi lent Technologies Inc as governed by United States and international copyright laws Documentation History All Editions and Updates of this manual and their creation date are listed below The first Edition of the manual is Edition 1 The Edition number increments by 1 whenever the manual is revised Updates which are issued between Editions contain replace ment pages to correct or add additional information to the current Edition of the manual Whenever a new Edition is cre ated it will contain all of the Update infor mation for the previous Edition Each new Edition or Update also includes a revised copy of this documentation history page Edition 1 E3750 90000 prelim July 1994 Edition 2 E6171 90000 prelim June 1995 Edition 3 E6171 90001 February 1996 Edition 4 E6171 90002 May 1996 Edition 5 E6171 90022 June 2000 Edition 6 E6171 90032 August 2003 Manual Part Number E6171 90032 Printed in USA Agilent Technologies Inc 1601 California Street Palo Alto CA 94304 USA Warranty The material contained in this docu ment is provided as is and is sub jectto being changed without notice in future editions Further to the max imum extent permitted by applicable law Agilent disclaims all warran ties either express or implied with regard to this manual and any infor mation contained herein including but not limited to the implied warran ties of merchantability and fitne
27. 7 Trig6 Trig5 Trig4 Trig3 Trig2 Trig1 TrigO to TRIG1 to TRIG1 to TRIG1 to TRIG1 to TRIG1 to TRIG1 to TRIG1 to TRIG1 Value state state state state state state state state The default value of this register at power on or after the module has been reset is 0000 48 Register Definitions state The value is the state of the bit the last time it was written to If the bit was not written to its value is the default from power on or reset Appendix B Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TTL amp External Trigger Destinations for TRIG1 Register TTL level VXIbus backplane and TRIGI This register controls the selection of trigger destinations for bus TRIGI in the trigger multiplexer Bits 15 8 control connections between external trigger buses and TRIGI and bits 7 0 control connections between the TTL amp External Trigger Destinations for TRIG1 Register base 32 Bit 15 14 13 12 11 10 9 8 Purpose TRIG1to TRIG1to TRIG1to TRIG1to TRIG1to TRIG1to TRIG1 to TRIG1 to ExtTrig8 ExtTrig7 ExtTrig6 ExtTrig5 ExtTrig4 ExtTrig3 ExtTrig2 ExtTrig1 Value state state state state state state state state Bit 7 6 5 4 3 2 1 0 Pur TRIG1 to TRIG1 to TRIG1 to TRIG1 to TRIG1 to TRIG1 to TRIG1 to TRIG1 to pose VXITTL VXITTL VXITTL VXITTL VXITTL VXITTL VXITTL VXITTL Trig7 Trig6 Trig5 Trig4 Trig3
28. 8 when the safety interlock is enabled i e Bit 1 1 and FCBA when it is not 38 Register Definitions undefined All undefined bits appear as 1 when read Writing to an undefined bit has no effect MODID 0 indicates the module is present Revision 1 Agilent E6171A 0 Agilent E6171B Timer Mode 0 indicates single which is the default and 1 indicates repetitive or free running Timer Source The source of the stimulus that starts the timer A 0 indicates the timer is started by loading the General Purpose Timer Register if Timer Mode 0 or restarted by timing out if Timer Mode 1 A 1 indicates that a trigger event starts the timer BUSY 0 implies the relay state is undefined Defaults to 1 Ignore Interlock 0 indicates the interlock is active Defaults to 0 High Voltage 0 indicates high voltage is disabled Defaults to 0 READY 1 indicates the module powered up successfully PASSED 1 indicates the module powered up successfully Interlock Event 0 indicates no event and 1 indicates an event was detected Defaults to 0 if the interlock is jumpered enabled IRQ Pending A 0 indicates that an IRQ is pending and a 1 that it is not This bit monitors the status of three possible sources of interrupts in the Measurement Control Module The selection of those sources is controlled elsewhere in the IRQ Register When the IRQ Pending bit is set it indicates that an inter
29. A 1 opens all relays a 0 causes no change OAR clears itself upon execution High Voltage 0 indicates high voltage is disabled Defaults to 0 Clear Interlock A 1 clears an interlock event a 0 retains an interlock event This bit clears itself upon execution SYSFAIL inhibit A 1 means inhibit a 0 enables SYSFAIL Because this module does not drive SYSFAIL this bit does nothing RESET A 1 causes reset a 0 causes no change RESET clears itself upon execution The reset state of this module is all relays open the interlock 1s enabled IRQs are disabled DAC values are set to O the timer mode is single and the timer source is the loading of the General Purpose Timer Register state The value is the state of the bit the last time it was written to If the bit was not written to its value is the default from power on or reset Register Definitions 39 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com General Pu lDOSe The General Purpose Timer Register is a read write register that Timer Register Controls the terminal value maximum count of the timer Returns the counting status of the timer when queried Starts the timer counting when loaded with a new value General Purpose Timer Register base 06 Bit 15 0 Purpose StartCount in write mode ActualCount in read mode Value count The default state of this regist
30. AC Value X state d The default value of this register at power on or after the module has been reset is 0000 undefined All undefined bits appear as 1 when read Writing to an undefined bit has no effect state The value is the state of the bitthe last time it was written to If the bit was not written to its value is the default from power on or reset The Comparator DAC Register is a read write register that controls the DAC that sets the threshold for comparisons done with the analog comparator in this module The output voltage of the DAC is Vdac gain programmed value offset Note that the actual threshold of the comparator also depends upon which comparator attenuator is used The nominal values for gain and offset used in the equation above are 20 V Range V Threshold 184 8X10 Programmed Value 23 75V 200 V Range Vrpreshoid 1 848 Programmed Value 237 5 V The actual values are determined during calibration Comparator DAC Register base OEh Bit 15 8 7 0 Purpose undefined Sets programmed value of Comparator DAC Value X state i The default value of this register at power on or after the module has been reset is 0000 undefined All undefined bits appear as 1 when read Writing to an undefined bit has no effect state The value is the state of the bit the last time it was written to If the bit was not written to its value is the default
31. IN AN EXPLOSIVE ATMOSPHERE Do not operate the system in the presence of flammable gases or flames If the equipment in this system is used in a manner not specified by Agilent Technologies the protection provided by the equipment may be impaired Cleaning Instructions Clean the system cabinet using a soft cloth dampened in water WARNING DO NOT REMOVE ANY SYSTEM COVER Operating personnel must not remove system covers Component replacement and internal adjustments must be made only by qualified service personnel Equipment that appears damaged or defective should be made inoperative and secured against unintended operation until they can be repaired by qualified service personnel Environmental Conditions Unless otherwise noted in the specifications this system is intended for indoor use in an installation category II pollution degree 2 environment It is designed to operate at a maximum relative humidity of 80 and at altitudes of up to 2000 meters Refer to the specifications tables for the ac mains voltage requirements and ambient operating temperature range Before applying power Verify that all safety precautions are taken Note the external markings described in Safety Symbols and Regulatory Markings on page 4 Safety and Support Information 3 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Ground the System To minimize shock hazard th
32. Isolator Circuits Trigger Out UUT Ground Figure 2 4 Digital Trigger Block Diagram Chapter 2 Understanding the Agilent E6171B Measurement Control Module 23 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Prog rammable The Measurement Control Module has a programmable attenuator between Attenuator the DUT input and the digitizer Figure 2 5 is a graph of the attenuator transfer function The programmable knee can be set from 1 volts to 10 volts 2 5 volts is the default Voltages near the knee voltage are not known with full accuracy and should not be measured with the attenuator For example valid ranges for knee voltages of 2 5 volts are 2 0 volts unattenuated and 120 200 volts attenuated Vour ViN ViN d 2 4 l 6 V V KNEE OUT VKNEE Figure 2 5 Programmable Attenuator Transfer Function Figure 2 6 is a simplified schematic of the Programmable Attenuator input circuitry As the figure indicates adding an external 20 0 Kohm resistor doubles the impedance above the knee PNE E Vou Val TORS 19 0K 20 0K Some signals characteristic of automotive test involve orders of magnitude difference in amplitude making comparable or simultaneous measurements difficult One specific example is the saturation and flyback voltages in an automotive ignition system The Programmable Attenuator is available so that a units saturatio
33. Low voltage Register only The DAC bits control an eight bit DAC that sets the voltage compliance for both the low and high voltage VI amplifiers as well as the Knee voltage of the programmable attenuator These functions are mutually exclusive The clamp voltage of the DAC is Vdac gain programmed value offset The nominal values for gain and offset are given below The actual values are determined during calibration LVcLamp 78 13x10 SETTING 2 Vp Volts Appendix B Register Definitions 41 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com HV camp 430x10 SETTING 11 Vp Volts You specify the programmed value via bits 0 through 7 in this register The four remaining bits bits 8 11 control the amplifier selection The programmable attenuators knee can be varied from 1 to 10 volts The attenuator passes the input voltage at 1 1 until the input reaches the knee then any voltages above the knee level are attenuates at 20 1 The equation for setting the value of the attenuators knee is ATTENUATOR KNEE 439 06x10 SETTING Vp Volts V I Clamp Attenuator Knee and DAC amp Amplifier Selector Register base Aj Bit 15 12 11 10 9 8 7 0 Purpose undefined Connects input Connects input Connects Connects input Sets value of of low of low input of high of high voltage Vcr Awp for V I voltage ampli voltageamplifier vol
34. Module Specifications 33 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Replacement Strategy The replacement strategy depends on the application If some relays are used more often or at a higher load than the others the relays can be individually replaced as needed If all the relays see similar loads and switching frequencies the entire circuit board can be replaced when the end of relay life approaches The sensitivity of the application should be weighed against the cost of replacing relays with some useful life remaining Note Relays that wear out normally or fail due to misuse should not be considered defective and are not covered by the products warranty 34 Agilent E6171B Measurement Control Module Appendix A Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Appendix B Register Definitions Addressing the Registers 16 Address Space Outside the System Appendix B Controller To access a specific register for either read or write operations you must use its register address Register addresses for V XIbus plug in modules reside in an address space called A16 whose size is PPFP The exact location of the A16 address space within a V XIbus master s memory map depends on the system resource manager VXIbus modules are addressed at locations above C000 within the A16 address space Because each
35. Number 95 0900 002 TCF Rev C Dated 28 June 1999 A Technical Report Certificate has been issued by the following appointed Competent Body namely KEMA Registered Quality Nederland B V Utrechtseweg 310 6812 AR Arnhem 6800 ET Arnhem The Netherlands Certificate Number 71301 KRQ EMC 97 4165 Dated February 18 1997 June 28 1999 For Compliance Information ONLY contact Australian Contact Product Regulations Manager Agilent Technologies Australia Ltd 31 41 Joseph Street Blackburn Victoria 3130 Australia European Contact Your local Agilent Technologies Sales and Service Office or Agilent Technologies GmbH Department HQ TRE Standards Europe Herrenberger Stra e 130 D 71034 B blingen FAX 49 7031 14 3143 USA Contact Product Regulations Manager Agilent Technologies Company P O Box 301 Mail Stop BU212 Loveland CO 80537 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Notes Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Contents Declaration of Conformity 2 eh erred rite side RI UA Sa e Eae R e ie urea 7 Chapter 1 Getting Started E 11 Tit OCU CU OM E 11 Warnings and Caution ice terret ingen EEN nat ra epe dea edad eh denen ie 13 Setting the Address Switch tete t oa ete b e De E D eed 14 Installing in a VXI
36. The Manufacturer ID Register is a 16 bit read only register at address 00 with the most significant byte MSB at 00 and the least significant byte at 01 4 Reading this register returns the Agilent identification FFFF The Device Type Register is a 16 bit read only register at address 02 with the most significant byte MSB at address 02 and the least significant byte LSB at address 034 Reading this register returns 02244 which uniquely identifies this module as an Agilent E6171B The Status Control Register is actually two independent registers at a single address The readable or status portion of the register returns information about the current state of the module The writable or control portion of the register controls various functions of the module The bit fields of both Register Definitions 37 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com registers are described below along with the definitions of terms that apply to them Status Register base 044 Bit 15 14 13 11 10 9 8 7 Purpose undefined MODID undefined Revision Timer Mode Timer Source BUSY Value 1 state 111 state state state state Bit 6 5 4 3 2 1 0 Purpose Ignore undefined High READY PASSED Interlock IRQ Interlock Voltage Event Pending Value state 1 state 1 1 state state The default state of this register at power on is FCB
37. e digital to 40 e to trigger output E b l software poll ABus1 ABus4 to Agilent E6172A modules EN eL 1 Trigger Multiplexer Figure 2 3 Bus Structure of the Trigger Multiplexer The trigger multiplexer contains two trigger buses nominally known as TRIGI and TRIG2 used to route signals Any of the eight bi directional TTL level triggers at the VXIbus backplane can connect to either of the trigger multiplexer s buses and can be used as trigger sources or trigger destinations The connections are made electronically through an open collector bus If any selected input is low then the bus is low Otherwise the bus is high In a similar fashion any of the eight external trigger lines available on the module s front panel can connect to either of the two multiplexer buses The routing and configuration of all sixteen of the lines described above is controlled by writing control data to the various Trigger Configuration Registers see Appendix B There are three other trigger sources you can connect to the trigger buses The first timer output in the diagram is an output from the general purpose timer Its routing to TRIG1 or TRIG2 is controlled by bits 1 and 4 of the Other Trigger Resources Register see Appendix B The Understanding the Agilent E6171B Measurement Control Module 19 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com
38. e bit 7 is write only and bits 8 10 are read only undefined All undefined bits appear as 1 when read Writing to an undefined bit has no effect IRQ Bit Status Reading this bit returns the status of the IRQ Bit TMR Done Status Reading this bit returns the status of the general purpose timer A 1 indicates the timer has finished counting and a 0 indicates it still is counting INTRLCK Status Reading this bit returns the status of the safety interlock for the high voltage amplifier A 1 indicates the interlock is open and a 0 indicates it is closed IRQ Bit This bit is one of the three sources of interrupts Unlike the other two sources TMR and INTRLCK this source is not hardware but software Writing a 1 to this bit generates an interrupt and once written the bit is self 1 IRQ7 has the highest priority with the priority of the other IRQs following in descending order 2 Note that there is an OR relationship among the interrupts i e when multiple sources are enabled any of them can generate an interrupt Appendix B Register Definitions 51 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com clearing Writing a 0 does not generate an interrupt This bit is intended for diagnostic purposes This is a write only bit and the hardware will always read the bit value as 1 IRQ Bit Enable Writing a 1 to this bit enables the IRQ bit as the s
39. e system chassis must have a hard wired connection to an electrical protective earth ground The system must also be connected to the ac power mains through a power cable that includes a protective earth conductor The power cable ground wire must be connected to an electrical ground safety ground at the power outlet Any interruption of the protective grounding will cause a potential shock hazard that could result in personal injury Fuses Use only fuses with the required rated current voltage and specified type normal blow time delay Do not use repaired fuses or short circuited fuse holders To do so could cause a shock or fire hazard Operator Safety Information MODULE CONNECTORS AND TEST SIGNAL CABLES CONNECTED TO THEM CANNOT BE OPERATOR ACCESSIBLE Cables and connectors are considered inaccessible if a tool e g screwdriver wrench socket etc or a key equipment in a locked cabinet is required to gain access to them Additionally the operator cannot have access to a conductive surface connected to any cable conductor High Low or Guard Safety and Support Information ASSURE THE EQUIPMENT UNDER TEST HAS ADEQUATE INSULATION BETWEEN THE CABLE CONNECTIONS AND ANY OPERATOR ACCESSIBLE PARTS DOORS COVERS PANELS SHIELDS CASES CABINETS ETC Verify there are multiple and sufficient protective means rated for the voltages you are applying to assure the operator will NOT come into contact
40. e Instrument 1 16 to DUT Common Register to close the relay that connects DVM Low to DUT Common 2 Interru pts The three potential sources of interrupts in the Measurement Control Module are An event associated with the high voltage amplifier s safety interlock An event associated with the output from the general purpose timer A programmable interrupt generated via software You can select which of these sources generates an interrupt and select which interrupt IRQ 1 through IRQ7 is generated by the source Interrupts are selected and controlled by the IRQ Register see Appendix B Chapter 2 Understanding the Agilent E6171B Measurement Control Module 25 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Power on State at power on or after setting resetting Bit 0 in the Control Register the Measurement Control Module is in its hardware reset state All internal registers are cleared All relay registers are cleared e all relays are open The high voltage interlock is enabled All IRQs are disabled All DACs are programmed to logical zero The general purpose timer is stopped its mode is set to one shot and its source is load All trigger sources and destinations are cleared Note Runthe Agilent TestExec SL software immediately after power on to reset the Agilent E6171B and all other instruments in the Agilent TS 5400 system This
41. e pots are intended for factory adjustments only DO NOT attempt to adjust these three potentiometers in the field Caution Unauthorized adjustment of these factory settings may allow excessive current flow in the circuitry possibly damaging the Agilent E6171B Measurement Control Module or its components Chapter 3 Adjusting the Agilent E6171BE6171B Measurement Control Module 27 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Notes 28 Adjusting the Agilent E6171BE6171B Measurement Control Module Chapter 3 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Appendix A Agilent E6171B Measurement Control Module Specifications General Module Size Device Type C Size VXIbus register based A16 D16 static configuration Power requirements 5 and 12 Vdc Operating temperature 5 to 40 C Operating humidity 80 Relative Humidity 5 to 40 C External Instrument Multiplexer No of Analog Instrument Channels 16 Analog Channel Voltage Max 200 volts Resistance 1 Unbalanced Bandwidth 10 MHz Minimum Balanced Pair Bandwidth 5 MHz Minimum Relay Type dry reed Relay Life No load 1x10 operations Full load 1x10 operations Relay Switching Speed Close 500 uS Open 400 uS Relay Switching Characteristics 1 0 A carry 0 5 A while switching 7 5 Volt Amps max instantaneous switching
42. en Na WE IM Row31 A gt Aux32 kk OK Row31 5 UUT Common J1 Figure 2 1 Conceptual Overview of a Measurement Control Module with Agilent E6172A Modules 16 Understanding the Agilent E6171B Chapter 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 16 X 5 Instrument As many as sixteen external inputs to the Measurement Control Module can y p i be connected to any of the four analog columns or to the common DUT Multi plexer ground that exit this card via the ABus1 ABus4 You can use these inputs as follows Because the Agilent E1411 DMM is used to measure the output of the V I source the DMM must always be connected to external inputs 1 4 as DVM Hi DVM Lo Isource Hi and Isource Lo respectively The Measurement Control Module provides special routing for signals from the Agilent E6173A Arbitrary Function Generator Module which must always be connected to external inputs 5 amp 6 Hi and Lo respectively f a digitizer such as the Agilent E1429A is used in the system it should be wired to row 7 through 10 Finally row 11 and 12 are set aside for a counter such as the Agilent E1333A counter The external inputs 13 through 16 are undefined and can be used with any additional instruments Row 17 19 is not available and rows 20 through 32 have assigned uses already The Agilent E6171B can route any of the 16 external instr
43. er at power on or when the module has been reset is 0000 with the timer stopped At other times the state of this register is FFFFy if the timer is stopped j Writing to bits in this register controls the module and reading the bits returns their current values When programming the delay time counted by the timer is StartCount 65537 Delay 10 where Delay is the desired delay in seconds The delay can be in the range from 30 us to 655 38 ms with 10 us resolution which you specify as an integer from 0 to 65535 for StartCount Reading the status of this register returns the delay remaining before the counter reaches its terminal value as follows Delay 65537 ActualCount 105 where the value returned for Delay is an integer from 0 to 65535 This corresponds to a delay in the range from 20 us to 65 537 sec with 10 us resolution DAC Control The DAC Control registers control various aspects of the operation of the Regi sters V I source in the module They are individually described next VI Amplitude DAC The V I Amplitude DAC Register is a read write register that controls the Register DAC whose output drives both the high and low voltage amplifiers The V I source in this module consists of the DAC plus amplifier combination The nominal values for gain and offset in both voltage and current modes is given below The V I values can be calculated from the equation V I dac gain programmed value offset
44. from power on or reset Register Definitions 43 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Relay Registers Instrument Interconnection Registers 44 Register Definitions Relay registers directly control or return the status of relays in this module All relay control signals use positive true logic i e 0 is open and 1 is closed Reading the status of these registers returns to status of the relay drive voltage Issuing an OAR command or resetting the module opens all relays and clears all control registers The Instrumentation Interconnection Registers are read write registers that directly control or report the current status of all user controllable relays in the module They are Instrument 1 16 to DUT Common This register controls the connections between common ground on the DUT and the analog buses to which external instruments can be connected If the relay associated with a given instrument bus is closed then DUT common is connected to that bus Instrument 1 16 to ABus1 Instrument 1 16 to ABus2 Instrument 1 16 to ABus3 Instrument 1 16 to ABus4 These registers control the connections between ABus1 ABus4 that connect the Measurement Control module with one or more Agilent E6171B modules and the analog buses to which external instruments can be connected If the relay associated with a given analog bus is closed then that column is connected t
45. install an external switch Sorrera eS Regulatory Markings ce The CE mark is a registered trademark of the European Community The CSA mark is a registered trademark of the Canadian Standards SRo Association Fv N10149 The C tick mark is a registered trademark of the Spectrum Management KA Agency of Australia This signifies compliance with the Australian EMC Framework regulations under the terms of the Radio Communications Act of 1992 ISM 1 A This text indicates that the product is an Industrial Scientific and Medical Group 1 Class A product CISPR 11 Clause 4 Safety and Support Information 5 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Service and Support 6 Any adjustment maintenance or repair of this product must be performed by qualified personnel Contact your customer engineer through your local Agilent Technologies Service Center Agilent on the Web You can find information about technical and professional services product support and equipment repair and service on the Web http www agilent com Click the link to Test amp Measurement Select your country from the drop down menus The Web page that appears next has contact information specific for your country Agilent by Phone If you do not have access to the Internet call one of the numbers in Table 2 Table2 Agilent Call Centers and Regional Headquarters
46. ister This read write register controls the connections between the four columns on ABus1 ABus 4 and V ISrcHi the output of the V I source V ISrcLo the return connection of the V I source AComp the input to the analog comparator TriggerOut the trigger output to pins on the DUT Setting a bit to 1 closes the indicated relay and makes a connection between the ABus and a resource For example setting bit 8 connects V ISrcHi to ABus3 Column Interconnection Register base 2A Bit 15 14 13 12 Purpose TriggerOut AComp V ISrcLo V ISrcHi to ABus4 to ABus4 to ABus4 to ABus4 Value state of relay Bit 11 10 9 8 Purpose TriggerOut AComp V ISrcLo V ISrcHi to ABus3 to ABus3 to ABus3 to ABus3 Value state of relay Bit 7 6 5 4 Purpose TriggerOut AComp V ISrcLo V ISrcHi to ABus2 to ABus2 to ABus2 to ABus2 Value state of relay Bit 3 2 1 0 Purpose TriggerOut AComp V ISrcLo V ISrcHi to ABus1 to ABus1 to ABus1 to ABus1 Value state of relay The default value of this register at power on or after the module has been reset is 0000 state of relay The value is the state of the bit which determines the state of the relay the last time it was written to If the bit was not written to its value is the default from power on or reset V I Source Configuration Register This read write register controls much of
47. it 0 IRQ Pending in the Status Control Register to deter mine when an interrupt occurs 4 Read bits 10 8 to determine which interrupt occurred Note that interrupts in the IRQ Register are automatically cleared upon being acknowledged via an IACK bus cycle on the V XIbus 52 Register Definitions Appendix B Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com A rtisan Artisan Technology Group is your source for quality Fra op new and certified used pre owned equipment FAST SHIPPING AND SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT DELIVERY Experienced engineers and technicians on staff Sell your excess underutilized and idle used equipment TENS OF THOUSANDS OF at our full service in house repair center We also offer credit for buy backs and trade ins IN STOCK ITEMS www artisantg com WeBuyEquipment EQUIPMENT DEMOS HUNDREDS OF InstraV ea REMOTE INSPECTION LOOKING FOR MORE INFORMATION MANUFACTURERS Remotely inspect equipment before purchasing with Visit us on the web at www artisantg com 7 for more our interactive website at www instraview com 7 information on price quotations drivers technical LEASING MONTHLY specifications manuals and documentation RENTALS ITAR CERTIFIED yop aed Contact us 888 88 SOURCE sales artisantg com www artisantg com
48. ity hysteresis 0 5 Vpp max 0 1 Vpp min 1 All trigger timing specifications except comparator threshold are from 1 5V driven edge to 1 5V driven edge All comparator timing specifications are referenced to the input crossing the nominal programmed threshold at 85 V uS with 1V overdrive for the 20V range or 10V overdrive for the 200V range 32 Agilent E6171B Measurement Control Module Appendix A Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Relay Life Digital Trigger Output Nominal Internal Pull up 5V Sink Current 10 mA Vj xX0 4Vdc or 150mA V x1Vdc Maximum External Pull up Voltage 30 Vdc General Purpose Timer Resolution 10uS typical Range 20uUS to 655 37mS Accuracy amp 0 02 96 10uS Programmable Modes one shot or programmable Programmable Start Events Software or Trigger Programmable Outputs Busy Bit in Status Register 10 uS Trigger Pulse or Interrupt IRQ Electromechanical relays are subject to normal wear out Relay life depends on several factors including loading and switching frequency Relay Load In general higher power switching reduces relay life In addition capacitive inductive loads and high inrush currents e g turning on a lamp or starting a motor reduces relay life Exceeding specified maximum inputs can cause catastrophic failures Switching Frequency Relay contacts heat when switched As the switching frequency increa
49. lifier includes a safety interlock that automatically disables the high voltage amplifier and opens all relays OAR on the board when the interlock circuit is broken i e the interlock must be enabled for 20 Understanding the Agilent E6171B Chapter 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ARB Features Analog Comparator General Purpose Chapter 2 Timer the high voltage amplifier to work See Chapter 1 Warnings and Cautions Interlock events are latched and indicated by an LED on the module s front panel You cannot close relays on the module during an interlock event A programmable override allows self tests or diagnostics if the physical interlock is not present The purpose of the interlock is to provide a means of prohibiting DUT access while dangerously high voltages may be present This can be accomplished for example by installing a DUT safety cover secured by a fixture screw and activating a limit switch Internally when the card is switched to the high voltage amplifier the card senses either an open or a short across the two interlock pins on the front panel connector J1 See Figure 2 1 on page 16 When an Agilent E6173A Arbitrary Function Generator Module is connected to external inputs 5 amp 6 the ARB can use the low voltage V I source as an amplifier current sensor which allows measuring the input capacitance of RFI filters Also a step up
50. mal 2 088 448 4 2 080 452 36 Register Definitions Appendix B Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Register Descriptions Manufacturer Identification Register Device Type Register Status Control Appendix B Register The Agilent E6171B module has the following registers Manufacturer ID Register base 005 Device Type Register base 024 Status Control Register base 044 Timer Control Register base 06 DAC Control Registers which are V I Amplitude DAC base 08 V I Clamp DAC amp Amplifier Selector base OA ARB Amplitude DAC base OCh Comparator DAC base Ou Relay registers which are DUT Common to Instrument 1 16 base 204 ABusl to Instrument 1 16 base 22 ABus2 to Instrument 1 16 base 244 ABus3 to Instrument 1 16 base 264 ABus4 to Instrument 1 16 base 28 ABus Interconnection base 2A V I Source Configuration base 2C Other Configuration base 2E TRIG 1 amp TRIG2 Source amp Destination Selection registers which are TTL amp External Trigger Source for TRIGI base 304 TTL amp External Trigger Destination for TRIGI base 32 TTL amp External Trigger Source for TRIG2 base 34 TTL amp External Trigger Destination for TRIG2 base 36p Other Trigger Resources base 38p IRQ Register base 3E
51. n and flyback voltages can be measured in the same measurement and with the same degree of resolution For example Suppose a DUT operates at 12 V It enters saturation at 0 2 V and the flyback voltage is 150 V If the programmable attenuator knee is set for 1 V all voltages above 1 V 24 Understanding the Agilent E6171B Chapter 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com are attenuated by a factor of 20 1 So the digitizer would see the following voltages Vinz12V Vdigit 1 V 0 05 11 V z 1 55 V Vinz0 2V Vdigit 0 02 V Vin 150 V Vdigit 1 V 0 05 149 V 8 45 V All voltages can now be easily measured by the digitizer without having to change the measurement range K39 VIN nee 190 kQ DUT e e e e e AAA oe Vo To Digitizer Zin 1 MQ 10 KQ Optional user installed series resistor and voltage limiting element These are fixture mounted electronics VKNEE VkNEE Vin MAX is limited to 200 Volts by the reed relays Figure 2 6 Simplified Attenuator Circuit Con necting DUT Although the DUT ground by default floats independently of chassis or system ground you can close relays and create a path that connects the two Ground to Chassis together First set bit O in the Other Configuration Register see Appendix Ground B which connects DVM Low external instrument 2 to chassis ground Then set bit 14 in th
52. ng Note The Agilent E6171A and E6171B are functionally equivalent The module was updated to the B version to improve overall manufacturability and calibration Getting Started 11 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com E3750 01203 0515 0430 E1400 61605 cable 6 to 32 Pin Matrix Module To E1411B DMM 10 To E6173 Arb 27 To E1429 Digitizer 11 To E1333 Counter 11 To Mux Unassigned 8 or 32 Not Available To Debug Panel 27 ABus1 ABus2 ABus3 ABus4 To Trig Mux 32 Trig 1 through Trig 4 To Trig5 amp 6 Instruments 32 To Trig7 Event Detector 11 To Trig7 Debug n 11 Interlock 8 OPEN Switch Set to 0 Off CLOSED Switch Set to 1 On Factory Default 3 TS 5450 One Mainframe 3 TS 5450 Two Mainframes 4 Logical Address Location 1 ETIN 4 d e 1 CLOSED Figure 1 1 Measurement Control Module LADD Switch Access 12 Getting Started Note that the Measurement Control Module has four LEDs on its front panel They are Accessed Failed IRQ Interlock This LED flashes when the module is accessed When lit this LED indicates either the module failed to power up correctly or the VCC is noisy When the module is powered up this LED remains lit until the VXIbus backplane is initialized When lit this LED indicates that an IRQ has been a
53. o that bus Instrument 1 16 to DUT Common Register base 20 Bit 0 15 Purpose Connect external instrument 1 16 to DUTCommon Value state of relay Instrument 1 16 to ABus1 Register base 22 Bit 0 15 Purpose Connect external instrument 1 16 to ABus1 Value state of relay Instrument 1 16 to ABus2 Register base 244 Bit 0 15 Purpose Connect external instrument 1 16 to ABus2 Value state of relay Appendix B Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Instrument 1 16 to ABus3 Register base 26 Bit 0 15 Purpose Connect external instrument 1 16 to ABus3 Value state of relay Instrument 1 16 to ABus4 Register base 28 Bit 0 15 Purpose Connect external instrument 1 16 to ABus4 Value state of relay i The default value of these five registers at power on or after the module has been reset is 0000p Bit place to instrument number mapping is bit 0 Inst 1 bit 1 Inst 2 and so on state of relay The value is the state of the bit which determines the state of the relay the last time it was written to If the bit was not written to its value is the default from power on or reset Appendix B Register Definitions 45 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ABus Interconnection Reg
54. of TRIG2 There are two rules you must following when using the trigger multiplexer 1 You can connect any input s i e trigger source to any output s or bi directional line s via a trigger path 2 You cannot connect more than two trigger paths at the same time i e you can connect one trigger path per trigger bus Isolated V I Source The V I source lets you source a voltage and measure the resultant current or source a current and measure the resultant voltage It consists of two separate amplifiers denoted low and high that share a common connection to the analog bus structure The low amplifier provides voltages in the range of 16 volts at up to 200 ma and the high amplifier provides voltages in the range of 100 volts at up to 20 mA see Appendix A for specifications Typical applications for the low voltage amplifier include I O pin parametrics of leakage bias current impedance threshold and clamp voltage The main application for the high voltage amplifier is verifying the presence of clamp diodes at the outputs of modules that drive inductive loads Both amplifiers can sense the amount of current flowing while forcing a constant voltage When the V I source is used to source a voltage the signal is routed to the external DVM to measure the current flow When the V I source is used to source a current the external DVM is used to measured the resultant voltage developed The high voltage amp
55. ourant sup rieures 8 A ou une nergie sup rieure 150 V A sont dangereux STATIC ELECTRICITY Static electricity is a major cause of component failure To prevent damage to the electrical components in the switch module observe anti static techniques whenever removing a module from the mainframe or whenever working on a module Getting Started 13 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Setting the Address Switch The logical address switch is factory set at 3 You may need to change the setting the during module installation Valid addresses are from 1 to 254 Figure 1 1 shows the module and the location of the address switches Installing in a VXI Mainframe The Agilent E6171B Measurement Control Module can be installed in any available mainframe slot except slot 0 The jumper cable that connects the Agilent E6171B to the first Agilent E6172A 32 Pin Matrix Module requires the two modules to be adjacent See Figure 1 2 Interconnection Column Cable ABus1 ABus4 with UUT Common Other VXI Modules E6172A E6172A bus sr V y Agilent E6171 e Agilent E6172 32 Pin Measurement Control Matrix Modules Module Figure
56. ource of the interrupt and writing a 0 disables it Timer Enable Writing a 1 enables output from the general purpose timer as the source of the interrupt and writing a O disables it INTRLCK Enable Writing a 1 to this bit enables the high voltage amplifier s safety interlock as the source of the interrupt and writing a 0 disables it IRQ Select Writing a value from 01 to 07 selects which IRQ receives the interrupt i e which IRQ is the output Although multiple interrupt sources are allowed there can be only one output NOTE Selecting an IRQ of 0 Zero is illegal according to the VXI specifications If an IRQ of 0 selected no interrupt will be generated state The value is the state of the bit the last time it was written to If the bit was not written to its value is the default from power on or reset Programming the Registers Programming the registers in this module tends to be straightforward because most of them open or close relays located at the intersection of buses Thus all you need to know is which bit in which register to set to 1 or 0 to make or break the desired connection The following topic describes how to program a register whose use is less obvious Using the IRQ vou might use the IRQ Register like this Register eg ste 1 Write to bits 2 0 to select which interrupt is to be the output for the interrupt event 2 Write to bits 5 3 to select a source for the interrupt 3 Monitor b
57. pendix B TTL level VXIbus backplane and TRIG2 Register Definitions This register controls the selection of trigger destinations for bus TRIG2 in the trigger multiplexer Bits 15 8 control connections between external trigger buses and TRIG2 and bits 7 0 control connections between the 49 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TTL amp External Trigger Sources for TRIG2 Register base 36 Bit 15 14 13 12 11 10 9 8 Purpose TRIG2to TRIG2to TRIG2to TRIG2to TRIG2to TRIG2to TRIG2to TRIG2 to ExtTrig8 ExtTrig7 ExtTrig6 ExtTrig5 ExtTrig4 ExtTrig3 ExtTrig2 ExtTrig1 Value state state state state state state state state Bit 7 6 5 4 3 2 1 0 Pur TRIG2 to TRIG2 to TRIG2 to TRIG2 to TRIG2 to TRIG2 to TRIG2 to TRIG2 to pose VXITTL VXITTL VXITTL VXITTL VXITTL VXITTL VXITTL VXITTL Trig7 Trig6 Trig5 Trig4 Trig3 Trig2 Trig1 TrigO Value state state state state state state state state The default value of this register at power on or after the module has been reset is 0000 Other Trigger Resources state The value is the state of the bit the last time it was written to If the bit was not written to its value is the default from power on or reset This register controls the selection of all trigger sources and destinations for
58. re poll By default external trigger outputs and the digital trigger output are pulled up to 5 volts However the digital trigger output can be pulled up to 30 volts via external source and pull up resistors for DUT triggering The digital trigger output from the trigger multiplexer can be connected to any of the columns on ABus1 ABus4 The digital trigger output and comparator input float to the DUT common You can connect more than one trigger source and trigger destination per trigger path to provide synchronization between devices For example a trigger source on the DUT could connect to both a counter and the external trigger port on a DVM and use only one path in the trigger multiplexer Figure 2 3 shows a conceptual diagram of the bus structure in the trigger multiplexer Arrows indicate whether the various lines connected to the trigger buses are inputs outputs or bi directional 18 Understanding the Agilent E6171B Chapter 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TTL VXIbus backplane bidirectional software programmable trigger TRIG 1 2 r YTS trigger input 4 Analog comparator inputs or outputs External Trigger Lines configurable as III timer output General purpose timer timer starter Chapter 2 _ 5 E 5 E Be
59. rupt has occurred but has yet to be acknowledged and cleared via an IACK bus cycle on the VXIbus Appendix B Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com state The value is the state of the bit the last time it was written to If the bit was not written to its value is the default from power on or reset Control Register base 04 Bit 15 10 9 8 7 6 Purpose undefined Timer Mode Timer Source undefined Ignore Interlock Value X state state X state Bit 4 3 2 1 0 Purpose OAR High undefined Voltage clear interlock SYSFAIL Inhibit RESET Value state state X state 1 state Appendix B undefined Writing to an undefined bit has no effect Writing to an undefined bit has no effect Timer Mode 0 indicates single which is the default and 1 indicates repetitive or free running Timer Source The source of the stimulus that starts the timer If the Timer Mode 0 writing a 0 here causes the timer to start whenever the General Purpose Timer Register is loaded If the Timer Mode 1 writing a 0 here causes the timer to restart whenever it times out Writing a 1 here causes trigger events to start the timer Ignore Interlock 0 indicates the interlock is active Defaults to 0 OAR Open All Relays
60. ses the contacts have less time to dissipate heat The resulting increase in contact temperature reduces relay life End of Life Detection Appendix A A preventative maintenance routine can prevent problems caused by unexpected relay failure The end of life of a relay can be determined by using one or more of the three methods described below The best method or combination of methods as well as the failure criteria depends on the application in which the relay is used Contact Resistance As the relay begins to wear out its contact resistance increases For the Agilent E6171B the total resistance measured through and external instrument connector to an analog bus connector is less than 1Q Since most of this resistance is trace resistance an increase of 1 or 20s indicates relay deterioration Stability of Contact Resistance The stability of contact resistance decreases with age Using this method the contact resistance is measured several 5 10 times and the variance of the measurement is determined An increase in the variance indicates deteriorating performance Number of Operations Relays can be replaced after a predetermined number of contact closures However this method requires knowledge of the applied load and life specifications for the applied load The expected life ofthe relays range from 1x10 operations at full load to 1x 105 operations for mechanical end of life no load Agilent E6171B Measurement Control
61. ss for a particular purpose Agilent shall not be liable for errors or for incidental or consequential damages in connection with the furnishing use or perfor mance of this document or of any information contained herein Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms the warranty terms in the sep arate agreement shall control Technology Licenses The hardware and or software described in this document are furnished under a license and may be used or copied only in accordance with the terms of such license Restricted Rights Legend If software is for use in the performance of a U S Government prime contract or sub contract Software is delivered and licensed as Commercial computer soft ware as defined in DFAR 252 227 7014 June 1995 or as a commercial item as defined in FAR 2 101 a or as Restricted computer software as defined in FAR 52 227 19 June 1987 or any equivalent agency regulation or contract clause Use duplication or disclosure of Software is subject to Agilent Technologies standard commercial license terms and non DOD Departments and Agencies of the U S Gov ernment will receive no greater than Restricted Rights as defined in FAR 52 221 19 c 1 2 June 1987 U S Govern ment users will receive no greater than Limited Rights as defined in FAR 52 227 14 June 1987 or DFAR 252 227 7015 b 2
62. sserted This LED flashes periodically during normal operation and during reset When lit this LED indicates the safety interlock feature is enabled which can be used to prevent access to dangerous high voltages Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Warnings and Cautions WARNING AVERTISSMENT Caution SHOCK HAZARD Only service trained personnel who are aware of the hazards involved should install remove or configure the switch module Before you remove any installed module disconnect AC power from the mainframe and from other modules that may be connected to the modules Do not defeat the Agilent E6171B Measurement Control Module Interlock feature with jumpers An interlocked safety cover is recommended to prevent operator access to electric shock hazard voltages and currents that may be applied to the unit under test Voltages greater than 30 Vrms 42 Vpk or 60 Vdc are considered hazardous voltages Current greater than 8 A or energy greater than 150 VA is also considered hazardous NE pas neutraliser le verrouillage de l appareil de mesure E6171B Un couvercle des s curit verrouillage est recommand afin de prot ger l op rateur des chocs lectriques caus s par des tensions ou des courants qui peuvent tre appliqu s l appareil l essai Les tensions superieures a 30 V eff 42 V crete ou 60 V c c sont dangereuses Un c
63. tage amplifier to out source VKNEE fier to output of to output of V I amplifier to put of V I DAC for Attenuator ARB amplifier DAC ground Value X 0 closed 0 closed 0 closed 0 closed state 1 open 1 open 1 open 1 open The default value of this register at power on or after the module has been reset is 0000 The only acceptable combinations of values for bits 11 8 are 1001 Normal LV AMP 1110 Normal HV AMP 0111 Normal ARB AMP 0110 ARB and HV AMP ARB Amplitude DAC Register 42 Register Definitions undefined All undefined bits appear as 1 when read Writing to an undefined bit has no effect state The value is the state of the bit the last time it was written to If the bit was not written to its value is the default from power on or reset The ARB Amplitude DAC Register is a read write register that controls the DAC that sets the gain of the ARB amplifier The output voltage of the DAC 1S Varb out gain programmed value Varb in The nominal value for ARB standard gain is 7 723 X 10 The actual value is determined during calibration The nominal value for the ARB transformer gain is 38 62 X 10 Appendix B Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Comparator DAC Appendix B Register ARB Amplitude DAC Register base 0C Bit 15 8 7 0 Purpose undefined Programmed value of ARB Amplitude D
64. uments as well as any of its internal resources V I source analog comparator digital trigger and attenuator to the five measurement buses and then to one or more Agilent E6172A 32 Pin Matrix Modules Trigger Multiplexer The trigger multiplexer lets you interconnect various combinations of external triggers V XIbus trigger lines and the output from the analog comparator on the Measurement Control Module This helps with complex DUT trigger scenarios with VXI instruments You can simultaneously connect two independent trigger paths Figure 2 2 is a simplified block diagram of the trigger MUX DEMUX arrangement The sources and destinations of the triggers are shown in greater detail in Figure 2 3 Trigger Inputs Trigger Outputs 0 a 4 0 rigger 9g 1 2 2 Trigger Trigger MUX DEMUX Trigger 2 18 18 Figure 2 2 Block Diagram of Trigger MUX DEMUX Arrangement Chapter 2 Understanding the Agilent E6171B Measurement Control Module 17 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Table 2 1 Trigger Sources and Destinations Trigger Sources inputs Trigger Destinations outputs 8 external triggers 8 external triggers on front panel of module on front panel of module 8 VXlbus TTL triggers 8 VXIbus TTL triggers output from analog comparator digital trigger output output from general purpose timer timer start software programmable trigger softwa
65. with mode with feedback voltage amplifier to voltage amplifier low voltage amplifier matrix relays on ABus1 ABus4 VISrcHi Value state of relay The default value of this register at power on or after the module has been reset is 0000 Other Configuration state of relay The value is the state of the bit which determines the state of the relay the last time it was written to If the bit was not written to its value is the default from power on or reset This register controls miscellaneous relays used to configure the module Register Other Configuration Register base 2E Bit 7 6 5 4 Purpose K39 Attenuator Out K38 VISrcHi to K37 Connect ARB1Hi K20 Divide the analog to ADC1Hi Attenuator In external instrument 5 comparator s input to ARB amplifier voltage by 100 Value state of relay Appendix B Register Definitions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Bit 3 2 1 0 Purpose K19 Divide the analog K18 Connect V ISrcLo K17 Connect output of K502 Connect DVMLo comparator s input volt to DUTCommon V I source to DUTCom external instrument 2 age by 10 mon to GND Value state of relay i Note actuation of K39 disables the high voltage clamp feature for calibration purposes of the attenuator The default value of this register at power on or after the module has been reset is FF00j Tri

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