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E1460A 64-Channel Relay Multiplexer Module User`s Manual

1. 9 LTHILTHTL G H LIH TH ad H m e HILTH Hs H Wu B 7 X z w p ES a Bank 5 ERE s EEEE sii d p length INE YN oe er Bank 0 3 Terminals Bank 4 7 Terminals Analog Bus Terminals Analog Bus Terminals 1 Wire Terminals Cable Test Terminal V 1 Wire Low Ref Terminal E Terminal Module Option Description Chapter 1 Figure 1 8 Standard Screw type Terminal Module Terminal module Option see Figure 1 9 provides a crimp and insert terminal module that allows you to crimp connectors onto wires which are then inserted directly into the multiplexer s mating connector See the pin out diagram Figure 1 10 to make the connections Table 1 3 shows the accessories that can be used with crimp and insert Option A3E Getting Started 23 Figure 1 9 Option Crimp and Insert Connector Table 1 3 Option A3E Terminal Module Accessories and Contact is not terminated Order 91510 Accessory Description Picture Specifications Single A crimp and insert contact is crimped Length 2 meters Conductor
2. base 2446 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Write Undefined CH6 CH5 CH2 CH1 CHO Read Always Returns FFFF 4 Write a 1 to close channel to COM Bank 3 Relay Control Register base 2616 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Write Undefined CH6 CH5 CH2 CH1 CHO Read Always Returns FFFF 4 Write a 1 to close channel to COM Bank 4 Relay Control Register base 2816 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Write Undefined CH6 CH5 CH2 CH1 CHO Read Always Returns FFFF 4g Write a 1 to close channel to COM Bank 5 Relay Control Register base 2 46 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Write Undefined CH6 CH5 CH2 CH1 CHO Read Always Returns FFFF 4 Write a 1 to close channel to COM Bank 6 Relay Control Register base 2C4g 15 14 13 12 11 10 9 8 7 6 5 4 2 1 0 Write Undefined CH6 5 CH3 CH2 CH1 CHO Always Returns FFFF 4g Write a 1 to close channel to COM Appendix B Register Based Programming 105 Bank 7 Relay Control Register base 2E46 15 14 13 12 11 10 B 8 7 6 5 4 3 2 1 0 Write Undefined CH6 CH5 4 CH3 2 CH1 CHO
3. nu Status Register Switch Location 2 Setting Interrupt Chapter 1 Priority Figure 1 3 Setting the Status Register Switch The multiplexer module generates an interrupt after a channel has been closed These interrupts are sent to and acknowledgments are received from the command module such as an 1406 via the VXlbus backplane interrupt lines For most applications where the multiplexer module is installed in a C Size mainframe the interrupt priority jumper does not have to be moved This is because the VXIbus interrupt lines have the same priority and interrupt priority is established by installing modules in slots numerically closest to the command module Thus slot 1 has a higher priority than slot 2 slot 2 has a higher priority than slot 3 etc See Figure 1 4 to change the interrupt priority You can select eight different interrupt priority levels Level 1 is the lowest priority and Level 7 is the highest priority Level X disables the interrupt The module s factory setting is Level 1 To change remove the 4 pin jumper from the old priority location and reinstall in the new priority location If the 4 pin jumper is not used the two jumper locations must have the same interrupt priority level selected Getting Started 17 NOTE interrupt priority jumper MUST be installed in position 1 when using the E1406 command module Level X interrupt priority
4. 1 2 3 4 5 6 or 7 or EXTernal can be enabled at one time Enabling a different output source will automatically disable the active output For example if TTLTrg1 is the active output and TTLTrg4 is enabled TTLTrg1 will become disabled and TTLTrg4 will become the active output Related Commands ROUTe SCAN TRIGger SOURCe OUTPut EXTernal STATe RST Condition OUTPut EXTernal STATe OFF disabled Enabling Trig Out Port OUTP EXT 1 Enable Trig Out port to output pulse after each scanned channel is closed OUTPut EXTernal STATe Example OUTPut EXTernal STATe queries the present state of the Trig Out port The command returns 1 if the port is enabled or 0 if disabled Query Trig Out Port Enable State This example enables the Trig Out port and queries the enable state The OUTPut command returns 1 since the port is enabled OUTP EXT ON Enable Trig Out port OUTP EXT Query port enable state OUTPut TTLTrgn STATe 70 Relay Multiplexer Command Reference OUTPut TTLTrgn STATe mode selects and enables which TTL Trigger bus line 0 to 7 will output a trigger when a channel is closed during a scan This is also used to disable a selected TTL Trigger bus line specifies the TTL Trigger bus line 0 to 7 and mode enables ON or 1 or disables OFF or 0 the specified TTL Trigger bus line Chapter 3 Parameters Comments Example Name Type Range
5. Module E1460A Multiplexer Voltmeter External Complete Trigger 3457A Multimeter HILO HILO Rear View Figure 2 7 Example Scanning Channels Using 3457A Multimeter 10 OUTPUT 722 TRIG EXT DCV MEM FIFO Configures the 3457A multimeter to external trigger to measure DCV and store readings 20 OUTPUT 70914 RST CLS Resets multiplexer module to a known state 30 OUTPUT 70914 OUTP ON Enables 1406 Trig Out port 40 OUTPUT 70914 TRIG SOUR EXT Sets switchbox trigger source to external triggering 50 OUTPUT 70914 SCAN MODE VOLT Sets switchbox measurement mode 60 OUTPUT 70914 5 10000 10015 Defines channel list 70 OUTPUT 70914 INIT Closes bank 0 channel 0 and enables the scan Causes a trigger output from E1406A Trig Out port which initiates the external multimeter to make a measurement When the measurement is complete the multimeter s VM Complete port sends a trigger to the multiplexer to advance the scan 80 Wait 1 Wait 1 second 90 Channels 1 to 16 Start counting loop 16 channels 100 ENTER 722 Results Enter measurement result 110 NEXT Channels Increment count and repeat measurement process for 16 measurements 120 END Terminate program 48 Using the Relay Multiplexer Chapter 2 Example Scanning Multimeter DCV Measurements This example uses the E1406A Command Module E1411B System Mult
6. Read Always Returns FFFF 4g Write a 1 to close channel to COM Channels 0990 0996 Relay Control Register base 3046 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Write Undefined CH6 CH5 4 CH3 2 CH1 CHO Read Always Returns FFFF 4 Write a 1 to close control relay 106 Register Based Programming Appendix B Programming Examples Appendix B NOTE Some examples follow to illustrate programming the multiplexer at the register level including the following examples Unless noted each program is a C language program Example Opening Closing Multiplexer Channels Example Using a Multimeter with the Multiplexer Example Reading Module ID Device Type and Status Registers Example Scanning Channels Example Scanning Channels HP UX The C language programs were developed using Turbo programming language on a PC connected via GPIB to the E1406A Command Module DIAG POKE and DIAG PEEK are the E1406A commands for direct register access The examples in this section illustrate methods required when using a VXI slot 0 interface other than the E1406A for which you would substitute the equivalent register access commands or functions If a E1406A was used can use the E1460A SCPI driver in the E1406A firmware register based programming is not required Register Based Programming 10
7. ERE eed e pua ud eic EG eod 70 TATE rm 70 narisana D 71 ROUTE er 72 ec REA EE NN 72 ROUTE be l c 74 IBI Dec ie I TR 75 ROME PONCHO e 76 OPEN D a D 77 ROUTE JOPEN e 79 SCAN RTT US 79 80 ROVTE 82 ROUTE SCAN PORT daa 82 ROUTE ISCAN PORTI e me TT PU 83 84 STATus DPERatiGh 2 adu 86 STATUS OPERaIDO uiia tortas iria Du aud aa did ERA der 86 SI aS Brena e 86 S TATUS OPERSWON EVEN 87 STAS PRE SEI a ene asp E 87 OY ee IN P EE EE E A E A E E E E 88 S AARSE Ea 88 SYGE OPON m 89 EET S 89 90 PMC AVN a TUE TU UT M
8. or VXI Controller Daisy Chain Cables E1400 61605 V Multiplexer Modules J Figure 1 7 Analog Bus Cable Connections 22 Getting Started Chapter 1 Configuring Terminal Modules Standard Terminal Module Description The E1460A 64 Channel Relay Multiplexer consists of a relay switch card and a standard screw type terminal module or a crimp and insert terminal module Option A3E See Figure 1 10 for the multiplexer s connector pin out that mates to the terminal module Figure 1 8 shows the standard screw type terminal module connectors and associated bank numbers channel numbers and line designations Use the following guidelines for wiring connections Be sure that wires make good connections on screw terminals Maximum terminal wire size is No 16 AWG When wiring all 64 channels a smaller gauge wire 20 22 AWG is recommended Wire ends should be stripped 6mm 0 25 in and tinned to prevent single strands from shorting to adjacent terminals
9. 0 42 Liter sec Terminals Screw type maximum wire size 16AWG Operating Temperature 0 55 Operating Humidity 65 RH 0 40 C Net Weight kg 1 6 1 Relays are subject to normal wear out based on the number of operations Appendix A Relay Multiplexer Specifications 97 Notes 98 Relay Multiplexer Specifications Appendix A Appendix Register Based Programming About This Appendix This appendix contains information for register based programming of the E1460A Relay Multiplexer module including Register 0 99 Register Descriptions 102 Programming 107 Register Addressing The Base Address Appendix B The E1460A Relay Multiplexer module is a register based module that does not support the VXIbus word serial protocol When a SCPI command is sent to the multiplexer the E1406A Command Module parses the command and programs the multiplexer at the register level Register based programming is a series of reads and writes directly to the multiplexer registers This increases throughput speed since it eliminates command parsing and allows the use of an embedded controller Also if slot 0 the resource manager and the computer GPIB interface are provided by other devices a C Size system can be downsized by removing the command module Register addr
10. 1 1 1 1 1 8 1 8 1 16 1 16 1 1 1 1 0 0 1x16 1x16 1x8 1x8 1 1 0 0 1 1 factory setting 20 Getting Started Chapter 1 Installing the 1460 can be installed any slot except slot 0 in a C Size VXIbus Multiplexer ina mainframe See Figure 1 6 to install the multiplexer in a mainframe Mainframe Set the extraction levers out 2 Slide the multiplexer into any slot ISS connectors touch except slot 0 until the backplane Extraction Levers 13 Seat the multiplexer into the mainframe by pushing in the extraction levers 4 Tighten the top and bottom screws to secure the multiplexer to the lt mainframe To remove the multiplexer from the mainframe reverse the procedure Figure 1 6 Installing the Multiplexer a VXIbus Mainframe Chapter 1 Getting Started 21 Connecting the Figure 1 7 shows how to connect the analog bus between multiple multiplexer modules and to the E1411B multimeter Use cable part number Analog Bus E1400 61605 to connect the analog bus to all the modules NOTE The analog bus can also be wired to the terminal module See Standard Terminal Module Description for more information Multimeter Module n Command Module
11. OPC Operation Complete Query Returns 1 to the output queue when all pending operations have completed Ensures synchronization between multiple instruments RCL Recall Saved State Recalls previously stored multiplexer configuration lt n gt 0 to 9 is location in memory where the desired previously stored set up is located RST Reset Opens all channels and invalidates current channel list for scanning Sets ARM COUN 1 TRIG SOUR OFF OUTP STAT OFF SCAN MODE NONE and SCAN PORT NONE SAV Save Current State Stores the current multiplexer configuration in memory Stores current settings of the channel states n 0 to 9 is the location in memory where the current set up is to be stored SRE lt mask gt Service Request Enable Sets the Service Request Enable Register bits and corresponding Serial Poll Status Register bits to generate a service request Enable an event by specifying its decimal weight for mask SRE Service Byte Enable Query Queries current contents in the Service Request Enable Register STB Status Byte Query Queries the current contents in the Status Byte Register TRG Trigger When scan is enable and trigger source to TRIG SOUR BUS use TRG to trigger the switchbox to advance the scan TST Self Test Query cc lt card Returns 0 if self test passes number with leading 0 Returns 01 for firmware error deleted Returns 02 for bus e
12. REGISTER OFFSET 16 3C 16 16 BIT WORDS Bank 9 Control Register Bank 7 Control Register REGISTER Bank 6 Control Register Bank 5 Control Register ADDRESS Bank 4 Control Register SEAGE Bank 3 Control Register Bank 2 Control Register Bank 1 Control Register Bank 0 Control Register 000 16 3 49 152 EN e Status Control Register Device Type Register ID Register E1460A A16 REGISTER MAP Base Address COOO46 Logical Address 64 16 or 49 152 Logical Address 64 10 Register Address Base address Register Offset Figure B 1 Registers Within A16 Address Space Outside the Command Module 100 Register Based Programming Appendix B A16 Address Space Inside the Command Module or Mainframe E1406A FFFFFF 16 ADDRESS MAP 16 When A16 address space is inside the 1406 Command Module see Figure B 2 the multiplexer s base address is computed as 1FC0004g LADDR 64 6 or 2 080 768 LADDR 64 19 where 1 00046 2 080 768 is the starting location of the VXI A16 addresses LADDR is the multiplexer s logical address and 64 is the number of address bytes per register based device The multiplexer s factory set logical address is 112 If this address is not changed the multiplexer will have a base address of 1 00016 1
13. IOEOL 7L state 2 IOOUTPUTA 70900L send data 2 IOENTER 70900L amp read printf nDevice Register X int read send data 0 BASE ADDR 4 IOEOI 7L 0 IOEOL 71 0 IOOUTPUTS 70900L DIAG PEEK 11 IOEOI 7L 1 IOEOL 7L state 2 IOOUTPUTA 70900L send data 2 IOENTER 70900L amp read printf nStatus Register X int read return 0 Appendix B Register Based Programming 111 Example Scanning This C program example is similar to the closing opening example except Channels that it scans through the entire 64 channels on the multiplexer By placing your own multimeter programming code where indicated you can create a scanning multimeter include lt stdio h gt include lt chpib h gt include lt cfunc h gt define LOG_ADDR 112L define BASE_ADDR long 0 1 000 64 LOG_ADDR main 5 int reg addr 36 long number float send data 3 read char state 2 13 10 send_data 0 BASE_ADDR reg_addr send data 1 16 send data 2 pow 2 5 IOEOI 7L 0 IOEOL 7L 0 IOOUTPUTS 70900L 10 IOEOI 7L 1 IOEOL 7L state 0 IOOUTPUTA 70900L send data 3 send data 0 BASE ADDR 4 IOEOI 7L 0 IOEOL 7L 0 IOOUTPUTS 70900L DIAG PEEK 11 IOEOI 7L 1 IOEOL 7L state 2 IOOUTPUTA 70900L send data 2 while bit number 0 5 IOENTER 70900L amp read bit number long read
14. JM10 JM11 Used to connect the COM lines of banks 0 and 1 JM12 JM13 Used to connect the COM lines of banks 2 and 3 JM14 JM15 Used to connect the COM lines of banks 4 and 5 JM16 JM17 Used to connect the COM lines of banks 6 and 7 nc Jumper Location H gm 1 ZH uo MET 33 KI 18 1 KI r MADOR N 4 KY s tf e B y tt d 22 1 htt 353 du KA 21 2004 1745 Ur B ret Jews oF 11 f nx A S WY a CEN Y Figure 1 5 Switch Card Wire Jumper Settings Reconfiguring the Relay reconfigure the relay switch card Switch 1 the switch card on a flat surface Using a TORX T 10 driver remove the six screws on the shield and carefully lift the shield to expose the printed circuit board 2 Configure the wire jumpers as required using Table 1 2 If you install new jumpers use zero ohm resistors or No 22 AWG copper wire For example to configure banks 0 1 2 and 3 as 1x8 multiplexers and banks 4 5 6 and 7 as 1x16 multiplexers jumper positions are Jumpers lt JM14 15 16 17 and Jumpers lt JM2 3 4 5 10 11 12 13 3 R
15. ROUT CLOSe channel list or CLOSe channel list Variable Commands Some commands have what appears to be a variable syntax such as Syntax OUTPut ECLTrgn and OUTPut TTLTrgn In these commands the n is replaced by a number No space is left between the command and the number because the number is not a parameter The number is part of the command syntax In the case of OUTP ECLTrgn n can range from 0 to 1 In OUTP TTLTrgn n can range from 0 through 7 60 Relay Multiplexer Command Reference Chapter 3 Parameter Types following table contains explanations and examples of parameter types you may see in this chapter Type Explanations and Examples Boolean Boolean parameters represent a single binary condition that is either true or false ON OFF 1 0 Any non zero value is considered true Discrete Discrete parameters selects from a finite number of values These parameters use mnemonics to represent each valid setting An example is TRIGger SOURce lt gt where source can be BUS HOLD IMMediate ECLTrgn TTLTrgn Numeric Numeric parameters are commonly used decimal representations of numbers including optional signs decimal points and scientific notation for example 123 123E2 123 1 23E2 123 1 23E 2 1 23000E 01 Special cases include MIN MAX DEFault and INFinity Optional Optional parameters are shown within square brackets
16. 10 DIM A 40 Rdgs 1 66 20 ASSIGN Dvm TO 70903 30 OUTPUT Dvm RST CLS 40 WAIT 2 50 OUTPUT QDvm IDN 60 ENTER Dvm A 70 PRINT A 80 OUTPUT Dvm ROUT FUNC 1 90 ENTER Dvm A 100 PRINT If E1460A terminal module jumper 10 is cut and jumpers 11 110 PRINT 12 and 13 in place ROUT FUNC will return WIRE1 120 PRINT A 130 OUTPUT Dvm MEAS RES 10000 10101 140 ENTER Dvm Rdgs 150 PRINT Rdgs 160 END 50 Using the Relay Multiplexer Chapter 2 Miscellaneous Multiplexer Functions Using the Scan Complete Bit Example Using the Scan Chapter 2 This section describes some miscellaneous multiplexer functions including Using the Scan Complete Bit Using the Analog Bus Saving and Recalling States Detecting Error Conditions Synchronizing the Multiplexer The scan complete bit bit 8 can be used in the Operation Status Register of a switchbox to determine when a scanning cycle completes no other bits in the register apply to the switchbox Bit 8 has a decimal value of 256 and you can read it directly with the STAT OPER command When enabled by the STAT OPER ENAB 256 command the scan complete bit will be reported as bit 7 of the Status Byte Register Use the GPIB Serial Poll or the IEEE 488 2 Common Command STB to read the Status Byte Register When bit 7 of the Status Byte Register is enabled by the 5 128 common command to assert a GPIB Service Request you can i
17. Querying the Scan Port 83 Querying the Scanning Mode 82 Querying Trigger Slope 92 Querying TTL Trigger Bus Enable State 71 Querying the Trigger Source 94 Reading ID Device Type and Status Regs 111 Reading the Description of a Module 88 Reading the Operation Status Register 87 Scanning Channels 112 Scanning Channels HP UX 113 Scanning Channels Using 3457A Multimeter 47 Scanning Channels Using E1406A Cmd Mod 44 Scanning Channels Using E1412A Multimeter 46 Scanning Multimeter DCV Measurements 49 Scanning Multimeter Resistance Meas 50 Scanning Using Bus Triggers 94 Scanning Using External Devices 80 Scanning Using External Triggers 93 Selecting the Analog Bus Port 83 Setting Module to Power on State 89 Setting Ten Scanning Cycles 63 Stopping a Scan with ABORt 62 Switching Channels Four Wire 41 Switching Channels One Wire 38 Switching Channels Three Wire 40 Switching Channels Two Wire 39 Synchronizing Instruments 58 Using a Multimeter with a Multiplexer 110 Using the Scan Complete Bit 51 F four wire mode operation 14 ID register 104 IEEE 488 2 common commands reference 95 initial operation 34 INITiate subsystem 65 INITiate CONTinous 65 INITiate CONTinuous 66 INITiate IMMediate 66 installing multiplexer in a mainframe 21 interrupt priority setting 17 L linking commands 61 logical address switch setting 16 118 Index multiplexer addressing 30 analog bus using
18. RST 95 SAV 95 B5 SRE 2 95 STB 95 TRG 95 95 WAI 95 command reference 95 format 59 Index E1460A Relay Multiplexer User s Manual C continued configuring terminal modules 23 configuring the multiplexer 15 configuring wire jumpers 18 connecting the analog bus 22 connecting user inputs 25 control relays 13 D declaration of conformity 9 detecting error conditions 56 Device Type register 104 documentation history 8 downloading SCPI drivers 30 E error conditions detecting 56 error messages 115 examples Advancing Scan Using TRIGger 91 Cable Testing 53 Closing Multiplexer Channels 74 Configuring Multiplexer Mode 76 Connecting the Analog Bus 52 Enabling Trig Out Port 70 Enabling a Single Scan 67 Enabling Continuous Scanning 66 Enabling ECL Trigger Bus Line 0 69 Enabling the Status Register 86 Enabling TTL Trigger Bus Line 7 71 Error Checking Using Interrupts 57 Error Checking Using Polling 56 Four Wire Ohms Measurements 81 Initial Operation 34 Multiplexer Module Channel Lists 33 Opening Multiplexer Channels 78 Opening Closing Multiplexer Channels 108 Querying Trig Out Port Enable State 70 Querying Channel Closure 74 Querying Channel Open State 79 Querying Continuous Scanning State 66 Querying ECL Trigger Bus Enable State 69 Querying Number of Scans 64 Index 117 continued examples continued Querying Operating Mode 76
19. channels are connected together This means wiring for all channels must be insulated as though each channel carries the voltage of the highest voltage channel MAXIMUM INPUTS The maximum voltage that can be applied to any terminal is 220 Vdc 250 Vrms The maximum current that can be applied to any terminal is 1A at 30 Vdc Vrms or 0 3 A at 250 Vdc Vrms The maximum power that can be applied to any terminal is 40 VA STATIC ELECTRICITY Static electricity is a major cause of component failure To prevent damage to the electrical components in the multiplexer observe anti static techniques whenever removing a module from the mainframe or whenever working on a module Getting Started 15 Setting the Logical Address Switch NOTE Plug in modules installed in an mainframe or used with a command module are treated as independent instruments each having a unique secondary GPIB address Each instrument is also assigned a dedicated error queue input and output buffers status registers and if applicable dedicated mainframe command module memory space for readings or data An instrument may be composed of a single plug in module such as a counter or multiple plug in modules for a switchbox or scanning multimeter instrument The instrument logical address LADDR is set with the logical address Switch located on the instrument The logical address switch LADDR factory setting for the E1460A is 112 Valid address values are
20. the banks can be changed from 1x32 to groups of 1x16 or 1x8 See Configuring the Switch Card Wire Jumpers for more information For a SCPI environment one or more multiplexer modules can be defined as a switchbox or as a scanning multimeter For a switchbox configuration all multiplexer channels within the instrument can be addressed using a single interface address For a scanning multimeter configuration both the multimeter and all multiplexer modules within the instrument can be addressed using a single interface address Chapter 1 Getting Started 11 Channel Relay The channel relay switches are separated into eight banks Each bank has eight switchable channels and a COM channel Each channel has a Switches 12 Getting Started separate HI H and LO L line See Figure 1 1 for a block diagram Ne TERMINAL CARD m OPEN B vc L 1 5 J 1 CLOSED CH 0990 LcHo J BANK 0 1 P 1 1 enr 1 1 1 LCHO 1 BANK 1 1 1 1 TPH com o 2 i CLOSED 1 0991 BANK 2 I 1 1 1 1 QJ l BANK 1 O 0992 gt CABLET
21. 5 1W LO REF I dh Ls H1 1W COM l 1 1 1 0994 0995 gt 2 lt ANALOG BUS 0 1 1 1 1 1 1 1 BANK 4 1 1 1 1 1 1 1 1 BANK 5 o o 1 0996 1 1 eT o 0993 1 1 i BANK 6 1 1 1 1 BANK 7 1 1 1 1 Figure 1 1 1460 Multiplexer Block Diagram Chapter 1 Banks are arranged as follows Bank 0 includes channels 00 through 07 and COM Bank 1 includes channels 10 through 17 and COM Bank 2 includes channels 20 through 27 and COM Bank 3 includes channels 30 through 37 and COM Bank 4 includes channels 40 through 47 and COM Bank 5 includes channels 50 through 57 and COM Bank 6 includes channels 60 through 67 and COM Bank 7 includes channels 70 through 77 and COM Each channel is switched connected to its common by closing the appropriate latching relays Channels 0 through 7 can be switched to COM for all banks Any number of channels in each bank can be connected to common at a time except for one wire mode User inputs outputs to each channel are via wire terminals When a channel is closed it is internally connected to the COM terminal When a channel is opened it is internally disconnected Open channels are not terminated At power on or reset all channels are switched open non terminated for all banks only when using the SCPI or C SCPI driver At power off all relays remain in their present state Control Rela
22. 52 attaching terminal modules 28 block diagram 12 card numbers 31 channel addresses 32 channel relay switches 12 commands 35 components 11 configuration 15 connecting analog bus 22 connecting user inputs 25 control relays 13 description 11 detecting error conditions 56 error messages 115 four wire mode 14 initial operation 34 installing in mainframe 21 one wire mode operation 14 programming 29 query commands 36 register addressing 99 register offset 101 register based programming 99 reset conditions 36 saving and recalling states 56 scan complete bit 51 scanning channels 43 switching channels 37 synchronizing 58 three wire mode 14 two wire mode operation 14 wiring terminal modules 26 O one wire mode operation 14 Option description 23 OUTPut subsystem 68 OUTPut ECLTrgn STATe 68 OUTPut ECLTrgn STATe 69 OUTPut EXTernal STATe 69 OUTPut EXTernal STATe 70 OUTPut TTLTrgn STATe 70 OUTPut TTLTrgn STATe 71 programming the multiplexer 29 R READ registers description 102 reconfiguring relay switch 19 register addressing 99 register offset 101 register based programming 99 107 registers Device Type 104 ID 104 Relay Control 104 Status Control 103 Relay Control registers 104 relay multiplexer specifications 97 relay switch reconfiguring 19 reset conditions 36 restricted rights statement 7 ROUTe subsystem 72 ROUTe CLOSe 7
23. Complete Bi caters rc 51 Usma ho nnal BUS snis 52 Saving gs c dee Tm 56 Delect Error LOBIIDHS dri Ded endo dn ed ERE LR a e RE 56 Synchronizing the E EM 58 Chapter 3 Relay Multiplexer Command Reference 59 About This Chapel QN EVER UN den LL 59 M 59 SCOPI Commands actes euet t uds ueri bin Peste cid 61 Pli sai ba ai EUN 62 Pil 63 QUIE unire bb yotadi Rises cu ber E ERIS SER D DUE RE 63 ARM esl s Je 64 T ne 65 TIMOUS TE i cndinatattionseientiongied sn 65 ocio oon rk SRL eL iiia oaaao EXE IDE 66 IN Tete FIM MEL TTL ITEM 66 OUTPUT saisie con e aie emer en eds dui bi ep 68 OUTPUCECL TONE STATE eO 68 OUTPUtCECLCIONCS TATE o buz EX FERE iaaio 69 OLITPutfEXTermallES TAI xcci avena a eua 69 Temal ESTATE
24. Control Register channels 0990 0996 Any number of relays per bank can be closed at a time Any bit pattern not indicated in the register maps result in the lowest numbered channel being closed For example to connect both upper and lower banks to the analog bus write a 1 to bits 2 and 3 of the base 3046 to close bank 0990 relays 2 and 3 All other bits must be set to O To reset the multiplexer all relays open you must write a 0 to each bit in the Relay Control Registers Reading the Relay Control Registers always returns 46 Register maps for Bank 0 through Bank 7 Relay Control Registers and for the Channels 0990 0996 Relay Control Register follow r Bank 0 Relay Control Register base 2046 12 11 10 9 8 7 6 5 4 3 2 1 0 Write Undefined CH6 CH5 4 CH2 CH1 CHO Read Always Returns FFFF16 Write a 1 to close channel to COM Bank 1 Relay Control Register base 2246 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Write Undefined CH6 5 CH4 2 1 CHO Read Always Returns FFFF4g Write a 1 to close channel to COM 104 Register Based Programming Appendix B Bank 2 Relay Control Register
25. MIN sets 1 cycle and MAX sets 32 767 cycles Name Type Range of Values Default number numeric 1 thru 32 767 MIN MAX 1 Number of Scans Use only numeric values between 1 and 32767 MIN or MAX for the number of scanning cycles Related Commands ABORt INITiate IMMediate RST Condition ARM COUNt 1 Setting Ten Scanning Cycles This example sets a multiplexer module for 10 scans of channels 0 through 7 in bank 1 in a single module switchbox ARM COUN 10 110 scans per INIT command SCAN 110 117 Scan channels 0 to 7 in bank 1 INIT Start scan close channel 0 Relay Multiplexer Command Reference 63 ARM COUNt ARM COUNt MIN MAX returns the current number of scanning cycles set by ARM COUNt The current number of scan cycles is returned when MIN or MAX is not specified With MIN or MAX as a parameter MIN returns 1 and MAX returns 32 767 Parameters Name Type Range of Values Default MIN MAX numeric MIN 1 MAX 32 767 current cycles Comments Related Commands INITiate IMMediate Example Query Number of Scans This example sets a multiplexer module for 10 scanning cycles and queries the number of scan cycles set The ARM COUN command returns 10 ARM COUN 10 Set 10 scans per INIT command ARM COUN Query number of scans 64 Relay Multiplexer Command Reference Chapter 3 INITiate command subsystem selects continuous scann
26. N A mode boolean 1 OFF 10 Enabling ECL Trigger Bus When enabled a pulse is output from the selected ECL Trigger bus line 0 or 1 after each channel is closed during a scan If disabled a pulse is not output The output is a negative going pulse ECL Trigger Bus Line Shared by Switchboxes Only one switchbox configuration can use the selected trigger at a time When enabled the selected ECL Trigger bus line 0 or 1 is pulsed by the switchbox each time a scanned channel is closed To disable the output for a specific switchbox send the OUTPut ECLTrgn OFF or 0 command for that switchbox 68 Relay Multiplexer Command Reference Chapter 3 One Output Selected at a Time Only one output 0 or 1 1 2 3 4 5 6 or 7 or EXTernal can be enabled at one time Enabling a different output source will automatically disable the active output For example if TTLTrg1 is the active output and TTLTrg4 is enabled TTLTrg1 will become disabled and TTLTrg4 will become the active output Related Commands ROUTe SCAN TRIGger SOURCe OUTPut ECLTrgn STATe RST Condition OUTPut ECLTrgn STATe OFF disabled Enabling ECL Trigger Bus Line 0 OUTP ECLTO STAT 1 Enable ECL Trigger bus line 0 to output pulse after each scanned channel is closed OUTPut ECLTrgn STATe Example OUTPut ECLTrgn STATe queries the present state of the specified ECL Trig
27. Selected Multiplexer Commands Used in Chapter 2 Command Description INITiate IMMediate Starts the scan sequence and closes the first channel in the channel list OUTPut TTLTrg T STATe ON Enables selected output to trigger pulses from the TTL Trigger bus ine specified OUTPut EXTernal STATe ON Enables selected output to trigger pulses from command module s Trig Out port ROUTe CLOSe lt channel_list gt Closes the channels in the channel list ROUTe CLOSe channel list Queries the state of the closed channels in the channel list ROUTe FUNCtion card gt lt function Sets the operating mode to one wire two wire three wire or four wire ROUTe OPEN lt channel_list gt Opens the channels in the channel list ROUTe SCAN channel ist Defines the channels to be scanned Channels specified in the channel list are closed one at a time ROUTe SCAN PORT Closes bank COM terminals to the analog bus during a scan ROUTe SCAN MODE Sets the scan mode to volts 2 wire ohms or 4 wire ohms TRIGger SOURce source Selects the trigger source to advance the scan CLS Clears all switchbox status registers and error queue ESE Enables event status register RST Resets the hardware and software to a known state SRE Enables status register Chapter 2 Using the Relay Multiplexer 35 Table 2 2 su
28. THE EXTENT LAWFULLY PERMITTED DO NOT EXCLUDE RESTRICT OR MODIFY AND ARE IN ADDITION TO THE MANDATORY STATUTORY RIGHTS APPLICABLE TO THE SALE OF THIS PRODUCT TO YOU U S Government Restricted Rights The Software and Documentation have been developed entirely at private expense They are delivered and licensed as commercial computer software as defined in DFARS 252 227 7013 Oct 1988 DFARS 252 211 7015 May 1991 or DFARS 252 227 7014 Jun 1995 as a commercial item as defined in FAR 2 101 a or as Restricted computer software as defined in FAR 52 227 19 Jun 1987 any equivalent agency regulation or contract clause whichever is applicable You have only those rights provided for such Software and Documentation by the applicable FAR or DFARS clause or the Agilent standard software agreement for the product involved Agilent Technologies E1460A 64 Channel Relay Multiplexer Module User s Manual Edition 6 Copyright O 1990 1992 1995 2001 Agilent Technologies Inc All rights reserved Documentation History 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 replacement pages to correct or add additional information to the current Edition of the manual Whenever a new Edition is created it will contain all of the Update inform
29. The brackets are not part of the command and are not sent to the instrument If you do not specify a value for an optional parameter the instrument chooses a default value For example consider ARM COUNt MIN MAX If you send the command without specifying a parameter the present ARM COUNt value is returned If you send the MIN parameter the command returns the minimum count available If you send the MAX parameter the command returns the maximum count available Place a space between the command and the parameter Linking Commands Linking IEEE 488 2 Common Commands with SCPI Commands Use a semicolon between the commands For example RST RCL 1 or CLOS 101 SAV 1 Linking Multiple SCPI commands Use both a semicolon and a colon between the commands such as CLOS 101 CLOS 6101 SCPI also allows several commands within the same subsystem to be linked with a semicolon and colon such as ROUT CLOS 101 ROUT CLOS 0101 SCPI Commands Reference This section describes the Standard Commands for Programmable Instruments SCPI for the Relay Multiplexer module Commands are listed alphabetically by subsystem and within each subsystem Chapter 3 Relay Multiplexer Command Reference 61 ABORt Subsystem Syntax Comments Example The ABORt command stops a scan in progress when the scan is enabled via the interface and the trigger source is TRIGger SOURce BUS TRIGger SOURce HOLD ABO
30. Voltage Terminal to Terminal 220 250 Maximum Current per Channel non inductive 1 Adc or acq Vmax 30 or 250 Vims 0 3 Adc or Vmax 133 or 150 Vims Maximum Voltage Terminal to Chassis 220 250 Maximum Power per Channel 40VA Bias Current 0 5 nA Volt at 25 C 25 RH From or LO to chassis per group of 16 channels DC Performance gt 5 106 at 40 C 95 RH 25x10 at 25 C 40 RH Insulation Resistance between any two points Closed Channel Resistance 1 5 O initially 3 5 at end of relay life Maximum Thermal Offset per Channel lt 7UV differential H L AC Performance Minimum Bandwidth 3dB 50 W source load 2 Wire mode 4x16 gt 10 MHz 1 Wire mode 1x128 gt 3 MHz Crosstalk Between Channels 010 kHz 2 Wire mode 4x16 90 dB 1 Wire mode 1 128 60 dB Open Channel Capacitance channel to channel channel to common 2 Wire mode 4x16 30 pF 1 Wire mode 1x128 380 pF Closed Channel Capacitance Hi Lo Lo Chassis 2 Wire mode 4x16 650 700 pF General Module Size Device Type Power Requirements No Load 5x108 Operations amp Full rated Load 10 Operations C size VXlbus Register based Voltage 5V T24V Peak Module Current A 0 10 0 13 Dynamic Module Current A 0 10 0 02 Relay Life Watts slot 5 0 Cooling slot 0 08 mm H50
31. any combination of the above Channel numbers can be in the channel list in any random order Scanning Operation When a valid channel list is defined INITiate IMMediate begins the scan and closes the first channel in the channel list Successive triggers from the source specified by TRIGger SOURce advance the scan through the channel list Stopping Scan See the ABORt command Related Commands OUTPut TRIGger RST Condition All channels open Scanning Using External Devices See Scanning Channels in Chapter 2 for examples of scanning programs using external instruments ROUTe SCAN MODE mode sets the multiplexer channels defined by the ROUTe SCAN channel list command for none volts two wire ohms or four wire ohms measurements Name Type Range of Values Default mode discrete NONE I VOLT RES I FRES NONE 80 Relay Multiplexer Command Reference Chapter 3 Comments of Command Execution The ROUTe SCAN MODE and ROUTe FUNCtion commands must be executed before the ROUTe SCAN channel list command ROUTe SCAN MODE versus ROUTe FUNCtion FRES Measurement mode is not supported when FUNCtion is set to WIRE1 one wire mode NONE and VOLT Mode When selected channel list is setup for volts measurements VOLT mode is also used when making two wire ohms measurements using two wire multimeters RES Mode When selected channel list is setup for two wire ohms mea
32. are closed and the LO terminal of bank 4 channel 0 is closed connecting them to their COM terminals Control relays 0990 and 0991 are automatically set open when configured for three wire mode To connect bank 0 both terminals and bank 4 LO terminal to Guard to the analog bus control relays 0992 and 0996 must be closed To connect bank 0 and bank 4 to the analog bus execute CLOS 10992 10996 Close control relay 0992 to connect bank 0 3 to the analog bus Close control relay 0996 to connect bank 4 7 LO terminal to the analog bus Guard terminal Chapter 2 SWITCH CARD CH0990 CH0991 CH0992 TERMINAL MODULE OPEN 0 cose S NC HL VN ANALOG BUS GUARD Ao E uu des Example Cable Testing Chapter 2 Figure 2 9 Example Connecting the Analog Bus You can connect and test multi conductor cables or wiring harness conductors for continuity and insulators for short circuit using a single multiplexer module and system multimeter module Use the OPEN CLOS channel list commands to switch the control relays For example to close control relay 0992 connect banks 0 3 to analog bus execute CLOS 8010992 The E1411B multimeter can directly measure channels of single or multiple multiplexer modules in a scanning multimeter configuration The multimeter when correctly programmed automatica
33. channel list command and an INITiate IMMediate command All must be executed unless defaults are used before TRIGger IMMediate will execute BUS or HOLD Source If selected the TRIGger SOURce BUS or TRIGger SOURce HOLD commands remain in effect after triggering a switchbox with the TRIGger IMMediate command Related Commands INITiate ROUTe SCAN Example Advancing Scan Using TRIGger Command This example uses the TRIGger command to advance the scan of a single module switchbox from bank 0 channels 0 through 7 Since TRIGger SOURce HOLD is set the scan is advanced one channel each time TRIGger is executed For the example ROUTe SCAN MODE and ROUTe SCAN PORT default values of NONE are used TRIG SOUR HOLD Set trigger source to HOLD SCAN 100 107 Scan channels 0 to 7 in bank 0 INIT Begin scan close channel 00 loop statement Start count loop TRIG Advance scan to next channel increment loop Increment loop count Chapter 3 Relay Multiplexer Command Reference 91 TRIGger SLOPe Parameters Comments TRIGger SLOPe Example TRIGger SOURce Parameters Comments 92 Relay Multiplexer Command Reference TRIGger SLOPe slope is used to select the polarity of the output trigger For the E1460A this command is not used Name Type Range of Values Default slope discrete NEG NEG Command Not Supported Attempting to change the TRIGger SLOPe to anything other than NEG will gen
34. connected to the analog bus Guard terminal Banks are paired 0 4 1 5 2 6 and 3 7 A maximum of 32 three wire channels can be switched Switches both the HI and LO terminals of a channel in banks 0 through 3 to the HI COM and LO COM terminals Also switches the HI and LO terminals of the pair channel in banks 4 through 7 to the HI COM and LO COM terminals Banks are paired 0 4 1 5 2 6 and 3 7 A maximum of 32 four wire channels can be switched Chapter 1 Configuring the Multiplexer Warnings and Cautions WARNING WARNING CAUTION CAUTION Chapter 1 This section gives guidelines to configure the relay switch card See Configuring Terminal Modules for guidelines to configure the terminal modules This section includes Warnings and Cautions Setting the Logical Address Switch Setting the Status Register Switch Setting the Interrupt Priority Configuring the Switch Card Wire Jumpers Installing the Multiplexer in a Mainframe Connecting the Analog Bus SHOCK HAZARD Only service trained personnel who are aware of the hazards involved should install remove or configure the multiplexer Before you remove any installed module disconnect AC power from the mainframe and from other modules that may be connected to the multiplexer CHANNEL WIRING INSULATION channels that have common connection must be insulated so that the user is protected from electrical shock in the event that two or more
35. from 1 to 255 See Figure 1 2 to set the logical address From Figure 1 2 note that the value of the logical address set is the sum of the values of the switches set to the CLOSED position The address switch selected value must be a multiple of 8 if the module is the first module in a switchbox used with a VXIbus command module and being instructed by SCPI commands LL S a 1 CLOSED Logical Address 112 Logical Address Switch Location QN 00 QN MSE MEN 164324647112 CLOSED Switch Set To 1 ON Ia OPEN Switch Set To 0 OFF p 16 Getting Started Figure 1 2 Setting the Logical Address Switch Chapter 1 Setting Status Register Switch Four bits of the Status Register bits 10 13 define whether the multiplexer module is set for one wire two wire three wire or four wire switching To ensure proper operation set the status register switch as shown in Figure ES 0 0 0 1 1 128 channel EE il 0 0 1 0 2 wire 64 channel 747 2 wire Dual 32 channel 0 0 1 1 3 32 channel Hes O 1 0 0 4 wire 32 channel o o Example shows Ne Switch set 0 TL to 4 wire Lu pen 13 10 i
36. if the specified TTLTrg bus line is enabled or 0 if disabled Query TTL Trigger Bus Enable State This example enables TTL Trigger bus line 7 and queries the enable state The OUTPut TTLTrgn command returns 1 since the port is enabled OUTP TTLT7 STAT 1 Enable TTL Trigger bus line 7 OUTP TTLT7 Query bus enable state Relay Multiplexer Command Reference 71 ROUTe The ROUTe command subsystem controls switching and scanning operations for multiplexer modules in a switchbox NOTE This command opens all previously closed relays Therefore it should be the first relay configuration command Subsystem Syntax ROUTe CLOSe channel list CLOSe channel list FUNCtion card number function FUNCtion card number OPEN channel list OPEN channel list SCAN channel list MODE mode ROUTe CLOSe channel list closes the multiplexer channels specified by channel list Channel list has the form ssOhbc where ss card number 01 99 Oh one wire mode only high low switching 00 or 01 b lt bank number 0 7 and c lt channel number 0 7 MODE PORT port PORT ROUTe CLOSe Parameters Name Type Range of Values Default channel list numeric ss 00 00 to ss0177 1 wire 5500 to ss77 2 wire 5500 to ss037 3 wire 5500 to ss037 4 wire Comments One Wire Mode WIRE1 When closing a channel in one wire mode the or LO line must b
37. in the switchbox The program next queries the channel closure state A returned 1 shows that the command to close the channel has been sent to the switchbox A returned 0 shows that the command to close the channel has not been sent to the switchbox BASIC is used as the program language The computer interfaces to the mainframe using GPIB with interface select code 7 primary address 09 and secondary address 14 This example rsesets the switchbox and closes card 01 bank 0 channel 2 to COM OUTPUT 70914 RST Reset the module set all relays to open OUTPUT 70914 CLOS 102 Connect bank 0 channel 2 HI and LO terminals to bank 0 to COM HI and LO terminals OUTPUT 70914 CLOS 102 Query channel 02 ENTER 70914 Value Enter results into Value PRINT Value Display results should return 1 END Chapter 1 Chapter 2 Using the Relay Multiplexer Using This Chapter This chapter shows how to use the Relay Multiplexer module including Multiplexer Commands States 35 Switching Channels 37 Scanning Channels 43 Miscellaneous Multiplexer Functions 51 Multiplexer Commands States This section summarizes Relay Multiplexer module commands queries and reset states Table 2 1 shows multiplexer commands used in this chapter See Chapter 3 for additional information about the commands Table 2 1
38. onto one end of a wire The other end Wire Gauge 24 AWG Quantity 50 each Insulation Rating 1059C max Voltage 300 V Shielded Twisted Pair and Contacts A crimp and insert contact is crimped onto each conductor at one end of a shielded twisted pair cable The other end is not terminated Order 91511A Length 2 meters Wire Gauge 24 AWG Outside Diameter 0 1 inches Quantity 25 each Insulation Rating 250 C max Voltage 600 V Jumper Wire and Contacts A crimp and insert contact is crimped onto each end of a single conductor jumper wire This jumper is typically used to tie two pins together ina single crimp and insert connector Order 91512A Length 10 cm Wire Gauge 24 AWG Quantity 10 each Insulation Rating 105 C max Voltage 300 V Crimp and These contacts may be crimped onto Wire Gauge Range 20 26 AWG Insert a conductor and then inserted into a Quantity 250 each Contacts crimp and insert connector The Plating Gold Plated Contact crimp tool kit is required to crimp the Q Maximum Current 2A at 70 C contacts onto a conductor and remove the contact from the connector Order 91515A Crimp and The hand crimp tool part number 91518A is used for crimping contacts onto a conductor Insert Tools The pin extractor tool part number 91519A is required for removing contacts from the crimp and insert connector These products are not included with Option A3E or with
39. returns which bits in the Event Register Operation Status Group are unmasked 86 Relay Multiplexer Command Reference Chapter 3 STATus OPERation EVENt STATus OPERation EVENt returns which bits in the Event Register Operation Status Group are set The Event Register indicates when there has been a time related instrument event Comments Setting Bit 8 of the Operation Status Register Bit 8 scan complete is set to 1 after a scanning cycle completes Bit 8 returns to 0 zero after sending the STATus OPERation EVENt command Returned Data after Sending STATus OPERation EVENt The command returns 256 if bit 8 of the Operation Status Register is set to 1 The command returns 0 if bit 8 of the Operation Status Register is set to 0 Event Register Cleared Reading the Event Register with the STATus OPERation EVENt command clears it Aborting a scan Aborting a scan will leave bit 8 set to O Related Commands ROUTe SCAN Example Reading the Operation Status Register After a Scanning Cycle STAT OPER Returns the bit values of the Standard Operation Status Register read the register value 1 256 shows bit 8 is set to 1 and 0 shows bit 8 is set to O STATus PRESet STATus PRESet affects only the Enable Register by setting all Enable Register bits to 0 It does not affect either the status byte or the standard event status PRESet does not clear any of the Event Registers Chapter 3 Relay Mult
40. ssbc ssbc ssbc or ssOhbc ssOhbc ssOhbc ssOhbc or any combination of the above Channel numbers can be in the channel list in any random order However closure order for multiple channels with a single command is not guaranteed Closing the Control Relays The control relays 0990 to 0996 can be closed to perform special functions for example connecting channels to the analog bus Channels must be changed after the multiplexer has been configured using the ROUTe FUNCtion command Close 0990 to select the LO terminal for one wire switching 0991 to connect one wire LO REF terminal to the one wire LO COM terminal 0992 to connect lower 32 channels banks 0 to 3 to the analog bus 0993 to connect upper 32 channels banks 4 to 7 to the analog bus 0994 to connect lower and upper analog buses together 0995 to connect lower and upper common buses together 64 channel two wire operation 0996 to connect analog bus Guard to the LO line on the upper 32 channels banks 4 to 7 OPC Command Using the DPC command after the CLOSe command in your programs will ensure that the channel CLOSe command has executed prior to performing the next function measure read etc This programming practice is highly recommended Relay Multiplexer Command Reference 73 Related Commands ROUTe JOPEN CLOSe SCAN RST Condition All multiplexer channels are open Example Closing Multiplexer Channels This examp
41. terminals When closing a channel in four wire mode only the lower bank 0 3 is specified and the upper bank pair 4 7 will automatically close A maximum of 32 four wire channels can be switched Selecting an upper bank 4 7 channel causes an error Related Commands ROUTe OPEN ROUTe CLOSe ROUTe SCAN RST RST does not change the selected mode Example Configuring Multiplexer Mode This example configures card 01 of a single module switchbox to four wire mode FUNC 1 WIRE4 Configures card 1 to four wire mode ROUTe FUNCtion ROUTe FUNCtion lt card_number gt returns the current operating mode of the card s queried See ROUTe FUNCtion for card_number definition The command returns WIRET1 if in the one wire mode WIRE2 if in the two wire mode WIRE3 if in the three wire mode or WIRE4 if in the four wire mode Example Query Operating Mode This example sets card 1 in a single module switchbox to one wire mode and queries the operating state Since the one wire mode is selected WIRE1 is returned FUNC 1 WIRE1 Configure card 1 to one wire mode FUNC 1 Query mode of card 1 76 Relay Multiplexer Command Reference Chapter 3 ROUTe OPEN Chapter 3 Parameters Comments ROUTe OPEN channel list opens the multiplexer channels specified by channel list Channel list has the form ssOhbc where ss card number 00 99 one wire mode only high low switching 00 or 01 b ba
42. the terminal option accessories listed earlier Extra The crimp and insert connector is normally supplied with Option A3E Contact Agilent if Crimp and additional connectors are needed Order 91484B Insert Connectors 24 Getting Started Chapter 1 Connecting User Figure 1 10 shows the front panel of the E1460A and the multiplexer s Inputs connector pin out which mates to the terminal module Actual user inputs are connected to the terminal module See Wiring Terminal Modules for connection information F N Channel or M iere WO OL P TE li Pir K H P H B L m L 2 H E COM H H 4L 0 L a H 6L SE eae Bo 7 H 7L H L L a H g H a L E 2 H 22 61 COM L a L Bi 35 H B1 COM H BI 4L MEME B L H E 6 L cee Hi 7 H 7 L H H i 2 L L E 2 H Bii EM 92 H H2 2 H 22 62 COML a L 2 3 H or GOM E 2 COM H 4 H 2 4 L m E 2 H 2 641 HE B2 7 H B2 7 L E 2 H Pin wg Pin og pore Hi L B3 L B3 H m m Q3 4 B3 L B3 H a n i elis be SOM L L K H Analog Bus 2 H Anal Bus 2 L K Analog Bus Guard Eu B COM H 4 H B3 4 L B46 B4 L a4 H nri L H WS 61 ma L aa H IET H3 7 H MS 7L tj H 4 COM L m
43. the Agilent Technologies Universal Instrument Drivers CD For the latest information on drivers see the Agilent web site http www agilent com find inst drivers Agilent register based modules are supported by Standard Commands for Programmable Instruments SCPI drivers These drivers reside in E1406A Command Module non volatile memory If you add a new register based module to an existing VXI system and plan to program the module using SCPI the firmware in your command module may need to be upgraded to accommodate the new module You can download new drivers into non volatile memory from controllers running Windows BASIC or IBASIC This procedure describes how to decide which E1460A driver to use how to check the currently installed driver and how to determine if you need to download a new driver If you determine that you need to install a new driver see Downloading a New Driver 1 Decide whether to use the VOLTMTR or SWITCH driver Use the VOLTMTR driver if you intend to use the E1460A in combination with the E1326B or E1411B multimeter in a Scanning Voltmeter configuration In this configuration the E1460A scans measurement channels and sends the signals to the multimeter where the measurements take place Use the SWITCH driver for all other applications all non Scanning Voltmeter applications 2 Check the currently installed driver revision numbers by sending the DIAG DRIV LIST command to the command module the command modu
44. the im rnupl Priory Ha e uti 17 Configuring the Switch Card Wire Jumpers nene nnns 18 Installing the Multiplexer a Mainframe 21 Connecting he Analog BUS e 22 Terminal i a diee pred ERES 23 Standard Terminal Module Description 112 23 Terminal Module Option Description 23 Bep a 25 Wining Taminal Ann 26 Attaching Terminal Modules to the Multiplexer 2 222 2 28 Programming dis Multiplexer usscuso scis dort ni rn das na dr da kd tia st 29 Picus Eig de ET 29 Multiplexer m 30 ES LIESS OI 34 Chapter 2 Using the Relay Multiplexer 35 BC ID TE P PES 35 Multiplexer Commands SIlBs u 35 Lol AUIS IS M n 37 Switching Channels COMIN mm oT Switching Channels EXSERDIBS 38 43 Scanning Channels SOMES KREIS S daga a ra dad dati d ba dta 43 Scanning Channels Exar ples uia correr 44 Miscellaneous Multiplexer Functions dan eite Eres Er 21 ihe Scan
45. using the OPEN and CLOSe commands See ROUTe OPEN and ROUTe CLOSe for additional information Relay Switch Card Configuration In all modes of operation the relay switch card wire jumpers can be changed to 1x8 or 1x16 configurations as required See Configuring the Switch Card Wire Jumpers for additional information Switching Channels Four example programs follow that illustrate one wire two wire three wire Examples and four wire modes of operation for switching multiplexer channels The examples are Example Switching Channels One Wire Example Switching Channels Two Wire Example Switching Channels Three Wire Example Switching Channels Four Wire Example Switching This example illustrates one wire mode operation For the example the Channels One Wire terminal is used Bank 2 channel 1 is closed connecting the HI terminal to the one wire HI COM terminal Figure 2 1 shows how the multiplexer is configured For one wire operation the control relays are set as follows 0990 depends on HI or LO terminal selection 0991 0995 are set closed 0992 will close when SCAN PORT ABUS is selected during a scan see Scanning Channels 0993 0994 0996 remain in current state open if not changed after RST To connect the HI terminals of bank 2 channel 1 to the one wire HI COM terminal execute FUNC 1 WIRE1 Configures the multiplexer card 01 for one wire operation CLOS 810121 Connects the termin
46. 0 channels 0 to 2 Enter measurement result Start counting loop 3 channels Display measurement result Increment the count and repeat measurement process for a total of 3 measurements Terminate program Using the Relay Multiplexer 49 Example Scanning This program uses 1406 Command Module to verify the 1460 Multimeter Resistance multiplexer will work in one wire mode for resistance measurements with Measurements the E1411B multimeter when the two are instruments are configured as a scanning multimeter For this example to work in either switchbox or scanning multimeter mode you must externally connect the current source banana jack to the HI input banana jack and the LO current Source COM to the LO input banana jack on the front panel of the E1411B multimeter For this example the following resistors are connected to the one wire COM terminal The remaining channels are open 1 on channel 00 HI 1 5 kO on channel 00 LO 1 2 kO on channel 01 HI 1 8 kO on channel 01 LO A typical result returns HEWLETT PACKARD E1411B 0 A 04 02 in response to the IDN command Also If E1460A terminal module jumper 10 is cut and jumpers 11 12 and 13 are in place ROUT FUNC will return WIRE1 is displayed The four channels with resistors connected return the nominal value of the resistor such as 1003 129 for channel 00 HI or 1489 102 for channel 00 LO All other channels return 9 9E 37 to indicate an open channel
47. 12 64 4g 1 00046 1 00 1FDC0046 or 2 080 768 112 64 2 080 768 1536 2 087 936 REGISTER OFFSET 16 16 16 WORDS 200000 16 S 200000 16 IF0000 16 000000 16 IFCOOO 16 Bank 9 Control Register Bank 7 Control Register A16 Bank 6 Control Register Bank 5 Control Register ADDRESS Npanece Bank 4 Control Register SPACE Bank 3 Control Register D SPACE Bank 2 Control Register Bank 1 Control Register Eem Bank 0 Control Register IFOOOO 46 IFCOOO 16 EN e 2 080 768 200000 16 Base Address IFC00046 Logical Address 64 16 N Status Control Register Device Type Register ID Register E1460A A16 REGISTER MAP or 2 080 768 Logical Address 64 10 Register Address lt Base address Register Offset Figure B 2 Registers Within E1406 A16 Address Space Register Offset Appendix B The register offset is the register s location in the block of 64 address bytes For example the multiplexer s Status Control Register has an offset of 0446 When you write a command to this register the offset is added to the base address to form the register address 0046 0416 4 16 1FDC0046 046 1 4 6 or 56 320 4 56 324 2 087 936 4 2 087 940 Register Based Programming 101 Register Descriptions The WRITE vou can write to t
48. 2 ROUTe CLOSe 74 ROUTe FUNCtion 75 ROUTe FUNCtion 76 ROUTe OPEN 77 ROUTe OPEN 79 ROUTe SCAN 79 ROUTe SCAN MODE 80 ROUTe SCAN MODE 82 ROUTe SCAN PORT 82 ROUTe SCAN PORT 83 5 safety symbols 8 saving and recalling states 56 scan complete bit 51 scanning channels 43 scanning multimeter 11 SCPI commands abbreviated commands 60 command reference 61 command separator 60 format 59 implied commands 60 linking commands 61 parameter types 61 quick reference 96 SCPI commands format 30 variable commands syntax 60 SCPI drivers checking 29 downloading 30 setting interrupt priority 17 setting logical address switch 16 setting status register switch 17 specifications 97 standard terminal module description 23 status register switch setting 17 STATus subsystem 84 STATus OPERation CONDition 86 STATus OPERation ENABle 86 STATus OPERation ENABle 86 STATus OPERation EVENt 87 STATus PRESet 87 Status Control register 103 switchbox 11 switching channels 37 synchronizing the multiplexer 58 SYSTem subsystem 88 SYSTem CDEScription 88 SYSTem CPON 89 SYSTem CTYPe 89 SYSTem ERRor 90 I terminal module Option A3E description 23 terminal modules attaching 28 configuring 23 three wire mode operation 14 TRIGger IMMediate 91 TRIGger SLOPe 92 TRIGger SLOPe 92 TRIGger SOURce 92 TRIGger SOURce 94 two wire mode operation 14 U user inp
49. 2 The second loop pass measures wires 3 to 1 4 to 1 4 to 2 3 to 2 and 3 to 4 BNK 0 CABLE UNDER TEST BNK 0 CH 1H WIRE 1 BNK 0 CH 1L WIRE2 BNK 0 CH 2H WIRE 3 BNK 0 CH 2L WIRE 4 cose BNK 2 COMH 2 COML CH 0991 BNK 2 CH 1H oo BNK 2 CH 1L 0 Oo CH 0992 BNK 2 CH 2H Q JM12 JM13 BNK 2 CH 2L a CABLET I USER WIRING 1W LO REF OO OOOO OO 00009 H1 1W HI COM TO EXTERNAL MULTIMETER naw Lo com Qu CH 0994 Qu 1 SYSTEM MULTIMETER ee 1 CH 0995 1 ANALOG BUS Figure 2 10 Example Cable Testing Chapter 2 Chapter 2 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 370 380 390 400 410 420 430 440 450 460 470 480 OUTPUT 70903 5 OUTPUT 70903 CONF RES OPC ENTER 70903 Opc OUTPUT 70914 RST OUTPUT 70914 CLOS 10992 FOR I 1 02 OUTPUT 70914 CLOS 101 121 OPC ENTER 70914 Opc_ OUTPUT 70903 READ ENTER 70903 OUTPUT 70914 OPEN 101 121 OUTPUT 70914 CLOS 102 122 OPC ENTER 70914 Opc_ OUTPUT 70
50. 2 4 shows how the multiplexer is configured For four wire operation the control relays are set as follows 0990 0991 are set open when SCAN lt channel_list gt is executed 0992 0993 will close when SCAN PORT ABUS is selected during a scan They are opened otherwise see Scanning Channels 0994 0995 0996 are set open when SCAN lt channel_list gt is executed Chapter 2 Using the Relay Multiplexer 41 SWITCH CARD To connect the and LO terminals of bank 0 channel 0 and the and LO terminals of bank 4 channel 0 to their COM terminals execute FUNC 1 WIRE4 Configures the multiplexer card 1 for four wire operation CLOS 100 Connects the HI and LO terminals of bank 4 channel 0 to the bank 4 COM terminals If the Status Register switch is set to four wire operating mode the FUNC 1 WIRE4 command is not required In four wire mode banks are paired 0 4 1 5 2 6 and 3 7 Upper bank pair 4 7 channels cannot be switched or queried while in this mode PINE CE CE TESGUINALMESDUEE S e vb TERMINAL MODULE 42 Using the Relay Multiplexer Figure 2 4 Example Four Wire Mode Channel Switching Chapter 2 Scanning Channels Scanning Channels Comments Chapter 2 Scanning the multiplexer module channels consists of closing bank channel s to the respective bank COM terminal s one channel at a time Single scan multiple scans 2 to 32767 or contin
51. 3 reg word bank4 reg word bank5 reg word bank6 reg word bank7 reg word bank99 reg DEVICE_REGISTERS main INST e1460a int i j id rly DEVICE_REGISTERS dev_ptr char devstr 8 ionerror I_ERROR_EXIT Appendix B Register Based Programming 113 Open a device session for 1460 at laddr 112 1460 1460 in A16 registers dev ptrz DEVICE REGISTERS imap ei460a I VXIDEV 0 1 0 Check card ID id dev_ptr gt gt devtype_reg if id 0x0100 printf Card identified as E1460A n else printf Card not an 1460 ID code hu n id Open all relays while dev_ptr gt gt statcntl_reg amp BUSY 0 dev_ptr gt gt bank0O_reg 0x000 while dev_ptr gt gt statcntl_reg amp BUSY 0 dev_ptr gt gt bank1_reg 0x000 while dev_ptr gt gt statcntl_reg amp BUSY 0 dev_ptr gt gt bank2_reg 0x000 while dev_ptr gt gt statcntl_reg amp BUSY 0 dev_ptr gt gt bank3_reg 0x000 while dev_ptr gt gt statcntl_reg amp BUSY 0 dev_ptr gt gt bank4_reg 0x000 while dev_ptr gt gt statcntl_reg amp BUSY 0 dev_ptr gt gt bank5_reg 0x000 while dev_ptr gt gt statcntl_reg amp BUSY 0 dev_ptr gt gt bank6_reg 0x000 while dev_ptr gt gt statcntl_reg amp BUSY 0 dev_ptr gt gt bank7_reg 0x000 while dev_ptr gt gt statcntl_reg amp BUSY 0 dev_ptr gt gt bank99_reg 0x000 while de
52. 3 years 1 Agilent Technologies warrants Agilent hardware accessories and supplies against defects in materials and workmanship for the period specified above If Agilent receives notice of such defects during the warranty period Agilent will at its option either repair or replace products which prove to be defective Replacement products may be either new or like new 2 Agilent warrants that Agilent software will not fail to execute its programming instructions for the period specified above due to defects in material and workmanship when properly installed and used If Agilent receives notice of such defects during the warranty period Agilent will replace software media which does not execute its programming instructions due to such defects 3 Agilent does not warrant that the operation of Agilent products will be interrupted or error free If Agilent is unable within a reasonable time to repair or replace any product to a condition as warranted customer will be entitled to a refund ofthe purchase price upon prompt return of the product 4 Agilent products may contain remanufactured parts equivalent to new in performance or may have been subject to incidental use 5 The warranty period begins on the date of delivery or on the date of installation if installed by Agilent If customer schedules or delays Agilent installation more than 30 days after delivery warranty begins on the 31st day from delivery 6 Warranty does not apply to def
53. 4 L E 4 H 22 B a z COM H 4 H 4L 2 KI Cable T B4 L H wa L 22 E 1 Wire COM EB i Wire 1 Lo E47 H B4 7L E 4 H B a B tJ a ats d D Bu Fi Analog Bu li Analog Bu L B5 L H 21 H BS L a H ia K5 COM L K5 L K5 H 22 5 COM H m5 4 H H5 4L Lee L H B5 L 22 B5 7 H B5 7 L as H os uis H6 L E 6 L a6 H e B6 m6 L H E 6 COM L m e L 3 H ar E 6 COM H BE 4 H 6 4 L 5 L H6 H 6L 6 7 H H6 7L a H a E7 L 87 L a7 H K7 H a7 L 7 H 7 COM L 97 L 97 H E 7 COM H B7 4 H 7 4 a7 L a7 H a7 L Pin ag 7 7 H Pin a7 7 H Figure 1 10 E1460A Multiplexer Pin Out Chapter 1 Getting Started 25 Wiring Terminal Modules 1 Remove Clear Cover Figures 1 11 and 1 12 show suggested steps to connect field wiring user inputs to a terminal module 2 Remove Retain Wiring Panel A Release Screws Remove 1 of the 3 B Press Tab Forward wire exit panels and Release 33 Make Connections Screw Type Use wire Size 22 26 AWG Use wire Size 16 26 Crimp and Insert AWG VW1 Flammability Rating Insert wire into terminal Tighten screw 4 Install Connectors Crimp and Insert Route Wiring Tighten wraps to secure wires Figure 1 11 Steps to Wir
54. 6A TTL Trigger Bus line 1 is used by the multimeter to advance the multiplexer scan Figure 2 6 shows how to connect the E1460A multiplexer module to the E1411B multimeter This example uses GPIB select code 7 primary address 09 and secondary address 03 for the multimeter and GPIB select code 7 primary address 09 and secondary address 14 for the multiplexer Chapter 2 1406 1411 Multimeter Module Ext Trigger VM Complete Bank 0 H Com Bank 0 L Com E1460A Multiplexer Module Fa l E1460A Terminal Module Figure 2 6 Example Scanning Channels Using E1406A Command Module 40 50 60 70 80 90 DIM Readings 1 64 OUTPUT 70903 RST OUTPUT 70903 CONF RES AUTO MAX OUTPUT 70903 TRIG SOUR TTLTO OUTPUT 70903 OUTP TTLT1 STAT 1 OUTPUT 70903 TRIG COUN 64 OUTPUT 70903 OPC ENTER 70903 Opc OUTPUT 70914 RST 100 OUTPUT 70914 FUNC 1 WIRE2X64 110 OUTPUT 70914 OUTP TTLTO STAT 1 Chapter 2 Dimensions computer to store readings Resets multimeter module to known state Configures the multimeter to measure resistance using autorange at the least accurate reso
55. 7 Example flowchart in Figure B 3 shows way to close or open a multiplexer Opening Closing channel and determine when it has finished closing or opening The Multiplexer Channels address of the multiplexer s Status Register is base 044g The address of the channel is the base address plus the channel offset The multiplexer s Status Register bit 7 is monitored to determine when a multiplexer channel can be closed or opened and when a channel has finished closing or opening This C program example closes and then opend Channel 5 on bank 2 register address 36 To initialize the 1460 write zeros to all Relay Control bits 108 Register Based Programming lt Check Multiplexer Status Register Bit 7 Busy Close Multiplexer Channel lt Check Multiplexer Status Register 1 Bit 7 2 X Busy lt Figure B 3 Closing Opening a Multiplexer Channel Appendix B include lt stdio h gt include lt chpib h gt include lt cfunc h gt define LOG_ADDR 112L define BASE ADDR long 0 1 000 64 LOG_ADDR main int reg_addr 36 long bit_number 5 float send_data 3 read char state 2 13 10 send data 1 16 send data 2 1 send data 0 BASE ADDR reg addr IOEOI 7L 0 IOEOL 7L 0 IOOUTPUTS 70900L DIAG POKE 10 IOEOI 7L 1 IOEOL 7L state 0 IOOUTPUTA 70900L send data 3 send data 0 BASE ADDR 4 IOEO
56. 903 READ ENTER 70903 OUTPUT 70914 OPEN 102 122 OUTPUT 70914 CLOS 10990 10991 NEXT I OUTPUT 70914 OPEN 10990 10991 OUTPUT 70914 CLOS 122 1 2 1 100 OUTPUT 70914 J OUTPUT 70903 ENTER 70903 1 OUTPUT 70914 CLOS 10990 OUTPUT 70903 READ ENTER 70903 0 1 OUTPUT 70914 CLOS 10991 OUTPUT 70903 READ ENTER 70903 E 1 OUTPUT 70914 OPEN 10990 OUTPUT 70903 READ ENTER 70903 1 OUTPUT 70914 121 122 120 OUTPUT 70914 CLOS K OUTPUT 70903 READ ENTER 70903 G I OUTPUT 70914 OPEN 910990 10991 OUTPUT 70914 OPEN J NEXT I PRINT Continuity Wire 1 2 3 4 A 1 A 2 B 1 B 2 PRINT Insulation Wire 1 to 2 3 4 G 1 C 1 F 1 PRINT Insulation Wire 2 to 1 3 42 G 1 D 1 E 1 PRINT Insulation Wire 3 to 1 2 42 C 2 F 2 G 2 PRINT Insulation Wire 4 to 1 2 3 D 2 E 2 G 2 END Using the Relay Multiplexer 55 Saving and The SAV numeric state command saves the current instrument state Recalling States The state number 0 9 is specified in the numeric state parameter The following settings are saved Channel Relay States bank 0 7 relays open or closed Control Relay States bank 9 relays open or closed ARM COUNt TRIGger SOURce OUTPut STATe INITiate CONTinuous ROUTe SCAN MODE ROUTe SCAN PORT The RCL numeric state command recalls a previous
57. Agilent Technologies E1460A 64 Channel Relay Multiplexer Module User s Manual NES Agilent Technologies Manual Part Number E1460 90006 Printed September 2012 Printed in Malaysia E0912 NOTICE In August 2014 Agilent Technologies former Test and Measurement business became Keysight Technologies This document 15 provided as a courtesy but is no longer kept current and thus will contain historical references to Agilent For more information goto www keysight com KEYSIGHT TECHNOLOGIES Contents E1460A Relay Multiplexer User s Manual gift e EE 7 Agilent Technologies Warranty Statement 7 cero c H 8 ee sce t o o 8 Chapter Ic 11 WHS 11 Muliniexer OE REF E 11 Niullplexer COMMONS 11 channel ET 12 coco 13 MOSS 14 Configuring ihe Linda Sn 15 and Caon Ree 15 Setting the Logical Address SEH Hat Hg ass 16 Setting the Status Register SWE ccd 17
58. COM terminal Channel numbers are 0 to 7 Only valid channels can be accessed in a channel list When switching the control relays the channel number 0 to 6 identifies which control relay will be switched see Figure 1 1 One wire operating mode CLOSe 10173 Connect card 01 bank 7 channel 3 HI terminal to the one wire HI COM terminal Two wire operating mode CLOSe 173 176 Connect card 01 bank 7 channels 3 and 6 Hl and LO terminals to bank 7 Hl and LO COM terminals Three wire operating mode CLOSe 133 136 Connect card 01 bank 3 channels 3 through 6 HI and LO terminals to bank 3 HI and LO COM terminals Also connect bank 7 channels 3 through 6 LO terminal to bank 7 LO COM terminal Four wire operating mode CLOSe 133 136 233 236 Connect cards 01 and 02 bank 3 channels 3 through 6 HI and LO terminals to bank 3 HI and LO COM terminals Also connect bank 7 channels 3 through 6 HI and LO terminals to bank 7 HI and LO COM terminals Control relays CLOSe 10995 Connect the upper and lower 32 channels together for a 64 channel two wire Getting Started 33 Initial Operation 34 Getting Started 10 20 30 40 50 60 multiplexer You can use the following example program to verify initial multiplexer module operation by closing a channel and querying channel closure The example first resets the switchbox and then closes bank 0 channel 2 of a single multiplexer module card number 1
59. GDvm OPC 130 ENTER Dvm Cp 140 OUTPUT Dvm SYST ERR 150 ENTER Dvm A 160 PRINT A 170 OUTPUT Mux FUNC 1 WIRE1 180 OUTPUT Mux OUTP TTLTO STAT 1 190 OUTPUT Mux TRIG SOUR TTLT1 200 OUTPUT Mux SCAN MODE RES 210 OUTPUT Mux SCAN PORT ABUS 220 OUTPUT Mux SCAN 100 177 230 OUTPUT QGMux OPC 240 ENTER 250 OUTPUT Mux SYST ERR 260 ENTER Mux A 270 PRINT A 280 OUTPUT Dvm INIT 290 OUTPUT Mux INIT 300 OUTPUT Dvm FETCh 310 ENTER Dvm Rdgs 320 PRINT Rdgs 330 END This example uses the E1406A Command Module Trig In and Trig Out ports to synchronize the multiplexer module bank 0 channel 0 to 2 closures to an external 3457A multimeter The multimeter s reading storage capacity is used to store measurement results For measurement synchronization the E1406A Trig Out port is connected to the 3457A multimeter Ext Trig port This trigger signals the multimeter to make the measurement The E1406A Trig Out port is connected to the 3457A multimeter Voltmeter Complete port This trigger causes the multiplexer to advance the scan Figure 2 7 shows how to connect the command module and multiplexer module to the 3457A multimeter This example uses GPIB select code 7 primary address 09 and secondary address 14 for the multiplexer and GPIB select code 7 and primary address 22 for the 3457A digital multimeter Using the Relay Multiplexer 47 1406
60. I 7L 0 IOEOL 7L 0 IOUTPUTS 70900L DIAG PEEK 11 IOEOI 7L 1 IOEOL 7L state 2 IOOUTPUTA 70900L send data 2 while bit number 0 IOENTER 70900L amp read bit number long read gt 6 amp 1 return 0 Appendix B Register Based Programming 109 Example Using The flowchart in Figure 4 shows typical timing sequence between Multimeter with a closing a multiplexer s channel and triggering a multimeter The registers Multiplexer used Multiplexer Status Register base 0446 Multimeter Status Register base 0446 Multimeter Command Register base 0846 Check Multiplexer Status Register Bit 7 Busy Check lt Status Register Bit 5 Se MM Comp Close Multiplexer Channel Wait for Measurement s to Complete Check Multiplexer Status Register Bit 7 Status Register Bit 0 Cmd Parm Ready Have all channels been 9 NN measured Retrieve Readings From Voltmeter Data Buffer Write Trigger Upcode to Command Register Figure 4 Program Timing Between Multiplexer and Multimeter The multiplexer s Status Register bit 7 is monitored to determine when a channel can be closed or opened and when a channel has finished closing or opening The ultimeter s Status bit 0 is monitored to determine when trigger opcode can be written t
61. In port The trigger input is assigned to the first switchbox that requested the external trigger source with an TRIGger SOURce EXTernal command Using TTL or ECL Trigger Bus Inputs With TRIGger SOURce TTLTrgn or ECLTrgn selected only one switchbox at a time can use the trigger bus selected on the E1406A Command Module bus The trigger input is assigned to the first switchbox that requested the trigger source with a TRIGger SOURce TTLTrgn ECLTrgn command Only one of the ten available trigger bus lines ECLO to 1 or TTLO to 7 can be specified at one time Assigning EXTernal I TTLTrg 1 ECLTrg Trigger Source A switchbox assigned with TRIGger SOURce EXT TTLT ECLT remains assigned to that source until the switchbox trigger source is changed to BUS HOLD or IMMediate When the source is changed the trigger source is available to the next switchbox that requests it with a TRIGger SOURce ECLTn command If a switchbox requests a trigger already assigned to another switchbox an error is generated Using Bus Triggers To trigger the switchbox with TRIGger SOURce BUS selected use the IEEE 488 2 common command TRG or the GPIB Group Execute Trigger GET command Trig Out Port Shared by Switchboxes See the OUTPut command Related Commands ABORt ROUTe SCAN OUTPut RST Condition TRIGger SOURce IMMediate Scanning Using External Triggers This example uses external triggering TRIG SOUR EXT to scan bank 0 channels 0 thr
62. Name Type Range of Values Default number numeric 1 through 99 N A Multiplexer Module Power on State The power on state is all channels relays open Note that SYSTem CPON ALL and RST opens all channels of all modules in a switchbox while SYSTem CPON number opens the channels in only the module card specified in the command Current operating mode as set by FUNCtion command will not be affected by execution of the SYSTem CPON number or RST commands Setting Card 1 Module to its Power on State SYST CPON 1 Set card 1 to its power on state SYSTem CTYPe number returns the module card type of a selected module in a switchbox Name Type Range of Values Default number numeric 1 through 99 N A 64 Channel Multiplexer Module Model Number The SYSTem CTYPe number command returns HEWLETT PACKARD El460A 0 A 02 00 where the 0 after E1460A is the module serial number always 0 and A 02 00 is an example of the module revision code number Reading the Model Number of a Card 1 Module SYST CTYP 1 Returns the model number Relay Multiplexer Command Reference 89 SYSTem ERRor SYSTem ERRor returns the error numbers and corresponding error messages in the error queue of a switchbox See Appendix C for a listing of switchbox error numbers and messages Comments Error Numbers Messages in the Error Queue Each error generated by a switchbox stores an error number and c
63. Rt ABORt Actions The ABORt command terminates a scan in progress by causing the switchbox to no longer wait for a trigger When the ABORt command is executed the last channel switched during the scan remains in the position Stopping Scan Enabled Via Interface When a scan is enabled via an interface an interface clear command CLEAR 7 can be used to stop the scan When the scan is enabled via the interface and TRIG SOUR BUS or HOLD is set you can use ABORt to stop the scan Restarting a Scan Use the INITiate command to restart the scan Related Commands ARM INITiate CONTinuous ROUTe SCAN TRIGger Stopping a Scan with ABORt This example stops a continuous two wire scan in progress single module switchbox TRIG SOUR BUS Trigger command will be via backplane bus interface TRG command generates trigger INIT CONT ON Set continuous scanning SCAN 100 107 IScan channels 0 to 7 in bank 0 INIT Start scan close channel 0 ABOR Abort scan in progress 62 Relay Multiplexer Command Reference Chapter 3 Subsystem Syntax ARM COUNt Parameters Comments Example Chapter 3 The ARM subsystem selects the number of scanning cycles 1 to 32767 for each INITiate command ARM COUNt number MIN MAX COUNt MIN MAX ARM COUNt number MIN MAX allows scanning cycles to occur a multiple of times 1 to 32 767 with one INITiate command when INITiate CONTinuous OFF 0 is set
64. T OPER ENAB 256 command 32768 is executed STAT QUES ENAB 256 unmasks the Scan Complete bit Figure 3 1 Relay Multiplexer Status System Registers Chapter 3 Relay Multiplexer Command Reference 85 STATus OPERation CONDition STATus OPERation CONDition returns the state of the Condition Register in the Operation Status Group The state represents conditions which are part of the instrument s operation The multiplexer driver does not set bit 8 in this register see STATus OPERation EVENIt STATus OPERation ENABle STATus OPERation ENABle lt number gt sets an enable mask to allow events recorded in the Event Register to send a summary bit to the Status Byte Register bit 7 For multiplexer modules when bit 8 in the Operation Status Register is set to 1 and that bit is enabled by the STATus OPERation ENABle command bit 7 in the Status Register is set to 1 Parameters Name Type Range of Values Default number numeric 1 through 65 535 N A Comments Setting Bit7 of the Status Register STATus OPERation ENABle 256 sets bit 7 of the Status Register to 1 after bit 8 of the Operation Status Register is set to 1 Related Commands ROUTe SCAN Example Enabling the Status Register STAT OPER ENAB 256 Enables bit 8 of the Operation Status Register to be reported to bit 7 OPR in the Status Register STATus OPERation ENABle STATus OPERation ENABle
65. TM 91 TTE T eae 91 aii TREE 92 Ies rq 92 Ee cle qc 92 TRIBGER SOURCE 94 IEEE 488 2 Common Commands Reference esses 95 Commands QUIK Referee dau cccsnaces dieci e bri d i deed a 96 Appendix Relay Multiplexer Specifications 444222 1 97 Appendix B Register Based Programming esee 99 About This eeu e 99 Register eei T UU 99 Base 99 ttc B gerentem ERE 102 The WRITE REGIONS P 102 ThE READ BOOIBIOER 2s es mea teen aun o deni us db 102 COMIC Register e M 103 ID and Device Type Registers d kot e rx RR raa RR nec 104 Control 104 Programming ESTNE 107 Appendix C Relay Multiplexer Error Messages 11 2 115 Notes AGILENT TECHNOLOGIES WARRANTY STATEMENT AGILENT PRODUCT 1460 64 Channel Relay Multiplexer Module DURATION OF WARRANTY
66. al of bank 2 channel 1 to the one wire HI COM terminal NOTE status register switch is set to one wire operating mode the FUNC 1 WIRE1 command is not required When operating in the one wire mode only one channel at a time can be closed 38 Using the Relay Multiplexer Chapter 2 SWITCH CARD 1 Wire High Common Cable Test Open 1 Wire Low Common Closed CH0990 wy 2 amp 1 Wire Low Ref OO OO 0995 Figure 2 1 Example Switching Channels One Wire Example Switching This example illustrates two wire mode operation The HI and LO terminals Channels Two Wire of bank 0 channels 0 and 7 are closed connecting them to the bank 0 HI and LO COM terminals Figure 2 2 shows how the multiplexer is configured For two wire operation the control relays are set as follows 0990 0991 are opened if using the channel list command with SCAN PORT ABUS and SCAN MODE mode Mode can be RES VOLT or NONE 0990 0991 left in their present state if mode is FRES 0992 0993 will close when SCAN PORT ABUS is selected during a scan see Scanning Channels 0994 0995 0996 remain in their present state with the following exceptions 0994 is closed in RES mode If card number WIRE2X64 2x64 configuration 0994 is closed in the RES and NONE modes In the FRES mode 0994 and 0995 are opened 0996 closes and co
67. annel list Query channel s SCAN channel list Define channels for scanning SCAN MODE lt node gt Set scan mode SCAN MODE Query scan mode SCAN PORT port Select Analog Bus SCAN PORT Query Analog Bus state STATus OPERation CONDition Returns status of Condition register OPERation ENABle number Enables events in the Event register to be reported OPERation ENABle Returns which bits in the Event register are unmasked OPERation EVENt Returns which bits in the Event register are set PRESet Sets Enable register bits to 0 SYSTem CDEScription lt number gt Returns description of module in switchbox CPON number ALL Sets specified module in a switchbox to its power on state CTYPe number Returns the module type ERRor Returns error number message to error queue TRIGger IMMediate Causes a trigger to occur SLOPe lt s ope gt SLOPe SOURce BUS SOURce ECLTrg 2 SOURce EXTernal SOURce HOLD SOURce IMMediate SOURce TTLTrgn SOURce Select negative polarity of the output trigger Query polarity of the output trigger Trigger source is TRG Trigger source is ECL Trigger bus line 0 or 1 Trigger source is Trig In port Hold off triggering Continuous internal triggering Trigger source is TTL Trigger bus line 0 7 Query current trigger source 96 Relay Multiplexer Command Reference Chapter 3 Appendix Relay Multiplexer Specifications Input Characteristics Maximum
68. any other reason REMOVE POWER and do not use the product until safe operation can be verified by service trained personnel If necessary return the product to Agilent for service and repair to ensure that safety features are maintained DO NOT service or adjust alone Do not attempt internal service or adjustment unless another person capable of rendering first aid and resuscitation is present DO NOT substitute parts or modify equipment Because of the danger of introducing additional hazards do not install substitute parts or perform any unauthorized modification to the product Return the product to Agilent for service and repair to ensure that safety features are maintained Declaration of Conformity Declarations of Conformity for this product and for other Agilent products may be downloaded from the Internet There are two methods to obtain the Declaration of Conformity Go to http regulations corporate agilent com DoC search htm You can then search by product number to find the latest Declaration of Conformity Alternately you can go to the product web page www agilent com find E14604 click on the Document Library tab then scroll down until you find the Declaration of Conformity link Notes Chapter 1 Getting Started Using This Chapter This chapter describes the E1460A 64 Channel Relay Multiplexer module shows how to connect external wiring and shows how to get started programming the module using Stan
69. ary bit ESB message available bit MAV and questionable data bit QUE in the Status Byte Register bits 7 6 5 4 and 3 respectively can be queried with the 5 command Use the ESE command to query the unmask value for the Standard Event Status Register the bits you want logically OR d into the summary The registers are queried using decimal weighted bit values The decimal equivalents for bits 0 through 15 are included in Figure 3 1 A numeric value of 256 executed in a STAT OPER ENABle number command allows only bit 8 to generate a summary bit The decimal value for bit 8 is 256 The decimal values are also used in the inverse manner to determine which bits are set from the total value returned by EVENt or CONDition query The multiplexer driver exploits only bit 8 of Operation Status Register This bit is called the scan complete bit which is set whenever a scan operation completes Since completion of a scan operation is an event in time bit 8 will never appear set when STAT OPER COND is queried However you can find bit 8 set with the STAT OPER EVEN query command 84 Relay Multiplexer Command Reference Chapter 3 Output Queue QUE Questionable Data Message Available Standard Event 5 Request Service Operation Status Condition Register EN Enable Register SRQ Interface Bus Service Reques
70. ation for the previous Edition Each new Edition or Update also includes a revised copy of this documentation history page Edition T us ccce erede RS RUE DS January 1990 Edili0n 2 2s sov exe July 1992 Edition 3 eer HET MULUS S UE ise August 1993 Edition ita EL IARE October 1994 Edition S css vaca iub hito Pu edd November 1995 ain 2001 Edition G oou T oe OS DIOS September 2012 Safety Symbols Instruction manual symbol affixed to product Indicates that the user must refer to Alternating current AC the manual for specific WARNING or CAUTION information to avoid personal Di DC injury or damage to the product irect current DC Warning Risk of electrical shock Indicates the field wiring terminal that must be connected to earth ground before operating the equipment protects against electrical shock in case of fault Calls attention to a procedure practice or condition that could cause bodily injury or death WARNING Calls attention to a procedure practice or Frame or chassis ground terminal typically CAUTION ae or LL connects to the equipment s metal frame 2 x WARNINGS The following general safety precautions must be observed during all phases of op
71. canning channels refer to the previous examples By switching the control relays 0990 to 0996 the COM lines can be connected to the analog bus connection for measurement using a VXI multimeter such as the E1411B or external multimeter such as the 3457A A special terminal enables the multiplexer to perform cable or harness testing You can connect the multiplexer analog bus to other measurement or switching devices to perform measurements During a scan the control relays 0992 to 0994 and 0996 are automatically switched when configured using the SCAN PORT command See ROUTe SCAN PORT on for more information When switching channels using the OPEN and CLOSe commands the analog bus must be manually connected When the FUNCtion command is executed all analog bus control relays are opened If an analog bus connection is required you must close the appropriate control relay Once switched the relay remains closed unless specifically opened OPEN command power up or RST Control relay numbers and functions follow 0992 Connects lower 32 channels banks 0 to 3 to the analog bus H1 terminals 0993 Connects upper 32 channels banks 4 to 7 to the analog bus H2 terminals 0994 Connects lower and upper analog buses together 64 channel 0996 Connects analog bus Guard G to the LO line on the upper 32 channels banks 4 to 7 In this example as shown in Figure 2 9 the HI and LO terminals of bank 0 channel 0
72. channels place a colon between the channel numbers You can do this for both single or multiple module switchboxes See ROUTe OPEN and ROUTe CLOSe for additional information Querying Open Closed Channels The CLOS channel list and OPEN channel list commands determine if the channel in the channel list is open or closed respectively The query command does not determine if in the event of a hardware failure the channel remains open closed See ROUTe OPEN and ROUTe CLOSe for additional information Switching Control Relays The control relays 0990 to 0996 can also be Switched using the OPEN and CLOSe commands provided the FUNCtion command is executed first See ROUTe JOPEN and ROUTe CLOSe for additional information FRES When operating in one wire mode 4 wire resistance measurement FRES is not supported See the ROUTe SCAN MODE command for additional information Analog Bus Connection When Scanning In all four modes of operation the analog bus can be connected during a scan using the SCAN PORT command In three wire mode the paired bank 4 7 channel LO terminal can be connected to the analog bus Guard terminal See the ROUTe SCAN PORT command for additional information Using the Relay Multiplexer 37 Analog Bus Connection When Not Scanning When opening and closing individual channels in all four modes of operation the analog bus can be connected by switching the control relays 0992 0994 0996
73. dard Commands for Programmable Instruments SCPI This chapter includes Multiplexer lt 11 Configuring the 15 Configuring Terminal Modules 23 Programming the 29 Multiplexer Description Multiplexer Components The E1460A is a VXIbus C Size register based product that provides switching multiplexing of up to 64 two wire channels Switching consists of connecting a channel s HI and or LO line to COM in that bank The multiplexer can operate in a C Size VXlbus mainframe using a command module such as an E1406A Command Module The E1460A 64 Channel Relay Multiplexer module consists of a relay Switch card and a standard screw type terminal module The E1460A is also available with Option A3E that provides a crimp and insert terminal housing and connectors Various configurations can be set by programming closing certain switch card relays and or selection of wire jumpers on the relay Switch card and terminal module The E1460A is used when high switch densities such as wire harness cable testing semiconductor testing and or printed circuit board testing is required Although it is primarily a dual 32 channel two wire multiplexer the module can be configured to perform one wire two wire three wire and four wire functions By using switch card wire jumpers
74. e Terminal Modules Continued on next page 26 Getting Started Chapter 1 6 Replace Wiring Panel Cut required holes in panels for wire exit Keep wiring panel exit hole as small as possible A Hook in the top cover tabs onto the fixture 7 Replace Clear cover tighten screws 8 Install on Multiplexer Extraction Levers 9 Push the Extraction Levers to Lock the Terminal Module onto the Multiplexer 1 Figure 1 12 Steps to Wire Terminal Modules continued Getting Started 27 Attaching Terminal Figure 1 13 shows how to attach a terminal module to the multiplexer and Modules to the how to remove a terminal module from the multiplexer Multiplexer 1 Extend the extraction levers on the terminal module Extraction Lever Use small screwdriver to release the two extraction levers Extraction Lever 2 Align the terminal module connectors j to the multiplexer connectors 3 Apply gentle pressure to attach the terminal module to the fi multiplexer 4 Push in the extraction levers to lock the ter
75. e selected using channel list 01 selects and 00 selects LO If one wire mode is selected and a four digit channel number is used the LO line is selected Two Wire Mode WIRE2 WIRE2X64 Switches the HI and LO terminals of a channel in banks 0 through 3 or banks 4 through 7 to that bank s HI COM and LO COM terminals 72 Relay Multiplexer Command Reference Chapter 3 Chapter 3 NOTE WIRE2 Configures the E1460A as two independent 2x32 multiplexers WIRE2X64 Switches the HI and LO terminals of a channel in banks 0 through 7 to that bank s HI COM and LO COM terminals A maximum of 64 two wire channels can be switched This mode is available via E1406A Switchbox Rev A06 00 or later Prior to this revision closing control relay 0995 in two wire mode will change the card configuration to a single 64 channel two wire multiplexer Three Four Wire Modes WIRE3 WIRE4 When closing a channel in three wire or four wire modes only the lower bank 0 3 is specified The upper bank pair 4 7 will automatically close the specified channel If an attempt is made to close the upper bank pair 4 7 channels an error will be generated Closing Channels To close a single channel use ROUT CLOS ssbc or ssOhbc multiple channels use ROUT CLOS ssbc ssbc or Q ssOhbc ssOhbc sequential channels use ROUT CLOS ssbc ssbc or QssOhbc ssOhbc groups of sequential channels use ROUT CLOS Qssbc
76. ects resulting from a improper or inadequate maintenance or calibration b software interfacing parts or supplies not supplied by Agilent c unauthorized modification or misuse d operation outside of the published environmental specifications for the product or e improper site preparation or maintenance 7 TO THE EXTENT ALLOWED BY LOCAL LAW THE ABOVE WARRANTIES ARE EXCLUSIVE AND NO OTHER WARRANTY OR CONDITION WHETHER WRITTEN OR ORAL IS EXPRESSED OR IMPLIED AND AGILENT SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OR CONDITIONS OF MERCHANTABILITY SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE 8 Agilent will be liable for damage to tangible property per incident up to the greater of 300 000 or the actual amount paid for the product that is the subject of the claim and for damages for bodily injury or death to the extent that all such damages are determined by a court of competent jurisdiction to have been directly caused by a defective Agilent product 9 TO THE EXTENT ALLOWED BY LOCAL LAW THE REMEDIES IN THIS WARRANTY STATEMENT ARE CUSTOMER S SOLE AND EXLUSIVE REMEDIES EXCEPT AS INDICATED ABOVE IN NO EVENT WILL AGILENT OR ITS SUPPLIERS BE LIABLE FOR LOSS OF DATA OR FOR DIRECT SPECIAL INCIDENTAL CONSEQUENTIAL INCLUDING LOST PROFIT OR DATA OR OTHER DAMAGE WHETHER BASED IN CONTRACT TORT OR OTHERWISE FOR CONSUMER TRANSACTIONS IN AUSTRALIA AND NEW ZEALAND THE WARRANTY TERMS CONTAINED IN THIS STATEMENT EXCEPT TO
77. els QssOhbc ssOhbo for sequential channels QssOhbc ssOhbc ssOhbc ssOhboc for groups of sequential channels or any combination of the above Two wire three wire or four wire modes and control relays where b 099 ssbc for a single channel ssbc ssbc for multiple channels ssbc ssbc for sequential channels ssbc ssbc ssbc ssbc for groups of sequential channels Chapter 1 Examples Multiplexer Module Channel List Chapter 1 or any combination of the above Low or High Terminal Number The LO or HI terminal number is specified for one wire mode only and identifies what terminal will be used during one wire switching This number can be omitted when the low terminal is the desired selection Only valid terminals can be accessed in a channel list 00 is specified to use the LO L terminal of the bank and channel selected Defaults to LO terminal if not entered 01 is specified to use the HI H terminal of the bank and channel selected Bank Number The bank number identifies what bank of eight channels will be affected during switching The bank numbers are 0 to 7 for one wire and two wire modes and 0 to 3 for three wire and four wire modes Only valid banks can be accessed in a channel list Closing opening or querying banks 4 to 7 when operating in three wire and four wire modes will generate an error Channel Number The channel number identifies what channel will be switched to its
78. eplace the shield and re install the six screws Chapter 1 Getting Started 19 NOTE When wire jumpers JM10 through JM17 removed the odd numbered banks can no longer be connected to the analog bus For example if JM10 and JM11 are removed then bank 1 can no longer be connected to the analog bus terminals except through user wiring When wire jumpers JM2 through JM5 are removed banks 2 3 and 4 5 respectively can no longer be connected to the analog bus For example if JM2 and JM3 are removed then banks 2 and 3 can no longer be connected to the analog bus terminals except through user wiring Table 1 2 Jumper Configurations Bank Number lt Jumper JM Number 0 Jumper 1 No Jumper Configuration Bank 0 Bank 1 Bank 2 Bank 1 2 3 4 5 10 11 12 13 14 15 16 17 1 32 1x32 1 32 1 32 010 0 0 1 16 1 16 1 16 1 16 1 1 0 1 8 1 8 1 8 1 8 1 1 1 1 1 1 1 8 1 8 1 16 1 16 1 1 1 1 0 0 1x16 1x16 1x8 1x8 1 1 0 0 1 1 Bank Number lt Jumper JM Number 0 Jumper 1 Jumper Configuration Bank 4 Bank 5 Bank 6 Bank 7 1 2 3 4 5 10 11 12 13 14 15 16 17 1x32 1x32 1x32 1x32 E 0 0 E 0 0 0 1x16 1x16 1x16 1x16 1 1 0 1 8 1 8 1 8 1 8 1 1
79. erate an error TRIGger SLOPe is used to query the polarity of the output trigger For the 1460 this query always returns NEG Query Trigger Slope TRIG SLOP Always returns NEG TRIGger SOURce source specifies the trigger source to advance the channel list during scanning Name Type Range of Values Default BUS discrete TRG or GET command IMM ECLTrgn numeric ECL Trigger bus line 0 or 1 IMM EXTernal discrete Trig In port IMM HOLD discrete Hold Triggering IMM IMMediate discrete Immediate Triggering IMM Trgn numeric TTL Trigger bus line 0 7 IMM Enabling the Trigger Source The TRIGger SOURce command only selects the trigger source The INITiate IMMediate command enables the trigger source Chapter 3 Chapter 3 Example Using the TRIGger Command You can use TRIGger IMMediate to advance the scan when TRIGger SOURce BUS or TRIGger SOURce HOLD is selected One Trigger Input Selected at a Time Only one input ECLTrgO or 1 0 1 2 3 4 5 6 or 7 or EXTernal can be selected at one time Enabling a different trigger source will automatically disable the active input For example if TTLTrg1 is the active input and TTLTrg4 is enabled TTLTrg1 will become disabled and TTLTrg4 will become the active input Using External Trigger Inputs With TRIGger SOURce EXTernal selected only one switchbox at a time can use the external trigger input at the E1406A Trig
80. eration service and repair of this product 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 product Agilent Technologies assumes no liability for the customer s failure to comply with these requirements Ground the equipment For Safety Class 1 equipment equipment having a protective earth terminal an uninterruptible safety earth ground must be provided from the mains power source to the product input wiring terminals or supplied power cable DO NOT operate the product in an explosive atmosphere or in the presence of flammable gases or fumes For continued protection against fire replace the line fuse s only with fuse s of the same voltage and current rating and type DO NOT use repaired fuses or short circuited fuse holders Keep away from live circuits Operating personnel must not remove equipment covers or shields Procedures involving the removal of covers or shields are for use by service trained personnel only Under certain conditions dangerous voltages may exist even with the equipment switched off To avoid dangerous electrical shock DO NOT perform procedures involving cover or shield removal unless you are qualified to do so DO NOT operate damaged equipment Whenever it is possible that the safety protection features built into this product have been impaired either through physical damage excessive moisture or
81. es is disabled OUTPut TTLTrg STATe OFF Trigger output from TTLT sources is disabled ROUTe 5 Channel list volts ohms measurements disabled ROUTe SCAN PORT NONE Analog bus port connection disabled TRIGger SOURce IMM Will advance scanning cycles automatically 36 Using the Relay Multiplexer Chapter 2 Switching Channels NOTE Switching Channels Chapter 2 Comments For general purpose switching you can switch channels connect or disconnect signals in one wire two wire three wire or four wire operating modes by opening or closing specific channel s For more information see the ROUTe FUNCtion command There is no need to send the ROUTe FUNCtion command if the status register switch see Setting the Status Register Switch is set to the correct operating mode Setting Multiplexer Function Use FUNCtion card number function to configure the Relay Multiplexer where function lt WIRE1 WIRE2 WIRE2X64 WIRE3 WIRE4 Opening Closing Channels Use CLOSe channel list to close bank channel s and OPEN channel list to open bank channel s Channel list has the form ssOhbc where ss card number 00 99 Oh one wire mode only HI LO switching 00 or 01 b bank number 0 7 and c channel number 0 7 Opening Closing Multiple Channels To close or open multiple channels place a comma between the channel numbers To close or open a range of
82. esses for register based devices are located in the upper 2596 of VXI A16 address space Every VXI device up to 256 15 allocated a 32 word 64 byte block of addresses With twelve registers the E1460A multiplexer uses twelve of the 64 addresses allocated Figure B 1 shows the register address location within A16 as it might be mapped by an embedded controller Figure B 2 shows the location of A16 address space in the E1406A command module When you are reading or writing to a multiplexer register a hexadecimal or decimal register address is specified This address consists of a base address plus a register offset The base address used in register based programming depends on whether the A16 address space is outside or inside the command module Register Based Programming 99 A16 Address Space When the E1406A command module is not part of your VXIbus system Outside the Command see Figure B 1 the multiplexers base address is computed as shown Module where 16 at the end of the address indicates a hexadecimal number 00016 LADDR 64 49 152 LADDR 64 19 where 00046 49 152 is the starting location of the register addresses LADDR is the multiplexer s logical address and 64 is the number of address logical address is 112 7046 If this address is not changed the multiplexer will have a base address of C0004g 112 64 C00046 1C0046 DC0046 or 49 152 112 64 49 152 7168 56 320
83. ger bus line The command returns 1 if the specified bus line is enabled or 0 if the specified bus line is disabled Query ECL Trigger Bus Enable State This example enables ECL Trigger bus line 0 and queries the enable state The OUTPut ECLTrgn command returns 1 since the port is enabled OUTP ECLTO STAT 1 Enable ECL Trigger bus line 0 OUTP ECLTO Query bus enable state OUTPut EXTernal STATe Parameters Chapter 3 OUTPut EXTernal STATe lt mode gt enables or disables the Trig Out port on the E1406A Command Module to output a trigger when a channel is closed during a scan ON 1 enables the port and OFF 0 disables the port Name Type Range of Values Default lt mode gt boolean OFF 10 Relay Multiplexer Command Reference 69 Comments Example Enabling Trig Out Port When enabled a pulse is output from the Trig Out port after each scanned switchbox channel is closed If disabled a pulse is not output from the port after channel closures The output is a negative going pulse Trig Out Port Shared by Switchboxes Only one switchbox configuration can use the selected trigger at a time When enabled the Trig Out port is pulsed by the switchbox each time a scanned channel is closed To disable the output for a specific switchbox send the OUTP OFF or 0 command for that switchbox One Output Selected at a Time Only one output ECL 0 or 1 TTL
84. ghly recommended Related Commands ROUTe CLOSe ROUTe OPEN ROUTe SCAN RST Condition All multiplexer channels are open Example Opening Multiplexer Channels This example opens channel 0 bank 0 in card 1 and channel 7 bank 6 in card 2 of a two module switchbox Both modules are in two wire mode OPEN 9100 267 1100 opens channel 0 bank 0 of card 1 and 267 opens channel 7 bank 6 of card 2 78 Relay Multiplexer Command Reference Chapter 3 ROUTe OPEN Comments Example ROUTe SCAN Parameters Chapter 3 ROUTe OPEN channel list returns the current state of the channel s queried Channel list has the form ssbc or ssOhbc see ROUTe OPEN for definition The command returns 1 if channel s are open or returns O if channel s are closed Query is Software Readback The ROUTe OPEN command returns the current software state of the channel s specified It does not account for relay hardware failures A maximum of 128 channels at a time can be queried for a multiple module switchbox Three Four Wire Modes WIRE3 WIRE4 When configured for three or four wire modes the upper bank pair 4 7 channels cannot be queried If an attempt is made to query the upper bank pair 4 7 channels an error will be generated Query Channel Open State This example opens channel 0 bank 0 in card 1 and channel 7 bank 6 in card 2 of a two module switchbox and queries the channel open states S
85. gt 6 amp 1 insert your multimeter programming code here send data 2 0 IOEOI 7L 0 IOEOL 7L 0 IOOUTPUTS 70900L DIAG POKE 10 IOEOI 7L 1 IOEOL 7L state 0 IOOUTPUTA 70900L send data 3 send data 0 BASE ADDR 4 IOEOI 7L 0 IOEOL 7L 0 IOOUTPUTS 70900L DIAG PEEK 11 IOEOI 7L 1 IOEOL 7L state 2 IOOUTPUTA 70900L send data 2 while bit number 0 112 Register Based Programming Appendix B IOENTER 70900L amp read bit number long read gt 6 4 1 return 0 Example Scanning This example shows direct register programming using an E1499A V 382 Channels HP UX embedded computer running HP UX and using the SICL interface library Program to scan 1460 68 69 channels with a V 382 KEKE FEK KEK EEE K EEE KEKEE EKEK KEREKEK KEEK KEE E KEEK KEEK KEE KKE EEE KEKE KEKE EE KEE KKE include lt stdio h gt include lt fcntl h gt include lt stdlib h gt include lt sicl h gt include lt time h gt define E1460A vxi 112 Logical Address of device define BUSY 0x80 typedef unsigned short word typedef struct device_registers word id_reg word devtype_reg word statcntl reg word dummy reg 13 word reg word reg word 2 reg word bank
86. he following multiplexer registers Registers Status Control Register base 0446 Bank 0 Relay Control Register base 2045 Bank 1 Relay Control Register base 2246 Bank 2 Relay Control Register base 2446 Bank 3 Relay Control Register base 2645 Bank 4 Relay Control Register base 2816 Bank 5 Relay Control Register base 2 46 Bank 6 Relay Control Register base 2C4g Bank 7 Relay Control Register base 2 16 There are ten WRITE and twelve READ registers on the multiplexer This section contains a description and a bit map for each register Channels 0990 0996 Relay Control Register base 3046 The READ read the following multiplexer registers Registers 102 Register Based Programming Manufacturer ID Register base 0046 Device Type Register base 0246 Status Control Register base 0446 Bank 0 Relay Control Register base 2046 Bank 1 Relay Control Register base 2246 Bank 2 Relay Control Register base 2446 Bank 3 Relay Control Register base 2646 Bank 4 Relay Control Register base 2846 Bank 5 Relay Control Register base 2 46 Bank 6 Relay Control Register base 2 46 Bank 7 Relay Control Register base 2 46 Channels 0990 0996 Relay Control Register base 3046 Appendix B Status Control You can perform reads and writes to the Status Control Register Register ba
87. imeter and E1460A multiplexer modules to perform a DC voltage measurement on all 64 channels in a scanning multimeter configuration In the scanning multimeter configuration the multiplexer module s logical address must be set one number higher than the multimeter module Figure 2 8 shows how to connect the multiplexer module to the multimeter module This example uses GPIB select code 7 primary address 09 and secondary address 03 for the scanning multimeter multimeter multiplexer SWITCH CARD OPEN CLOSE CH OPEN CLOSE 0991 0990 To Hbc ex ANALOG BUS MULTIMETER TERMINAL MODULE H CH 0 DC VOLTAGE 1 H 1 DC VOLTAGE 2 H 2 DC VOLTAGE 3 Voltmeter Module Command Modu Chapter 2 10 20 30 40 50 60 70 80 90 Multiplexer Module Figure 2 8 Example Scanning Multimeter DCV Measurements DIM Rdgs 1 64 OUTPUT 70903 RST OUTPUT 70903 ROUT FUNC1 WIRE2X64 Dimension computer to store readings Reset the scanning multimeter module to a known state Required to close control relay 0995 to access upper 4 banks OUTPUT 70903 MEAS VOLT DC 100 177 Configure the scanning multimeter to measure ENTER 70903 Rdgs FOR I 1 TO 64 PRINT Rdgs 1 NEXT I END voltage on bank
88. ince the channels are programmed to be opened 1 1 is returned OPEN 100 267 1100 opens channel 0 bank 0 1 and 267 opens channel 7 bank 6 card 2 OPEN 100 267 Query state of channel 0 bank 0 card 1 and channel 7 bank 6 card 2 ROUTe SCAN channel list defines the channels to be scanned Channel list has the form QssOhbc where ss card number 00 99 Oh 7 one wire mode only high low switching 00 or 01 b lt bank number 0 7 and c lt channel number 0 7 Name Type Range of Values Default channel list numeric ss 00 00 to 550177 1 wire 5500 to ss77 2 wire 5500 to ss037 3 wire 5500 to ss037 4 wire Relay Multiplexer Command Reference 79 ROUTe SCAN MODE Parameters Defining Scan List When ROUTe SCAN is executed the channel list is checked for valid card terminal bank and channel numbers An error is generated for an invalid channel list 64 Channel Limit Individual channel numbers are limited to 64 due to the maximum length of command in the current driver Scanning Channels To scan a single channel use ROUT SCAN ssbc or ssOhbc multiple channels use ROUT SCAN ssbc ssbc or QssOhbc ssOhbc sequential channels use ROUT SCAN ssbc ssbc or QssOhbc ssOhbc groups of sequential channels use ROUT SCAN ssbc ssbc ssbc ssbc or lt ssOhbc ssOhbc ssOhbc ssOhbc or
89. ing cycles and starts the scanning cycle Subsystem Syntax INITiate CONTinuous mode CONTinuous IMMediate INITiate CONTinous INITiate CONTinuous mode enables or disables continuous scanning cycles Parameters Name lt mode gt Type boolean Range of Values 0 11 Default OFF 10 Comments Continuous Scanning Operation Continuous scanning is enabled with the INITiate CONTinuous ON or INITiate CONTinuous 1 command Sending the INITiate IMMediate command closes the first channel in the channel list Each trigger from the source specified by the TRIGger SOURce command advances the scan through the channel list A trigger at the end of the channel list closes the first channel in the channel list and the scan cycle repeats Non Continuous Scanning Operation Non continuous scanning is enabled with the INITiate CONTinuous OFF or INITiate CONTinuous 0 command Sending the INITiate IMMediate command closes the first channel in the channel list Each trigger from the source specified by the TRIGger SOURce command advances the scan through the channel list At the end of the scanning cycle the last channel in the channel list is closed and the scanning cycle stops Stopping Continuous Scan See the ABORt command Related Commands ABORt ARM COUNt TRIGger RST Condition INITiate CONTinuous OFF 0 Chapter 3 Relay Multiplexer Command Reference 65 Exam
90. iplexer Command Reference 87 SYSTem The SYSTem subsystem returns the numbers and messages in the error queue of a switchbox and returns the switchbox module descriptions Subsystem Syntax SYSTem CDEScription number CPON number ALL CTYPe number ERRor SYSTem CDEScription SYSTem CDEScription number returns the module description Parameters Name Type Range of Values Default number numeric 1 through 99 N A Comments Multiplexer Module Description The SYSTem CDEScription command returns the following E1460A descriptions depending on mode currently configured One Wire Mode 128 Channel S E Relay Mux Two Wire Mode Dual 32 Channel 2 Wire Relay Mux Two Wire 64 Mode 64 Channel 2 Wire Relay Mux Three Wire Mode 32 Channel 3 Wire Relay Mux Four Wire Mode 32 Channel 4 Wire Relay Mux Example Reading the Description of a Card 1 Module This example selects the one wire mode then queries the description Because one wire mode is selected the query command returns WIRE 1 FUNC 1 WIRE1 Set mode to one wire SYST CDES Return the description 88 Relay Multiplexer Command Reference Chapter 3 SYSTem CPON Parameters Comments Example SYSTem CTYPe Parameters Comments Example Chapter 3 SYSTem CPON number ALL sets the selected module card in a switchbox to its power on state with the exception of the mode selected
91. le closes channel 0 bank 0 in card 01 and channel 7 bank 6 in card 02 of a two module switchbox Both modules are in two wire mode CLOS 100 267 100 closes channel 0 bank 0 of card 1 and 267 closes channel 7 bank 6 of card 2 ROUTe CLOSe ROUTe CLOSe lt channel_list gt returns the current state of the channel s queried Channel list has the form ssbc or ssOhbc see ROUTe CLOSe for definition The command returns 1 if channel s are closed or returns 0 if channel s are open Comments Query is Software Readback The ROUTe CLOSe command returns the current software state of the channel s specified It does not account for relay hardware failures A maximum of 128 channels at a time can be queried for a multiple module switchbox Three Four Wire Modes WIRE3 WIRE4 When configured for three or four wire modes the upper bank pair 4 7 channels cannot be queried If an attempt is made to query the upper bank pair 4 7 channels an error will be generated Example Query Channel Closure This example closes channel 0 bank 0 in card 01 and channel 7 bank 6 in card 02 of a two module switchbox and queries channel closure Since the channels are programmed to be closed 1 1 is returned CLOS 100 267 1100 closes channel 0 bank 0 card 1 and 267 closes channel 7 bank 6 card 2 CLOS 100 267 IQuery state of channel 0 bank 0 card 1 and channel 7 bank 6 card 2 74 Relay Multiplexer Co
92. le is usually at GPIB address 70900 A typical result follows The specific result depends on the specific drivers previously loaded into your command module Getting Started 29 Downloading New Driver NOTE Multiplexer Addressing SCPI Commands Format 30 Getting Started SYSTEM E1406A A 08 00 ROM IBASIC IBASIC A O4 02 ROM VOLTMTR E1326B A 06 00 ROM SWITCH SWITCHBOX A 07 00 ROM COUNTER E1332A A 04 02 ROM E1333A A 04 02 ROM DIG l O E1330A A O4 03 ROM D A E1328A A 04 02 ROM 3 Determine whether to install a new driver The E1460A requires a SWITCH Driver Revision of A 08 03 or later or VOLTMTR Driver Revision A 06 03 or later In the example response above the currently installed drivers are VOLTMTR E1326A A 06 00 ROM SWITCH SWITCHBOX A 07 00 ROM In this example you must download a new SWITCH or VOLTMTR driver depending upon which driver you chose in Step 1 To download a new driver choose your operating system and interface from the following list and follow the related instructions Windows via GPIB or RS 232 For the fastest download use GPIB rather than RS 232 Use the VXI Installation Consultant VIC VIC is a hardware installation program that helps you configure and install VXI instruments and can also download DOS formatted instrument drivers VIC downloads drivers during the configuration process and stores a copy of the driver in the NVICNDRIVERS directory the FIRST TIME the instrume
93. lly closes the appropriate control relays 0990 0996 For more information see the E1326B E1411B User s Manual The cable test example that follows can be expanded to test cables with more than 4 conductors Continuity is checked by closing additional channel relays to test the odd numbered wires on the first loop pass and the even numbered wires on the second loop pass lines 60 180 Insulators are checked in groups of four wires by adding another loop similar to lines 210 to 420 Using the Relay Multiplexer 53 54 Using the Relay Multiplexer For this example the multiplexer module is configured to test a 4 conductor cable Jumper JM1 must be removed to isolate the cable test terminal Jumpers JM2 and JM3 must be removed to isolate bank 0 from bank 2 Figure 2 10 shows how to connect the cable under test and the multimeter to the multiplexer This example uses GPIB select code 7 primary address 09 and secondary address 03 for the multimeter and GPIB select code 7 primary address 09 and secondary address 14 for the multiplexer In the program lines 10 30 set up multimeter for resistance measurement Lines 40 50 reset multiplexer and switch banks 0 3 to analog bus Lines 60 180 measure continuity of cable The first loop pass measures wires 1 and 3 and the second loop pass measures wires 2 and 4 Lines 190 420 measure insulation short circuit of cable The first loop pass measures wires 1 to 3 2 to 3 2 to 4 1 to 4 and 1 to
94. ltiplexer The program monitors the multiplexer s Standard Event Status Register for an error condition See the E1406A Command Module User s Manual for detailed information on the Standard Event Status Registers If no errors occur the multiplexer functions as programmed If errors do occur the multiplexer interrupts the computer and the error codes and messages are read from the error queue This example uses GPIB select code 7 primary address 09 and secondary address 14 for the multiplexer ON INTR 7 CALL Errmsg ENABLE INTR 7 2 OUTPUT 70914 SRE 32 OUTPUT 70914 ESE 64 END SUB Errmsg DIM Message 256 CLEAR 70914 B lt SPOLL 70914 REPEAT OUTPUT 70914 SYST ERR ENTER 70914 Code Message PRINT Code Message UNTIL Code 0 OUTPUT 70914 CLS STOP SUBEND Call computer subprogram Errmsg if a multiplexer programming error occurs Enable the computer to respond to an interrupt from the multiplexer Unmask the event status bit in the multiplexer s Status Register Unmask the error conditions in multiplexer Standard Event Status Register Program multiplexer for desired application Error Message When an error occurs clear the multiplexer to regain control Execute a serial poll to clear the service request bit in the Status Register Read all error messages in the multiplexer error queue Clear all bits in the multiplexer s Standard Event Status Regis
95. lution the largest value Multimeter to perform measurement when trigger received on TTL Trigger bus line 0 Multimeter to cause trigger on TTL trigger bus line 1 when measurement complete Multimeter to receive 64 triggers Multimeter operations complete Enters 1 when complete Resets the multiplexer to known state Configures multiplexer for 64 channels and closes control relay 0995 Multiplexer to cause trigger on TTL trigger bus line 0 when channel close complete Using the Relay Multiplexer 45 120 OUTPUT 70914 TRIG SOUR TTLT1 Multiplexer to advance scan when trigger received in TTL trigger bus line 1 130 OUTPUT 70914 SCAN MODE VOLT Sets switchbox measurement to volt used to make 2 wire resistance measurement on multimeter s HI LO terminals 140 OUTPUT 70914 SCAN PORT ABUS Closes control relays 992 and 993 connecting the analog bus to the upper and lower four bank commons 150 OUTPUT 70914 SCAN 100 177 Defines channel list to scan bank 0 channel 0 to bank 7 channel 7 160 OUTPUT 70914 OPC Multiplexer operations complete 170 ENTER 70914 Enters 1 when complete 180 OUTPUT 70903 READ Places multimeter in wait for trigger state Will send measurement results to output buffer when triggered 190 OUTPUT 70914 INIT Closes bank 0 channel 0 and enables the scan Causes a trigger output on TTL Trigger bus line O that initiates the multimeter to make a measuremen
96. ly saved state Enter the number 0 9 in the numeric state parameter of the desired saved state If SAV was not previously executed using the selected number the multiplexer module will configure to the reset values refer to table 2 2 NOTE RST and SAV do not affect the operating mode as set by the FUNCtion command or status register switch positions If using the FUNCtion command to set the operating mode the SAV RCL command must be executed AFTER the FUNCtion command Detecting Error There are two general approaches to error checking polling and using Conditions interrupts An example of each method follows Example Error Checking simplest but most time consuming method is to ask the instrument Using Polling whether there are errors at every step of the switching process This is called polling and is illustrated in the following example 10 DIM num 256 20 OUTPUT 70914 CLOS 101 30 OUTPUT 70914 SYST ERR 40 ENTER 70914 Err num 50 IF VAL num 0 THEN 60 PRINT Error Err num 70 STOP 80 END IF 90 continues 56 Using the Relay Multiplexer Chapter 2 Example Error Checking Using Interrupts Chapter 2 50 60 70 80 90 100 120 130 140 150 160 170 180 190 200 210 The second approach to error checking involves the use of interrupts The following program is a method of checking for errors using interrupts as you program the mu
97. measurement mode FRES on card 1 of a single module switchbox then queries the measurement state Because four wire ohms mode is selected the query command returns FRES SCAN MODE FRES Select four wire ohms scanning mode SCAN MODE Query the scanning mode ROUTe SCAN PORT lt port gt enables or disables the closing of the analog bus connection control relays 0992 0993 and 0996 during scanning SCAN PORT ABUS closes the appropriate control relay for analog bus connections The ROUTe SCAN PORT NONE command prevents closing the control relays Name Type Range of Values Default lt port gt discrete ABUS NONE NONE Order of Command Execution Measurement modes are selected by the ROUTe FUNCtion and ROUTe SCAN MODE commands Then the ROUTe SCAN PORT command followed by the ROUTe SCAN channel list command Analog Bus Connection The SCAN PORT ABUS command only connects disconnects the analog bus during scans To connect disconnect the analog bus when not scanning channels it is necessary to switch the appropriate control relays 0992 0993 and 0996 See the ROUTe CLOSe or ROUTe OPEN for more information RST Condition ROUTe SCAN PORT NONE 82 Relay Multiplexer Command Reference Chapter 3 Example Selecting the Analog Bus This example selects the four wire ohms measurement mode FRES on card 1 of a single module switchbox and then enables the analog bus connection Cont
98. minal module onto the multiplexer ki n ip Extraction Levers E EN Qa D To remove the terminal module from the multiplexer use a small screwdriver to release the two extraction levers and push both levers out simultaneously to free it from the multiplexer Figure 1 13 Attaching a Terminal Module to the Multiplexer 28 Getting Started Chapter 1 Programming Multiplexer NOTE Checking SCPI Drivers What are SCPI Device Drivers Checking the SCPI Driver Chapter 1 Revision The multiplexer modules are programmed using either a switchbox or scanning multimeter configuration To program the multiplexer modules using SCPI commands you must choose the controller language interface address and SCPI commands to be used Guidelines to choose SCPI commands for the multiplexer follow This discussion applies only to SCPI programming See Appendix B Register Based Programming for details on multiplexer module registers The E1460A operates with Switchbox Driver Revision A 08 03 or later or with Scanning Voltmeter Driver Revision A 06 03 or later The E1460A may be recognized by earlier driver revisions but will not operate properly Before using the E1406A you should check your driver revision and if necessary load a new driver This procedure shows a way to download SCPI drivers to the E1406A SCPI Instrument Drivers and the VXI Installation Consultant VIC are on
99. mmand Reference Chapter 3 ROUTe FUNCtion Chapter 3 Parameters Comments ROUTe FUNCtion lt card_number gt lt function gt selects the operating mode of the multiplexer channels All channels on the card specified by card number operate in the specified mode ROUTe is NOT optional when ROUT FUNC is used with a scanning multimeter configuration Name Type Range of Values Default card number numeric 01 to 99 N A function discrete WIRE 11 WIRE 2 WIRE 2 WIRE 2 64 WIRE 3 WIRE 4 ROUTe is Not Always Optional If used with a scanning multimeter configuration ROUTe FUNCtion must be used Command Not Always Used This command is not required if the status register switch is configured to the desired mode Using the FUNCtion Command When using the FUNCtion command to reconfigure the multiplexer to a different operating mode than the status register switch is set to the command must be sent AFTER the card is powered up One Wire Mode WIRE1 Switches either the HI or LO terminal of a channel in banks 0 through 7 to the one wire HI COM or one wire LO COM terminal When closing a channel in one wire mode the HI or LO line must be selected using channel list Only one of the 128 one wire channels can be switched at a time Two Wire Mode WIRE2 Switches both the HI and LO terminals of a channel in banks 0 through 3 or banks 4 through 7 to that bank s HI COM and LO COM terminals T
100. mmarizes query commands you can use to determine the configuration or state of the multiplexer All commands put the data into the output buffer where you can retrieve it to your computer Table 2 2 Multiplexer Query Commands Command Description Command Description ARM COUN Number of Scanning Cycles SCAN PORT Scanning Port Selected CLOS Channel Closed STAT OPER ENAB Status Operation Enable FUNC Operating Mode Selected Status Operation Event OPEN Channel Open SYST CDES number Module Description INIT CONT Scanning State SYST CTYP number Module Type OUTP ECLTrg 7 ECL Trigger Output State SYST ERR System Error OUTP EXT External Trigger Output State TRIG SLOP Trigger Slope OUTP TTLTrg TTL Trigger Output State TRIG SOUR Trigger Source SCAN MODE Scanning Mode Selected Table 2 3 lists the parameters and default values for the functions described in this chapter When the multiplexer is switched on or RST reset all bank channels are set to open and the current channel list for scanning is invalidated Table 2 3 Multiplexer Reset Conditions Parameter Default Description ARM COUNt 1 Number of scanning cycles is one INITiate CONTinuous OFF Number of scanning cycles is set by ARM COUNt OUTPut ECLTrg STATe OFF Trigger output from ECLT sources is disabled OUTPut EXTernal STATe OFF Trigger output from external sourc
101. ned depends on the configuration Leading zeroes can be ignored for the card number Switchbox Configuration In a single module switchbox configuration the card number is always 01 In a multiple module switchbox configuration multiplexer modules are set to successive logical addresses The multiplexer module with the lowest logical address is always card number 01 The card number with the next successive logical address is 02 etc See Figure 1 14 for card numbers and logical addresses of a typical multiple module switchbox configuration Multiple Module Switchbox Card Numbers v ES ES Card Number 01 GEN BEI GE 17 59 Multiplexer Module 99 E Logical Address 112 Secondary Address 14 Command gt CN Module MN 11 TON LEES Multiplexer Module Logical Address 113 2 59 Multiplexer Module i Logical Address 114 x order is not required but is recommended Figure 1 14 Card Numbers in a Multiple Module Switchbox Scanning Multimeter Configuration In a multiple module scanning multimeter configuration modules are assigned successive logical addresses beginning with the multimeter The multimeter module is always card number 00 the multiplexer module with the next lowest logical address is always card
102. nk number 0 7 and c channel number 0 7 Name Type Range of Values Default channel list numeric ss 00 00 to 550177 1 wire 5500 to ss77 2 wire 5500 to ss037 3 wire 5500 to ss037 4 wire One Wire Mode WIRE1 When opening a channel in one wire mode the or LO line must be selected using channel list 01 selects and 00 selects LO If one wire mode is selected and a four digit channel number is used the LO line is selected Two Wire Mode WIRE2 Switches both the HI and LO terminals of a channel in banks 0 through 3 or banks 4 through 7 to that bank s HI COM and LO COM terminals Two Wire Mode WIRE2X64 Switches the HI and LO terminals of a channel in banks 0 through 7 to that bank s HI COM and LO COM terminals A maximum of 64 two wire channels can be switched This mode is available via E1406A Switchbox Rev A06 00 or later Prior to this revision closing control relay 0995 in two wire mode will change the card configuration to a single 64 channel two wire multiplexer Three Four Wire Modes WIRE3 WIRE4 When opening a channel in three wire or four wire modes only the lower bank 0 3 is specified The upper bank pair 4 7 will automatically open the specified channel If an attempt is made to open the upper bank pair 4 7 channels an error will be generated Opening Channels To open a single channel use ROUT OPEN ssbc or ssOhbc multiple channels use ROUT OPEN Qssbo
103. nnects COM to LO for voltage measurements with the MEASure or SCPI commands in a scanning multimeter Chapter 2 Using the Relay Multiplexer 39 To connect the and LO terminals of bank 0 channels 0 7 to bank 0 COM terminals execute FUNC 1 WIRE2 Configures the multiplexer card 1 for two wire operation CLOS 100 107 Connects the and LO terminals of bank 0 channels 0 and 7 to bank 0 COM terminals NOTE Status Register switch is set to the two wire operating mode the FUNC 1 WIRE2 command is not required The WIRE2X64 command can be used rather than closing control relay 0995 to configure the card to a single 64 channel multiplexer Available only with E1406A Switchbox rev A 06 00 or later Dente genteel oe Figure 2 2 Example Switching Channels Two Wire Example Switching This example illustrates three wire mode operation The HI and LO Channels Three Wire terminals of bank 0 channel 0 are closed connecting them to the bank 0 COM terminals The LO terminal of bank 4 channel 0 is closed connecting it to the bank 4 LO COM terminal Figure 2 3 shows how the multiplexer is configured For three wire operation the control relays are set as follows 0990 0991 are set open when channel list is executed 0992 0993 0996 will close when SCAN PORT ABUS is selected during a scan 0992 and 0993 are opened when n
104. nnels banks 0 3 to analog bus 0993 Connects upper 32 channels banks 4 7 to analog bus 0994 Connects lower and upper analog buses together 0995 Connects lower and upper common buses together 64 channel two wire operation 0996 Connects analog bus Guard to the LO line on the upper 32 channels banks 4 to 7 The E1460A uses the channel and control relays on the switch card to perform four basic operating modes one wire two wire three wire or four wire as shown Connections to the analog bus for multimeter connection are provided on both the relay switch card and terminal module Switches either the HI or LO terminal of a channel in banks 0 through 7 to the one wire HI COM terminal One wire LO COM is switched to the one wire LO REF terminal Only one channel can be switched closed at a time A maximum of 128 one wire channels can be switched SCAN goes through all channel relay lows Then control relay 0990 switches and SCAN goes through all channel relay highs Switches both the HI and LO terminals of a channel in banks 0 through 7 to the HI COM and LO COM terminals A maximum of 64 two wire channels can be switched Switches both the HI and LO terminals of a channel in banks 0 through 3 to the HI COM and LO COM terminals This mode also switches the LO terminal of the pair channel in banks 4 through 7 to the LO COM terminal In addition the low terminal of the pair channel in banks 4 through 7 can be
105. nt is configured If you are updating an already installed driver the new driver must be downloaded using the VIC Driver Download utility Instructions for using VIC and its Driver Download utility are contained in VIC s on line help other operating systems interfaces See the Installing SCPI Device Drivers Installation Note shipped with the downloadable drivers To address specific channels within a multiplexer module in either switchbox or scanning multimeter configuration you must end the appropriate SCPI command string to the switchbox or scanning multimeter for example CLOSe OPEN etc and specify the specific channel address You can send SCPI commands in either short or long form A long form example is CLOSe 123 The same command shown without the lower case letters is the short form The command then becomes CLOS 123 Some commands are shown with brackets These are implied commands that you do not need to execute The brackets are not part of the command and are not sent to the instrument For example the ROUTe command is an implied command and is shown here as ROUTe CLOS 9123 Thus to execute these commands you can just enter CLOS 123 See Chapter 3 for more information about SCPI commands and how to send them Chapter 1 Multiplexer Card multiplexer card number identifies the module within switchbox or Numbers scanning multimeter configuration The card number assig
106. nterrupt the computer when the scan complete bit is set after the scanning cycle completes This allows the controller to do other operations while the scanning cycle is in progress This example monitors bit 7 in the Status Byte Register to determine when Complete Bit the scanning cycle completes The example uses GPIB select code 7 primary address 09 and secondary address 14 for the multiplexer 10 OUTPUT 70914 CLS Clear all switchbox status structure 20 OUTPUT 70914 STAT OPER ENAB 256 Enable scan complete bit to set bit 7 in Status Byte Register 30 OUTPUT 70914 SRE 128 Enable bit 7 of Status Byte Register to assert RQS 40 OUTPUT 70914 TRIG SOUR EXT ISet to external trigger mode 50 OUTPUT 70914 SCAN 100 102 Defines channel list to scan bank 0 channels 0 through 2 60 OUTPUT 70914 INIT Start scanning cycle 70 WHILE NOT BIT SPOLL 70914 7 Waiting for scan complete 80 PRINT DO OTHER OPERATION HERE Enter program lines for computer to do other operations 90 END WHILE 100 PRINT INTERRUPT GENERATED Program goes to this line after interrupt is generated by a completed scanning cycle 110 END Terminate program Using the Relay Multiplexer 51 Using the Analog Bus Example Connecting the Analog Bus 52 Using the Relay Multiplexer The multiplexer can be configured to perform voltage two wire ohm or four wire ohm measurements using the analog bus These measurements can be performed by switching or s
107. number 01 the next successive logical address is card number 02 etc See Figure 1 15 for card numbers and logical addresses of a typical multiple module scanning multimeter configuration Chapter 1 Getting Started 31 Command Multiple Module Scanning Multimeter Card Numbers fe BS Card Number 00 Uy SU Eb HP E1411B Multimeter Logical Address 24 Secondary Address 03 COCHE OCE CE T7 CO QN xf Multiplexer Module 1 Logical Address 25 Multiplexer Module 2 Logical Address 26 order is not required but is recommended Figure 1 15 Card Numbers in a Multiple module Scanning Multimeter Multiplexer Channel Addresses 32 Getting Started For the E1460A the channel address channel list has the form ssbc for two wire three wire and four wire operating modes amp ssOhbo for one wire operating mode ss099c for control relays all operating modes where card number 01 99 Oh LO or HI terminal 0 1 b lt bank number 0 7 c number 0 7 for switching relays or 0 6 for control relays Channel addresses can be specified in the following forms The leading zero in the card number can be ignored One wire mode only QssOhbo for a single channel QssOhbc ssOhbo for multiple chann
108. nuous ON to set continuous scanning Control Relay Switching Control relays 0990 to 0996 are not affected by opening and closing of the channel relays banks 0 to 7 They are switched when configuring a mode See Channel Switching in this chapter and during scanning when SCAN PORT ABUS is selected see the ROUTe SCAN PORT command for more information Two Wire Ohms Measurements When making two wire ohms scanning measurements using multimeters with SOURCE SENSE leads use SCAN MODE RES When making two wire ohms scanning measurements using multimeters with HI LO leads use SCAN MODE VOLT See the ROUTe SCAN MODE command for more information Some example programs follow that show how to scan channels using the E1406A Command Module and or external multimeters The examples are Example Scanning Channels Using 1406 Command Module Example Scanning Channels Using E1412A Multimeter Example Scanning Channels Using 3457A Multimeter Example Scanning Multimeter DCV Measurements Example Scanning Multimeter Resistance Measurements This example uses the 1406 Command Module TTL Trigger Bus lines to synchronize E1460A multiplexer bank 0 channel 0 to bank 7 channel 7 closures to an E1411B System Multimeter For the example a two wire ohms measurement is performed For measurement synchronization E1406A TTL Trigger Bus line 0 is used by the multiplexer to trigger the multimeter to perform a measurement The E140
109. o the Command Register the flowchart assumes the multimeter is already configured 110 Register Based Programming Appendix B Example Reading ID Device Type and Status Registers The multimeter s Status bit 5 is monitored to determine when the analog to digital A D conversion is in progress and thus when to advance the channel This enables each channel to be measured before the readings are read from the buffer The multimeter s Autozero is often turned on to detect when bit 5 is active The channel can also be advanced by monitoring bit 4 Data Ready However before measuring the next channel readings from the previous channel must be read from the buffer in order to clear the bit This C programming example reads the Module ID Device Type and Status Registers from the module include lt stdio h gt include lt chpib h gt include lt cfunc h gt define LOG_ADDR 112L define BASE_ADDR long 0 1 000 64 LOG_ADDR main int reg_addr float send_data 3 read char state 2 13 10 send data 1 16 send data 2 0 send data 0 BASE ADDR 0 IOEOI 7L 0 IOEOL 7L 0 IOOUTPUTS 70900L DIAG PEEK 11 IOEOI 7L 1 IOEOL 7L state 2 IOOUTPUTA 70900L send data 2 IOENTER 70900L amp read printf nIdentification Register X int read send data 0 BASE ADDR 2 IOEOI 7L 0 IOEOL 7L 0 IOOUTPUTS 70900L DIAG PEEK 11 IOEOI 7L 1
110. of Values Default n numeric 0 or 7 N A mode boolean 0111OFF OFF 10 Enabling TTL Trigger Bus When enabled a negative going pulse is output from the selected TTL Trigger bus line 0 to 7 after each channel in the switchbox is closed during a scan If disabled a pulse is not output TTL Trigger Bus Line Shared by Switchboxes Only one switchbox configuration can use the selected TTL Trigger at a time When enabled the selected TTL Trigger bus line 0 to 7 is pulsed by the switchbox each time a scanned channel is closed To disable the output for a specific switchbox send the OUTPut TTLTrgn OFF or 0 command for that switchbox One Output Selected at a Time Only one output ECL 0 or 1 TTLTrgO 1 2 3 4 5 6 gt or 7 or EXTernal can be enabled at one time Enabling a different output source will automatically disable the active output For example if TTLTrg1 is the active output and TTLTrg4 is enabled TTLTrg1 will become disabled and TTLTrg4 will be the active output Related Commands ROUTe SCAN TRIGger SOURCe OUTPut TTLTrgn STATe RST Condition OUTPut TTLTrgn STATe OFF disabled Enabling TTL Trigger Bus Line 7 OUTP TTLT7 STAT 1 Enable TTL Trigger bus line 7 to output pulse after each scanned channel is closed OUTPut TTLTrgn STATe Chapter 3 Example OUTPut TTL Trgn STATe queries the present state of the specified TTL Trigger bus line The command returns 1
111. orresponding error message in the error queue The error message can be up to 255 characters long Clearing the Error Queue An error number message is removed from the queue each time the SYSTem ERRor command is sent The errors cleared first in first out When the queue is empty each following SYSTem ERRor command returns 0 No error To clear all error numbers messages in the queue execute the CLS command Maximum Error Numbers Messages in the Error Queue The queue holds a maximum of 30 error numbers messages for each switchbox If the queue overflows the last error number message in the queue is replaced by 350 many errors The least recent error numbers messages remain in the queue and the most recent are discarded RST Condition RST does not clear the error queue 90 Relay Multiplexer Command Reference Chapter 3 TRIGger The TRIGger command subsystem controls the triggering operation of multiplexer modules in a switchbox Subsystem Syntax TRIGger MMediate SLOPe slope SLOPe SOURCe source 5 TRIGger IMMediate TRIGger IMMediate causes a trigger event to occur when the defined trigger source is TRIGger SOURce BUS or TRIGger SOURce HOLD Comments Executing the TRIGger IMMediate Command First the measurement modes must be selected using the ROUTe FUNCtion and ROUTe SCAN MODE commands Then ROUTe SCAN PORT is selected followed by the ROUTe SCAN
112. ot SCAN PORT ABUS see Scanning Channels 0994 0995 are set open when SCAN channel list is executed 40 Using the Relay Multiplexer Chapter 2 To connect the and LO terminals of bank 0 channel 0 and the LO terminal of bank 4 channel 0 to their COM terminals execute FUNC 1 WIRE3 Configures the multiplexer card 01 for three wire operation CLOS 9100 Connects the and LO terminals of bank 0 channel 0 to the bank 0 COM terminals and the LO terminal of bank 4 channel 0 to the bank 4 LO COM terminal If the Status Register switch is set to three wire operating mode the FUNC 1 WIRE3 command is not required In three wire mode banks are paired 0 4 1 5 2 6 and 3 7 Do not connect user wiring to the terminal in the upper bank pair 4 7 as this terminal is switched during three wire operation Upper bank pair 4 7 channels cannot be switched or queried while in this mode SWITCH CARD TERMINAL MODULE 1 ANALOG BUS GUARD NO CONNECTION 3 IN NO CONNECTION Figure 2 3 Example Three Wire Mode Channel Switching Example Switching Channels Four Wire This example illustrates four wire mode operation The HI and LO terminals of bank 0 channel 0 are closed connecting them to the bank 0 COM terminals At the same time the HI and LO terminals of bank 4 channel 0 are closed connecting them to the bank 4 COM terminals Figure
113. ough 7 of a single module switchbox The trigger source to advance the scan is the input to the Trig In on an E1406A Command Module When INIT is executed the scan is started and bank 0 channel 0 is closed Then each trigger received at the Trig In port advances the scan to the next channel For the example ROUTe SCAN MODE and ROUTe SCAN PORT default values of NONE are used Relay Multiplexer Command Reference 93 TRIG SOUR EXT Select external triggering SCAN 100 107 Scan channels 0 to 7 in bank 0 INIT Begin scan close bank 0 channel 0 trigger externally Advance scan to next channel Example Scanning Using Bus Triggers This example uses bus triggering TRIG SOUR BUS to scan bank 0 channels 0 through 7 of a single module switchbox The trigger source to advance the scan is the command as set with TRIGger SOURce BUS When INIT is executed the scan is started and bank 0 channel 0 is closed Then each TRG command advances the scan to the next channel For the example ROUTe SCAN MODE and ROUTe SCAN PORT default values of NONE are used TRIG SOUR BUS Trigger command will be via backplane bus interface TRG command generates trigger SCAN 100 107 Scan channels 0 to 7 in bank 0 INIT Begin scan close bank 0 channel 0 loop statement Loop to scan all channels TRG Advance scan using bus triggering increment loop Increment loop count TRIGger SOURce TRIGger SOURce returns the current trigger s
114. ource for the switchbox Command retums BUS ECLT EXT HOLD IMM or TTLT for sources BUS ECL Trgn EXTernal HOLD IMMediate or TTLTrgn respectively Example Querying the Trigger Source This example sets external triggering and queries the trigger source Since external triggering is set TRIG SOUR returns EXT TRIG SOUR EXT Set external trigger source TRIG SOUR Query trigger source 94 Relay Multiplexer Command Reference Chapter 3 IEEE 488 2 Common Commands Reference The following table lists the IEEE 488 2 Common Commands that apply to the E1460A Relay Multiplexer module For more information on Common Commands see the applicable command module user s manual or the ANSI IEEE Standard 488 2 1987 Command Title Description CLS Clear Status Register Clears all Status Registers the Request for OPC flag and all Queues except output queue ESE mask Event Status Enable Sets the bits in the Standard Event Status Enable Register ESE Event Status Enable Query Queries the current contents in the Standard Event Status Enable Register ESR Event Status Register Query Queries and clears current contents in the Standard Event Status Register IDN Identification Query Returns Identification String of the switchbox OPC Operation Complete Sets the Request for OPC flag when all pending operations have completed Also sets OPC bit in the Standard Event Status Register
115. ple Enabling Continuous Scanning This example enables continuous scanning of bank 3 channels 0 through 7 of a switchbox Since TRIGger SOURce IMMediate default is set the example uses an interface clear command CLEAR 7 to stop the scan INIT CONT ON Enable continuous scanning SCAN 130 137 Scan channels 0 to 7 in bank 3 INIT Start scan close channel 0 CLEAR 7 Stop scan cycle CONTinuous INITiate CONTinuous queries scanning state With continuous scanning enabled the command returns 1 ON With continuous scanning disabled the command returns 0 OFF Example Query Continuous Scanning State This example enables continuous scanning of a switchbox and queries the state Since continuous scanning is enabled INIT CONT returns 1 m INIT CONT ON lEnable continuous scanning INIT CONT Query continuous scanning state INITiate IMMediate INITiate IMMediate starts the scanning process and closes the first channel in the channel list Successive triggers from the source specified by the TRIGger SOURce command advance the scan through the channel list Comments Starting the Scanning Cycle The INITiate IMMediate command starts scanning by closing the first channel in the channel list Each trigger received advances the scan to the next channel in the channel list An invalid channel list definition causes an error see ROUTe SCAN Stopping Scanning Cycles See the ABORt command 66 Relay Mul
116. rol relays 0992 0993 close and 0990 0991 0994 0995 open FUNC 1 WIRE4 Set mode to four wire TRIG SOUR EXT Select external trigger source SCAN MODE FRES Select the four wire ohms mode SCAN PORT ABUS Select the analog bus port SCAN 130 137 Scan channels 0 7 in bank 3 paired with channels 0 7 bank 7 INIT Start scanning cycle ROUTe SCAN PORT ROUTe SCAN PORT returns the current state of the analog bus port The command returns NONE if the analog bus connection control relays are disabled or ABUS if the control relays are enabled Example Query the Scan Port This example selects the analog bus port and then queries the state Because the analog bus port is selected the query command returns ABUS SCAN PORT ABUS Select the analog bus port SCAN PORT Query the port selection Chapter 3 Relay Multiplexer Command Reference 83 STATus Subsystem Syntax The STATus subsystem reports the bit values of the Operation Status Register It also allows you to unmask the bits you want reported from the Standard Event Register and to read the summary bits from the Status Byte Register STATus OPERation CONDiition ENABIe number ENABIe EVENt PRESet The STATus system contains four registers two of which are under IEEE 488 2 control the Standard Event Status Register 5 and the Status Byte Register STB The operational status bit OPR service request bit RQS standard event summ
117. rror communication problem with card Returns cc03 for bad ID information ID Register on Returns cc10 if an interrupt was expected but not received Returns cc11 if the busy bit was not held 9 to 17 msec WAI Wait to Continue Halts execution of commands and queries until No Operation Pending message is true Chapter 3 Relay Multiplexer Command Reference 95 SCPI Commands Quick Reference The following table summarizes SCPI commands for the E1460A Relay Multiplexer module Command Description ABORt Abort a scan in progress ARM COUNt number MIN MAX Multiple scans per INIT command COUNT MIN MAX Query number of scans INITiate CONTinuous ON I OFF I 1 0 Enables Disables continuous scanning CONTinuous Query continuous scan state IMMediate Starts a scanning cycle OUTPut ECLTrgn STATe ON OFF 1 0 Enables Disables ECL Trigger bus line pulse ECLTrgn STATe Query ECL Trigger bus line state EXTernal STATe ON I OFF 110 Enables Disables Trig Out pulse EXTernal STATe Query port enable state TTLTrgn STATeJON I OFFI 110 Enables Disables TTL Trigger bus line pulse 1 5 Query TTL Trigger bus line state ROUTe CLOSe channel list Close channel s CLOSe channel list Query channel s FUNCtion card number lt function gt Set operating mode FUNCtion card number Query operating mode OPEN channel ist Open channel s OPEN ch
118. s been closed can be disabled Bit 6 of this register is used to inform the user of the interrupt status For example if the Status Register base 0446 returns D3BF the multiplexer module is not busy bit 7 set the interrupt is enabled bit 6 0 and the configuration is four wire bits 10 13 set In addition if a terminal module card is connected to the relay switch card the present configuration of the terminal module card s status bit can be read Bits 10 11 12 and 13 are used to determine the configuration of the terminal module card Register Based Programming 103 ID and Device ID Register Reading this register returns FFFF that shows that Registers Hewlett Packard as the manufacturer and that the module is an A16 register based device base 0046 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Write Undefined Read Manufacturer ID returns FFFF4g in Hewlett Packard A16 only register based card Device Type Register Reading this register returns 010046 if the device is the E1460A 64 Channel Multiplexer module base 0216 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Write Undefined Read 010046 Relay Control Registers Writes to the Relay Control Registers base 2046 to 3046 which enables you to switch the desired channel banks 0 7 to COM or switch the desired Channel Relay
119. se 0446 The following table defines the Status Control Register bits base 0446 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Write Undefined D Undefined Read Undefined S4 S3 S2 S1 Undefined B D Undefined D Disable Interrupt by writing 1 in bit 6 B Status busy is O in bit 7 D Status interrupt disable is 1 in bit 6 1 4 Status Configuration Status bits as follows 1 wire mode bit 13 0 bit 12 0 bit 11 0 bit 10 1 2 wire dual 32 mode bit 13 to 10 all 05 or all 1 s 2 wire 64 mode bit 13 0 bit 12 0 bit 11 1 bit 10 0 3 wire mode bit 13 0 bit 12 0 bit 11 1 bit 10 1 4 wire mode bit 13 0 bit 12 1 bit 11 0 bit 10 0 Writing to the Status Control Register Reading the Status Control Register Appendix B Writes to the Status Control Register base 0446 enable you to disable enable the interrupt generated when channels are closed To disable the interrupt generated when channels are closed write a 1 to bit 6 of the Status Control Register base 0416 Typically interrupts are only disabled to peek poke a module See the operating manual of your command module before disabling the interrupt Each relay requires about 12 msec execution time during which time the multiplexers are busy Bit 7 of this register is used to inform the user of a busy condition The interrupt generated after a channel ha
120. should not be used under normal operating conditions Changing the priority level jumper is not recommended Do not change unless specifically instructed to do so di 5 Using 4 Jumper Interrupt g sF XQ Priority por Location mmm 1 d d B B B B LSB MSB Using 2 Pin Jumper CO LO sr XK 4 IRQ Uu B B B B B B B E Figure 1 4 Setting the Interrupt Priority Configuring the The relay switch card has thirteen factory installed wire jumpers see H Figures 1 1 and 1 5 that connect COM lines of banks together to form Switch Card Wire dual 1x32 channel configurations These wire jumpers can be changed to Jumpers reconfigure the switch card to various 8 channel or 16 channel configurations NOTE itis only necessary to change the wire jumpers when reconfiguring the switch card for groups of eight or 16 channels from 32 DO NOT CHANGE the wire jumper positions unless instructed to do so in the applicable operating procedures 18 Getting Started Chapter 1 Wire Jumper Functions With the exception of JM1 wire jumpers are changed in pairs Functions of the wire jumpers are JM1 Used during cable test see Chapter 2 JM2 JM3 Used to connect the COM lines of bank pairs 0 1 and 2 3 JM4 JM5 Used to connect the COM lines of bank pairs 4 5 and 6 7
121. ssbc or QssOhbc ssOhbc sequential channels use ROUT OPEN Qssbc ssbc or ssOhbc ssOhbc groups of sequential channels use ROUT OPEN ssbc ssbc ssbc ssbc or ssOhbc ssOhbc ssOhbc ssOhbc or any combination of the above Relay Multiplexer Command Reference 77 NOTE Channel numbers can be in the channel list in any random order Hovever opening order for multiple channels with a single command is not guaranteed Opening the Control Relays The control relays 0990 to 0996 can be opened to perform special functions for example isolating channels from the analog bus Channels must be changed after the multiplexer has been configured using the ROUTe FUNCtion command Open 0990 to select the HI terminal for one wire switching 0991 to connect Cable Test terminal to the one wire LO COM terminal 0992 to disconnect lower 32 channels banks 0 to 3 from the analog bus 0993 to disconnect upper 32 channels banks 4 to 7 from the analog bus 0994 to disconnect lower and upper analog buses 0995 to disconnect lower and upper common buses dual 32 channel two wire operation 0996 to disconnect analog bus Guard from the LO line on the upper 32 channels banks 4 to 7 OPC Command Using the DPC command after the OPEN command in your programs will ensure that the channel OPEN command has executed prior to performing the next function measure read etc This programming practice is hi
122. surements Control relay 0994 is closed when SCAN PORT ABUS is selected When selected the multimeter SENSE SOURCE leads are used to make the measurement When using the HI LO leads on a multimeter to make the measurement use the VOLT mode FRES Mode When selected channel list is setup for four wire ohms measurements When using four wire ohms measurement mode only the lower bank 0 3 is specified with the ROUTe SCAN channel list command The upper bank pair 4 7 will automatically select the specified channel Selecting an upper bank 4 7 channel causes an error RST Condition ROUTe SCAN MODE NONE Example Selecting Four Wire Ohms Measurements This example selects four wire ohms measurement mode FRES on card 1 of a single module switchbox FUNC 1 WIRE4 Set mode to four wire TRIG SOUR EXT Selects external trigger source SCAN MODE FRES Selects four wire W scan mode SCAN 130 137 Scan channels 0 to 7 in bank 3 paired with channels 0 to 7 in bank 7 INIT Starts scanning cycle Chapter 3 Relay Multiplexer Command Reference 81 ROUTe SCAN MODE Comments Example ROUTe SCAN PORT Parameters Comments ROUTe SCAN MODE returns the current state of the scan mode Values Returned The command returns NONE VOLT RES or FRES if the scan mode is in the none volts two wire ohms or four wire ohms measurement mode respectively Query the Scanning Mode This example selects the four wire ohms
123. t Standard Event Register ESR ESE unmask ESE Status Byte Register STB SPOLL Automatically Set at Power On Power On Conditions User Request unmask Command Error SRE Execution Error Device Dependent Error Query Error Request Control Set by OPC Operation Complete Related Commands are OPC and WAI L__ esp System L RQS 5 4 Controller OPR 7 4 Interface Bus Status SRQ Line Automatically Set by Parser 111111 215195 m lt Other Instrument Summary Bit Operation Status Register STATus OPERation CONDition Other Instrument STATus OPERation EVENt r STATus OPERation ENABle lt 1 gt lt 2 gt lt 4 gt unmask examples 8 lt 16 gt lt 32 gt bit weight 64 128 OR 256 o Operation Complete 7 lt 128 gt ESB lt 512 gt lt 1024 gt ESE 61 unmasks standard event register bits 0 e ojo Scan Complete 2 3 4 and 5 128 only unmasks bit 7 2048 4096 SRE 128 unmasks the OPR bit operation in 8192 the status byte register This is effective 16384 only ifthe STA
124. t 200 ENTER 70903 Readings Enters measurement results 210 PRINT Readings Displays measurement result 220 END Terminates program Example Scanning Channels Using E1412A Multimeter 46 Using the Relay Multiplexer This example program uses the E1406A Command Module for one wire scanning of the E1460A using the two wire ohms function of the E1412A multimeter The TTL trigger bus lines perform E1412A multimeter triggering and E1460A multiplexer channel advance This program uses the stand alone switchbox mode For this example the following resistors are connected to the channels indicated and to the one wire COM terminal The remaining channels are open 1 on channel 00 HI 1 5 kQ on channel 00 LO 1 2 kQ on channel 01 HI 1 8 kQ on channel 01 LO A typical result returns 0 No error for the response to the SYST ERR command The four channels with resistors connected return the nominal value of the resistor such as 1003 129 for channel 00 HI or 1489 102 for channel 00 LO All other channels return 9 9E 37 to indicate an open channel Chapter 2 Example Scanning Channels Using 3457A Chapter 2 Multimeter 10 ASSIGN Dvm TO 70903 20 ASSIGN Mux TO 70914 30 DIM A 80 Rdgs 1 64 40 CLEAR Dvm 50 CLEAR Mux 60 OUTPUT Dvm RST CLS 70 OUTPUT Mux RST CLS 80 OUTPUT Dvm FUNC RES 90 OUTPUT Dvm TRIG SOUR TTLTO 100 OUTPUT Dvm TRIG COUN 64 110 OUTPUT Dvm OUTP TTLT1 STAT ON 120 OUTPUT
125. t lower level command such as ROUTe SCAN MODE Colons separate the root command from the second level command ROUTe SCAN and the second level from the third level SCAN MODE Abbreviated Commands command syntax shows most commands as a mixture of upper and lowercase letters The uppercase letters indicate the abbreviated spelling for the command For shorter program lines send the abbreviated form For better program readability you may send the entire command The instrument will accept either the abbreviated form or the entire command For example if the command syntax shows DIAGnostic DIAG and DIAGNOSTIC are both acceptable forms Other forms of DIAGnostic such as DIAGN or DIAGNOS will generate an error You may use upper or lowercase letters Therefore DIAGNOSTIC diagnostic and DiAgNoStlc are all acceptable Implied Commands Implied commands appear in square brackets in the command syntax The brackets are not part of the command and are not sent to the instrument Suppose you send a second level command but do not send the preceding implied command In this case the instrument assumes you intended to use the implied command and it responds as if you had sent it Examine the portion of the ROUTe subsystem shown below ROUTe CLOSe channel list The root command ROUTe is an implied command To make a query about a channel s present status you can send either of the following command statements
126. ter Using the Relay Multiplexer 57 Synchronizing the rhis section discusses synchronizing the multiplexer module to other Multiplexer instruments when making measurements Example Synchronizing This example shows one way to synchronize instruments by switching a Instruments _ signal to be measured by a multimeter This program verifies that the switching is complete before the multimeter begins a measurement The example uses GPIB select code 7 primary address 09 and secondary address 03 for the multimeter and GPIB select code 7 primary address 09 and secondary address 14 for the multiplexer 10 OUTPUT 70914 CLOS 9101 OPC Close bank 1 channel 1 and request confirmation that the channel is closed 20 ENTER 70914 Opc value 30 OUTPUT 70914 CLOS 101 Read confirmation 40 ENTER 70914 A 50 OUTPUT 70903 MEAS VOLT DC Channel is confirmed closed so the measurement can be made 60 ENTER 70903 Meas value 70 PRINT Meas value 80 END 58 Using the Relay Multiplexer Chapter 2 Chapter 3 Relay Multiplexer Command Reference About This Chapter Command Types Common Commands Format SCPI Commands Chapter 3 Format This chapter describes Standard Commands for Programmable Instruments SCPI and IEEE 488 2 Common Commands for the E1460A Relay Multiplexer module See the appropriate command module user s manual for additional information on SCPI and Common Commands This chapter contains the following sec
127. tions Command 59 SCPI Command Reference 61 e IEEE 488 2 Common Commands Quick Reference 95 SCPI Commands Quick Reference 96 Commands are separated into two types IEEE 488 2 Common commands and SCPI commands The IEEE 488 2 standard defines the Common commands that perform functions like reset self test status byte query etc Common commands are four characters in length always begin with an asterisk and may include one or more parameters The command keyword is separated from the first parameter by a space character Some examples of Common commands are RST ESE lt mask gt STB SCPI commands perform functions like closing switches making measurements and querying instrument states or retrieving data A subsystem command structure is a hierarchical structure that usually consists of a top level or root command one or more lower level commands and their parameters The following example shows part of a typical subsystem ROUTe CLOSe channel list SCAN channel list MODE ROUTe is the optional root command CLOSe and SCAN are second level commands with parameters and MODE is a third level command ROUTe is an implied command and is therefore optional Relay Multiplexer Command Reference 59 Command Separator always separates one command from the nex
128. tiplexer Command Reference Chapter 3 Example Enabling Single Scan This example enables a single scan of channels 0 through 7 in bank 5 of a single module switchbox The trigger source to advance the scan is immediate internal triggering set with TRIGger SOURce IMMediate default SCAN 150 157 Scan channels 0 to 7 in bank 5 INIT Begin scan close channel 0 use immediate triggering Chapter 3 Relay Multiplexer Command Reference 67 OUTPut Subsystem Syntax The OUTPut command subsystem selects the source of the output trigger generated when a channel is closed during a scan The selected output can be enabled disabled and queried The three available outputs are the ECLTrg TTLTrg trigger buses as well as the command module s E1406A front panel Trig Out port OUTPut lt ECLTrgO ECLTrg1 STATe mode STATe EXTernal STATe mode STATe TTLTrgO through TTLTrg7 STATe mode STATe OUTPut ECLTrgn STATe Parameters Comments OUTPut ECLTrgn STATe mode selects and enables which ECL Trigger bus line 0 or 1 will output a trigger when a channel is closed during a scan This is also used to disable a selected ECL Trigger bus line specifies the ECL Trigger bus line 0 or 1 and mode enables ON or 1 or disables OFF or 0 the specified ECLTrg bus line Name Type Range of Values Default n numeric 0 or 1
129. umber Addressing a module card in a switchbox that is not part of the switchbox 2001 Invalid Channel Number Attempting to address a channel of a module in a switchbox that is not supported by the module for example 2006 Command Not Supported On Sending a command to a module card in a switchbox that is unsupported This Card by the module 2008 Scan List Not Initialized Executing a scan without the INIT command 2012 Invalid Channel Range Invalid channel s specified in SCAN channel list command Attempting to begin scanning when no valid channel list is defined 2600 Function Not Supported This Sending a command to a module card in a switchbox that is not Card supported by the module or switchbox 2601 Channel List Required Sending a command requiring a channel list without the channel list Appendix C Relay Multiplexer Error Messages 115 Notes 116 Relay Multiplexer Error Messages Appendix C A16 address space inside command module 101 outside command module 100 ABORt subsystem 62 addressing the multiplexer 30 analog bus connecting 22 using 52 ARM subsystem 63 ARM COUNt 63 ARM COUNt 64 attaching terminal modules 28 B base address registers 99 cautions 15 channel addresses 32 channel relay switches 12 checking SCPI drivers 29 command reference 61 command types 59 common commands CLS 95 ESE 95 95 ESR 95 IDN 95 OPC 95 OPC 95 RCL 95
130. uous scanning modes are available Scanning Channels Sequence The TRIGger SOURce command specifies the source to advance the scan The OUTPut command can be used to enable the E1406A Command Module Trig Out port TTL Trigger bus lines 0 7 or ECL Trigger bus lines 0 1 Figure 2 5 illustrates scanning ARM COUN number TRIG SOUR BUS HOLD EXT MM TTLT ECLT OUTP ECLT EXT TTLT OUTP 1 OJONJOFF INIT CONT 1 SCAN MODE NONE VOLT RES FRES SCAN PORT NONE ABUS SCAN lt channel_list gt 2 Figure 2 5 Scanning Channels Sequence Using the Relay Multiplexer 43 Scanning Channels Examples Example Scanning Channels Using E1406A Command Module 44 Using the Relay Multiplexer Scanning Requirements of a Switchbox With a Command Module To scan modules in a switchbox you must nnow the card numbers of all the modules to be scanned sequentially address the modules for example logical address 112 113 114 etc and set the lowest addressed module to a logical address that is a multiple of 8 Channel List Can Be Extended Across Boundaries For multiple module switchbox instruments the channels to be scanned can extend across Switch modules For example for a two module switchbox instrument SCAN 100 277 will scan all channels of both multiplexer modules Setting Multiple Continuous Scans Use ARM COUNt number to set from 1 to 32767 scans Use INITiate CONTi
131. uts connecting 25 V VXI Installation Consultant VIC 30 Index 119 WARNINGS 8 warnings 15 warranty statement 7 wire jumper functions 19 wire jumpers setting 18 wiring terminal modules 26 WRITE registers description 102 120 Index Notes Index 121 122 Index
132. v_ptr gt gt statcntl_reg amp BUSY 0 Close control relays 0992 0993 amp 0995 for 2X64 2 wire mode while dev_ptr gt gt statcntl_reg amp BUSY 0 dev_ptr gt gt bank99_reg 0x02c printf Scanning bank 0 channels 0 7 n 1 for i 0 iL8 i while dev_ptr gt gt statcntl_reg amp BUSY 0 dev ptr bankO reg rly printf Scanned bank 0 channel d n i rly 2 2 rly printf Done n exit 0 114 Register Based Programming Appendix B Appendix Relay Multiplexer Error Messages Table C 1 lists the error messages associated with the multiplexer module programmed with SCPI commands See the appropriate command module user s manual for complete information on error messages Number Title Potential Causes 211 Trigger Ignored Trigger received when scan not enabled Trigger received after scan complete Trigger too fast 213 INIT Ignored Attempting to execute an INIT command when a scan is already in progress 224 Illegal Parameter Value Attempting to execute a command with a parameter not applicable to the command 350 Too Many Errors The queue holds a maximum of 30 error numbers messages for each switchbox The queue has overflowed 1500 External Trigger Source Already Assigning external trigger source to switchbox when the trigger Allocated source has already been assigned to another switchbox 2000 Invalid Card N
133. wo Wire Mode WIRE2X64 Switches the and LO terminals of a channel in banks 0 through 7 to that bank s HI COM and LO COM terminals A maximum of 64 two wire channels can be switched This mode is available via E1406A Switchbox Rev A06 00 or later Prior to this revision closing control relay 0995 in two wire mode will change the card configuration to a single 64 channel two wire multiplexer Three Wire Mode WIRE3 Banks are paired 0 4 1 5 2 6 and 3 7 Switches both the HI and LO terminal of a channel in bank 0 3 to that bank s HI and LO COM terminals Also switches the LO terminal of the channel in pair bank 4 7 to that bank s LO COM terminal Relay Multiplexer Command Reference 75 When closing channel in three wire mode only the lower bank 0 3 is specified and the upper bank pair 4 7 will automatically close A maximum of 32 three wire channels can be switched Selecting an upper bank 4 7 channel causes an error NOTE nthree wire mode do not connect user wiring to the HI terminal in the upper bank pair 4 7 This terminal is switched during three wire operation and dependent on relay configurations could be switched to the HI COM terminal Four Wire Mode WIRE4 Banks are paired 0 4 1 5 2 6 and 3 7 Switches both the HI and LO terminal of a channel in bank 0 3 to that bank s HI COM and LO COM terminals Also switches the HI and LO terminal of the channel in pair bank 4 7 to that bank s HI and LO COM
134. ys In addition to the channel switching relays the switch card contains seven control relays numbered 0990 to 0996 These relays switch the COM lines of banks dependent on the mode selected All relays are automatically selected when the module is configured for the desired mode when using the ROUTe FUNCtion card number lt function command For the stand alone switchbox configuration this command must be used in conjunction with the following commands If you only use ROUTe OPEN and ROUTe CLOSe commands the appropriate control relays must also be closed with the CLOSe command ROUTe SCAN MODE mode ROUTe SCAN PORT ROUTe SCAN channel list For the scanning multimeter configuration ROUTe FUNCtion lt card_number gt lt function gt in conjunction with the CONFigure and INITiate or MEASure multimeter commands closes the appropriate control relays See Chapter 3 in this manual and Chapter 5 in the 1326 1411 User s Manual for more information about these commands Table 1 1 shows the control relay functions Chapter 1 Getting Started 13 Basic Operating Modes One wire Mode Two wire Mode Three wire Mode Four wire Mode 14 Getting Started Table 1 1 Control Relay Functions Control Function Relay 0990 Selects or LO terminal for one wire switching 0991 Connects Cable Test or one wire LO REF terminal to the one wire LO COM terminal 0992 Connects lower 32 cha

E1460A 64-Channel Relay Multiplexer Module User`s Manual

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