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Example

Selecting the 2-Wire Ohms Mode

TRIG:SOUR EXT

Selects external trigger source

SCAN:MODE RES

Selects the 2-wire ohms scanning
mode

SCAN  (@100:147)

Sets channel list

INIT

Starts scanning cycle

SCAN:MODE?

[ROUTe:]SCAN:MODE? returns the current state of the scan mode.  The
command returns NONE, VOLT, or RES if the scan mode is in the NONE,
VOLT, or RES mode, respectively.

Example

Query Scan Mode

Since this example selects the RES (ohms) mode, the query command
returns RES.

SCAN:MODE RES

Selects the 2-wire ohms scanning
mode

SCAN:MODE?

Query the scanning mode

Chapter 5

HP E1346A Multiplexer Command Reference   53

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Summary of Contents for HP E1346A

Page 1: ... underutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos In stock Ready to ship TAR certified secure asset solutions Expert team I Trust guarantee I 100 satisfaction All trademarks brand names and brands appearing herein are the property of their respective ...

Page 2: ...ing User Inputs 20 Connecting the Analog Bus 21 Setting the Address Switch 21 Removing the Low to Guard Isolation Jumper 21 Selecting the Interrupt Priority 23 3 Using the HP E1346A Multiplexer Module 25 Using This Chapter 25 Multiplexer Commands 25 Connecting Channels to Common for Making Measurements 26 Example Connect Channel 02 to Common for Voltage Measurement 26 Example Connect Channel 02 to...

Page 3: ...r 39 Command Types 39 Common Command Format 39 SCPI Command Format 39 Linking Commands 41 SCPI Command Reference 41 ABORt 42 ARM 43 COUNt 43 COUNt 43 DISPlay 44 MONitor STATe 44 MONitor CARD 45 INITiate 46 CONTinuous 46 CONTinuous 47 IMMediate 47 OUTPut 48 STATe 48 STATe 48 ROUTe 49 CLOSe 49 CLOSe 50 OPEN 50 OPEN 50 SCAN 51 SCAN MODE 52 SCAN MODE 53 STATus 54 OPERation EVENt 54 OPERation ENABle 54...

Page 4: ...tegy 62 B HP E1346A Multiplexer Registers 63 Register Definitions 63 Register Addressing 63 Computer Configurations 64 Reading the Registers 67 ID and Device Type Registers 67 Writing to the Registers 68 C HP E1346A Multiplexer Error Messages 71 HP E1346A Relay Multiplexer User s Manual Contents 3 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 5: ...Notes 4 HP E1346A Relay Multiplexer User s Manual Contents Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 6: ...es not warrant the Buyer s circuitry or malfunctions of HP products that result from the Buyer s circuitry In addition HP does not warrant any damage that oc curs as a result of the Buyer s circuit or any defects that result from Buyer supplied products NO OTHER WARRANTY IS EXPRESSED OR IMPLIED HP SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE...

Page 7: ...onnel 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 im paired either through physical damage ...

Page 8: ...992 4kVCD 8kVAD IEC 801 3 1984 EN50082 1 1992 3 V m IEC 801 4 1988 EN50082 1 1992 1kV Power Line 5kV Signal Lines Supplementary Information The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC and carries the CE marking accordingly Tested in a typical configuration in an HP B Size VXI mainframe European contact Your local Hewle...

Page 9: ...Notes 8 HP E1346A 48 Channel Single Ended Relay Multiplexer Module User s Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 10: ... are easy to understand O O O O O The documentation is clearly written O O O O O Examples are clear and useful O O O O O Illustrations are clear and helpful O O O O O The documentation meets my overall expectations O O O O O Please write any comments or suggestions below be specific cut along this line fold here Your Name Company Name Job Title Address City State Province Country Zip Postal Code T...

Page 11: ...10 HP E1346A 48 Channel Single Ended Relay Multiplexer Module User s Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 12: ... in module such as a counter or multiple plug in modules for a Switchbox or Scanning Voltmeter Instrument Multiplexer Module Description Refer to Figure 1 1 for the following explanations of the 48 Channel Single Ended Relay Multiplexer Module General Description The multiplexer module provides switching multiplexing of up to 48 channels i e channels 00 to 47 Each channel switches only a High H co...

Page 13: ... channel number 90 91 or 92 for the AT BT or CT Tree Switches respectively The multiplexer also has an additional tree switch called the DT Tree Switch It connects the DT Tree Switch Terminals when closed to any channel Use this tree switch for ohms measurements This connects the ohms current source to the channels inside the module Use channel number 93 to select this tree switch Figure 1 1 Multi...

Page 14: ...he jumper is located on the component assembly Programming the Multiplexer Module The multiplexer module is programmed either in a switchbox or scanning voltmeter configuration To program the multiplexer module using Standard Commands for Programmable Instruments SCPI you must select the controller language interface address and SCPI commands to be used See the HP 75000 Series B Installation and G...

Page 15: ...umber and logical address of a typical single module switchbox Figure 1 3 illustrates the card numbers and logical addresses of a typical multiple module switchbox Figure 1 4 illustrates the card numbers of a typical multiple module scanning voltmeter Figure 1 2 Card Numbers for Single Module Switchboxes Figure 1 3 Card Numbers for Multiple Module Switchboxes 14 Getting Started with the HP E1346A ...

Page 16: ... is in the form ccnn for a single channel ccnn ccnn for multiple channels ccnn ccnn for sequential channels ccnn ccnn ccnn ccnn for groups of sequential channels or any combination of the above where cc is the card number and nn is the channel number For example the command string to close channel 02 of card number 1 is CLOSe 0102 Since cc the card number must be sent it becomes part of the channe...

Page 17: ...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 The computer used in the example is an HP Series 200 300 computer with HP BASIC as the program language The computer interfaces to the mainframe using the Hewlett Packard Interface Bus H...

Page 18: ... configure the multiplexer module Before you install any module disconnect AC power from the mainframe and from user wiring To prevent electrical shock all wires to the channel connections must be insulated to at least 120 V rms 170 V peak Caution MAXIMUM VOLTAGE CURRENT The maximum voltage that may be applied between High H Low L and Guard G terminals is 170 V dc or 120 V rms 170 V peak The maxim...

Page 19: ... If possible use shielded cables with the shields connected to the Guard G terminals and to the low connection near the measurement point Be sure the wires make good connections on the screw terminals Figure 2 1 Multiplexer Module Terminal Block 18 Configuring the HP E1346A Multiplexer Module Chapter 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 20: ...Wiring a Terminal Block Chapter 2 Configuring the HP E1346A Multiplexer Module 19 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 21: ...e module However you may want to configure your own terminal block Figure 2 2 shows the module front panel and the module s connector pin out Figure 2 2 HP E1346A Front Panel and Connector Pin out 20 Configuring the HP E1346A Multiplexer Module Chapter 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 22: ...cting RELAY to RELAY or RELAY to FET MUX use E1400 61605 Setting the Address Switch The address switch LADDR factory setting is 112 You may have changed the setting during module installation Valid address values are from 0 to 255 Refer to the HP 75000 Series B System Installation and Getting Started Guide or the HP E1406 Command Module Manual for addressing information Otherwise to change the set...

Page 23: ... Analog Bus Connections between Multiplexer Multimeter Modules 22 Configuring the HP E1346A Multiplexer Module Chapter 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 24: ...l and solder two new jumpers in the new priority location Figure 2 4 shows a priority change from 1 to 7 Set the interrupt priority level to the interrupt handler level of the module s commander The E1300 E1301 commander always handles all interrupt levels The E1405 E1406 and the E1499A commander s default is to handle interrupt level 1 however they may be configured to handle any combination of i...

Page 25: ...24 Configuring the HP E1346A Multiplexer Module Chapter 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 26: ...MM Starts scanning process use the ROUT SCAN command to select channels for scanning INIT CONT 1 0 ON OFF Enables disables continuous scanning cycles ROUT CLOS channel_list Closes all channels in channel list ROUT CLOS channel_list Queries mainframe for channel closure ROUT OPEN channel_list Opens all channels in channel list ROUT SCAN channel_list Closes all channels in channel list one at a time...

Page 27: ...og Bus connector All channels are referenced to one Low L and one Guard G Common that are normally connected to each other To isolate the Low and Guard Commons remove jumper J01 Example Connect Channel 02 to Common for Voltage Measurement Figure 3 1 shows how to connect channel 02 of a single module switchbox to the Common Terminals for a voltage measurement Execute CLOS 102 102 closes channel 02 ...

Page 28: ... the Common and DT Tree Switch Terminals for an ohms measurement Execute CLOS 102 193 102 closes channel 02 193 closes the DT tree switch Figure 3 2 Connecting Channel 02 to the DT Terminals for an Ohms Measurement Chapter 3 Using the HP E1346A Multiplexer Module 27 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 29: ...of 0 indicates that the channel is open The reverse is true for the OPEN channel_list command The correct responses for both the OPEN and CLOS commands are CLOS 1 Closed 0 Open OPEN 1 Open 0 Closed Note You must read the query response after sending a query command or the switchbox will generate an error Measuring with the HP E1326 E1411 Multimeters The HP E1326 E1411 Multimeters can directly meas...

Page 30: ... Out pulse synchronizes the switchbox with the multimeter HP IB Bus trigger command advances the switchbox channel list multimeter HP IB select code is 7 and primary address is 22 switchbox HP IB select code is 7 the HP IB primary address is 09 and the HP IB secondary address is 14 computer is an HP Series 200 300 Computer with HP BASIC using HP IB Enter and Execute 10 OUTPUT 722 TRIG EXT DC 10 Se...

Page 31: ...47 of a Two Module Switchbox Figure 3 4 Mainframe to Multimeter Connections for Synchronization 30 Using the HP E1346A Multiplexer Module Chapter 3 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 32: ...llows OUTPUT 70914 ARM COUN 10 Enables 10 scanning cycles OUTPUT 70914 SCAN 100 247 Sets scan list Example Making Continuous Scans The INIT CONT ON command selects continuous scanning cycles INIT CONT OFF disables continuous scanning cycles Add the command to the first program example in this section as follows OUTPUT 70914 INIT CONT ON Enables continuous scanning cycles OUTPUT 70914 SCAN 100 247 ...

Page 33: ...32 Using the HP E1346A Multiplexer Module Chapter 3 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 34: ...er source To enable the HP E1300 E1301 Mainframe Trig Out port use the OUTP command Figure 4 2 shows the trigger sources The sources are also used in other HP VXIbus mainframes with HP command modules that have Trig Out ports Scanning with External Instruments The examples on pages 4 4 and 4 5 show different ways to scan channels of a switchbox in an HP E1300 E1301 Mainframe The operation is simil...

Page 35: ...Figure 4 5 Scanning Commands 34 Understanding the HP E1346A Multiplexer Chapter 4 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 36: ...er source as a TRG or GET command executed over HP IB With TRIG SOUR BUS the scan list is advanced for each TRG or GET command received Trigger Hold TRIG SOUR HOLD TRIG SOUR HOLD prevents execution of triggers until trigger source is changed Can use TRIG command to trigger a switchbox set to TRIG SOUR HOLD Immediate Triggering TRIG SOUR IMM TRIG SOUR IMM sets immediate internal triggering The scan...

Page 37: ...GER command line 110 advances the channel list to the next channel 6 Steps 2 5 are repeated for channels 101 through 115 10 OUTPUT 722 TRIG EXT DCV Sets multimeter to external trigger and to measure dc volts 20 OUTPUT 70914 OUTP ON Enables Trig Out port 30 OUTPUT 70914 TRIG SOUR BUS Sets switchbox to receive Bus triggers 40 OUTPUT 70914 SCAN 100 247 Selects the channel list for scanning 50 OUTPUT ...

Page 38: ...ses a trigger output from the Trig Out port 3 The trigger causes the multimeter to make a measurement 4 Measurement result is stored into multimeter memory 5 Trigger is output from multimeter s VOLTMETER COMPLETE port 6 Trigger to Event In port advances the channel list to the next channel 7 Steps 2 5 are repeated for channels 101 through 115 10 OUTPUT 722 TRIG EXT DCV MEM FIFO Sets multimeter to ...

Page 39: ...gister to determine when the scanning cycle completes The computer used in the example is an HP Series 200 300 used with HP BASIC as the program language The computer interfaces with the mainframe over HP IB The HP IB select code is 7 the HP IB primary address is 09 and the HP IB secondary address is 14 Example Scan Complete Interrupt 10 OUTPUT 70914 CLS Clear all switchbox status structure 20 OUT...

Page 40: ...s begin with the asterisk character 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 shown below RST ESR 32 STB SCPI Command Format SCPI commands perform functions like closing switches or querying instrument states or retrieving data A subsystem command structure is a hierarchical structure t...

Page 41: ...ASU or MEASUR will generate an error You may use upper or lower case letters Therefore MEASURE measure and MeAsUrE are all acceptable Implied Commands Implied commands are those which appear in square brackets in the command syntax Note that 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 comm...

Page 42: ...fy a value for an optional parameter the instrument chooses a default value For example consider the ARM COUNt MIN MAX command 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 Be sure to place a spa...

Page 43: ...o stop the scan When the scan is enabled from the interface and the trigger source is TRIGger SOURce BUS or TRIGger SOURce HOLD use ABORt or the HP E1301 front panel Reset Instr or Clear Instr keys to stop the scan Stopping Scans Enabled from Front Panel When a scan is enabled from the HP E1301 front panel execute RST over the interface or the front panel Reset Instr or Clear Instr keys to stop th...

Page 44: ... Setting Ten Scanning Cycles ARM COUN 10 Set 10 scanning cycles SCAN 100 147 Sets channel list INIT Starts scanning cycle COUNt ARM COUNt MIN MAX returns current number of scanning cycles set by ARM COUNt A value is supplied if no MIN or MAX parameter is sent With MIN or MAX passed as parameters MIN returns 1 and MAX returns 32767 Parameters Parameter Name Parameter Type Range of Values MIN MAX nu...

Page 45: ... on to show the channel state of the selected module DISPlay STATe OFF or DISPlay STATe 0 turns the monitor mode off Selecting the Module to be Monitored Use the DISPlay MONitor CARD number AUTO command to select the module Monitor Mode on an HP 1301 Mainframe Display The following shows the monitor mode on the display of an HP E1301 Mainframe Switch_112 Chan 1 93 The example shows that channels 0...

Page 46: ...he DISPlay MONitor CARD command Selecting the Present Module to be Monitored Use the DISPlay MONitor AUTO command to select the last module addressed by a switching command e g ROUTe CLOSe RST Condition DISPlay MONitor CARD AUTO Example Select Module 2 in a Switchbox for Monitoring DISP MON CARD 2 Selects module 2 in a switchbox Chapter 5 HP E1346A Multiplexer Command Reference 45 Artisan Technolo...

Page 47: ...l list closes the first channel in the 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 a trigger source selected by the TRIGger SOURce command advances the scan through the channe...

Page 48: ... the source specified by the TRIGger SOURce command advances 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 A trigger advances the scan through the channel list An invalid channel list generates an error see ROUT SCAN command Stopping Scanning Cycles See the ABORt command Example...

Page 49: ... Trig Out Port Shared by Switchboxes When enabled the Trig Out BNC may be pulsed by any switchbox each time a channel is closed in a switchbox during scanning To disable the output for a specific switchbox send the OUTPut STATe OFF or OUTPut STATe 0 command for that switchbox Related Commands ROUTE SCAN TRIGger SOURce RST Condition OUTPut STATe OFF port disabled Example Enabling Trig Out BNC Port ...

Page 50: ...e channels use ROUTe CLOSe ccnn ccnn sequential channels use ROUTe CLOSe ccnn ccnn a group of sequential channels use ROUTe CLOSe ccnn ccnn ccnn ccnn or any combination Closure order for multiple channels with a single command is not guaranteed Closing the DT Tree Switch Use channel number 93 to close the DT Tree Switch Related Commands ROUTe OPEN ROUTe CLOSe RST Condition All multiplexer channels...

Page 51: ...e channel use ROUTe OPEN ccnn for multiple channels use ROUTe OPEN ccnn ccnn sequential channels use ROUTe OPEN ccnn ccnn a group of sequential channels use ROUTe OPEN ccnn ccnn ccnn ccnn or any combination Opening order for multiple channels with a single command is not guaranteed Opening the DT Tree Switch Use channel numbers 93 to open the DT Tree Switch Related Commands ROUTe CLOSe ROUTe OPEN ...

Page 52: ...topping Scan See the ABORt command Closing the DT Tree Switch See the ROUTe SCAN MODE RES command Related Commands TRIGger TRIGger SOURce RST Condition All channels open Example Scanning Using External Devices The following example shows how to scan channels using the HP E1300 E1301 Mainframe via HP IB and an HP 3457A Digital Multimeter This example uses the mainframe Trig Out port to synchronize ...

Page 53: ...rameter Type Range of Values NONE VOLT RES discrete NONE VOLT RES Comments Order of Command Execution The ROUTe SCAN MODE command must be executed before the ROUTe SCAN channel_list command NONE Mode Description Channel list is setup for a voltage measurement This is the default setting of the multiplexer module and it is therefore not required to send this command for a voltage measurement VOLT M...

Page 54: ...e of the scan mode The command returns NONE VOLT or RES if the scan mode is in the NONE VOLT or RES mode respectively Example Query Scan Mode Since this example selects the RES ohms mode the query command returns RES SCAN MODE RES Selects the 2 wire ohms scanning mode SCAN MODE Query the scanning mode Chapter 5 HP E1346A Multiplexer Command Reference 53 Artisan Technology Group Quality Instrumenta...

Page 55: ... Commands ROUTe SCAN Example Reading the Operation Status Register after a Scanning Cycles STAT OPER Returns the bit values of the Standard Operation Status Register read and print the register value 256 shows bit 8 is set to 1 0 shows bit 8 is set to 0 OPERation ENABle STATus OPERation ENABle number enables the Operation Status Register to set a bit in the Status Register For multiplexer modules ...

Page 56: ...he errors are 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 35...

Page 57: ...Reading the Model Number of a Card 1 Module SYST CTYP 1 Determine the model number CPON SYSTem CPON number ALL opens all channels of a selected or all modules cards in a switchbox Parameters Parameter Name Parameter Type Range of Values number numeric 1 99 Comments Differences between RST and CPON SYSTem CPON only opens all channels of a selected or all modules in a switchbox RST opens all channel...

Page 58: ...Scan using the TRIGger Command TRIG SOUR HOLD Sets trigger source to hold SCAN 100 147 Sets channel list INIT Starts scanning cycle loop statement Start count loop TRIG Advances channel list increment loop Increment count loop SOURce TRIGger SOURce BUS EXTernal HOLD IMMediate specifies the trigger source to advance the channel list during scanning Parameters Parameter Name Parameter Type Range of ...

Page 59: ...nd Trig Out Port Shared by Switchboxes See OUTPut command Related Commands ROUTe SCAN TRIGger ABORt RST Condition TRIGger SOURce IMMediate Example Scanning Using External Triggers In the following example the trigger input is applied to the HP E1300 E1301 Mainframe Event In BNC port TRIG SOUR EXT Sets trigger source to external SCAN 100 147 Sets channel list INIT Starts scanning cycle trigger exte...

Page 60: ... below See note below CLS ESE ESE ESR SRE SRE STB Clear status Event status enable Event status enable query Event status register query Service request enable Service request enable query Read status byte query Clears all status registers see STATus OPERation EVENt See note below See note below See note below Enables status register bits see Chapter 4 for operation See note below See note below T...

Page 61: ... EVENt OPERation ENABle Returns status of Operation Status Register Enables the Operation Status Register to set a bit in theStatus Register SYSTem ERRor CDEScriprion number CTYPe number CPON number ALL Returns error number message in a switchbox Error Queue Returns description of module in a switchbox Returns the module type Sets specified module to its power on state TRIGger IMMediate SOURce BUS...

Page 62: ...urce Load 1 kHz 70 dB 10 kHz 70 dB 100 kHz 70 dB 1 MHz 50 dB 10 MHz 20 dB Closed Channel Capacitance High Low 150 pF Low Guard 150 pF Guard Chassis 2000 pF Maximum Screw Term Wire Size 16 AWG Module Size Device Type B register based Connectors Used P1 No Slots 1 VXIbus Interface Capability Interrupter D16 Interrupt Level 1 7 selectable Power Requirements Voltage 5 12 Peak module current IPM A 0 20...

Page 63: ...e resistance exceeds a pre determined value the relay should be replaced Stability of Contact Resistance The stability of the contact resistance decreases with age Using this method the contact resistance is measured several 5 10 times and the variance of the measurements is determined An increase in the variance indicates deteriorating performance Number of Operations Relays can be replaced after...

Page 64: ...4 addresses allocated Figure B 1 shows the register address location within A16 Figure B 2 shows the location of A16 address space in the HP E1300 01 mainframe and HP E1406 Command Module The Base Address When you are reading or writing to a multiplexer register a hexadecimal or decimal register address is specified This address consists of a A16 base address plus a register offset or register num...

Page 65: ... C Size system Computer Configurations This section contains performance and functional information on the computer configurations that can be used with register based programming Throughput Speed Throughput speed is based on the amount of command parsing and whether the registers are accessed from the VXI backplane or from the HP IB The computer configurations which allow faster throughput relati...

Page 66: ...0 768 LADDR 64 offset register offset Figure B 1 Base_addr LADDR 256 reg number offset Figure B 1 2 External Computer over HP IB to E1300 1301 Mainframe or E1406 Command Module VXI READ logical_address offset VXI WRITE logical_address offset data DIAG PEEK Base_addr offset width DIAG POKE Base_addr offset width data logical address setting LADDR offset register offset FIgure B 1 Base_addr 1FC00016...

Page 67: ...pecified Table B 1 The Register Offset and Register Number Depending on whether absolute addressing or select code 8 is used either a register offset or register number is specified as part of the register address Absolute addressing specifies a register offset which is the register s location in the block of 64 address bytes For example the multiplexer s Channel Register has an offset of 0816 Whe...

Page 68: ...Ibus backplane rather than from the HP IB Also READIO and WRITEIO are not parsed Reading the Registers You can read the following multiplexer registers ID Register base 00h Device Type Register base 02h Status Control Register base 04h Tree Switch Registers base 06h Channel Registers base 08h ID and Device Type Registers ID Registers Reading this register returns FFFFh This shows Hewlett Packard a...

Page 69: ...om busy to not busy corresponds to a backplane interrupt occuring A backplane interrupt always occurs after a channel write Tree Switches and Channel Registers Writing a 1 to these registers closes the channel tree switch and writing a 0 opens the channel tree switch Resetting the Module To reset the module 1 Write a 1 to bit 0 of the Status Control Register 2 Wait 100 usec 3 Write a 0 to bit 0 of...

Page 70: ...witch write 0 opens switch Channel Register and Corresponding Tree Switch Bits b 06 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Write 90 b 08 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Write CH31 CH30 CH29 CH28 CH27 CH26 CH25 CH24 CH07 CH06 CH05 CH04 CH03 CH02 CH01 CH00 b 06 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Write 91 b 08 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Write CH39 CH38 CH37 CH36 CH35 CH34 CH33 CH32...

Page 71: ...70 HP E1346A Multiplexer Registers Appendix B Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 72: ...hbox 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 e g channel 99 of a multiplexer module 2006 Command not supported on this card Sending a command to a module card in a switchbox that is unsupported by the module 2008 Scan list not initialized Executing a scan without the INIT command 20...

Page 73: ...72 HP E1346A Multiplexer Error Messages Appendix C Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 74: ...onnecting 26 connecting to tree terminals 26 Number 13 open 28 reference 26 scanning 29 Selecting 13 Channels scanning 33 CLOS ROUTe CLOSe 15 CLOS ROUTe CLOSe 16 CLOSe 49 CLOSe ROUTe CLOSe 15 CLOSe 50 CLOSe ROUTe CLOSe 28 Closing Channels 26 Command Reference 49 ABORt subsystem 42 ARM subsystem 43 DISPlay subsystem 44 INITiate subsystem 46 OUTPut subsystem 48 STATus subsystem 54 SYSTem subsystem 5...

Page 75: ...aration 7 Connecting Analog Bus 21 Connecting Field Wiring 18 CONTinuous 46 CONTinuous 47 COUNt 43 CPON 56 CTYPe 56 D Declaration of conformity 7 DISPlay subsystem 44 Documentation history 6 DT Tree Switch 26 E Embedded computer programming 66 Error Messages 71 72 Error Numbers 71 72 ERRor 55 External computer programming 67 F Field Wiring Connecting 18 G Guidelines Wiring 18 I IBASIC programming ...

Page 76: ...66 Register Types of Multiplexer Modules 67 Register based programming base address 63 computer configurations 64 DIAG PEEK DIAG POKE 67 embedded computers 66 external computers 67 IBASIC 66 register offset and register number 66 throughput speed 64 VXI READ VXI WRITE 67 Register Status 38 Registers addressing 63 relay life 62 Relay Replacement Strategy 62 ROUT 16 ROUTe CLOSe 16 25 ROUTe CLOSe 25 ...

Page 77: ...witchbox card numbers 14 configuration 13 connecting to tree terminals 26 multiple module 14 reset 16 scanning 33 scanning channels 29 scanning requirements 31 selecting channels 13 single module 14 SYSTem subsystem 55 T Terminal Blocks 18 19 Throughput speed 64 Tree Terminals connecting 26 TRIG SOURce 33 Trigger Sources 33 TRIGger subsystem 57 Triggers scanning 33 V Voltage Measurement 26 W WARNI...

Page 78: ...quipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentation Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate representative or authorized distributor for any manufacturer listed herein We re here to make your life easier How...

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