Manuel d'utilisation / d'entretien du produit SCXI-1127 du fabricant National Instruments
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SCXI ™ SCXI-1127/1128 User Manual SCXI-1127/1128 User Manual December 2000 Edition Part Number 3221 49B-01.
Worldwide Technical Support and Product Info rmation ni.com National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin, Texas 78759-3504 USA Tel: 512 794 0100 Worldwide Offices Au.
Important Information Warranty The SCXI-1127 and SC XI-1128 are warranted against defect s in materials and workma nship for a period of one year from the date of shipment, as evidenced by receipts or other documentation.
Compliance FCC/Canada Radio Frequency Interference Compliance* Determining FCC Class The Federal Communications Commission (FCC) has rules to protect wireless communications from interference.
• Connect the equipment into an outlet on a circuit different f rom that to which the receiver is connected. • Consult the dealer or an experienced radio/T V technician for help. Canadian Departmen t of Communications This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Conventions The follo wing con ventions are used in this manual: < > Angle brackets that contain numbers separated b y an ellips is represent a range of v alues associated with a bit or signal name — for example, DBIO<3..0>. » The » symbol leads you through nested menu items and dial og box options to a final action.
© National Instruments Corporation vii SCXI-1127/1128 User Manual Contents Chapter 1 Installing and Configuring the SCXI-1127/1128 Installing the Software ............. .............. ........... .............. ............ .............. ...........
Contents SCXI-1127/1128 User Manual viii ni.com Hardware-Timed Scanning Using a DMM ............ ............ 2-14 Hardware-Timed Scanning Using External Instru ments ... 2-14 Synchronous Scanning .................. .............. .............. .....
Contents © National Instruments Corporation ix SCXI-1127/1128 User Manual Glossary Index Figures Figure 1-1. Installing the SCXI-1127/1128 into an SCXI Chassis ............. ............. 1-4 Figure 1-2. 4-Slot Single-Chassis Installation .. ........
Contents SCXI-1127/1128 User Manual x ni.com Figure 2-24. 8 × 16 Matrix Parts Locator Diagram ...................... ............... ........... ... 2-27 Figure 2-25. 8 × 16 Matrix Schematic .................... .............. .............. .......
© National Instruments Corporation 1-1 SCXI-1127/1128 User Manual 1 Installing and Configuring the SCXI-1127/1128 The SCXI-1127 an d SCXI-1228 modules are h igh-voltage multiplexer/matrix mo dules. The SCXI-1127 is a high-density arm ature relay module.
Chapter 1 Installing and Configuring the SCXI-1127/1128 SCXI-1127/1128 User Manual 1-2 ni.com In a matrix configuration, you can e xpand the columns of the matrix using the HV AB-backplane adapter . For example, you can connect tw o SCXI-1127/1128 modu les via the HV AB-backplane adapter to create a 4 × 16 matrix.
Chapter 1 Installing and Configur ing the SCXI-1127/1 128 © National Instruments Corporation 1-3 SCXI-1127/1128 User Manual The NI-SWITCH and NI-DMM version 1.5 installat ion window of fers three choices: • Install NI-DMM — Choose this selection if you want to install only the software for the DMM.
Chapter 1 Installing and Configuring the SCXI-1127/1128 SCXI-1127/1128 User Manual 1-4 ni.com Installing the SCXI-1127/1128 Module into the SCXI Chassis You need the following items to complete the installation: • SCXI-1127/1128 • SCXI chassis • 1/8 in.
Chapter 1 Installing and Configur ing the SCXI-1127/1 128 © National Instruments Corporation 1-5 SCXI-1127/1128 User Manual Note When installing the SCX I-1127/1128 module in an SCXI chassis, the right most slot (when the chassis is vie wed from the front) must be filled f irst, then fill the slot to the left with the next SCXI-1127/1128.
Chapter 1 Installing and Configuring the SCXI-1127/1128 SCXI-1127/1128 User Manual 1-6 ni.com Single 4-Slot Chassis Configuration Refer to Figures 1-2 and 1-3 to make connections in the single 4-slot chassis configuration.
Chapter 1 Installing and Configur ing the SCXI-1127/1 128 © National Instruments Corporation 1-7 SCXI-1127/1128 User Manual Figure 1-3. 4-Slot Configuration Parts Locator Diagram 1. Install the 2-slot HV AB-backplane ad apter behind slots 3 and 4. 2.
Chapter 1 Installing and Configuring the SCXI-1127/1128 SCXI-1127/1128 User Manual 1-8 ni.com Single 12-Slot Chassis Configuration Refer to Figures 1-4 and 1-5 to make connections in the single 12-slot chassis configuration.
Chapter 1 Installing and Configur ing the SCXI-1127/1 128 © National Instruments Corporation 1-9 SCXI-1127/1128 User Manual Figure 1-5. 12-Slot Configuration Parts Locator Diagram 1. Install the 8-slot HV AB-backplane ad apter behind slots 5 through 12.
Chapter 1 Installing and Configuring the SCXI-1127/1128 SCXI-1127/1128 User Manual 1-10 ni.com Connecting the SCXI-1127/1128 to the DMM in a Multichassis System The following sections describe how to .
Chapter 1 Installing and Configur ing the SCXI-1127/1 128 © National Instruments Corporation 1-11 SCXI-1127/1128 User Manual Refer to Figure 1-6 to set up this multich assis configuration. Figure 1-6. 4-Slot to 4-Slot Multichassis Configuration Parts Locator Diagram 1.
Chapter 1 Installing and Configuring the SCXI-1127/1128 SCXI-1127/1128 User Manual 1-12 ni.com 2. Connect the HV8-HV8 cable from the f irst chassis, normally the connector behind slot 1, to the HV AB connect or (behind slot 4) of the next chassis.
Chapter 1 Installing and Configur ing the SCXI-1127/1 128 © National Instruments Corporation 1-13 SCXI-1127/1128 User Manual Refer to Figure 1-7 to set up this multich assis configuration.
Chapter 1 Installing and Configuring the SCXI-1127/1128 SCXI-1127/1128 User Manual 1-14 ni.com 1. Install the HV AB-backplane adapters and jumper blocks in the 12-slot chassis as described in steps 1 through 3 in Single 12-Slot Chassis Configuration .
Chapter 1 Installing and Configur ing the SCXI-1127/1 128 © National Instruments Corporation 1-15 SCXI-1127/1128 User Manual Refer to Figure 1-8 to set up this multich assis configuration. Figure 1-8. 12-Slot to 12-Slot Multichassis Configuration Parts Locator Diagram 1.
Chapter 1 Installing and Configuring the SCXI-1127/1128 SCXI-1127/1128 User Manual 1-16 ni.com Notes Do not connect the SH9MD-9MD cable to the 2-slot HV AB-backplane adapter . An SCXI-1127/1128 is required in slot 12 of each 12-slot chassis to establish communications with all the chassis in the system.
Chapter 1 Installing and Configur ing the SCXI-1127/1 128 © National Instruments Corporation 1-17 SCXI-1127/1128 User Manual 5. Connect the HV8-B AN4 cable from the DMM to the HV AB connector behind SCXI slot 4. 6. Connect the SH9MD-9MD cable from the DMM to the A UX IN connector .
Chapter 1 Installing and Configuring the SCXI-1127/1128 SCXI-1127/1128 User Manual 1-18 ni.com DMM in PXI Slots 1 through 3 Configuration To install your DMM in PXI slots 1 throu gh 3, follow these steps: 1. Install your DMM in any one of the PXI slots 1 through 3.
Chapter 1 Installing and Configur ing the SCXI-1127/1 128 © National Instruments Corporation 1-19 SCXI-1127/1128 User Manual • At least one other SCXI mod ule other than the SCXI-1127/1128, installed in the chassis Consult the documentation for yo ur SCXI chassis and other SCXI modul es for additional instructions and warnings.
Chapter 1 Installing and Configuring the SCXI-1127/1128 SCXI-1127/1128 User Manual 1-20 ni.com 3. Attach the other end of the D A Q cable to the National Instruments D A Q device. 4. Check the installation. 5. T urn on the SCXI chassis. 6. T urn on the computer or reconnect it to your chassis.
Chapter 1 Installing and Configur ing the SCXI-1127/1 128 © National Instruments Corporation 1-21 SCXI-1127/1128 User Manual – SH9MD-9MD cable – 8-position HV AB plug – HV8-B AN4 cable • Exte.
Chapter 1 Installing and Configuring the SCXI-1127/1128 SCXI-1127/1128 User Manual 1-22 ni.com Note For the system to function properly , it must be controlled by a D A Q device or NI 4021 switch controller , or be a 2000 Series SCX I chassis.
Chapter 1 Installing and Configur ing the SCXI-1127/1 128 © National Instruments Corporation 1-23 SCXI-1127/1128 User Manual 2. Y ou will see the chassis selected in the list. Display the list of modules in the chassis b y clicking the + nex t to the Chassis icon.
Chapter 1 Installing and Configuring the SCXI-1127/1128 SCXI-1127/1128 User Manual 1-24 ni.com T o remo ve a module or chassis, right-click the chassis or module you want to remov e and select Delete . T o test the chassis conf iguration, right-click the chassis and select Test .
Chapter 1 Installing and Configur ing the SCXI-1127/1 128 © National Instruments Corporation 1-25 SCXI-1127/1128 User Manual National Instruments for service and repair to ensure that its safety features are not compromised. When using the terminal block with high common-mode voltages, you must insulate yo ur sig n al w i res appropria t e l y .
© National Instruments Corporation 2-1 SCXI-1127/1128 User Manual 2 Using the SCXI-1127/1128 This chapter discusses in detail the operation of the SCXI-1127/1128. There are two major modes of operatio n: multiplexer and matri x. A third mode of operation, independent mode, allows you to access advanced features of the SCXI-1127/1128.
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-2 ni.com The SCXI-1331 terminal block consists o f a shielded board w ith 84 screw terminals for easy connection to the SCXI-1127/112 8 input connector . The SCXI-1331 is shown in Figure 2-1.
Chapter 2 Using the SCXI-1127 /1128 © National Instruments Corporation 2-3 SCXI-1127/1128 User Manual The SCXI-1127/1128 cont ains a safety interlocking mechanis m that pre vents high voltages from appearing on the input connector when a terminal block is not present.
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-4 ni.com Figure 2-3 shows an example of a 2-wire configuration using the SCXI-1331 terminal block. The diagram shows the 2-wire terminal block connections for channels 2, 5, 24, and 27. Channel 2 measures a voltage source (V 1 ).
Chapter 2 Using the SCXI-1127 /1128 © National Instruments Corporation 2-5 SCXI-1127/1128 User Manual 1-Wire Channel Scanning Configuration The SCXI-1127/1128 has 64, 1-wire channels in t he multiplexer mode th at are available through the SCXI-1331 te rminal block.
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-6 ni.com Figure 2-5. 1-Wire Wiring Diagram Both channel 24 (V 1 ) and 59 (V 2 ) are measuring v o ltage sources. The positiv e terminal of these sources go to screw terminals labeled 24 and 59 respecti vely .
Chapter 2 Using the SCXI-1127 /1128 © National Instruments Corporation 2-7 SCXI-1127/1128 User Manual Figure 2-6. 4-Wire Block Diagram When used with a DMM for 4-wire ohms measurement, the upper dif ferential multiplex er provides the e xcitation source for the 4-wire channel being scanned.
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-8 ni.com Figure 2-7. 4-Wire Wiring Diagram On po wer up, the AB0 and AB2 switches are open, disconnecting the SCXI-1127/1128 from the hig h-voltage b u s.
Chapter 2 Using the SCXI-1127 /1128 © National Instruments Corporation 2-9 SCXI-1127/1128 User Manual negati ve scre w terminals and sensed via 1B positive and ne gativ e screw terminals. Note OUT0± and OUT2± are also referred to as COM0± in a 4-wire configuration.
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-10 ni.com current and the other for sensing the voltage de veloped across the resistor , as shown in Figure 2-9.
Chapter 2 Using the SCXI-1127 /1128 © National Instruments Corporation 2-11 SCXI-1127/1128 User Manual Figure 2-10. Mixed Mode Scanning with an SCXI-1331 Y ou can scan the channels in an y sequence you want.
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-12 ni.com SCXI-1127/1128. In its sim plest form, hard ware-timed scanning uses one triggering signal to advance the multiplex er to the next channel in the scan . This is called synchronous scanning .
Chapter 2 Using the SCXI-1127 /1128 © National Instruments Corporation 2-13 SCXI-1127/1128 User Manual Figure 2-11. Hardware Scanning Flowchart The channel scan list is downloaded to SCXI-1127/1128. The first channel in the scan list is selected. Switch to the next channel in the scan list.
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-14 ni.com Hardware-T imed Scanning Using a DMM When using a DMM with the SCXI-1127/1128, sy nchronous mode is the only mode in which the DMM and the SCXI-1127/1128 operat e. The DMM issues a trigger to advance the multiplexer at regular intervals.
Chapter 2 Using the SCXI-1127 /1128 © National Instruments Corporation 2-15 SCXI-1127/1128 User Manual The module to which you con nected your external DMM trigger signals is referred to as the cabled module. If you add additional SCXI-1127/1128 modules to your system, it is not necessary to cable the VM C signal to each module.
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-16 ni.com module. Y ou can bus the VMC onto the SCXI backplane (T rig 0), allowing other modules to be triggered as shown in Figure 2-14. Y ou must daisy-chain the SCAN A D VD trigger from one modu le to another .
Chapter 2 Using the SCXI-1127 /1128 © National Instruments Corporation 2-17 SCXI-1127/1128 User Manual Software Scanning Unlike hardware scanning, software scanning does not use hardware-generated triggers.
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-18 ni.com Figure 2-16. T emperature Me asurement W iring Diagram The SCXI-1331 contains a cold-junction temperature sensor (CJS). This sensor is a special channel on the SCXI-1127/1128 dedicat ed to measuring the ambient temperature of the terminal block.
Chapter 2 Using the SCXI-1127 /1128 © National Instruments Corporation 2-19 SCXI-1127/1128 User Manual NI-D A Q, use the Thermistor_Convert function. The VI takes the output v oltage of the temperature sensor , the reference voltage, and the precision resistance and returns the thermistor temperature.
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-20 ni.com the best accuracy, while 1-wire provides the maximum channel count. Use the 4-wire configuration to eliminate the effects of lead resistance on the measurement.
Chapter 2 Using the SCXI-1127 /1128 © National Instruments Corporation 2-21 SCXI-1127/1128 User Manual Figure 2-18 shows an e xample of the SCX I-1331 and SCXI-1127/11 28 configured as a 1 × 32, 2-wire matrix. The diagram shows the 2-wire terminal block connections for channels 3, 15, 27 and OUT0.
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-22 ni.com Figure 2-19. SCXI-1332 T erminal Block The SCXI-1127/1128 instal led with the SCXI-1332 provides you with an 4 × 8 matrix without any extra wiring except for hooking up your sign als to the columns and ro ws of the matrix.
Chapter 2 Using the SCXI-1127 /1128 © National Instruments Corporation 2-23 SCXI-1127/1128 User Manual supply output v oltage and to measure the load resistors.
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-24 ni.com Figure 2-21. SCXI-1332 Connected to an SCXI-1127/1128 Schematic Matrix Expansion You can build matrices larger than 4 × 8 by using multiple SCXI-1127/1128 m odules. You can build these larger matrices using row and column expansion of the 4 × 8 matrix.
Chapter 2 Using the SCXI-1127 /1128 © National Instruments Corporation 2-25 SCXI-1127/1128 User Manual Figure 2-22. 8 × 8 Matrix Parts Locator Diagram 1 SCXI-1127/133 2 #1 2 Matrix Expansion Cables .
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-26 ni.com Figure 2-23. 8 × 8 Matrix Sche matic T o make a lar ger matrix, such as a 8 × 16 matrix, you m ust make both column and row expansions. Follo w these instr uctions to build a larger matrix: 1.
Chapter 2 Using the SCXI-1127 /1128 © National Instruments Corporation 2-27 SCXI-1127/1128 User Manual 2. Expand the rows to the tar get nu mber , 8 in this case, by connecting the columns of the appropriate number of 4 × 16 matrix blocks, two in this case, using matrix expansion cables.
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-28 ni.com Figure 2-25 shows the schematic of the 8 × 16 matrix shown in Figure 2-24. Figure 2-25.
Chapter 2 Using the SCXI-1127 /1128 © National Instruments Corporation 2-29 SCXI-1127/1128 User Manual Independent Mode The SCXI-1127/1128 pow ers up in independent mode. In this mode, you can close or open any switch on the module via NI-SWITCH to the SCXI-1127/1128.
Chapter 2 Using the SCXI-1127/1128 SCXI-1127/1128 User Manual 2-30 ni.com Figure 2-26. SCXI-1127/1128 Relay Configuration CJS Relay Relay Channel Bank 1 Relay Channel Bank 2 Relay Channel Bank 3 Relay.
© National Instruments Corporation A-1 SCXI-1127/1128 User Manual A Specifications This appendix list s the specifications for the SCXI-1127/11 28 modules. These specif ications are typical at 25 ° C unless otherwise noted . SCXI-1127 Input Characteristics Number of relays available as channels .
Appendix A Specifications for SCXI-1127 SCXI-1127/1128 User Manual A-2 ni.com Channel to channel crosstalk ............ ......50 Ω termination 10 kHz .. ........... .............. ..................≤ – 70 dB 100 kHz ........... ............ ....
Appendix A Specifications for SCXI-1127 © National Instruments Corporation A-3 SCXI-1127/1128 User Manual Physical Dimensions................... .............. ............ 3.0 by 17.2 by 20.3 cm (1.2 by 6 .9 by 8 .0 in.) Environment Op era ti ng tem per at ur e .
Appendix A Specifications for SCXI-1128 SCXI-1127/1128 User Manual A-4 ni.com SCXI-1128 Input Characteristics Number of relays available as channels ....................... .............. .........32 Common-mode vo ltage Channel to channel ...........
Appendix A Specifications for SCXI-1128 © National Instruments Corporation A-5 SCXI-1127/1128 User Manual Dynamic Characteristics Maximum operating speed .................... . 1200 cycles/s Relay operate time (at 20 ° C) ............ .... 0.25 ms typical, 0.
Appendix A Specifications for SCXI-1128 SCXI-1127/1128 User Manual A-6 ni.com Pollution Degree 2 Indoor use only.
© National Instruments Corporation B-1 SCXI-1127/1128 User Manual B Accessories This appendix lists various National Instruments products you can use with your SCXI-1127/1 128 module. • The SCXI-1331 terminal block has screw terminal connections for all channels, bank commons, analog bus, and trigger signals.
Appendix B Accessories SCXI-1127/1128 User Manual B-2 ni.com Contact National Instruments for more specific information about these products..
© National Instruments Corporation C-1 SCXI-1127/1128 User Manual C Customizing Y our Module This appendix describes ho w to customize your SCXI-1127/11 28 module for current-loop recei ving. The SCXI-1127/1128 modules ha ve plated through holes for transforming individual channels to current-to-voltage con verters.
Appendix C Customizing Y our Module SCXI-1127/1128 User Manual C-2 ni.com 1. Ground yourself via a grounding strap or a ground connected to your SCXI chassis. Properly grounding yourself prevents damage to your SCXI module from electrostatic discharge.
© National Instruments Corporation D-1 SCXI-1127/1128 User Manual D SCXI-1127/1128 Front Connector This appendix contains connector diagrams for the SCXI-1127/11 28 switch cards. The diagrams also sho w the signal names that are used when the modules are in 2-wire mode, 1-wire mode, 4-wire mode, and 4 × 8 matrix configuration.
Appendix D SCXI-1127/1128 Front Connector SCXI-1127/1128 User Manual D-2 ni.com Figure D-1. SCXI-1127/1128 Front Connector Pin Assignments for 2-Wire Mode 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 .
Appendix D SCXI-1127/1 128 Front Connector © National Instruments Corporation D-3 SCXI-1127/1128 User Manual Figure D-2. SCXI-1127/1128 Front Connector Pin Assignments for 1-Wire Mode 32 31 30 29 28 .
Appendix D SCXI-1127/1128 Front Connector SCXI-1127/1128 User Manual D-4 ni.com Figure D-3. SCXI-1127/1128 Front Connector Pin Assignments for 4-Wire Mode 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 .
Appendix D SCXI-1127/1 128 Front Connector © National Instruments Corporation D-5 SCXI-1127/1128 User Manual Figure D-4. SCXI-1127/1128 Front Connector Pin Assignments to Create an 4 × 8M a t r i x .
Appendix D SCXI-1127/1128 Front Connector SCXI-1127/1128 User Manual D-6 ni.com Table D-1. Front Connector Signal Description Signal Name Ty p e Description +5 V(ISO) Output +5 VDC isolated source —.
© National Instruments Corporation E-1 SCXI-1127/1128 User Manual E Common Questions This appendix addresses common questions you may hav e while using your SCXI-1127/1 128 module.
Appendix E Common Questions SCXI-1127/1128 User Manual E-2 ni.com • If you use the SCXI-1127/1128 to initiate the scan, make sure the DMM is waiting for a trigger before enabling scanning on the SCXI-1127/1128.
Appendix E Common Q uestions © National Instruments Corporation E-3 SCXI-1127/1128 User Manual behind slots 3 and 4 you hav e co nnected the rows between slot 3 and 4 which creates a 4 × 16 matrix. No w instal l the two 1-slot adapters behind slots 1 and 2.
© National Instruments Corporation F-1 SCXI-1127/1128 User Manual F T echnical Support Resources W eb Support National Instruments W eb support is your first stop for help in solving installation, configuration, and application pro blems and quest ions.
Appendix F T echnical Support Resources SCXI-1127/1128 User Manual F-2 ni.com W orldwide Support National Instruments has of fi ces located around the world to help address your support needs. Y ou can access our branch of f ice W eb sites from the W o rldwide Of fices section of ni.
© National Instruments Corporation G-1 SCXI-1127/1128 User Manual Glossar y Pref ix Meanings V alue n- nano- 10 – 9 µ- micro- 10 – 6 m- milli- 10 – 3 k- kilo- 10 3 M- mega- 10 6 G- giga- 10 9 .
Glossary SCXI-1127/1128 User Manual G-2 ni.com C CC e l s i u s channel pin or wire lead on th e multiplexer to which you apply or from which you read the analog or digital signal.
Glossary © National Instruments Corporation G-3 SCXI-1127/1128 User Manual H handshaking the use of two trigger lines between two instruments, such as a switch and a DMM, to synchronize their actions.
Glossary SCXI-1127/1128 User Manual G-4 ni.com R random scanning scanning the channels in a mux in any order relay a switch that connects or disconnects the signal to a comm on through the physical mo.
Glossary © National Instruments Corporation G-5 SCXI-1127/1128 User Manual soft front panel a graphical program included with NI-SWITCH that you can use to interacti vely control the switch software .
Glossary SCXI-1127/1128 User Manual G-6 ni.com W Ww a t t s wi re data path betw een nodes.
© National Instruments Corporation I -1 SCXI-1127/1128 User Manual Index Numbers 1-wire channel scanning configuration, 2-5 to 2-6 block diagram, 2-5 wiring diagram, 2-6 1_WIRE_LO_REF signal descript.
Index SCXI-1127/1128 User Manual I-2 ni.com D DAQ devices accessing SCXI-1127/1128 through o ther SCXI modules, 1-18 to 1-20 PXI-1010 chassis, 1-20 PXI-1011 chassis, 1-20 DMM (digital multimeter).
Index © National Instruments Corporation I -3 SCXI-1127/1128 User Manual connecting SCXI-1127/1128 to DMM in single chassis system, 1-5 t o 1-9 items required, 1-5 single 4-slot chassis configuration.
Index SCXI-1127/1128 User Manual I-4 ni.com temperature measurements, 2-17 to 2-20 RTD measurements, 2-19 thermistor measurements, 2-19 to 2-20 thermocouple measurements, 2-17 to 2-19 N NI Developer Z.
Index © National Instruments Corporation I -5 SCXI-1127/1128 User Manual SCANADVD signal description (table), D-6 handshaking scan ning, 2-15 to 2-16 hardware timed scanning, 2-12 scanner operation. See multiplexer /scanner operation. SCXI chassis, installing SCXI-1127/1 128 into.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté National Instruments SCXI-1127 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du National Instruments SCXI-1127 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation National Instruments SCXI-1127, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le National Instruments SCXI-1127 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le National Instruments SCXI-1127, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du National Instruments SCXI-1127.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le National Instruments SCXI-1127. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei National Instruments SCXI-1127 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
