Instruction/ maintenance manual of the product 1128 National Instruments
Go to page of 97
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.
An important point after buying a device National Instruments 1128 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought National Instruments 1128 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data National Instruments 1128 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, National Instruments 1128 you will learn all the available features of the product, as well as information on its operation. The information that you get National Instruments 1128 will certainly help you make a decision on the purchase.
If you already are a holder of National Instruments 1128, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime National Instruments 1128.
However, one of the most important roles played by the user manual is to help in solving problems with National Instruments 1128. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device National Instruments 1128 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
