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Worldwide Technical Support and Product Information www.natinst.com National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin, Texas 78759-3504 USA Tel: 512 794 0100 Worldwide Offices Australia 03 9879 5166, Austria 0662 45 79 90 0, Belgium 02 757 00 20, Brazil 011 284 5011, Canada (Ontario) 905 785 0085, Canada (QuÈbec) 514 694 8521, Denmark 45 76 26 00,...
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Warranty The SCXI-1160 is warranted against defects in materials and workmanship for a period of one year from the date of shipment, as evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace equipment that proves to be defective during the warranty period. This warranty includes parts and labor.
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WARNING REGARDING MEDICAL AND CLINICAL USE OF NATIONAL INSTRUMENTS PRODUCTS National Instruments products are not designed with components and testing for a level of reliability suitable for use in or in connection with surgical implants or as critical components in any life support systems whose failure to perform can reasonably be expected to cause significant injury to a human.
About This Manual This manual describes the electrical and mechanical aspects of the SCXI-1160 and contains information concerning its operation and programming. The SCXI-1160 is a member of the National Instruments Signal Conditioning eXtensions for Instrumentation (SCXI) Series modules for the National Instruments data acquisition plug-in boards. This module is designed for switching and controlling low-level and power signals.
Italic text denotes emphasis, a cross reference, or an introduction to a key concept. Lab board Lab board refers to the National Instruments Lab-LC, Lab-NB, Lab-PC, and Lab-PC+ boards unless otherwise noted. MC refers to the Micro Channel series computers.
SCXI-1000/1001 User Manual (part number 320423-01) Customer Communication National Instruments wants to receive your comments on our products and manuals. We are interested in the applications you develop with our products, and we want to help if you have problems with them. To make it easy for you to contact us, this manual contains comment and configuration forms for you to complete.
Lab-NB, Lab-PC, Lab-PC+, Lab-LC, and PC-LPM-16 boards; and with the DIO-24, DIO-32F, and DIO-96 boards. You can also use the SCXI-1160 with other systems that comply with the specifications given in Chapter 2, Configuration and Installation. You can control several SCXI-1160s in a single chassis with one data acquisition board.
This manual contains complete instructions for directly programming the SCXI-1160. You can order separate software packages for controlling the SCXI-1160 from National Instruments. When you combine the PC, AT, and MC data acquisition boards with the SCXI-1160, you can use LabVIEW for Windows or LabWindows for DOS. LabVIEW and LabWindows are innovative program development software packages for data acquisition and control applications.
• ERNI Components, Inc. (part number 913523) The mating connector for the SCXI-1160 front connector is a special 48-pin reversed DIN C female connector. National Instruments uses a polarized and keyed connector to prevent inadvertent upside-down connection to the SCXI-1160. The manufacturer part number National Instruments uses for this mating connector is as follows: •...
SCXI chassis, signal connections to the SCXI-1160, and cable wiring. Module Configuration The SCXI-1160 includes five jumpers that are shown in the parts locator diagrams in Figures 2-1 and 2-2. Figure 2-1 shows the general parts locator diagram of the SCXI-1160 and Figure 2-2 shows a detailed parts locator diagram of the SCXI-1160.
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Connections, including power signals to ground and vice versa, that exceed any of the maximum signal ratings on the SCXI-1160 can result in damage to any or all of the boards connected to the SCXI chassis, to the host computer, and to the SCXI-1160 module.
• Jumpers W2, W3, and W4 select whether the SCXI-1160 is to be connected to a DIO board or to an MIO board. If nothing is cabled to the rear signal connector of the SCXI-1160, the position of these jumpers is irrelevant.
Configuration and Installation Chapter 2 is in which slot. In addition to reading the Module ID Register, the MISO line on the SCXI-1160 can read the Status Register, which indicates the status of the relays. National Instruments software uses this feature.
SCXI-1160 with a DIO type board, place all three jumpers in the DIO position. This position is the factory setting. If you want to use the SCXI-1160 with an MIO type board, place all three jumpers in the MIO position. If nothing is cabled to the rear signal connector of the SCXI-1160, the position of these jumpers is irrelevant.
SCXI-1340 cable assembly to the rear signal connector on the SCXI-1160 module. Screw the rear panel to the rear threaded strip. Attach the loose end of the cable to the data acquisition board.
Chapter 2 Configuration and Installation Front Connector Figure 2-3 shows the pin assignments for the SCXI-1160 front connector. Signal Column Signal Number Name Name COM (0) NO (0) NC (0) COM (1) NO (1) NC (1) COM (2) NO (2)
Figure 2-5. Arc Suppressor Pad Locations Terminal Block A terminal block with screw terminals is available for easy signal connection to the SCXI-1160 inputs. This kit is listed in the Optional Equipment section in Chapter 1, Introduction. SCXI-1324 Terminal Block The SCXI-1324 terminal block consists of a shielded board with supports to connect it to the SCXI-1160 input connector.
Chapter 2 Configuration and Installation When connecting your signals to the SCXI-1324 for use with the SCXI-1160, follow the labeling as indicated in Figure 2-6, SCXI-1324 Parts Locator Diagram. Signal Connection. To connect the signal to the terminal block, use the following procedure: 1.
1. Connect the SCXI-1160 front connector to its mating connector on the terminal block. 2. Make sure that the SCXI-1160 top and bottom thumbscrews do not obstruct the rear panel of the terminal block. 3. Tighten the top and bottom screws on the back of the terminal block to hold it securely in place.
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Pin 47 is for DIO type boards with jumpers W2, W3, and W4 in the DIO position. When you configure the SCXI-1160 for an MIO type board, the digital I/O signals of the SCXI-1160 match the digital I/O lines of the MIO-16 board. When used with an SCXI -1341, SCXI-1342, or SCXI-1344 cable assembly, the SCXI-1160 signals match the digital lines of the Lab-NB/Lab-PC/Lab-PC+/Lab-LC boards and the PC-LPM-16 board, respectively.
After the Address Handler has been written to, an address line of a register has been asserted. Now you can write to the SCXI-1160 Data Register and read from its Module ID Register or Status Register using the following protocols. The contents of the Module ID Register are reinitialized by deasserting Slot-Select.
Slot 0 Slot-Select Register. 5. If you are not selecting another slot, write zero to the Slot 0 Slot-Select Register. Figure 2-11 illustrates a write to the SCXI-1160 Data Register of the binary pattern: 10000011 00001111 00000000 00000000...
SERCLK = 1 (and has not changed since DAQD*/A went low). 2. The Status Register of the SCXI-1160 consists of a single bit that the relays control. You do not need to pulse the SERCLK to read the Status Register: Read the level of the SERDATOUT line.
Configuration and Installation Chapter 2 Figure 2-13 illustrates a read of the SCXI-1160 Status Register after the relays have switched states. SLOT0SEL* DAQD*/A switching SERDATOUT Relays Finish Switching Relays switching = 20 msec maximum switching Figure 2-13. SCXI-1160 Status Register Timing Diagram For further details on programming these signals, refer to Chapter 5, Programming.
Chapter 3 Theory of Operation This chapter contains a functional overview of the SCXI-1160 module and explains the operation of each functional unit making up the SCXI-1160. Functional Overview The block diagram in Figure 3-1 illustrates the key functional components of the SCXI-1160.
• Relay channels The SCXI-1160 module is dedicated to switching and controlling power and low-level signal sources. The theory of operation of each of the SCXI-1160 components is explained in the rest of this chapter. SCXIbus Connector Figure 3-2 shows the pinout of the SCXIbus connector.
Jumper W5 must be set to position 1 The SCXI-1160 module converts the data acquisition board signals to open-collector signals on the backplane of the SCXI chassis. For the data acquisition board to talk to a slot, the board must first assert the SS* for that slot.
The digital interface circuitry is divided into a data acquisition section and an SCXIbus section. The SCXI-1160 connects to the SCXIbus via a 4x24 metral receptacle and to the data acquisition board via a 50-pin ribbon-cable header. The digital interface circuitry buffers the digital signals from the data acquisition board and the SCXIbus and sends signals back and forth between the data acquisition board and the SCXIbus.
The Status Register is a 1-bit register that indicates whether or not the relays are switching. Relay Channels The SCXI-1160 consists of 16 independent one form C relays. Each relay has three connections at the front connector–the common (COM), the normally closed (NC), and the normally open (NO) positions, which are available at each relay.
SCXI-1160 Registers The SCXI-1160 is a class II module. It has four registers and an address handler. The Module ID Register is a 4-byte, read-only register that contains the Module ID number of the SCXI-1160.
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Register Descriptions Module ID Register The Module ID register contains the 4-byte module ID code for the SCXI-1160. This code number is read on the MISO line whenever the Module ID register is accessed. The bytes appear least significant byte first. Within each byte, data is sent out MSB first. Additional data transfers result in all zeros being sent on the MISO line.
Chapter 4 Data Register The Data Register contains 32 bits that control the state of each relay of the SCXI-1160. Whenever the Address Handler selects the Data Register, the Data Register shifts in the data present on the MOSI line, bit 31 first, and then latches the data when it is deselected. At power up or reset, the Data Register content is unknown and its outputs are not driving the relay coils.
Requirements and Communication Protocol section in Chapter 2, Configuration and Installation. The rear signal connector pin equivalences to the different National Instruments data acquisition boards are given in Table 5-1. See also Appendix E, SCXI-1160 Cabling. The Data Register is a write-only register.
For a timing illustration of a Data Register write, see Figure 2-11, Data Register Write Timing Diagram. Initialization The SCXI-1160 powers up with its Data Register content unknown. If you reset the chassis, the Data Register content stays unchanged and the relays maintain their previous states. Examples This section describes how to program the SCXI-1160, either alone or in conjunction with other modules.
Slot 1. Example 2 An SCXI-1000 chassis has four SCXI-1160 modules in Slots 1, 2, 3, and 4. The SCXI-1160 in Slot 4 is cabled to the data acquisition board. You want to connect the NO position to the COM position on all of the modules and leave all the other channels unchanged.
Programming Example 3 You have a multichassis system with an SCXI-1160 in Slot 4 of chassis 1, and another SCXI-1160 in Slot 11 of chassis 2. You want to do the following: 1. In chassis 1, connect the NC position to the COM position on channels 1, 5, and 8, and connect the NO position to the COM position on channels 3 and 4.
Appendix A Specifications This appendix lists the specifications for the SCXI-1160. These are typical at 25° C and 50% humidity unless otherwise stated. The operating temperature range is 0° to 50° C. Contact Ratings Switching power (resistive load) 500 VA maximum 60 W maximum for V ≤30 V...
Appendix B Rear Signal Connector This appendix describes the pinout and signal names for the SCXI-1160 50-pin rear signal connector, including a description of each connection. Figure B-1 shows the pin assignments for the SCXI-1160 rear signal connector. 9 10...
Appendix D SCXI-1160 Front Connector This appendix describes the pinout and signal names for the SCXI-1160 front connector, including a description of each connection. Figure D-1 shows the pin assignments for the SCXI-1160 front connector. Signal Column Signal Number Name...
SCXI-1160 Front Connector Appendix D Front Connector Signal Descriptions Signal Name Description A1, A3, A5, A7, NO <15..0> Normally Open Contact – These are the A9, A11, A13, normally open contacts of the relays A15, A17, A19, 15 through 0.
Appendix E SCXI-1160 Cabling This appendix describes how to use and install the hardware accessories for the SCXI-1160: • SCXI-1340 cable assembly • SCXI-1341 Lab-NB, Lab-PC, and Lab-PC+ cable assembly • SCXI-1342 PC-LPM-16 cable assembly • SCXI-1344 Lab-LC cable assembly •...
The SCXI-1340 rear panel gives the module and the chassis both mechanical and electrical shielding. Table E-1 lists the pin equivalences of the MIO-16 and DIO-24 boards and the SCXI-1160. Table E-1. SCXI-1160 and Board Pinout Equivalences SCXI-1160 Rear Signal...
SCXI-1180 feedthrough panel or SCXI-1181 breadboard module. The adapter board gives the Lab boards full access to the digital control lines. The position of jumper W1 on the SCXI-1341 and SCXI-1344 is irrelevant because the SCXI-1160 does not use jumper W1. Table E-2 lists the SCXI-1341 and SCXI-1344 pin translations.
+5 V 34-35 No Connect All other pins of the Lab board pinout are not sent to the SCXI-1160 rear signal connector. SCXI-1341 and SCXI-1344 Installation Follow these steps to install the SCXI-1341 or SCXI-1344: 1. Make sure that the computer and the SCXI chassis are turned off.
The other end of the cable is divided into two 50-pin connectors. Use positions 1 through 50 of the NB5 connector to control the SCXI-1160 and the SCXIbus via serial communication. Positions 51 through 100 of the NB5 cable are not used by the SCXI-1160 for serial communication.
DIO-32F board to the other piece, the adapter board. The adapter board converts the signals from the DIO-32F I/O connector to a format compatible with the SCXI-1160 rear signal connector pinout. The adapter board also has an additional male breakout connector that provides the unmodified DIO-32F signals for use with an SCXI-1180 feedthrough panel or SCXI-1181 breadboard module.
Check the installation. Multiple-Chassis Connections for the SCXI-1160 The SCXI-1160 can operate in a multiple-chassis system with the DIO-24, DIO-96, MIO-16, and AT-MIO-64F-5 boards. A multiple-chassis system can consist of up to eight SCXI-1001 chassis controlled by the same data acquisition board. Notice that you cannot use the SCXI-1000 in a multiple-chassis system.
5. Plug the SCXI-1350 into the back of an SCXI module in the first chassis so that the module rear connector mates with the front connector on the SCXI-1350 adapter board. When you are connecting to an SCXI-1160, be sure to set the jumpers for either a DIO-type or an MIO-type board as needed.
Customer Communication ___________________________________________________ National Instruments offers technical support through electronic, fax, and telephone systems. The electronic services include our Web site, an FTP site, and a fax-on-demand system. If you have a hardware or software problem, please first try the electronic support systems. If the information available on these systems does not answer your questions, contact one of our technical support centers, which are staffed by applications engineers, for support by telephone and fax.
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Telephone and Fax Support National Instruments has branch offices all over the world. Use the following list to find the technical support number for your country. If there is no National Instruments office in your country, contact the source from which you purchased your software to obtain support.
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National Instruments for technical support helps our applications engineers answer your questions more efficiently. If you are using any National Instruments hardware or software products related to this problem, include the configuration forms from their user manuals. Include additional pages if necessary.
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Completing this form accurately before contacting National Instruments for technical support helps our applications engineers answer your questions more efficiently.
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Documentation Comment Form National Instruments encourages you to comment on the documentation supplied with our products. This information helps us provide quality products to meet your needs. Title: SCXI-1160 User Manual Edition Date: March 1999 Part Number: 320513B-01 Please comment on the completeness, clarity, and organization of the manual.
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3-5 theory of operation, 3-5 to 3-6 DIO-32F adapter board. See SCXI-1348 DIO-32F adapter board. DIO-96 board connection SCXI-1160 and DIO-96 board pinout equivalences, E-7 SCXI-1351 and NB5 cable assembly and installation, E-6 documentation conventions used in manual, xii...
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2-8 hazardous voltage cautions SCXI-1160 module, 2-4 SCXI-1324 terminal block, 2-13 inductive load connections. See contact protection. initialization of SCXI-1160 module, 5-3 installation hardware installation, 2-7 to 2-8 SCXI-1180 feedthrough panel, E-10 to E-12 SCXI-1302 50-pin terminal block, E-13...
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SCXI-1160 and board pinout equivalences, E-2 SCXI-1160 and DIO-96 board pinout equivalences, E-7 SCXIbus connector to rear signal connector, 3-5 SCXIbus to SCXI-1160 rear signal connector to data acquisition board, 5-2 pin translations SCXI-1341 Lab-NB, Lab-PC, or Lab-PC+, E-4 SCXI-1342 PC-LPM-16 adapter board, E-5...
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5-1 register selection and write procedure, 5-2 to 5-3 register writes, 5-1 to 5-2 SCXIbus to SCXI-1160 rear signal connector to data acquisition board pin equivalents, 5-2 rear signal connector, 2-15 to 2-19 digital I/O signal connections, 2-17 to 2-19...
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5-4 theory of operation, 3-7 to 3-8 truth table for resetting and setting relays, 4-4 RESET* signal, 3-4, C-3 SCXI-1160 module. See also installation; jumper configuration. block diagram, 3-1 illustration, 1-1 kit contents, 1-2 optional equipment, 1-3 to 1-4...
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