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Tektronix VX4801 manual

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Table of contents for the manual

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    User Manual VX4801 Pr ogrammable Digital I/O Module 070-9153-03 This document applies for firmware version 1.00 and above.[...]

  • Page 2

    Copyright  T ektronix, Inc. All rights reserved. T ektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Printed in the U.S.A. T ektronix, Inc., P .O. Box 1000, W ilsonville, OR 97070[...]

  • Page 3

    W ARRANTY T ektronix warrants that this product will be free from defects in materials and workmanship for a period of three (3) years from the date of shipment. If any such product proves defective during this warranty period, T ektronix, at its option, either will repair the defective product without charge for parts and labor , or will provide a[...]

  • Page 4

    EC Declaration of Conformity We T ektronix Holland N.V . Marktweg 73A 8444 AB Heerenveen The Netherlands declare under sole responsibility that the VX4801 meets the intent of Directive 89/336/EEC for Electromagnetic Compatibility . Compliance was demonstrated to the following specifications as listed in the Official Journal of the European Communit[...]

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          $$# $   "  "$   !$ # 0641'7&6,10  [...]

  • Page 8

    VX4801 Programmable Digital I/O Module iii General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. Only qualified personnel should perform service pr ocedur es. While using this product, you may need to access other parts of the system. Read the General Safet[...]

  • Page 9

    General Safety Summary iv VX4801 Programmable Digital I/O Module Safety T erms and Symbols These terms may appear in this manual: W ARNING. W arning statements identify conditions or practices that could r esult in injury or loss of life. CAUTION. Caution statements identify conditions or practices that could r esult in damage to this pr oduct or o[...]

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    Output high voltage (V oh ) min typ max units I o = –20  A l o = –6 mA Output low voltage (V ol ) l o = 20  A l o = 24 mA Output low current (l ol ) Input high voltage (V ih ) Input low voltage (V il ) * Input current (l in ) T ri-state leakage current (l oz ) 4.4 3.84 5.0 4.2 V V 0 0 0.1 0.5 V V 24 mA 2.0 V 0.8 V 230  A  A 5.0 0.5 [...]

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     [...]

  • Page 77

    VX4801 Programmable Digital I/O Module A–19 Appendix E: Performance V erification 123 This procedure verifies the performance of the VX4801 Programmable Digital I/O Module. The test sequences may be performed in your current VXIbus system if it meets the requirements described in T able 2. Also, it is not necessary to complete the entire procedur[...]

  • Page 78

    Appendix E: Performance V erification A–20 VX4801 Programmable Digital I/O Module NOTE . Commands to the VX4801 may be enter ed in upper or lower case. However , to avoid confusion between the alphanumeric characters; e.g. one (1) and L or zer o( 0) and o, all commands ar e shown in the case which pr ovides the gr eatest distinction. Use special [...]

  • Page 79

    Appendix E: Performance V erification VX4801 Programmable Digital I/O Module A–21 34 18 1 Byte 3 LSB Byte 2 MSB Byte 5 LSB GND Byte 0 LSB DAK 6 DA V 5 GND GND GND 1 34 39 50 33 17 1 14 25 13 8 Byte 4 LSB DRd Byte 2 T ri-St Byte 1 T ri-St VX4801 Slave Module VX4801 Under-test Byte 0 T ri-St Byte 5 T ri-St Byte 4 T ri–St Byte 3 T ri-St RFD 17 33 [...]

  • Page 80

    Appendix E: Performance V erification A–22 VX4801 Programmable Digital I/O Module VX4801 Under-T est Configuration In order to perform this procedure, the VX4801 under-test must be installed in an approved VXIbus system. At a minimum, the system must contain the elements listed in T able 2. T able 2: Elements of a Minimum VX4801 Under-T est Syste[...]

  • Page 81

    Appendix E: Performance V erification VX4801 Programmable Digital I/O Module A–23 T est Record Photocopy the T est Record, and use it to record the performance verification results for your module. T able 4: VX4801 T est Record VX4801 Serial Number: T emperature and Relative Humidity: Date of Last Calibration: V erification Performed by: Certific[...]

  • Page 82

    Appendix E: Performance V erification A–24 VX4801 Programmable Digital I/O Module Self T est The VX4801 includes a built-in self test function (BITE) which is automatically executed each time the power is turned on and when the Internal Self T est (S) command is issued. BITE uses internal routines and circuitry to confirm basic I/O functionality [...]

  • Page 83

    Appendix E: Performance V erification VX4801 Programmable Digital I/O Module A–25 NOTE . If you ar e using National Instruments NI-488.2 softwar e you may wish to select the buffer 1 mode to allow mor e comfortable viewing of the ASCII r esponse. Just type buffer 1. 1. T o verify the system configuration, send the T ABLE command to the Slot 0 Res[...]

  • Page 84

    Appendix E: Performance V erification A–26 VX4801 Programmable Digital I/O Module   (Observe: VX4521 Slot 0 indicates S in 2nd digit) NOTE . The zer o length r ead serves to un-addr ess the Slot 0 controller which allows it to detect the VXIbus interrupt and assert the SRQ. b. Check that the F AILED light on the VX4801-device-under[...]

  • Page 85

    Appendix E: Performance V erification VX4801 Programmable Digital I/O Module A–27 2. Perform a self test and query for any error codes (in ASCII format) with the VX4801 device-under-test and the Slave VX4801:        (Observe: NO ERRORS)  ?[...]

  • Page 86

    Appendix E: Performance V erification A–28 VX4801 Programmable Digital I/O Module 4. T o verify the even byte data inputs and the odd byte data outputs, reset the VX4801 to its power-up state and then set its mode for the even bytes (0, 2, 4) to be active low inputs, for the odd bytes (1, 3, 5) to be active high outputs loaded with a Load Output [...]

  • Page 87

    Appendix E: Performance V erification VX4801 Programmable Digital I/O Module A–29       (Observe: response of 00FF00FF00FF) b. Repeat the above test, this time with the even bytes set as inputs and [...]

  • Page 88

    Appendix E: Performance V erification A–30 VX4801 Programmable Digital I/O Module     (Observe: response of 00FF00FF00FF) d. Set the Slave to un-assert external tri-state signals. Then set the VX4801 for the odd bytes to be inputs, for the even bytes to be outputs with a Load Output value of 00, and[...]

  • Page 89

    Appendix E: Performance V erification VX4801 Programmable Digital I/O Module A–31 This test sequence verifies that data can be transferred to and from the VX4801 using the four handshake signal lines Data Ready (DRD), Data Acknowledge (DAK), Ready for Data (RFD), and Data A vailable (DA V). NOTE . T yping err ors will result in a VX4801 err or co[...]

  • Page 90

    Appendix E: Performance V erification A–32 VX4801 Programmable Digital I/O Module d. Set the Slave to initialize byte 2 with an Output Data value of 01 (asserts RFD to the VX4801) and verify that the VX4801 correspondingly asserts DA V :    (Observe: VX4801 DA V light on) e. Set the Slave to input bytes 1 and 3 an[...]

  • Page 91

    Appendix E: Performance V erification VX4801 Programmable Digital I/O Module A–33 e. Send a byte 5 input command to the VX4801 and verify that the DAK light is on. Then read the data, observe a response of AA, perform a second read and observe that the VX4801 is again waiting for a DRD strobe:   (Observe VX4801 DAK ligh[...]