Xerox 7122 Manuals

Table of Contents

• 5

  Table of Contents
• 7

  General Description
  • 7

    Introduction
• 8

  Functional Description
  • 8

    Data Representation
    • 8

      EBCDIC Card Format
    • 8

      Binary Card Format
• 8

  EBCDIC Read Operation
• 8

  Binary Read Operation
  • 9

    Card Reader States
    • 9

      Operational States
      • 9

        Conditions
      • 9

        Modes
    • 9

      Transitions Between States
  • 9

    Data Transfer
  • 10

    Card Reader State Transitions
• 11

  Program Interface
  • 11

    Read Orders
    • 11

      Read Card Binary
  • 11

    Binary Mode Stacking Action
    • 12

      Read Card Automatic
  • 12

    Key Events
    • 12

      Start Input/Output
    • 12

      Unusual End Conditions
    • 12

      Channel End Conditions
  • 12

    Automatic Mode Stacking Action
    • 13

      Error Conditions
      • 13

        Incorrect Length
      • 13

        Invalid Ebcdic Punches
      • 13

        Data Overrun
      • 13

        Read Verify (Model 7140-02)
    • 13

      Not Operational Conditions
  • 14

    Card Reader I/O Instruction Execution Response
    • 15

      Operational Status Byte
• 15

  Device Status Response for SIO, TIO, and HIO
• 15

  Device Status Response for TDV
• 16

  Device Status Response for AIO
• 16

  Operational Status Byte
  • 17

    Control I Ing System/Card Reader Actions
• 18

  Card Reader Event Times (Model 7120)
• 19

  Card Reader Event Times (Model 7121)
• 20

  Card Reader Event Times (Model 7122)
• 21

  Card Reader Event Times (Model 7140)
• 22

  Operations
  • 22

    Introduction
  • 22

    Operator Controls (Model 7120)
    • 22

      Oper'l/Power
    • 22

      Start
    • 22

      Fault/Reset
    • 23

      Stop
    • 23

      Feed/Read
    • 23

      Reset
    • 23

      Hopper/Stacker
  • 23

    Card File Loading Procedure (Model 7120)
  • 23

    Model 7140 Card Reader Control Panel
  • 24

    Card File Unloading Procedure (Model 7120)
    • 24

      Reader Running
• 24

  Model 7120 Input Hopper
• 24

  Model 7120 Multiple Output Stackers
• 24

  Models 7121/7122 Input Hopper and Output Stacker
  • 25

    Reader Ha I Ted
  • 25

    (Models 7121/7122)
  • 25

    Reader Halted
  • 25

    Reader Running
  • 25

    Card File Loading Procedure (Model 7140)
  • 25

    Card File Unloading Procedure (Model 7140)
  • 26

    Xerox Ebcdic Card Codes
  • 28

    Programming Examples
  • 28

    Sigma 5-9 Programming Example
  • 29

    Xerox 530 and Sigma 2/3 Programming Example