用户手册 — National Instruments NI USB-6525

目录

• NI USB-6525 User Guide and Specifications

  1
• Introduction

  1
  • Figure 1. USB-6525 Top View

    1
  • Figure 2. USB-6525 Back View

    2
• Installing Software

  2
• Hardware

  2
  • Figure 3. USB-6525 Block Diagram

    2
• Setting Up Hardware

  3
  • Figure 4. Signal Label Application Diagram

    3
• I/O Connector

  4
  • Table 1. Digital Terminal Assignments

    4
  • Signal Descriptions

    5
    • Table 2. Signal Descriptions

      5
• Digital I/O

  5
  • Optically Isolated Inputs

    5
    • Sensing DC Voltages

      5
    • Signal Connection Example

      6
    • Figure 5. Connecting a Power Supply and Load to the Isolated Input

      6
  • Solid-State Relay (SSR) Outputs

    7
    • Figure 6. Connecting a Load to the USB-6525

      7
  • Power-On and Power-Off Conditions

    7
  • Protecting Inductive Loads

    7
    • Figure 7. Contact Protection for DC Inductive Loads

      8
    • Figure 8. Contact Protection for AC Inductive Loads

      8
  • Using the USB-6525 as a TTL Output Device

    9
    • Figure 9. TTL Device Signal Connection Example

      9
• Event Counter

  9
• Specifications

  9
  • Isolated Inputs

    9
  • Solid-State Relay Outputs

    10
  • Counter

    10
  • Bus Interface

    10
  • Power Requirements

    11
  • Physical Characteristics

    11
  • Safety

    11
    • Standards

      11
    • Isolation

      12
    • Hazardous Locations

      12
  • Environmental

    12
  • Electromagnetic Compatibility

    12
  • CE Compliance

    13
  • Waste Electrical and Electronic Equipment (WEEE)

    13
• Safety Guidelines

  13
• Where to Go for Support

  15