Rockwell Automation 1746-NT8 SLC 500 Thermocouple/mV Analog Input Module User Manual User Manual

Page 5

Advertising
background image

Publication 1746-UM022B-EN-P - January 2005

Table of Contents iii

Out-of-Range Detection (Bit 13 for Under Range, Bit 14 for
Over Range) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Channel Error (Bit 15) . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Module Status LED (Green) . . . . . . . . . . . . . . . . . . . . . 6-5

Interpreting I/O Error Codes . . . . . . . . . . . . . . . . . . . . . . . 6-5

Chapter 7

Maintaining Your Module And
Safety Considerations

Preventive Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Appendix A

Module Specifications

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Physical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . A-2
Input Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Overall Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Millivolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Thermocouple . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6

Appendix B

Using Grounded Junction,
Ungrounded Junction, and
Exposed Junction Thermocouples

Thermocouple Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Grounded Junction . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Ungrounded (Insulated) Junction . . . . . . . . . . . . . . . . . B-2
Exposed Junction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Grounded Junction . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Exposed Junction Thermocouples. . . . . . . . . . . . . . . . . B-4

Appendix C

Configuring the 1746-NT8 Module
with RSLogix 500

Glossary

Index

Advertising