Chapter_2, Chapter – Spectrum Controls 1769sc-IF8u User Manual

Page 19

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Before You Begin

This chapter can help you to get started using the 1769sc-IF8u Universal
input module. We base the procedures here on the assumption that you
have an understanding of Allen-Bradley controllers. You should
understand electronic process control and be able to interpret the ladder
logic instructions required to generate the electronic signals that control
your application.

Because it is a start-up guide for experienced users, this chapter does not
contain detailed explanations about the procedures listed. It does,
however, reference other chapters in this book where you can get more
information about applying the procedures described in each step.

If you have any questions or are unfamiliar with the terms used or
concepts presented in the procedural steps, always read the referenced
chapters and other recommended documentation before trying to apply
the information.

Required Tools and
Equipment

Have the following tools and equipment ready:

· medium blade or cross-head screwdriver

· thermocouple or millivolt analog input device

· shielded, twisted-pair cable for wiring (Belden™ 8761 or equivalent for

millivolt and current inputs, Belden™ 9501, 9533 for RTD or shielded
thermocouple extension wire for thermocouple inputs)

· controller (for example, a MicroLogix™ 1500 or CompactLogix™

controller)

· programming device and software (for example, RSLogix 500™ or

RSLogix 5000™)

What You Need To Do

This chapter covers:
1. Ensuring that your power supply is adequate
2. Attaching and locking the module