Rockwell-automation 1771-IR , D17716.5.76 RTD INPUT MODULE Manual de usuario descargar pdf (Pagina 30)

Module Configuration

Chapter 5

56

Word DescriptionBits

1.5 0 1 1 1 1

Word 1 (cont.) 2.0 1 0 1 0 0

2.5 1 1 0 0 1

3.0 1 1 1 1 0

Word 2 If bit 10 is set in word 1, and temperature readings are desired, word

2 must also be used. Enter the exact resistance of 10 ohm RTD at

C in BCD. Range is 9.00 to 11.00 ohms. Values less than 9.00

ohms or greater than 11.00 ohms will default to 10.00 ohms.

Non-BCD values will also default to 10.00 ohms.

Words 3-8 Individual channel bias words entered in BCD. This value is

subtracted from the channel data in the BTR. The bias value is

always a positive number. Bias value range is 0<

bias<9999.

Words 9-14 Individual channel calibration words.

Word 15 Auto-calibration request word - used to automatically calibrate

selected channels and save the calibration constants in EEPROM.

Bit 00 Offset calibration complete

Bit 01 Gain calibration complete

Bit 02 Save complete

Bit 06 EEPROM fault

Bit 07 Faulty calibration (no save)

Bits 10-15 Channel failed calibration

If zeroes are written to the module in all configuration positions, the module

will default to:

BCD format

100 ohm platinum RTD

temperature in degrees C

real time sampling = inhibited (sample time = 50msec)

In this chapter you learned how to configure your module’s hardware, condition

your inputs and enter your data.

Default Configuration for the

RTD Input Module

Chapter Summary

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Rockwell-automation 1771-IR , D17716.5.76 RTD INPUT MODULE Manual de usuario Pagina 30