Rockwell-automation 1746-NR4 SLC RTD/Resistance Input Module User Manu Instrukcja Użytkownika Pobierz pdf (Strona 126)

Publication 1746-UM008B-EN-P - December 2006

126 Configuration Worksheet for RTD/Resistance Module

2. Select a data format for the data word value.

Your selection determines how the analog input value registered

by the analog sensor will be expressed in the data word. Enter

your 2-digit binary code in bit field 4 and 5 of the channel

configuration word.

3. Determine the desired state for the channel data word if an open

or short circuit (RTD only) condition is detected for that

channel.

4. Enter the 2-digit binary code in bit field 6 and 7 of the channel

configuration word.

5. If the channel is configured for RTD inputs, determine if you

want the channel data word to read in degrees Fahrenheit (1) or

degrees Celsius (0) and enter a one or a zero in bit 8 of the

configuration word.

IMPORTANT

Complete step 8 if you select proportional counts data format.

Bits 4 and 5

Select

Data

Format

00 = engineering units, x1: 0.1°/step, 0.1 Ω/ step and

0.01 Ω/ step (150Ω, only).

01 = engineering units, x10: 1°/step, 1 Ω/ step, (150 Ω, only).

10 = scaled-for-PID (0 to 16383)

11 = proportional counts (-32768 to +32767) (Refer to select

scaling bits 13 and 14).

Bits 6 and 7

Select

Broken

Input

State

00 = zero 01 = upscale 10 = downscale 11 = invalid

Bits 8

Select

Temperat

ure Units

0 = degrees Celsius 1 = degrees Fahrenheit

1 2 ... 121 122 123 124 125 126 127 128 129 130 131 ... 147 148

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Rockwell-automation 1746-NR4 SLC RTD/Resistance Input Module User Manu Instrukcja Użytkownika Strona 126