B - channel configuration worksheets, Appendix b, Channel configuration worksheets – Rockwell Automation 1746-INT4 Thermocouple/MV Isolated/ User Manual User Manual

Page 89: Appendix

Advertising
background image

89

Publication 1746-UM614B-EN-P - September 2007

Appendix

B

Channel Configuration Worksheets

Select your bit configurations. Write them down at the bottom of the worksheet. Use one worksheet for
each channel.

Channel Configuration Word (O:e.0 through O:e.3) — Bit Descriptions

Bit or
Bits

Define

To Select

Set these bits in the Channel Configuration Word

Description

15…12 11 10 9

8

7

6

5

4

3

2

1

0

0…3

Input
Type

TC Type J

0

0

0

0

Project ______________

Slot Number __________

Channel Number ______

Configure the channel for the
input type connected to it
. Valid
inputs are thermocouples and analog
input signals of ±50 mV and ±100 mV.
You can configure the channel to read
the cold-junction (CJC) temperature.
When reading the CJC temperature,
the channel ignores the physical input
signal.

TC Type K

0

0

0

1

TC Type T

0

0

1

0

TC Type E

0

0

1

1

TC Type R

0

1

0

0

TC Type S

0

1

0

1

TC Type B

0

1

1

0

TC Type N

0

1

1

1

±50 mV

1

0

0

0

±100 mV

1

0

0

1

TC Type C

1

0

1

0

TC Type D

1

0

1

1

Invalid

1

1

0

0

Invalid

1

1

0

1

Invalid

1

1

1

0

CJC Temp

1

1

1

1

4, 5

Data
Format

Engr. Units x1

0

0

Select the channel data format
from: Engineering units (EU) x1 or
x10.
For EU x1, values are in 0.1
degrees or 0.01 mV. For EU x10,
values are in whole °C or °F or
0.1 mV. Scaled-for-PID (value is
the same for any input type).

Proportional input signal range is
scaled to 0…16,383 counts.
Proportional counts (value is
same for any input type).
Proportional input signal range is
scaled to ±32,767 counts. For more
information, refer to page 49.

Engr. Units x10

0

1

Scaled-for-PID

1

0

Counts

1

1

Advertising