Input type temperature scale – Rockwell Automation 1771-IXE/D Thermocouple/Millivolt Input Module User Manual User Manual
Page 30

4–2
Module Configuration
Publication 1771Ć6.5.130 Ć May 1999
The thermocouple/millivolt input module accepts the following types
of inputs:
Table 4.A
Types of Inputs
Input Type
Input Type
Temperature
Range
o
C
Bits
00
01
02
Bits
03
04
05
Millivolt
Millivolt
-100 to +100
0
0
0
0
0
0
Thermocouple
E
-270 to 1000
1
0
0
1
0
0
J
-210 to 1200
0
1
0
0
1
0
K
-270 to 1380
1
1
0
1
1
0
T
-270 to 400
0
0
1
0
0
1
R
-50 to 1770
1
0
1
1
0
1
S
-50 to 1770
0
1
1
0
1
1
1
1
1
1
1
1
The input type is selected by setting bits in the block transfer write
(BTW) file. Two different inputs can be selected. You can have 4
inputs set for one type, and 4 inputs set for another type; or you can
have all inputs the same. If you select different types of inputs, set bit
06 to 1. If you do not select 2 different input types, the module
defaults to all inputs set to those selected by bits 00 –02.
Set these bits
for input type.
Set this bit for 2 different
input types (see table 5.D)
Word
17
16
15
14
13
12
11
10
07
06
05
04
03
02
01
00
1
SampleTime
Format
T
0
E
Input Type
Input Type
The temperature scale reported by the module is selected by setting
bit 10 in the configuration word. When bit 10 is set (1), the
temperature is reported in degrees Fahrenheit. When reset (0), the
temperature is reported in degrees Celsius.
The temperature bit 10 is ignored when the millivolt input type is
selected.
Input Type
Temperature Scale