5 - channel configuration, data, and status, Channel configuration, data, and status, Channel configuration – Rockwell Automation 1746-NT4 Series B,D17466.6.1 SLC 500 4-Channel Thermocouple/mV Input Module User Manual User Manual
Page 53: Chapter 5, Channel configuration -1, Chapter
1
Publication 1746-UM007C-EN-P - July 2004
Chapter
5
Channel Configuration, Data, and Status
This chapter examines the channel configuration word and the
channel status word bit by bit, and explains how the module uses
configuration data and generates status during operation. This chapter
includes:
•
Channel Configuration
•
Channel Configuration Procedure
•
Channel Data Word
•
Channel Status Checking
•
Status Conditions
Channel Configuration
The channel configuration word is a part of the thermocouple
module’s output image as shown below. Output words 0-3
correspond to channels 0-3 on the module. Output words 4-7 are not
used.
After module installation each channel must be configured to establish
the way the channel operates (e.g., thermocouple type J, reading in
°C, etc.). You configure the channel by entering bit values into the
configuration word using your programming software. Programming
is discussed in chapter 6. Addressing is explained in chapter 4.
The configuration word default setting is all zeros.
Module Output Image (Configuration Word)
CH 0 Configuration Word
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
O:e.0
O:e.1
O:e.2
O:e.3
CH 1 Configuration Word
CH 2 Configuration Word
CH 3 Configuration Word
O:e.4
.
.
O:e.7
Not Used