Rockwell Automation 1746-NR4 SLC RTD/Resistance Input Module User Manual User Manual
Page 89
Publication 1746-UM008B-EN-P - December 2006
Ladder Programming Examples 89
Configuration Word Setup
This example transfers configuration data and sets the channel enable
bits of all four channels with a single file copy instruction. The file
copy instruction copies four data words from an integer file you create
in the SLC controller’s memory, to the RTD module’s channel
configuration words.
Copy File Data Flow
11
12
13
14
15
0
0
1
0
0
0
0
9
10
8
1
6
7
0
0
0
1
4
5
0
0
0
1
0
1
2
3
Configures Channel For:
Bit Setting
200
Ω Platinum RTD (385)
Bit Number
Eng. Units x 10 (1 °F/ step)
Broken Input (Zero Data Word)
Degrees Fahrenheit (°F)
10 Hz Filter Frequency
Channel Enabled
2.0 mA Excitation Current
Default Scaling
Not Used
Channel Configuration Word 0
Channel Configuration Word 1
Channel Configuration Word 2
Channel Configuration Word 3
SOURCE DATA FILE
N10:0
N10:1
N10:2
N10:3
ADDRESS
Channel Output Word 0
Channel Output Word 1
Channel Output Word 3
DESTINATION DATA FILE
O:3.0
ADDRESS
Channel Output Word 2
O:3.1
O:3.2
O:3.3