Rockwell-automation 1746-NR4 SLC RTD/Resistance Input Module User Manu Manual de usuario Pagina 89

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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
1112131415
0010000
910 8
1
67
00 01
45
0001
0123
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
A
DDRESS
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
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