Rockwell Automation 1746-NR4 SLC RTD/Resistance Input Module User Manual - Manual (Page 30)

Publication 1746-UM008B-EN-P - December 2006
30 Quick Start Guide
Program the Configuration
Follow these steps to complete the programming necessary to
establish the new configuration word setting in the previous step.
1. Create integer file N10 using the memory map function.
Integer file N10 should contain one element for each channel
used. For this example we only need one, N10:0.
2. Enter the configuration parameters for channel 0 into integer
N10:0.
In this example, all the bits of N10:0 are zero except for the
channel enable (N10:0/11).
3. Program an instruction in your ladder logic to copy the contents
of N10:0 to output word O:1.0.
See Output Image Detail on page 28.
For more information refer to chapter 6, Ladder Programming
Examples and chapter 8, Application Examples.
Initial Configuration Word Setting
Dest # O:1.0
Length 1
On power±up, the first pass bit
(S:1/15) is set for one scan, enabling
the COPY instruction that transfers a
one to bit 11 of channel configuration
word 0. This enables channel 0,
which directs the RTD module to scan
channel 0 and to present the analog
data to the SLC processor.
] [
COP
COPY FILE
Source
# N10:0
First Pass Bit
S:1
15