Chapter 6
Ladder Programming Examples
6–3
Procedure
1. Using the memory map function to create a data file, create integer file
N10. Integer file N10 should contain four elements (N10:0 through
N10:3).
2. Using the APS data monitor function, enter the configuration parameters
for all four RTD channels into a source integer data file N10. Refer to
Figure 6.2 for the bit values. See appendix iv for a channel configuration
worksheet.
address 15 data 0 address 15 data 0
N10:0 0000 1001 0001 0001
N10:1 0000 1001 0001 0001
N10:2 0000 1001 0001 0001
N10:3 0000 1001 0001 0001
Press a key or enter value
N10:3/0 =
offline no forces binary data decimal addr File EXMPL
F7
F5
NEXT
FILE
SPECIFY
ADDRESS
F8
PREV
FILE
F1
CHANGE
RADIX
1
1
3. Use the copy file instruction (COP) to copy the contents of integer file
N10 to the four consecutive output words of the RTD module beginning
with O:3.0. To do this, program a rung as shown in Figure 6.4. All
elements are copied from the specified source file to the destination
during the first scan following power up.
Figure 6.4
File Copy Instruction
] [
COP
COPY FILE
Source
#N10:0
Dest
#O:3.0
Length
4
First Pass Bit
S:1
15
Initialize RTD module
On power up, bit S:1/15 is set for the first program scan and
integer file N10 is sent to the RTD module channel
configuration word.
Summary of Contents for SLC 500 1746-NR4
Page 1: ...User Manual SLC 500t RTD Resistance Input Module Cat No 1746 NR4 Allen Bradley AB Spares ...
Page 15: ...Preface P 8 Notes AB Spares ...
Page 37: ...Chapter 2 Quick Start 2 12 Notes AB Spares ...
Page 63: ...Chapter 4 Preliminary Operating Considerations 4 12 Notes AB Spares ...
Page 87: ...Chapter 5 Channel Configuration Data and Status 5 24 Notes AB Spares ...
Page 107: ...Chapter 7 Module Diagnostics and Troubleshooting 7 8 Notes AB Spares ...
Page 117: ...Chapter 8 Application Examples 8 10 Notes AB Spares ...
Page 123: ...Appendix A Specifications A 6 Notes AB Spares ...
Page 125: ...Appendix B RTD Standards B 2 Notes AB Spares ...
