Rockwell Automation 1766-Lxxxx MicroLogix 1400 Programmable Controllers User Manual User Manual
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Rockwell Automation Publication 1766-UM001H-EN-P - May 2014
Appendix F MicroLogix 1400 Distributed Network Protocol (DNP3)
Related Object File Number:
• 16-bit Analog Input Object File Number
• 32-bit Analog Input Object File Number
• Short Floating Point Analog Input Object File Number
Related Configuration File Number:
• 16-bit Analog Input Config File Number
• 32-bit Analog Input Config File Number
• Short Floating Point Analog Input Config File Number
To generate an Analog Input Object from the DNP3 Subsystem in the controller,
you should configure Analog Input Object File Number in the DNP3 Slave
Application Layer Configuration file.
When only one Analog Input Object File is configured, the Index number starts
from 0 for the configured object. 1 word is used for 1 Index of 16-bit Analog
Input Object, 1 double word is used for 1 Index of 32-bit Analog Input Object,
and 1 short float is used for 1 Index of Short Floating Point Analog Input Object.
If 16-bit Analog Input Object File Number, 32-bit Analog Input Object File
Number, and Short Floating Point Analog Input Object File Number were
configured in the DNP3 Slave Application Layer Configuration file, the starting
index number of 16-bit Analog Input Object is 0 and the starting index number
of 32-bit Analog Input Object starts from the ending index number of 16-bit
Analog Input Object.
For example, if 10 elements of 16-bit Analog Input Object were configured, 10
elements of 32-bit Analog Input Object, and 10 elements of Short Floating Point
Analog Input Object were configured, the index numbers will be:
• 16-bit Analog Input Object: From 0 to 9
• 32-bit Analog Input Object: From 10 to 19
• Short Floating Point Analog Input Object: From 20 to 29
As an example, a configuration of 16-bit, 32-bit and Short Floating Point Analog
Input Object Files is shown below. Data File N14 has 10 elements, L15 has 10
elements and F16 has 10 elements accordingly. A total of 30 Analog Input Object