Rockwell Automation Publication 1766-UM001O-EN-P - September 2021 235
Appendix F          MicroLogix 1400 Distributed Network Protocol
Related Object/Configuration File Number:
• Data-Set Prototypes Object File Number
• Data-Set Descriptors Object File Number
To generate a Data-Set Object from the DNP3 Subsystem in the controller, 
configure Data-Set Prototypes/Descriptors Object File Number in the DNP3 
Slave Application Layer Configuration file and also the Maximum Number of 
Data-Set Prototypes/Descriptors Files.
Each Data-Set Prototypes Object file (N data file) can have up to 10 elements of 
Data-Set Prototypes, and each Data-Set Descriptors Object file (N data file) can 
have up to 10 elements of Data-Set Descriptors.
As an example, with Data-Set Prototypes files, if you configure Data-Set 
Prototypes Object File Numbers to 50 and Maximum Number of Data-Set 
Prototypes Files to 9, N Data files 50…58 are reserved to store the structure of 
the Data-Set Prototypes configuration. 
As an example, with Data-Set Descriptors files, if you configure Data-Set 
Descriptors Object File Number to 60 and Maximum Number of Data-Set 
Descriptors File to 9, N Data files 60…68 are reserved to store the structure of 
the Data-Set Descriptors configuration. 
Data Set Prototypes file N50
Data Set Prototypes
Element Array
(N data file)
Data Set Prototypes file N51
Data Set Prototypes file N52
Data Set Prototypes file N53
Data Set Prototypes file N54
Data Set Prototypes file N58
...
Data Set Descriptors file N60
Data Set Descriptors
Element Array
(N data file)
Data Set Descriptors file N61
Data Set Descriptors file N62
Data Set Descriptors file N63
Data Set Descriptors file N64
Data Set Descriptors file N68
...