Rockwell Automation 1766-Lxxxx MicroLogix 1400 Programmable Controllers User Manual - Manual (Page 289)

Rockwell Automation Publication 1766-UM001H-EN-P - May 2014 249
MicroLogix 1400 Distributed Network Protocol (DNP3) Appendix F
• 32-bit Counter Config File Number
To generate a Counter Object from the DNP3 Subsystem in the controller, you
should configure Counter Object File Numbers in the DNP3 Slave Application
Layer Configuration file.
When only one Counter Object File is configured, the Index number starts from
0 for the configured object. One word is used for one Index of a 16-bit Counter
Object and one double word is used for one Index of a 32-bit Counter Object.
If both the 16-bit Counter Object File Number and 32-bit Counter Object File
Number were configured in the DNP3 Slave Application Layer Configuration
file, the starting index number of 16-bit Counter Object is 0 and the starting
index number of 32-bit Counter Object starts from the ending index number of
the 16-bit Counter Object. For example, if 10 elements of a 16-bit Counter
Object were configured and 10 elements of a 32-bit Counter Object were
configured, the index number will be as below:
• 16-bit Counter Object: From 0 to 9
• 32-bit Counter Object: From 10 to 19
Let's suppose you configured both 16-bit and 32-bit Counter Object Files as
below. Data File N12 has 10 elements and L13 has 10 elements accordingly. In
total, 20 Counter Object indexes are configured. Index 0 of the Counter Object
is N12:0, Index 1 is N12:1, Index 10 is L13:0 and Index 19 is L13:9.
As an example, a Counter Config File is shown below. These files have 10
elements for each. B32:0/0 and B32:0/1 can be configured for Class Level 0, 1, 2