316 Rockwell Automation Publication 1766-UM001I-EN-P - June 2015
Appendix F MicroLogix 1400 Distributed Network Protocol (DNP3)
Once the DNP3 Master receives a proper Authentication Key (Non-zero value)
from the MicroLogix 1400, the Authentication Key must be used for sending the
request with the function code OPEN_FILE(25) or DELETE_FILE(27).
Rules for Downloading a User Program
A DNP3 master should send the function code OPEN_FILE(25), WRITE(2),
and CLOSE_FILE(26) for downloading user programs.
When a master sends the function code OPEN_FILE(25) with the file command
object, the file name string in File command object must be in this directory and
file name format:
• /EXE/[processorName].IMG
The directory and file name extension string must all be in capital letters and the
string size cannot be exceed 64 bytes. The file name [processorName] is from the
Processor Name in the Controller Properties dialog in RSLogix 500/RSLogix
Micro.
This ladder program [processorName].IMG is generated from RSLogix
500/RSLogix Micro. DNP3 Master should send the [processorName].IMG file
without any modification.
When the MicroLogix 1400 Series A controller receives a request with the
function code WRITE(2) for User Program download, the MicroLogix 1400
activates all configurations as well as channel configurations after the last
application file segment is received. For the MicroLogix 1400 Series B controller,
the function code Activate Configuration (0x1F) is supported.
Unlike Series A controller, the MicroLogix 1400 Series B controller does not
activate all configurations as well as channel configurations after the last
application file segment is received. To activate all configurations, you need to
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