256 Rockwell Automation Publication 1766-UM001O-EN-P - September 2021
Appendix F MicroLogix 1400 Distributed Network Protocol
• g70v6 File-Control – File transport status: supported
• g70v7 File-Control – File descriptor: supported
• g70v8 File-Control – File specification string: not supported by Series A
controllers, supported by Series B and Series C controllers
• g91v1 Status of Requested Operation – Activate configuration: not
supported by Series A controllers, supported by Series B and Series C
controllers
Default Directories and Files
The controller has default directories and files for file handling in a DNP3
subsystem.
The default directories and files can be read from the controller using the
function code OPEN_FILE(25), Read(1), and CLOSE_FILE(26).
Currently supported directories are /EXE and /DIAG. Supported files are listed
in this section. These directories/files cannot be removed and cannot be
created using DNP3 requests.
• The directory/file names must all be in capital letters.
• Root level can only be a directory marker. The directory marker is / for
Series A, or \ for Series B and Series C.
• Directory level can only contain directories.
• File level can only contain files.
Note that the directory marker is different in MicroLogix 1400 Series A and
Series B and Series C controllers. The directory marker is / for Series A and \
for Series B and Series C controllers. In this document, / is used to explain File
Object feature.
Generating *.IMG files using RSLogix 500/RSLogix Micro
Typically, RSLogix 500/RSLogix Micro stores the ladder program as RSLogix™
Files (*.RSS). However, to download a ladder program using a File Object via
DNP3 network, you must save your ladder program in the RSLogix IMG Files
(*.IMG) format.
Table 30 - Supported Files and Directories
Root Level Directory Level File Level Full Name String to Access
//
EXE /EXE
[processorName].IMG /EXE/[processorName].IMG
DIAG /DIAG
CH0.CSF /DIAG/CH0.CSF
CH1.ESF /DIAG/CH1.ESF
CH2.CSF /DIAG/CH2.CSF
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