Rockwell Automation 1770-KF2 Data Highway or Highway Plus Interface Module User Manual - Manual (Page 125)

Message Packet Formats
Chapter 5
5-46
The STS and EXT STS bytes contain status and error code information.
For more information on these bytes, see the “Error Codes” section in this
document.
Download Completed
Use this command after downloading a complete system to place the
processor back in the mode that it was in prior to executing the Download
All Request command.
The format for that message is as follows:
Command Format:
Reply Format:
TNS STS CMD
0F
SRC DST
TNS STS CMD
4F
SRC DST
FNC
52
EXT
STS
The STS and EXT STS bytes contain status and error code information.
For more information on these bytes, see the “Error Codes” section in this
document.
Modify PLC-2 Compatibility File
Use this command to change the Compatibility mode file so that
communications from a PLC-2 (or a station emulating a PLC-2 type
processor) at the given station address will use the file specified in the
command. This change in the default file for PLC-2 Compatibility mode
remains in effect until this command is issued again to change it. Cycling
the power to the PLC-5/15 does not reset the default back to the original
file.