Rockwell Automation 1770-KF2 Data Highway or Highway Plus Interface Module User Manual - Manual (Page 114)

Message Packet Formats
Chapter 5
5-35
Shutdown Request
This command is used by the computer to ask the 1775-KA module to
initiate either a PLC-3 shutdown (if the computer has download
privileges) or a freeze on file allocations (if the computer has upload
privileges). The computer cannot issue this command until it has
successfully transmitted an upload or download request to the 1775-KA
module.
Reply Format: (EXT STS Byte Optional)
B. Format When Reporting an Error
TNS STS CMD
4F
SRC DST
TNS STS CMD
4F
SRC DST EXT
STS
A. Format When Successful Execution
Command Format:
TNS STS CMD
0F
SRC DST FNC
07
Upload Request
This command is used by the computer to inform the 1775-KA module
that it wants to do an upload. If the module grants the upload privilege,
the computer may begin issuing physical reads. If a different station
already has the upload privilege, the second station is denied the privilege.
The function code is 6.
Reply Format: (EXT STS Byte Optional)
B. Format When Reporting an Error
TNS STS CMD
4F
SRC DST
TNS STS CMD
4F
SRC DST EXT
STS
A. Format When Successful Execution
Command Format:
TNS STS CMD
0F
SRC DST FNC
06