Rockwell Automation 1770-KF2 Data Highway or Highway Plus Interface Module User Manual - Manual (Page 113)

Message Packet Formats
Chapter 5
5-34
Physical Write
This is a write command where the starting address is a PLC-3 physical
address. It is used to download to a PLC-3 from a computer. The
destination 1775-KA module will accept this command only after the
source station has successfully transmitted a shutdown request. Function
code for this command is 8.
TNS DST SRC CMD FNC
0F 08
PLC-3
PHYSICAL ADDRESS DATA — Max. of 238 Bytes or 119 Words
TNS STS CMD
4F
SRC DST
TNS STS CMD
4F
SRC DST EXT
STS
STS
Command Packet:
Reply Format: (EXT STS Byte Is Optional)
B. Format When Reporting an Error
A. Format When Successful Execution
Restart Request
This command is used by the computer to terminate an upload or a
download. The computer cannot issue this command until after it has
successfully completed an upload or download operation with the
destination station. This command causes the 1775-KA module to revoke
the upload and download privileges for the source computer station and to
initialize a PLC-3 start.
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
0A