Rockwell Automation 1770-KF2 Data Highway or Highway Plus Interface Module User Manual - Manual (Page 122)

Message Packet Formats
Chapter 5
5-43
Set to Single-Scan Test Mode
This command sets the selected controller to the Single-Scan Test mode.
Reply Format: (EXT STS Byte Optional)
B. Format When Reporting an Error
TNS STS CMD
4E
SRC DST
TNS STS CMD
4E
SRC DST EXT
STS
A. Format When Successful Execution
Command Format:
TNS STS CMD
0E
SRC DST FNC
04
PLC-4
SEL
Set to Test Mode
This command sets the selected controller to the Test mode.
Reply Format:
B. Format When Reporting an Error (EXT STS Byte Optional)
TNS STS CMD
4E
SRC DST
TNS STS CMD
4E
SRC DST EXT
STS
A. Format When Successful Execution
Command Format:
TNS STS CMD
0E
SRC DST FNC
03
PLC-4
SEL