Rockwell Automation 1747-KFC15 SLC500 CONTROLNET RS-232 USER MANUAL - Manual (Page 44)

C-2 DF1 Diagnostic Command Support
1747-5.34 - June 1998
Diagnostic Loop
You can use this command to check the integrity of the transmissions over
the communication link. The command message transmits up to 243 bytes
of data to a node interface module. The receiving module should reply to
this command by transmitting the same data back to the originating node.
Table C.1: Command Format
Table C.2: Reply Format
Diagnostic Read Counters
This command reads the diagnostic counters from the KFC15 module.
The format of these counters is given below. The address and size fields
can have any value (but they must be included).
Table C.3: Command Format
Table C.4: Reply Format
1 byte 1 byte 2 bytes 1 byte
243 bytes
max
CMD
06
STS TNS
FNC
00
DATA
1 byte 1 byte 2 bytes 243 bytes max
CMD
46
STS TNS DATA
1 byte 1 byte 2 bytes 1 byte 2 bytes 1 byte
CMD
06
STS TNS
FNC
01 ADDR
0000 SIZE
00
1 byte 1 byte 2 bytes 16 bytes
CMD
46
STS TNS DATA