USER MANUAL User Manual

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

STS TNS

FNC

DATA

1 byte 1 byte 2 bytes 243 bytes max

CMD

STS TNS DATA

1 byte 1 byte 2 bytes 1 byte 2 bytes 1 byte

CMD

STS TNS

FNC

ADDR

0000

SIZE

1 byte 1 byte 2 bytes 16 bytes

CMD

STS TNS DATA