JRC JFE-700, Instruction Manual

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10. Appendix
10-10
responsibility transfer: O
silence: S
10) HBT – Heartbeat supervision sentence
$--HBT,x.x,A,x*hh<CR><LF>
1 2 3
1: Configured repeat interval 1)
2: Equipment status 2)
3: Sequential sentence identifier 3)
Note;
1) Configured autonomous repeat interval in seconds. This field should be set to NULL in
response to a query if the query response feature is supported.
2) Equipment in normal operation A = yes, V = no
This field can be used to indicate the current equipment status. This could be the result of
an built-in integrity testing function.
3) The sequential sentence identifier provides a message identification number from 0 to 9
that is sequentially assigned and is incremented for each new sentence. The count resets to
0 after 9 is used.
11) SRP-System function ID resolution protocol
¥s:ccxxxx*hh¥$--SRP,x,hhhhhhhhhhhh,c--c*hh<CR><LF>
1 2 3 4
1: SFI of the transmitter 1)
2: Instance number of redundant alternative 2)
3: MAC address 3)
4: IP address 4)
Note;
1) Reported SFI of the transmitter
2) Instance number for interface redundancy (i.e. number of physical port for identical SFI),
null if interface redundancy not in use. The instance numbers shall be ordinal with no
skipping (1, 2, 3,…).
3) Reported MAC address used by SFI, 48bit hexadecimal number, for example
32613C4EB605
4) Reported IP address used by SFI as text string, for example 239.192.0.1
3 Input Data Format
1) HBT – Heartbeat supervision sentence
$--HBT,x.x,A,x*hh<CR><LF>
1 2 3
1: Configured repeat interval 1)
2: Equipment status 2)
3: Sequential sentence identifier 3)
Note;
1) Configured autonomous repeat interval in seconds. This field should be set to NULL in
response to a query if the query response feature is supported.