Heartbeat Messages (v2)

Heartbeat Messages

The following messages are Heartbeat ones:

HB.1 Heartbeat (From FM to FS, LB and MC, or from FS to MC)

The HB.1 message does not have any extra field. Just the first 8 fields with 0 fields for the payload.

HB.2 Alive (to FM or FS, in response to HB.1)

The Alive reply message has one field:

Variable Fld Type Comments
uniqueId 8 basic type (0-3,9,10) The unique message id (Frame 5) of the sender for which this is the reply.