The Heartbeat monitors the status of the communication link and identifies when the last of a string of messages was not received.
The heartbeat format is as follows:
Heartbeat
|
Tag |
Field Name |
Req’d |
Comment |
|
|
Standard Header |
Y |
MsgType = 0 |
|
112 |
TestReqID |
N |
Required when the heartbeat is the result of a Test |
|
|
Standard Trailer |
Y |
|
FIX message example:
8 BeginString = FIX.4.2
9 BodyLength = 60
35 MsgType = 0 "Heartbeat"
49 SenderCompID = CQGTEST
56 TargetCompID = SERVERTEST
34 MsgSeqNum = 523
52 SendingTime = 20131122-19:15:20.453
10 CheckSum = 178