The Heartbeat monitors the status of the communication link and identifies when the last of a string of messages was not received.
Added in protocol FIX.2.7
See in: FIX.4.0, FIX.4.1, FIX.4.2, FIX.4.4, FIX.5.0, FIX.5.0SP1, FIX.5.0SP2, FIX.5.0SP2 EP240, FIXT.1.1.
| Field or Component | Name | Description | Is Required | Added | Is Deprecated |
|---|---|---|---|---|---|
| Block | StandardHeader | MsgType = 0 | Y | FIX.2.7 | |
| 112 | TestReqID | Required when the heartbeat is the result of a Test Request message. | FIX.4.0 | ||
| Block | StandardTrailer | Y | FIX.2.7 |