The Heartbeat message maintains session connectivity.
Message Direction: Bidirectional
| Tag | Field Name | Type | Req'd | Description |
|---|---|---|---|---|
| Message Header | Y | MsgType = 0 | ||
| 112 | TestReqID | String | C | Required when responding to Test Request |
| Message Trailer | Y |
Normal Heartbeat:
8=FIX.4.2|9=50|35=0|49=T4Example|56=T4|50=T4FIX|52=20120905-17:54:49.359|10=123|
Test Request Response:
8=FIX.4.2|9=100|35=0|49=T4|56=T4Example|50=TraderName|52=20120905-18:09:12.103| 112=treqid.09.05.2012-13.09.12|10=234|