Heartbeat(0)

When either end of a FIX connection has not sent or received any data for HeartBtInt seconds (as specified in the Logon(A) message), it will transmit a Heartbeat(0) message. When either end of a FIX connection has not received any data for HeartBtInt seconds, it will transmit a TestRequest(1) message. If there is still no response, the session should be considered lost and corrective action should be initiated.

Arguments

Tag	Name	Type	Required	Comments
112	TestReqId	String	Varies	The identifier when responding to the Test Request(1) message. When not responding to a Test Request(1) message, this tag can be left out

Response

When the heartbeat has been received successfully, the server will echo back the request as confirmation.