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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.

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Arguments

TagNameTypeRequiredComments
112TestReqIdStringVariesThe identifier when responding to the Test Request(1) message. When not responding to a Test Request(1) message, this tag can be left out

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Response

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