Point Grey Flea3 GigE Technical Reference
2 Flea3 GigE Installation
range so that the camera sends data as a multicast. As long as switches in the path between the sender and receivers
support and are configured for multicasting, multiple receivers can listen to the data stream from the camera.
Multicast addresses are between 224.0.0.0 and 239.255.255.255.
For more information on multicast address assignments, see
http://tools.ietf.org/html/rfc3171
To control SCDA use:
n
GenICam—GevSCDA in the
Transport Layer Control
or
GigE Vision Bootstrap Registers
.
2.4.4.2
Heartbeat
The heartbeat is a mandatory GigE Vision feature to monitor the connection between an application and the camera.
The application must continually reset the heartbeat timer, or the camera will assume an error has occurred and shut
down the connection.
In general, the FlyCapture API manages the heartbeat at a low level; however the following two features are
controllable: Heartbeat Timeout and Heartbeat Disable.
Heartbeat Timeout
Heartbeat timeout is the time, in milliseconds, that the camera waits between resets from the application. Heartbeat
timeout can be set between 500 ms and 10 seconds. The default setting is 3000 ms (3 seconds). If there is no
communication between the camera and the application for longer than the timeout value, the connection is shut
down.
To control Heartbeat Timeout use:
n
GenICam—GevHeartbeatTimeout in the
Transport Layer Control
or the
GigE Vision Bootstrap Registers
.
n
FlyCapture API—The FlyCapture SDK supports configuring heartbeat timeout. For more information, consult the
FlyCapture SDK Help.
Heartbeat Disable
The heartbeat is enabled by default. Heartbeat disable allows the heartbeat function in the camera to be disabled.
To disable Heartbeat use:
n
GenICam—GevGVCPHeartbeatDisable in the
Transport Layer Control
or the
GigE Vision Bootstrap Registers
.
n
FlyCapture API—The FlyCapture SDK supports configuring heartbeat timeout. For more information, consult the
FlyCapture SDK Help.
Revised 10/29/2013
Copyright ©2010-2013 Point Grey Research Inc.
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