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Added connection management text

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git-svn-id: https://subversion.xor.aps.anl.gov/synApps/areaDetector/trunk@15994 dc6c5ff5-0b8b-c028-a01f-ffb33f00fc8b
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rivers
2013-02-26 21:19:51 +00:00
parent 03f5e80136
commit 7ca94c5c08
1 changed files with 21 additions and 5 deletions
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documentation/prosilicaDoc.html
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@@ -24,7 +24,7 @@
<li><a href="#Driver_parameters">Prosilica specific parameters</a></li>
<li><a href="#Configuration">Configuration</a></li>
<li><a href="#MEDM_screens">MEDM screens</a></li>
<li><a href="#Future">Future enhancements</a></li>
<li><a href="#ConnectionManagement">Connection management</a></li>
</ul>
<h2 id="Overview">
Overview</h2>
@@ -901,11 +901,27 @@
<h3>
epics_ad_display.pro</h3>
<img alt="prosilica_tvscl.jpg" src="prosilica_tvscl.jpg" /></div>
<h2 id="Future">
Future enhancements</h2>
<h2 id="ConnectionManagement">
Connection management</h2>
<p>
Work is needed on connection management. If the camera is unplugged or powered off
when the areaDetector driver is running it does not gracefully recover.
The Prosilica driver implements connection management. Cameras do not need to be
accessible when the IOC starts up, and can be power-cycled or disconnected and reconnected
from the Ethernet without restarting the IOC.</p>
<p>
Whenever a new camera is detected on the network the Prosilica library issues a
callback to the driver. If the driver is not currently connected to a camera it
will attempt to connect when receiving the callback. This mechanism should work
no matter how the camera is identified in the startup script, i.e. by Unique ID,
IP address, or IP name. It is also possible to manually connect and disconnect the
camera by using the $(P)$(R)AsynIO.CNCT PV, which is labeled "Connect" and "Disconnect"
on the medm screen.</p>
<p>
If the camera is not accessible when the IOC boots, or is power-cycled then the
EPICS output records may not match the actual camera settings and readbacks. They
can be made to agree by processing the output record, e.g. by pressing Enter or
Return in the medm output widget. In the future this may be improved by sending
all of the EPICS settings to the camera when it connects, though it is not clear
if this would always be the desired behavior.
</p>
</body>
</html>