Experimental Physics and
Industrial Control System

"Mark Rivers" <[email protected]> · Sun, 4 Apr 2010 22:52:35 -0500

Hi Geyang,

Is the IOC on your local subnet?  Is it the on the same computer running ImageJ?  

If either of those, you can probably not use a JCALibrary.properties file at all, because you should not need to set an explicit addr_list.  You don't need to set max_array_bytes for JCA, it automatically increases the value to match the size of the array on the server. Try deleting that file and see what happens.  

The final message was an OutOfMemoryError from the Java runtime.

Please send the complete error trace from Java, not just a screen shot of the last few lines.

Mark

________________________________

From: Silver [mailto:[email protected]]
Sent: Sun 4/4/2010 10:18 PM
To: tech-talk
Cc: Mark Rivers
Subject: ImageJ can't connect to EPICS PV

hi, mark:

  Sorry to disturb you again.
  I tried to use imageJ to show the figure of prosilica CCD, while it can't connect to EPICS PV with your plug-in for ImageJ.  I have created the <jre home>/lib/JCALibrary.properties as mentioned in you document like following:
gov.aps.jca.Context.addr_list=169.254.32.4
gov.aps.jca.Context.auto_addr_list=false
gov.aps.jca.Context.max_array_bytes=100000000
 the attache file is snapshot of screen. I can use caget to attach the PVs. I think the problem should be JCALibrary.properties file. I know less about JAVA, so please forgive my stupid questions.
 Thanks a lot for your help.

Best regards
Geyang  2010-04-05 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System