Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Fri, 28 Aug 2015 10:18:56 -0500

Hi,

On 08/27/2015 11:31 PM, Deepika Thakur wrote:
> Please guide how to resolve this following "VIrtual Circuit Disconnect "
> warning :
> 
> 
> [srk@srk iocmyExample]$ caget ADC_CARD:CHANNEL1-16:ADCData
> Read operation timed out: some PV data was not read.
> ADC_CARD:CHANNEL1-16:ADCData 72 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
> 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
> 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
> CA.Client.Exception...............................................
>     Warning: "Virtual circuit disconnect"
>     Context: "op=0, channel=ADC_CARD:CHANNEL1-16:ADCData,
> type=DBR_TIME_CHAR, count=72, ctx="localhost:5064""
>     Source File: ../getCopy.cpp line 92
>     Current Time: Fri Aug 28 2015 09:52:41.966386036
> ..................................................................

That message usually means that the IOC or CA server died before the
client could disconnect from it properly; it is very unusual for caget
to show this message, but should be benign. Is the server an IOC, or
something based on libcas?

- Andrew

-- 
Light thinks it travels faster than anything but it is wrong.
No matter how fast light travels, it finds the darkness has
always got there first, and is waiting for it.
    -- Terry Pratchett, Reaper Man

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System