Experimental Physics and Industrial Control System
On Friday 25 November 2005 10:45, Xu HuiJuan wrote:
> Hello,
> I use a simple CA get program to read data from the soft IOC. Several
> days ago, it worked well. But today when I executed this program, it
> did not work. The mistake is 'User specified timeout on IO operation
> expired'. I don't know what happen and wonder how to solve it.
> Thanks!
I would first check with the regular 'caget' program. If this works,
there is a problem with your program. Next check if the channel still
exists i.e. the IOC runs correctly. Then (if yes) check that the
network is ok by pinging the IOC. Assuming that goes through, check
that your EPICS_CA_ADDR_LIST and its relatives are set properly. (See
CA reference manual for details).
If you did all these things and it still doesn't work, ask again. It
helps if you provide EPICS base version and OS for both host and IOC as
well as what CA client you are using.
Ben
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