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Subject: Newbie question: example Application
From: John Dobbins <jad@lns.cornell.edu>
To: tech-talk@aps.anl.gov
Date: Fri, 11 Jan 2002 14:54:47 -0500
Dear All,

I have just installed EPICS software (3.13.5) and built the example application. The iocCore runs and I can communicate with it via the console. The client, caExample, runs but is unable to communicate with the iocCore.

On the host in response to "caExample aiExample" I get the message:

CA.Client.Diagnostic..............................................
Message: "User specified timeout on IO operation expired"
Severity: "Warning" Context: "ca_pend_io failure"
Source File: ../caExample.c Line Number: 20
..................................................................
CA.Client.Diagnostic..............................................
Message: "The request was ignored because the specified channel is disconnected"
Severity: "Error" Context: "ca_get failure"
Source File: ../caExample.c Line Number: 21


The iocCore is on a protected subnet and I am hypothesizing that this may be why the client is unable to communicate with it. I tried to follow instructions in the Channel Access Reference Manual, section 1.3.2, Configuring CA for Multiple Subnets. However when I add the line

EPICS_CA_ADDR_LIST DBF_STRING 128.84.44.84 192.168.213.148

to resource.def ( used by iocInt ) I get an error during iocInit:

Starting iocInit
filename="../iocInit.c" line number=599
Missing resource data type field for resource=128.84.44.84 in file=resource.def
value = 0 = 0x0

Any advice would be appreciated.



John Dobbins

Cornell University - Lab of Nuclear Studies
tele:    607-255-5740
fax:     607-254-4552



Replies:
RE: Newbie question: example Application Jeff Hill

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