Experimental Physics and
Industrial Control System

"Jeff Hill" <[email protected]> · Wed, 5 Dec 2007 08:57:46 -0700

Robert,

> Request from 128.95.181.18:33089 => cmmd=13

>From here (based on cmmd=13) it appears that you might have it configured so
that the UDP beacon protocol is being sent to a CA server's UDP port (to a
CA PV name directory server).

Have a look in the manual at EPICS_CAS_BEACON_PORT (which defaults to
EPICS_CA_REPEATER_PORT).

Jeff

> -----Original Message-----
> From: Robert Emery [mailto:[email protected]]
> Sent: Tuesday, December 04, 2007 3:43 PM
> To: Jeff Hill
> Cc: [email protected]
> Subject: Re: Multiple IOC
> 
> Jeff,
> 
> This worked.  It did not seem to matter if I set the
> EPICS_CAS_SERVER_PORT = 5071 or not.  It worked either way.
> 
> I did get errors on both IOC's though.  They were basically the same
> whether I configured the EPICS_CAS_SERVER_PORT
> 
> Errors for IOC on default Port
> 
> pics> CAS: request from 128.95.181.18:33089 => "invalid
> (damaged?) request code from UDP"
> CAS: Request from 128.95.181.18:33089 => cmmd=13 cid=0xa type=11
> count=5071 postsize=0
> CAS: Request from 128.95.181.18:33089 =>  available=0x805fb512
> N=0 paddr=(nil)
> CAS: invalid (damaged?) UDP request from 128.95.181.18:33089 ?
> 
> Errors for IOC's on Port 5071
> 
> epics> CAS: request from 128.95.181.18:33092 => "invalid
> (damaged?) request code from UDP"
> CAS: Request from 128.95.181.18:33092 => cmmd=13 cid=0xa type=11
> count=5064 postsize=0
> CAS: Request from 128.95.181.18:33092 =>  available=0x805fb512
> N=0 paddr=(nil)
> CAS: invalid (damaged?) UDP request from 128.95.181.18:33092 ?
> 
> 
> I also tried Andrews suggestion of not changing the port numbers on
> either IOC but then my edm screen would reconnect to one but not both
> IOC's if it became disconnected.
> 
> My intention is to be able to modularize my control processes to aid in
> troubleshooting and to have the flexibility to spread out processing if
> needed by moving IOC's between hardware.  Is there a better way of doing
> this?
> 
> Thanks
> 
> 
> 
> 
> Jeff Hill wrote:
> > For the IOC operating on the default port set...
> > EPICS_CA_ADDR_LIST=nnn.nnn.nnn.nnn:5071
> >
> > For the IOC operating on 5071 port set...
> >
> > EPICS_CAS_SERVER_PORT = 5071
> > EPICS_CA_ADDR_LIST=nnn.nnn.nnn.nnn:5064
> >
> >
> >> -----Original Message-----
> >> From: [email protected] [mailto:tech-talk-
> [email protected]]
> >> On Behalf Of Robert Emery
> >> Sent: Tuesday, December 04, 2007 12:47 PM
> >> To: [email protected]
> >> Subject: Multiple IOC
> >>
> >> I have two IOC's running on one linux PC.  One is using the default
> >> ports and I changed the other's port using:
> >>
> >> EPICS_CA_REPEATER_PORT=5070
> >> EPICS_CA_SERVER_PORT=5071
> >>
> >>
> >>
> >> I have been able to get an edm screen to see pv's from both IOC's by
> >> changing the environment variable:
> >>
> >> EPICS_CA_ADDR_LIST=nnn.nnn.nnn.nnn nnn.nnn.nnn.nnn:5071
> >>
> >>
> >> I have not been able to get the two IOC's to see each others PV's.  Any
> >> ideas how I would be able to do this?
> >>
> >> Thanks
> >>
> >> Rob Emery
> >> UW Medical Center
> >>
> >
> >
> >
> >

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System