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<== Date ==> <== Thread ==>

Subject: Re: Problem talking CA across two CPUs in same crate???
From: "Leonard J. Reder" <[email protected]>
To: "Ernest L. Williams Jr." <[email protected]>
Cc: EPICS Tech-Talk <[email protected]>
Date: Fri, 24 Aug 2001 15:53:04 -0700
Very good thank you much.  I set the EPICS_CA_ADDR_LIST variable
in VxWorks and the PVs in the sequencer appear to be connecting.

Thanks,

Len

"Ernest L. Williams Jr." wrote:
> 
> Hi,
> 
> Given that two IOCs need to talk with each other they could each  "CA
> client" just as your SUN workstation becomes a client.
> 
> Now you must define for the IOC the EPICS_CA_ADDR_LIST environment variable.
> 
> This could be done in the resource.def file as follows:
> # add the following line
> EPICS_CA_ADDR_LIST      DBF_STRING     <IP Address of the IOC you want to
> talk to>
> 
> OR
> you could add a putenv statement in your st.cmd file as follows:
> putenv (" EPICS_CA_ADDR_LIST  = <IP Address of the IOC you want to talk to>
> ")
> 
> Hope this helps.
> 
> Thanks,
> *******************************************
> Ernest L. Williams Jr.
> SNS Control Systems Group, ORNL
> 701 Scarboro Rd., MS 6473
> Oak Ridge, TN 37830
> Phone 865-241-9071
> e-mail: [email protected]
> Fax 865-241-6739
> ******************************************
> ----- Original Message -----
> From: "Leonard J. Reder" <[email protected]>
> To: "EPICS Tech-Talk" <[email protected]>
> Sent: Friday, August 24, 2001 12:41 PM
> Subject: Problem talking CA across two CPUs in same crate???
> 
> > Hello,
> >
> > I am using EPICS R3.13.3 and I am using the sequencer.  There are
> > two Motorola PPC boards in my configuration.  One of which has
> > a sequencer within it (call it CPU1) and the other has PMAC
> > motor control (call it CPU2).  It appears that the sequencer
> > works fine with recorders within CPU1.  But for some reason
> > the sequencer process variables that are associated with
> > recorders in CPU2 cannot connect.  Both CPUs are plugged into
> > the same network also.
> >
> > Are there any ideas what could be wrong with my configuration.
> >
> > Oh yes I can get to all the process variables via the client
> > Sun workstation using caget, caput and camonitor calls.
> >
> > All replies would be greatly appreciated.
> >
> > Len
> >
> > --
> > ____________________________________________________
> > Leonard J. Reder
> > Jet Propulsion Laboratory
> > Interferometry Systems and Technology Section 383
> > Email: [email protected]
> > Phone (Voice): 818-354-3639
> > ____________________________________________________
> >

-- 
____________________________________________________
Leonard J. Reder
Jet Propulsion Laboratory
Interferometry Systems and Technology Section 383
Email: [email protected]
Phone (Voice): 818-354-3639
____________________________________________________


Replies:
RE: Problem talking CA across two CPUs in same crate??? Jeff Hill
References:
Problem talking CA across two CPUs in same crate??? Leonard J. Reder
Re: Problem talking CA across two CPUs in same crate??? Ernest L. Williams Jr.

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