Experimental Physics and
Industrial Control System

Ralph Lange <[email protected]> · Wed, 24 Jun 2009 17:35:36 +0200

Hi Stewart,

shouldn't be a problem:

For the Channel Access protocol (that is between your IOCs) Jeff Hill

always makes sure its compatibility covers everything from the latest

EPICS version back to probably even late 3.12 (i.e. ~12 years back). We

try to make him drop support for the oldest versions once in a while,

with limited success.

Maybe two caveats:

The native Java versions of the CA libraries have a smaller

compatibility span.

Naturally, for using newer features (e.g. large array support) both

sides must be new enough to support it.

Cheers,
Ralph

On 24.06.2009 16:57 McLay,SA (Stewart) (ROE,UKATC) wrote:

I would like to ask a question about compatibility between IOC targets
running different versions of EPICS. Say I have a VME/vxWorks IOC
running EPICS version 3.13.10 and a Linux IOC running EPICS version
3.14.10. Would they be able to interface with each other? Could one IOC
read and write to EPICS records in the other IOC's database and vice

versa?

Best Regards,

Stewart

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System