Experimental Physics and
Industrial Control System

On 04/05/2016 07:01, Silver wrote:

Also I noticed if I use caput to write a value through ca gateway, like following:

geyang@cow1:~# caput inet:setai 5
Old : inet:setai 6
New : inet:setai 6 

although the value was written correctly, but the display is not as common here. Anyone notice this?

Hi Geyang,

For write access through a GW to work, two layers of access security have to be configured correctly:

1. The GW has to allow write access from the external client - this is done in the GW's access file.
2. The IOC has to allow write access from the GW - this is done in the IOC's access security file.

The command line tool "cainfo" shows the current access rights for a client.
Can you run "cainfo inet:setai" on cow1? What access rights does it show?

Cheers,
~Ralph