Experimental Physics and
Industrial Control System

Emmanuel Mayssat <[email protected]> · Thu, 01 Oct 2009 21:12:18 -0700

Hello,

I hope you are all doing well.
I may have asked this question a months ago, but ...

I have the following DB processing scheme

AO (high level PV name) --> AO ( hardware PV name) ---> hardware ---> AI

(hardware PV name) --> AI (high level PV name)

When I set the first AO, the value is propagated to the other one (on

OUT field), then to the hardware and finally read back on both of the AI.

The issue is that when I reboot the IOC, the first AO is reset to 0.

Ultimately I would like it to be set at current value (read hardware

first and then set value accordingly).

With AI with a PINI=YES, I can see what the hardware value in both AI.
How can I load the CURRENT hardware value in the 1st AO at init?

( I use base < 3.14.11, so not so easy to use multilayer aliasing!!)
--------------------------------------------

Additionally could someone give an example where the DOL + OMSL field

are commonly used?

I wonder what the practical purposes of those fields are.

Regards,
--
Emmanuel

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System