Experimental Physics and
Industrial Control System

[email protected] (Rozelle Wright) · Mon, 16 Mar 1998 16:43:00 -0700

> From [email protected] Mon Mar 16 16:32 MST 1998
> Date: Mon, 16 Mar 1998 18:36:24 -0500 (EST)
> X-Sender: [email protected]
> To: tech talk <[email protected]>
> Subject: record linking question
> Mime-Version: 1.0
> X-Lines: 27
> 
> Question:
> 
> Given the following record link:
> 
>       Record 1                       Record 2
>   ----------------                -------------
>  |                |              |             |
>  | Scan = passive |              | Scan = .5   |
>  |                |              |             |
>  |                |      PP      |             |
>  |                |------------->|INP          |
>  |                |              |             |
>  |                |              |             |
>   ----------------                -------------
> 
> In this case when record 2 processes, record 1 also processes.
> 
> If the scan field of record 1 was changed to 0.1 at runtime,
> would record 1 be processed independently of record 2? The question is
> actually, may the scan field be changed from passive to periodic
> and back again at runtime?
> 
> John Sinclair
> 423-576-6362
> 423-574-1268 (fax)
> [email protected]
> 
> 
Yes,
the PP property of the link has an effect only if the scan field of record 1 
has the value Passive and it is certainly possible to change the scan fields
at runtime.

---------------------------------------------------------
|                                                       |
|Rozelle Wright              Phone (505) 667-4804       |
|Los Alamos Natl Labs LANSCE-8  FAX (505) 665-5107      |
|PO Box 1663 MS-H820         Group Office (505) 667-6087|
|Los Alamos, NM 87545        email : [email protected]   |
|                                                       |
---------------------------------------------------------

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System