I just found a CAR related to this problem. (CAR 8843. No action planned. CAR Closed)
The C:B.Variables are of the type OUTPUT, hence the om-error -3.
The only question I have for FOXBORO is: WHY IS IT OF THE TYPE OUTPUT???
> -----Original Message-----
> From: Schouten, Frits JF
> Sent: Thursday, June 15, 2000 9:53 AM
> To: 'Foxboro DCS Mail List'
> Subject: OM-List question.
>
> Hello peeps,
>
> I've run into a problem with OM-lists.
>
> I'm in the process of replacing Global Variables with Compound:Block.Variables.
> Up till now that has not been a problem. OM-lists were not involved so far.
>
> The 'C' program I'm now changing is using OM lists to exchange data between Global
>Variables and the Program.
>
> Problem is that, when writing to the list, I'm getting an OM-error -3 returned /*
>Write attempt to secured variable */ on the C:B:Variable.
> Just for the test I changed the list point to a real input on a CALC block and that
>goes fine.
>
> In 'Select' I have no problems changing the C:B:Variables.
> I can write to the C:B.Variables from a 'C' program using 'set_confirm' with no
>problems at all.
> I can read/write C:B.Variables using 'omget' and 'omset' from a vt100 again with no
>problems.
>
> Any ideas of what I'm doing wrong regarding C:B.Variables in an OM-list?
>
> Regards,
>
> Frits Schouten
> BHP-NZSteel
>
>
>
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