Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Thu, 14 Aug 2014 13:25:22 -0500

Oops, my bad, I mis-read the dbCommon.dbd file, UDF /is/ writable, but
writing to the UDF field of an ao record has little effect:

tux% caput anj:ao.UDF 1
Old : anj:ao.UDF                     0
New : anj:ao.UDF                     0

I think what happened is that the record processed as a result of the
put [since UDF is marked pp(TRUE)], and the process routine overrode the
1 that I set the UDF field to with a 0.

I /can/ set UDF to make an ai record go into UDF/INVALID alarm, but that
doesn't work on an ao record, where I have to write NaN to the VAL field
instead (the UDF field acts more like an output for an ao record).

My apologies to Andrew Starritt who was evidently using an ai record,
whereas Kellee and I were both using ao records.

- Andrew

On 08/14/2014 11:55 AM, Eric Norum wrote:
> 
>         ????
>         RRM says otherwise:
> 
> 
> 
>         Field Summary
> 
> Field	Type	DCT	Initial	Access	Modify	Rec Proc Monitor	PP
> STAT	GBLCHOICE	No	UDF_ALARM	Yes	No	Yes	
> SEVR	GBLCHOICE	No	INVALID_ALARM	Yes	No	Yes	
> NSTA	GBLCHOICE	No	No Alarm	Yes	No	No	
> NSEV	GBLCHOICE	No	No Alarm	Yes	No	No	
> ACKS	GBLCHOICE	No	No Alarm	Yes	No		 
> ACKT	GBLCHOICE	No	Yes	Yes	No		 
> UDF	UCHAR	No	1	Yes	Yes	No	Yes
> 
> 
> 
> 
> 
> 
> On Aug 14, 2014, at 9:35 AM, Andrew Johnson <[email protected]
> <mailto:[email protected]>> wrote:
> 
>> Hi Kellee,
>>
>> The UDF field is not writeable; you're not doing anything wrong, I don't
>> know how Andrew Starritt achieved the effect he talked about.
>>
>> If you want to put an ao record into a UDF alarm state, put a NaN value
>> into its VAL field:
> 
> -- 
> Eric Norum
> [email protected] <mailto:[email protected]>
> 
> 
> 
> 

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System