Experimental Physics and
Industrial Control System

Yes, I tried that.
and also setting the VAL field.

I have also attempted to initialise the record from
the value read back from the device - but unfortunately that 
doesn't work either as the input is asynchronous.

Pete.
> 
> Dear Pete;
> 
> Have you try to use closed_loop mode with constant DOL such as the
> following.
> 
> record(ao, "$(device):SETSIZE") {
>     field(DESC, "Pump Size")
>     field(DTYP, "ornlSerial")
>     field(OUT,  "@digitel mpc size p=1 u=$(port) m=$(unit) 
> p1=$(pump)")
>     field(PINI, "YES")
>     field(DOL,  "100.0")
>     field(OMSL, "closed_loop")
>     field(EGU,  "l/s")
>     field(DRVL, "0.0")
>     field(DRVH, "1200.0")
>     field(LOPR, "0.0")
>     field(HOPR, "1200.0")
>     field(PREC, "0")
> }
> 
> -------------------------------
> 
> Kukhee Kim
> Instrument & Control, KSTAR
> Korea Basic Science Institute
> 52 Yeoeun-dong, Yusung-gu, Daejeon 305-333
> Korea
> Email: [email protected]
> Tel: +82 42 870 1616     Fax: +82 42 870 1609      Cell: +82 
> 17 513 4849
> 
>  
> 
> 
> -----Original Message-----
> From: Owens, PH (Peter) [mailto:[email protected]] 
> Sent: Saturday, April 17, 2004 12:11 AM
> To: [email protected]
> Subject: Initialising an ao record from a constant DOL
> 
> I'm trying to initialise an analog output record
> by putting a constant in the DOL field (see below).
> 
> But the VAL field gets set to zero rather than 100.
> The record does process and outputs this zero.
> 
> I can work around this by Initialising from another record
> using clsed loop mode but it does seem to be a bit of a cludge
> (see commented out lines).
> 
> What am I doing wrong?
> 
> record(ao, "$(device):SETSIZE") {
>     field(DESC, "Pump Size")
>     field(DTYP, "ornlSerial")
>     field(OUT,  "@digitel mpc size p=1 u=$(port) m=$(unit) 
> p1=$(pump)")
>     field(PINI, "YES")
>     field(DOL,  "100.0")
> #    field(DOL,  "$(device):INITSIZE")
> #    field(OMSL, "closed_loop")
>     field(EGU,  "l/s")
>     field(DRVL, "0.0")
>     field(DRVH, "1200.0")
>     field(LOPR, "0.0")
>     field(HOPR, "1200.0")
>     field(PREC, "0")
> }
> record(ai, "$(device):INITSIZE") {
>     field(VAL, "200.0")
> }
> 
> Pete
> ---------------------------------------
> mailto:[email protected]
> phone:+44 (0)1925 603974
> fax:    +44 (0)1925 603124
> 
> CLRC
> Daresbury Laboratory
> Keckwick Lane
> Warrington
> WA4 4AD
> UK
> 
> 
> 

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Re: Initialising an ao record from a constant DOL Bob Dalesio

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