Experimental Physics and
Industrial Control System

"Pearson, MR \(Matthew\)" <[email protected]> · Fri, 15 Jun 2007 08:46:57 +0100

Hi Dirk,

Yes, that's the problem. It works fine now.

Cheers,
Matthew

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Dirk Zimoch
Sent: 15 June 2007 08:36
To: TechTalk EPICS
Subject: Re: protocol/database macro expansion problem

Hi Matthew,

The problem is the space. Write: setD($(P):P,$(P):I)

The reason is the way the string is parsed. I probably should ignore
spaces inside the ().

Dirk

Pearson, MR (Matthew) wrote:
> Hi,
> 
> I'm trying to get the following protocol function and record to work:
> 
> setD {
>    out "PID 1,%(\$1.VAL)f,%(\$2.VAL)f,%f"; }
> 
> record(ao, "$(P):D_S") {
>   field(DTYP, "stream")
>   field(OUT, "@ls340.proto setD($(P):P, $(P):I) $(PORT) $(ADDR)") }
> 
> but at IOC startup I get:
> 
> 2007/06/14 18:20:37.973 Businterface 'BL16I-EA-LS340-01:I)' not found 
> for 'BL16I-EA-LS340-01:D_S'
> 2007/06/14 18:20:37.973 BL16I-EA-LS340-01:D_S: Can't attach to bus
> BL16I-EA-LS340-01:I) -1
> 2007/06/14 18:20:37.976 BL16I-EA-LS340-01:D_S: Record initialization 
> failed Bad init_rec return value  PV: BL16I-EA-LS340-01:D_S ao: 
> init_record
> 
> 
> But if I only use the main PV name, and hard code the last part of the

> PV into the protocol file, so that I only have one macro, then this 
> works. eg.
> 
> setD {
>    out "PID 1,%(\$1:P.VAL)f,%(\$1:I.VAL)f,%f";
> }
> 
> record(ao, "$(P):D_S") {
>   field(DTYP, "stream")
>   field(OUT, "@lakeshore340.proto setD($(P)) $(PORT) $(ADDR)") }
> 
> but this isn't ideal because then two files are dependant on the last 
> part of the PV name.
> 
> Any ideas? Is it because I'm trying to expand two macros?
> 
> Cheers,
> Matthew
> 
> 

--
Dr. Dirk Zimoch
Computing and Controls
Paul Scherrer Institut
phone +41 56 310 5182
fax   +41 56 310 4413

<DIV><FONT size="1" color="gray">This e-mail and any attachments may contain confidential, copyright and or privileged material, and are for the use of the intended addressee only. If you are not the intended addressee or an authorised recipient of the addressee please notify us of receipt by returning the e-mail and do not use, copy, retain, distribute or disclose the information in or attached to the e-mail.
Any opinions expressed within this e-mail are those of the individual and not necessarily of Diamond Light Source Ltd. 
Diamond Light Source Ltd. cannot guarantee that this e-mail or any attachments are free from viruses and we cannot accept liability for any damage which you may sustain as a result of software viruses which may be transmitted in or with the message.
Diamond Light Source Limited (company no. 4375679). Registered in England and Wales with its registered office at Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom
</FONT></DIV> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System