Experimental Physics and
Industrial Control System

Werner Portmann <[email protected]> · Thu, 18 Apr 2002 19:16:22 +0200

dear EPICS gurus
(if somebody prefers to make the experience rather than reading
do first  dbLoadtemplate test1.subs
second    dbLoadtemplate test2.subs
the short files are at the end of this longer mail)
recentely I found a very strange behaviour of dbLoadtemplate.
For a special device the result of dbLoadtemplate had to look like:
  record(mbbo,"test:CON-FUNC") {
     field(ZSTR,""CURR:DC"")
     .....
It is important that there are 2 qoutation marks just one after
the other at the beginning and at the end. I found no other solution
than to have a template file with
    field(ZRST,"$(qm)CURR:DC$(qm)")
and in the substitution file I put
  qm = '\"'
This worked perfectely, the whole substituion file test1.subs is
at the end of this mail:
I got the request to add an other record, an easy job, I thought,
but ....
test2.subs is at the end of the mail, too
and the result of dbLoadtemplate:

in words: it did not substitute qm with " but with the

rest of the file!

(I put ">" to show that this is the output)

>.....

>

>
field(ZRST, ""'}

>

>{ NAME = X09LA-KCUR2

> GPNR = 11

> qm = '"CURR:DC"'}>

>

>{ NAME = X09LA-KCUR2

> GPNR = 11

> qm = '"")

>
field(ONVL, "1")

>....

After playing around I found no other solution than to have

2 dbLoadtemplates, each one loding one record.
Thanks for any hints
Werner
************** files ************
test1.subs
>file test.template {
>{ NAME    = X09LA-KCUR
>  ADDR    = L38940
>  GPNR    = 10
>  qm      = '\"'}
>}
test2.subs
>file test.template {
>{ NAME    = X09LA-KCUR
>  GPNR    = 10
>  qm	   = '\"'}
>
>{ NAME    = X09LA-KCUR2
>  GPNR    = 11
>  qm	   = '\"'}
>}
test.template
>record(mbbo,"$(NAME):CON-FUNC") {
>    field(ZRVL,"0")
>    field(ZRST,"$(qm)CURR:DC$(qm)")
>    field(ONVL,"1")
>    field(ONST,"$(qm)VOLT:DC$(qm)")
>}

--

Dr. Werner Portmann, SLS computing and controls

Paul Scherrer Institut, CH-5232 Villigen PSI

tel + 41- 56 3104061 fax + 41 - 56 310 4413

e-mail:
[email protected] http://people.web.psi.ch/portmann/

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System