Hi Iain,
On 09/21/2017 12:45 PM, Iain Marcuson wrote:
> My software queries a status value from a sensor. I want to display the
> status as a string in my OPI. The status values are neither sequential
> nor zero-indexed. I tried to create an mbbi record with the *VL and *ST
> fields set to match the status string with the status value. CSS BOY,
> however, does not display the string matching the mbbi VAL number, but
> the *ST field corresponding to the VAL number. For example:
>
> Field(ONVL, 129)
> Field(ONST,"Done")
> Field(THVL,1)
> Field(THST,"Clearing")
>
> If the mbbi VAL field is 1, then CSS BOY will display "Done" as opposed
> to "Clearing".
>
> What is the preferred way of outputting a string with such an enum?
The mbbi record type is designed to compare the *VL fields against the
RVAL field, then it sets the VAL field to the index corresponding to the
matching *VL field. The string representation of the VAL field will then
be the string in the corresponding *ST field, and the alarm severity of
the record is set from the corresponding *SV field.
How is this record connecting to your sensor? The device support for an
mbbi should be setting prec->rval (if you're providing your own device
support). If this mbbi is a soft record though (i.e. DSET is unset or
"Soft Channel" then you need to change it to be "Raw Soft Channel" — the
soft support reads an encoded index value from the INP link directly
into VAL and skips the comparisons with the *VL fields, whereas the raw
soft support reads the INP link value into RVAL and goes through the *VL
comparisons.
HTH,
- Andrew
--
Arguing for surveillance because you have nothing to hide is no
different than making the claim, "I don't care about freedom of
speech because I have nothing to say." -- Edward Snowdon
- Replies:
- Re: Enumerated Strings in CSS BOY Kasemir, Kay
- References:
- Enumerated Strings in CSS BOY Iain Marcuson
- Navigate by Date:
- Prev:
Enumerated Strings in CSS BOY Iain Marcuson
- Next:
Re: Enumerated Strings in CSS BOY Kasemir, Kay
- Index:
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
<2017>
2018
2019
2020
2021
2022
2023
2024
- Navigate by Thread:
- Prev:
Enumerated Strings in CSS BOY Iain Marcuson
- Next:
Re: Enumerated Strings in CSS BOY Kasemir, Kay
- Index:
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
<2017>
2018
2019
2020
2021
2022
2023
2024
|