Experimental Physics and
Industrial Control System

haquin <[email protected]> · Tue, 24 Feb 2009 16:00:59 +0100

Thank you Matthieu, for your solution, I've just tried it.

Eric,

In my genSub, I will analyse the bits of a Defect word, and translate

each bit field in a string, then I output an array where the strings are

available for operator display.

Implementation with several mbbi records cannot fulfill all my needs, so

I do the analysis with genSub.

All this to explain I am not concatenating several mesages so your

proposal is not adequate, thanks anyway.

However, don't hesitate if you have any other suggestion of implementation.

Best Regards.

 Eric Norum a écrit :

Are you trying to just send and print the concatenated error message

strings?

Perhaps something like this is adequate?
    FTVN: CHAR
    NOVN: 120

    int nleft = precord->novn;
    char *np = (char *)precord-:>valn;
    int n;

    n = epicsSnprintf(np, nleft, "Defect string 1. ");
    nleft -= n;
    np += n;
    .
    .
    n = epicsSnprintf(np, nleft, "Defect string 2.  ");
    nleft -= n;
    np += n;
    .
    .
    .

haquin wrote:

Hi all,

I have configured a gensub record to output a string array but this

doesn't work.

I set the following genSub fields:
FTVN:STRING
NOVN:12
in my process function I do the following:
 sprintf ((char*)precord->valn, "Defect String 1");
 sprintf ( (char*)(((char**)(precord->valn))+1), "Defect String 2");
When I execute the IOC, the output is the following:
epics> dbgf IOCASTE-TST:ProcessDynamicModbusTable.VALN
DBR_STRING:          DefeDefect String 2
the second string has overwritten the first one.
It seems that there only one string
thanks in advance for your help.

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fn:Christophe Haquin
n:Haquin;Christophe
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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System