Experimental Physics and
Industrial Control System

Hello Jan,

What is your terminator?

I tried to reproduce your problem but everything seems to work.

BTW: There are some other ways:

1. Use 3-state mbbi and %{off|on |INTERLOCK} format.

2. Use default value assignment (relatively new feature):

 in "get ch\$1 status\r\r\n = %?{off|on }%(\$2){INTERLOCK|}";

If the device sends "off" or "on ", %(\$2){INTERLOCK|} results in 1 (Ok).

Dirk

On 01.04.2015 15:51, ruzickaj wrote:

Hi all,
I have a device that sends a response on command
"on/off" (requested value) or "INTERLOCK").
I use a @mismatch exception handler and redirection to record in
order to catch this "INTERLOCK" string. After that I turn on or off the
LED widget
(Interlocked or Non-Interlocked). When I started IOC it gave me a buffer
overflow.
Buffer overflow is appeared after adding arg: (\$2).

DB and proto file are following:


DB:


# requested value laser state
record(bi, "$(device):StatEnable")
{
     field(DESC, "Laser Enabled")
     field(DTYP, "stream")
     field(INP,  "@fibotecLtbis.proto
get_enable($(channel),$(device):StatEnableInterlock) $(port)")
     field(SCAN, "1 second")
     field(ZNAM, "Off")
     field(ONAM, "On")
     field(PINI,"YES")

}
#makro
#channel=1
#device=name:ch1

#
#Catching INTERLOCK message


record(bi, "$(device):StatEnableInterlock")
{
     field(DESC, "Laser Enabled")
     field(ZNAM, "INTERLOCK")
     field(ONAM, "Ok")
     field(VAL, "1")
     field(PINI,"YES")

}

Proto file:

get_enable  { out "get ch\$1 status"; in "get ch\$1 status\r\r\n =
%{off|on } ";
@mismatch {in "get ch\$1 status\r\r\n%(\$2){INTERLOCK}";}}


Thanks Jan

Replies:

Re: Stream device problem with redirection in @mismatch ruzickaj

References:

Stream device problem with redirection in @mismatch ruzickaj

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