Experimental Physics and
Industrial Control System

Hello Steve,

Are you sure that you do not want one record for each battery?

I would expect one bo record to switch one battery on or off:

record (bo, "Battery$(N)OnOff")
{
  field (DTYP, "stream")
  field (OUT,  "Battery.proto OnOff($(N)) dev”)
}

OnOff {
 Battery %{On|Off} \$1";
 in "OK";
 @mismatch { in "Error:%(Battery\$1Error)s”; }
}

(Disadvantage: Last error stays in error record when everything is OK.)

 in "%(Battery\$1Error){OK|Error: message1|Error: message2}";


Or do you select battery x out of n?

Dirk


On 17.09.2014 18:22, Goff, Steven J wrote:

Hello,

I am trying to understand how to setup a particular command in a
protocol file.

The command looks like this:

Battery On “number”

And the command returns either: “OK” or ”Error: err msg”.

I think my protocol file might look like this:

Battery

{

  Out “Battery On %d”;

}

And my db file would look like this:

Record (longin, “batteryOn”)

{

   Field(DTYP, “stream”)

   Field(INP, “myDev.proto Battery dev”)

}

How do I get the status that the command returns?

I want to do something like

Battery

{

   Out “Battery On %d”;

   In “%s”;

}

But I am already using an input for the battery number.  So how do I do
both?

Thanks In advance.

Steve Goff

References:

Stream device protocol files question? Goff, Steven J

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