from my Heidenhain experience
every cell in the tool table is mapped to system variables
which are loaded when the tool table is loaded

because of this i could write a row of cells in the tool table
and use them for whatever i wanted

example
cell 1= tool pod, cell 2 = tool diamets,
cell 3 = favorite color, cell 3 = flow meter set point

for whatever i wanted

simple, & flexible

regards Tomp tjtr33

On 11/26/2014 01:57 PM, Sebastian Kuzminsky wrote:
> On 11/26/2014 11:58 AM, andy pugh wrote:
>> On 26 November 2014 at 18:00, Eric H. Johnson <ejohn...@camalytics.com> 
>> wrote:
>>
>>> I need to set a couple outputs based on which tool is selected. I only have
>>> 3 tools. I expect others have run into this issue. So far the easiest way I
>>> see is to convert iocontrol.0.tool-number into a float and then use
>>> comparators on that value to set the states of my outputs.
>>
> ...
>>
>> This seems like a case where an extra field in the tool database would
>> be rather handy.
>
> How would this extra field in the tool db be exposed in HAL?  Wouldn't
> that require changes to IO?
>
>


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