Ramp-Soak cycles

[Vinod_Mathews]

I am using Fild Point with Lookout4.0.
The customer requires different types of Ramp and Soack sequences of
Temperature Set points. The Set points control the temp. of a furnace
through the PID object. Currently I am importing a very large
spredasheet file with the various set points of temperature stored (for
every 30 second) and reading it through cursor as the Set Point in the
PID object. This is difficult for the user as he has to create
spreadsheet files each time his ramp/soak cycles change.
Is there a better way to do this?

Thanx
Vinod Mathews
capsys@vsnl.com


[See first answer for additional information]

[Vinod_Mathews]

[Attachment(s) for question]

[Khalid]

Looks like you import the spreadsheet into a DataTable. If that's the case,
you don't need to go back to the spreadsheet every time to change a setpoint.
You can have a panel with PushButtons (in Digital display format) which
are connected to to each cell of the DataTable.

If the table is too big for you to have so many pots connected to each cell,
you can have two Pots to select the current row and column (and hence the
cell) and a third Pot to write the SetPoint. Or, you can do it one row at
a time too with one Pot for selecting the row (connected to the Cursor datamember).
Anyways, you get the idea....

Good luck!

Khalid

-------------
Vinod Mathews wrote:

I am using Fild Point with Lookout4.0. The customer requires different types
o
f Ramp and Soack sequences of Temperature Set points. The Set points control
the temp. of a furnace through the PID object. Currently I am importing a
very large spredasheet file with the various set points of temperature stored
(for every 30 second) and reading it through cursor as the Set Point in the
PID object. This is difficult for the user as he has to create spreadsheet
files each time his ramp/soak cycles change. Is there a better way to do
this?

Thanx
Vinod Mathews
capsys@vsnl.com
--------------

[Vinod_Mathews]

Thank-you for the solution to creating Ramp-Soak cycles using the Integral and
sequencer objects. The output of the integral object could easily be used as the
setpoint in the PID object thus the Set-point is recalculated every second providing an
extremely good control over the process. Different Ramp or Soak cycles can be provided
using the sequencer object.

Earlier I was using a spreadsheet to import the different Setpoints into the PID Object
which was very cumbersome and not at all user friendly as the operator had to create
huge excel files depending on the program required.

Thanks once again

Regard
Vinod Mathews



Khalid Ansari wrote:

> Looks like you import the spreadsheet into a DataTable. If that's the case,
> you don't need to go back to the
spreadsheet every time to change a setpoint.
> You can have a panel with PushButtons (in Digital display format) which
> are connected to to each cell of the DataTable.
>
> If the table is too big for you to have so many pots connected to each cell,
> you can have two Pots to select the current row and column (and hence the
> cell) and a third Pot to write the SetPoint. Or, you can do it one row at
> a time too with one Pot for selecting the row (connected to the Cursor datamember).
> Anyways, you get the idea....
>
> Good luck!
>
> Khalid
>
> -------------
> Vinod Mathews wrote:
>
> I am using Fild Point with Lookout4.0. The customer requires different types
> of Ramp and Soack sequences of Temperature Set points. The Set points control
> the temp. of a furnace through the PID object. Currently I am importing a
> very large spredasheet file with the various set points of temperature stored
> (for every 30 second) and reading it through cursor as the Set Point
in the
> PID object. This is difficult for the user as he has to create spreadsheet
> files each time his ramp/soak cycles change. Is there a better way to do
> this?
>
> Thanx
> Vinod Mathews
> capsys@vsnl.com
> --------------

[Vinod_Mathews]

Thank-you for the solution to creating Ramp-Soak cycles using the Integral and
sequencer objects. The output of the integral object could easily be used as the
setpoint in the PID object thus the Set-point is recalculated every second providing an
extremely good control over the process. Different Ramp or Soak cycles can be provided
using the sequencer object.

Earlier I was using a spreadsheet to import the different Setpoints into the PID Object
which was very cumbersome and not at all user friendly as the operator had to create
huge excel files depending on the program required.

Thanks once again

Regard
Vinod Mathews



Khalid Ansari wrote:

> Looks like you import the spreadsheet into a DataTable. If that's the case,
> you don't need to go back to the
spreadsheet every time to change a setpoint.
> You can have a panel with PushButtons (in Digital display format) which
> are connected to to each cell of the DataTable.
>
> If the table is too big for you to have so many pots connected to each cell,
> you can have two Pots to select the current row and column (and hence the
> cell) and a third Pot to write the SetPoint. Or, you can do it one row at
> a time too with one Pot for selecting the row (connected to the Cursor datamember).
> Anyways, you get the idea....
>
> Good luck!
>
> Khalid
>
> -------------
> Vinod Mathews wrote:
>
> I am using Fild Point with Lookout4.0. The customer requires different types
> of Ramp and Soack sequences of Temperature Set points. The Set points control
> the temp. of a furnace through the PID object. Currently I am importing a
> very large spredasheet file with the various set points of temperature stored
> (for every 30 second) and reading it through cursor as the Set Point
in the
> PID object. This is difficult for the user as he has to create spreadsheet
> files each time his ramp/soak cycles change. Is there a better way to do
> this?
>
> Thanx
> Vinod Mathews
> capsys@vsnl.com
> --------------