Use fnUpdate in a page with multiple Datatables

I am wondering if it is possible to use fnUpdate or any other method, such as fnGetData or so, in a page with multiple datatables. (2 in my case).

I create them using the same selector for both tables:

    var tablePlugin = $('.tlmTable').dataTable(options);

I want fnUpdate just to operate over the current table I am performing the action ignoring the other table.

Is it possible?
Thanks.