Reading Data from 1756-OF8H HART I/O Module

I need read advanced data to diagnostic from SVI-II positioner masoneilan with contrologix used 1756-OF8H hart. I used a board 1756-OF8H (hart) to read parameters from SVI-II (positioner masoneilan); right now only read primary variable (position), secondary variable (pressure supply). I need send universal commands hart from contrologix to SVI-II positioner.