The ASC model has been modified, and is ready for the 2f AS "WFS" centering.

The ADC inputs were made to be consistent with T1100472-v16.  The spare AS_D (also called AS_X in the model) channels were used, as well as 8 more that had previously been unused.  This means that any channels previously called AS_D no longer exist, as they have been replaced with the AS_A_RF90 channels.

So, the model now has 2 WFS demodulator blocks, AS_A_RF90 and AS_B_RF90.  The I outputs (pitch and yaw) are sent to the ASC input matrices.  Since these are 2f sensors, we can rotate all the signal into the I-phase, so the Q outputs are terminated in the model.  These have been put at the end of the matrix so that no channel numbers / names will have changed. 

It looks like the DC5 centering loop has always existed, and we just weren't using it, so I didn't add any filter banks for the control loops, nor did the output matrix change in the model.  Daniel has already added the DC5 control filters and the DC5 matrix column to the medm screens.

The model compiles, and has been checked in to the svn.  While I still have other ASC model modifications, this version should be ready for install during Tuesday maintenence if I don't get the other modifications done in time.