There is an excellent document in Developer Zone to help set up the Sony XC-55 for asynchronous reset operations and also advice on writing a basic LabVIEW application.
The following link takes you to this page:
http://zone.ni.com/devzone/conceptd.nsf/2d17d611efb58b22862567a9006ffe76/b8dc31dedf4afaf086256a930078dd78?OpenDocument
In this example, the image acquisition board is used to generate a trigger signal and then reset the camera. In your application this trigger pulse would be provided by your function generator. This will simplify the software that you need to write, but care will need to be taken over the cabling.
This document also specifically discusses how to cable the camera to the PCI/PXI-1409 image acquisition board but the principles remai
n the same when using the PCI/PXI-1408. Be aware that the external cabling on a PCI-1408 differs from that on the PCI-1409 - these use different edge connectors.
Jeremy