Assuming that in your 9-digit number the first three digits represent MSB, these values have to be 000, 001 or 010 for the three banks each. LSB does not apply, so the middle group of three digits should be without effect.
The MSB values are stated in this German-language manual of the SD2.
http://www.sound-tuning-spessart.de/VERKAUF/Zip/SD2-Handbuch.pdf