Auto z height configuration

Holy1

I am running repetier 92.9 on my homemade Cartesian. I built in a z probe thinking I would use the autolevel system that repetier has but found the bed is dead level so no need for it. However, I do use different bed surfaces and would like to use the z probe to set the z height. The probe is built into the nozzle assy so no offset is needed and I use a z max endstop. What Goode command would I use to simply probe and report the z height and place the value in the eeprom?

Repetier

We have a feature bed coating for different coatings. The value gets then subtracted from z length. Alternatively 

G32 S2

if you want to autolevel as well and

G29 S2

if you just want to measure height at 3 points and adjust height.

Holy1

Thanks -  I have tried G29 S2 but am getting a z height return of NAN  

Holy1

the problem was I had the probe points in the same spot.