Meaning of IMAX in attitude controller

I am trying to tune PID’s in my quadcopter. In mission planner/config/tuning section there under the throttle accel section IMAX value is 80. I want to know what does this 80 means. is it multiplied by 1000?
Inside the code is it taken as 0.080?
My understanding is IMAX = max(I_gain*integration of error signal).
So How can IMAX be 80?

The range for ACCEL_Z_IMAX is 0-1000, and it says in the docs the units are percent*10
You are correct in that the param constrains the maximum buildup of the integral gain. So a value of 80 would be 8% maximum buildup, 1000 would be 100%.