The goal is to control the air flow in a surgery room.
To get the right air flow reading the T3-TB controller needs to execute the formula:
10 VAR79 = VAR78 * SQR (VAR68)
(AIRFLOW = KFACTOR * SQR (DELTA P))
But VAR79 returns always the same value of VAR68
I also tried:
10 VAR1 = SQR ( 49 )
VAR1 returns 49
I’m using a T3-TB ARM controller mini_arm_rev52.2.hex