| PI Input | Description |
| Input_demand | R - input demanded value |
| Input_sensed | Y - input of plant output to be controlled |
| PI Output | Description |
| Effector Demand | U - output to plant Effector |
| PI Mask Variable | Description |
| Kp_M | Proportional gain |
| Ki_M | Integrator gain |
| PI_IC_M | Integrator Initial Conditions |