Impulse MAQ20-940 User Manual - Manual (Page 64)

ReDAQ
®
Shape Software for MAQ
®
20 User Manual
64
6.2.5 Demonstration Project #5: Tank Tool and Control Loop Feature
Filename Demo_Tank.rsd or Demo_Tank.rsu
This project uses closed loop control to fill a tank.
Analog input channel 0 is connected to a low level limit sensor and analog input channel
1 is connected to a high level limit sensor.
Analog input channel 0 is set for Control Loop, Tracking L, Low Limit 1.45V and Low
Deadband 0. Analog input channel 1 is set for Control Loop, Tracking H, High Limit
3.75V and High Deadband 0.
Analog input channel 0 Control Loop configuration is set to Active H and mapped to
discrete output channel DIO 0. Analog input channel 1 Control Loop configuration is set
to Active H and mapped to discrete output channel DIO 1.
Two LED Tools monitor the low and high limits. The On LED is assigned to channel 0
and the Off LED is assigned to channel 1.
The Button Tool in the center turns a discrete output channel on and off and represents a
pump used to drain the tank. The LED Tool above the button indicates channel state.
The Button Tool in the top left corner turns another discrete output channel on and off
and represents a pump used to fill the tank.
The Picture Box Tool has been used to show the plant schematic drawing which was
created with MS Paint.