# Frac Pit Transfer Station
### Developed by @patrickjmcd, @Henry-Pump


# Definitions
**Station:** the transfer station, The full system

**System:** an individual transfer system consisting of a combination of optional level transmitter, charge pump, intake pressure transmitter, optional discharge pressure transmitter, booster pump, and optional system flow transmitter.


# Operation

## Control Modes
### Auto Mode

In auto mode, the system will react to changing environmental conditions to maintain either a constant Discharge Pressure or a constant Flow Rate.

### Manual Mode

In manual mode, each system can be started or stopped at will and commanded to run at specific frequencies

## Settings

### Auto Mode Priority

In auto mode, the Auto Mode Priority is the order in which the specific systems will initiate based on the Get Help Frequency setpoints.

### Get Help Frequwncy

In auto mode, the Get Help Frequency is the motor frequency at which the system will activate the next system to assist with maintaining the flow or pressure setpoint.

### Takeover Frequency

In auto mode, the Takeover Frequency is the motor frequency at which the current system will shut down to allow the previous system to attempt to regulate the discharge pressure or flow rate the Transfer Station.

### Use System Flowmeter

Enables the use of the Overall Flowmeter or the use of a system-specific flowmeter.

### Use System Level Transmitter

Enables the use of the Station Level Transmitter of the use of a system-specific level transmitter.

### Has Booster Pump Discharge Pressure Transmitter

Enables the use of a system-specific Booster Pump Discharge Transmitter


# Wiring

| Slot    | Channel     | Device                          |
|-------- |------------ |-------------------------------- |
| 2       | 0           | LT01/LT11 Pond Level            |
| 2       | 1           | PT11 Intake Pressure            |
| 2       | 2           | PT12 Discharge  Pressure        |
| 2       | 3           | FT11 System Output              |
| 3       | 0           | LT21 Pond Level                 |
| 3       | 1           | PT21 Intake Pressure            |
| 3       | 2           | PT22 Discharge  Pressure        |
| 3       | 3           | FT21 System Output              |
| 4       | 0           | LT31 Pond Level                 |
| 4       | 1           | PT31 Intake Pressure            |
| 4       | 2           | PT32 Discharge  Pressure        |
| 4       | 3           | FT31 System Output              |



# Networking
## IP Addresses

| Device                                | IP Address          |
|-------------------------------------- |-------------------- |
| PLC (L19)                             | 192.168.1.10        |
| MC11 - System 1 Charge Pump           | 192.168.1.11        |
| MC21 - System 2 Charge Pump           | 192.168.1.12        |
| MC31 - System 3 Charge Pump           | 192.168.1.13        |
| MC12 - System 1 Booster Pump          | 192.168.1.14        |
| MC22 - System 2 Booster Pump          | 192.168.1.15        |
| MC32 - System 3 Booster Pump          | 192.168.1.16        |
| HMI1                                  | 192.168.1.21        |
| HMI2                                  | 192.168.1.22        |
| HMI3                                  | 192.168.1.23        |
