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Patrick McDonagh
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README.md
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# Universal Flow Skid
Reads from either a modbus flowmeter or an analog flowmeter.
## Hardware Used
- PLC: Micro820 (2080-LC20-20QBB)
- Slot 1: 2080-IF2
## Inputs
### Digital Inputs
| Input | Usage |
| ----- | ---------------------------- |
| 0 | Flowmeter Type (On = Modbus) |
### Analog Inputs
| Input | Usage |
|--------- | ----------------- |
| 0 | 4-20mA Flowmeter |
| 1 | 4-20mA Pressure |
## Outputs
### Digital Outputs
| Output | Usage |
| ------ | ----------------------- |
| 0 | Analog Flowmeter in use |
| 1 | Modbus Flowmeter in use |
## Configuration
The system can be configured to use either an Analog Flowmeter or a Modbus Flowmeter. The system defaults to the Analog Flowmeter.
### To enable the modbus flowmeter do one of the following:
- Jumper 24VDC to Digital Input 0
- Write 1/True to the tag "sw_UseModbusFlowmeter" from SCADA
### To enable the analog flowmeter do BOTH of the following:
- Remove the 24VDC jumper from Digital Input 0
- Write 0/False to the tag "sw_UseModbusFlowmeter" from SCADA
When the system is configured to use the Analog Flowmeter, Digital Output 0 will be ON.
When the system is configured to use the Modbus Flowmeter, Digital Output 1 will be ON.
### Customizing Modbus Parameters
The system defaults for modbus parameters enable communication with the Promag Modbus meters. The following tags can be modified to enable communication with different device types:
| Tag | Default | Usage |
| ----------------------------- | ------- | ------------------------------- |
| cfg\_Flowmeter_ModbusNode | 1 | Node Address of Flowmeter |
| cfg\_FlowRate\_Register | 201 | Register of Flow Rate |
| cfg\_FlowTotalizerA\_Register | 203 | Register of Net Flow Total |
| cfg\_FlowTotalizerB\_Register | 205 | Register of Positive Flow Total |
| cfg\_FlowTotalizerC\_Register | 207 | Register of Negative Flow Rate |
| cfg\_ResetTotalizerA\_Coil | 104 | Coil to Reset Totalizer A |
| cfg\_ResetTotalizerB\_Coil | 105 | Coil to Reset Totalizer B |
| cfg\_ResetTotalizerC\_Coil | 106 | Coil to Reset Totalizer C |
| cfg\_Status\_Register | 1 | Register of Device Status |
| cfg\_Units\_Register | 61 | First Units Register |
The serial port is configured as a Master for Modbus RTU over RS485 with baud rate of 9600, 8N2.
## SCADA Tags
The following tags would be relevant to read over SCADA:
| Tag | Type | Description | Access |
| -------------------------- | ------ | -------------------------------- | ------ |
| cmd\_ResetTotalizerA | BOOL | Reset Totalizer A | RW |
| cmd\_ResetTotalizerB | BOOL | Reset Totalizer B | RW |
| cmd\_ResetTotalizerC | BOOL | Reset Totalizer C | RW |
| Flow\_EU\_Max | REAL | EU Max Flow Scaling | RW |
| Flow\_EU\_Min | REAL | EU Min Flow Scaling | RW |
| Pressure\_EU\_Max | REAL | EU Max Pressure Scaling | RW |
| Pressure\_EU\_Min | REAL | EU Min Pressure Scaling | RW |
| cmd\_ClearFlowTotal | BOOL | Clear analog Flow Total Command | RW |
| sw\_UseModbusFlowmeter | BOOL | Use the modbus flowmeter | RW |
| use\_ModbusFlowmeter | BOOL | Status of using Modbus Flowmeter | R |
| sts\_FlowMeterModbusOK | BOOL | Flowmeter Modbus OK Status | R |
| val\_Pressure | REAL | Pressure Reading | R |
| val\_AI00\_uA | REAL | uA Reading on AI00 | R |
| val\_AI01\_uA | REAL | uA Reading on AI01 | R |
| val\_FlowRate | REAL | Flow Rate | R |
| val\_FlowTotalizerA | REAL | Flow Totalizer A (Net Flow) | R |
| val\_FlowTotalizerB | REAL | Flow Totalizer B (Fwd Flow) | R |
| val\_FlowTotalizerC | REAL | Flow Totalizer C (Rev Flow) | R |
| val\_FlowRate\_Units | STRING | Flow Rate Units | R |
| val\_FlowTotalizerA\_Units | STRING | Flow Totalizer A Units | R |
| val\_FlowTotalizerB\_Units | STRING | Flow Totalizer B Units | R |
| val\_FlowTotalizerC\_Units | STRING | Flow Totalizer C Units | R |
| val\_StatusString | STRING | FlowMeter Status | R |
## Contributors
- [Patrick McDonagh](https://github.com/patrickjmcd) - Owner
- Ben Nabors - Collaborator
For documentation, see the [doc site](https://henry-pump.github.io/Flow-Skid-Universal/).

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# Universal Flow Skid
Reads from either a modbus flowmeter or an analog flowmeter.
## Hardware Used
- PLC: Micro820 (2080-LC20-20QBB)
- Slot 1: 2080-IF2
## Inputs
### Digital Inputs
| Input | Usage |
| ----- | ---------------------------- |
| 0 | Flowmeter Type (On = Modbus) |
### Analog Inputs
| Input | Usage |
|--------- | ----------------- |
| 0 | 4-20mA Flowmeter |
| 1 | 4-20mA Pressure |
## Outputs
### Digital Outputs
| Output | Usage |
| ------ | ----------------------- |
| 0 | Analog Flowmeter in use |
| 1 | Modbus Flowmeter in use |
## Configuration
The system can be configured to use either an Analog Flowmeter or a Modbus Flowmeter. The system defaults to the Analog Flowmeter.
### To enable the modbus flowmeter do one of the following:
- Jumper 24VDC to Digital Input 0
- Write 1/True to the tag "sw_UseModbusFlowmeter" from SCADA
### To enable the analog flowmeter do BOTH of the following:
- Remove the 24VDC jumper from Digital Input 0
- Write 0/False to the tag "sw_UseModbusFlowmeter" from SCADA
When the system is configured to use the Analog Flowmeter, Digital Output 0 will be ON.
When the system is configured to use the Modbus Flowmeter, Digital Output 1 will be ON.
### Customizing Modbus Parameters
The system defaults for modbus parameters enable communication with the Promag Modbus meters. The following tags can be modified to enable communication with different device types:
| Tag | Default | Usage |
| ----------------------------- | ------- | ------------------------------- |
| cfg\_Flowmeter_ModbusNode | 1 | Node Address of Flowmeter |
| cfg\_FlowRate\_Register | 201 | Register of Flow Rate |
| cfg\_FlowTotalizerA\_Register | 203 | Register of Net Flow Total |
| cfg\_FlowTotalizerB\_Register | 205 | Register of Positive Flow Total |
| cfg\_FlowTotalizerC\_Register | 207 | Register of Negative Flow Rate |
| cfg\_ResetTotalizerA\_Coil | 104 | Coil to Reset Totalizer A |
| cfg\_ResetTotalizerB\_Coil | 105 | Coil to Reset Totalizer B |
| cfg\_ResetTotalizerC\_Coil | 106 | Coil to Reset Totalizer C |
| cfg\_Status\_Register | 1 | Register of Device Status |
| cfg\_Units\_Register | 61 | First Units Register |
The serial port is configured as a Master for Modbus RTU over RS485 with baud rate of 9600, 8N2.
## SCADA Tags
The following tags would be relevant to read over SCADA:
| Tag | Type | Description | Access |
| -------------------------- | ------ | -------------------------------- | ------ |
| cmd\_ResetTotalizerA | BOOL | Reset Totalizer A | RW |
| cmd\_ResetTotalizerB | BOOL | Reset Totalizer B | RW |
| cmd\_ResetTotalizerC | BOOL | Reset Totalizer C | RW |
| Flow\_EU\_Max | REAL | EU Max Flow Scaling | RW |
| Flow\_EU\_Min | REAL | EU Min Flow Scaling | RW |
| Pressure\_EU\_Max | REAL | EU Max Pressure Scaling | RW |
| Pressure\_EU\_Min | REAL | EU Min Pressure Scaling | RW |
| cmd\_ClearFlowTotal | BOOL | Clear analog Flow Total Command | RW |
| sw\_UseModbusFlowmeter | BOOL | Use the modbus flowmeter | RW |
| use\_ModbusFlowmeter | BOOL | Status of using Modbus Flowmeter | R |
| sts\_FlowMeterModbusOK | BOOL | Flowmeter Modbus OK Status | R |
| val\_Pressure | REAL | Pressure Reading | R |
| val\_AI00\_uA | REAL | uA Reading on AI00 | R |
| val\_AI01\_uA | REAL | uA Reading on AI01 | R |
| val\_FlowRate | REAL | Flow Rate | R |
| val\_FlowTotalizerA | REAL | Flow Totalizer A (Net Flow) | R |
| val\_FlowTotalizerB | REAL | Flow Totalizer B (Fwd Flow) | R |
| val\_FlowTotalizerC | REAL | Flow Totalizer C (Rev Flow) | R |
| val\_FlowRate\_Units | STRING | Flow Rate Units | R |
| val\_FlowTotalizerA\_Units | STRING | Flow Totalizer A Units | R |
| val\_FlowTotalizerB\_Units | STRING | Flow Totalizer B Units | R |
| val\_FlowTotalizerC\_Units | STRING | Flow Totalizer C Units | R |
| val\_StatusString | STRING | FlowMeter Status | R |
## Contributors
- [Patrick McDonagh](https://github.com/patrickjmcd) - Owner
- Ben Nabors - Collaborator