Component: SCADA (Arduino Uno) (SCADA Slaves)
| Author | Matrix TSL |
| Version | 1.0 (Release) |
| Category | SCADA Slaves |
Contents
SCADA (Arduino Uno) component
Connects to an Arduino Uno running the SCADA Arduino Uno Firmware allowing the board to become a slave to the flowcode simulation runtime. Supports: Digital IO / ADC / I2C / SPI / PWM See Flowcode Help Wiki for firmware.
Detailed description
The SCADA (Arduino Uno) component allows an Arduino Uno board to be controlled from within the Flowcode simulation runtime.
To allow Flowcode to communicate and control the Arduino Uno hardware the board must first be pre-programmed with dedicated firmware.
The firmware hex file and Flowcode source project can be downloaded from here.
More information about the workings of the firmware project can be found on the FiniteStateMachine page.
The COM port to the Arduino hardware is selected via the SCADA_Ard_Uno componennt COM port property.
When building the component into a SCADA project remember to expose the COM port property to allow the end user to select the correct port for the hardware.
The console window can display data in two modes which is set via a component property.
- fixed statistics showing IO / ADC inputs / PWM
- scrolling log showing all commands and returns
Examples
Direct Slave Access
Here is a simple demo to switch on and off digital pin 5.
Rapid Development - Virtualised SPI
A feature of the SCADA Slave interface is to use the component for rapid development.
The SCADA Slave hardware can be used to take communications from the Flowcode simulation and transfer them to a real world device allowing for easy code generation and test without having to download to a target microcontroller device.
The CS pin and SPI Prescaler are set via the properties of the Injector component.
The SPI Master component is linked to the Injector component via the Injector property.
The Injector component is linked to the SCADA Slave component via the SCADA Slave property.
Arduino Uno SCADA Slave SPI Demo
Rapid Development - Virtualised I2C
A feature of the SCADA Slave interface is to use the component for rapid development.
The SCADA Slave hardware can be used to take communications from the Flowcode simulation and transfer them to a real world device allowing for easy code generation and test without having to download to a target microcontroller device.
The I2C Master component is linked to the Injector component via the Injector property.
The Injector component is linked to the SCADA Slave component via the SCADA Slave property.
Arduino Uno SCADA Slave I2C Demo
Rapid Development - Virtualised UART
A feature of the SCADA Slave interface is to use the component for rapid development.
The SCADA Slave hardware can be used to take communications from the Flowcode simulation and transfer them to a real world device allowing for easy code generation and test without having to download to a target microcontroller device.
The Baud rate and optional RS485 Properties are set via the properties of the Injector component.
The UART component is linked to the Injector component via the Injector property.
The Injector component is linked to the SCADA Slave component via the SCADA Slave property.
Arduino Uno SCADA Slave UART Demo
Downloadable macro reference
This component does not contain any downloadable macros
Simulation macro reference
I2CInitialise
Initialsie the I2C module ready for communications
Parameters
- This macro has no parameters
Return value
- This call does not return a value
IOGetInputPin
Sets the selected digital pin to an input and reads the input state.
Parameters
- BYTE Pin
- Range: 0-13
Return value
- BOOL : Returns true if the operation is a success, else false
ADCSample8
Reads the voltage present on an Alanog pin as an 8-bit value range 0-255
Parameters
- BYTE ADCChannel
- Range: 0-5
Return value
I2CRestart
Put the I2C Module into Restart mode
Parameters
- This macro has no parameters
Return value
- This call does not return a value
PWMDisable
Disable a PWM output
Parameters
- BYTE Channel
- Range: 0-5
Return value
- This call does not return a value
I2CReceive
Receive a byte using the I2C bus
Parameters
- BOOL Last
- Last byte to receive: Range 0-1
Return value
I2CStart
Put the I2C Module into Start mode
Parameters
- This macro has no parameters
Return value
- This call does not return a value
SPITransfer
Transfer a byte using the SPI bus
Parameters
- BYTE DataOut
Return value
I2CStop
Put the I2C Module into Stop mode
Parameters
- This macro has no parameters
Return value
- This call does not return a value
SPIPrescaler
Modify the speed of the SPI bus
Parameters
- BYTE Prescaler
- Range: 0-2
Return value
- This call does not return a value
PWMSetDuty
Sets the duty for the PWM output
Parameters
- BYTE Channel
- Range: 0-5
- BYTE Duty
Return value
- This call does not return a value
ADCSample10
Reads the voltage present on an Alanog pin as an 10-bit value range 0-1023
Parameters
- BYTE ADCChannel
- Range: 0-5
Return value
IOSetOutputPin
Sets the selected digital pin to an output and assigns the output state.
Parameters
- BYTE Pin
- Range: 0-13
- BOOL State
- Range: 0-1
Return value
- This call does not return a value
SPIInitialise
Initialsie the SPI module ready for communications
Parameters
- This macro has no parameters
Return value
- This call does not return a value
I2CSend
Transmit a byte using the I2C bus
Parameters
- BYTE DataOut
Return value
- BOOL : Returns true if the operation is a success, else false
PWMSetPrescaler
Sets the prescaler for the PWM output
Parameters
- BYTE Channel
- Range: 0-5
- BYTE Prescaler
Return value
- This call does not return a value
PWMEnable
Enable a PWM output
Parameters
- BYTE Channel
- Range: 0-5
Return value
- This call does not return a value
Initialise
Initialise the comms to the Arduino board ready for commands to be sent.
Parameters
- This macro has no parameters
Return value
- This call does not return a value
Property reference
Data Source
This property is of type Fixed list of ints and can be referenced with the variable name scada_uart1::DataSource.
Simulation data source used to allow the component to connect to various remote devices
Nothing - Simulation data is ignored
COM port - Routes the communication data to and from a physical or virtual COM port
Injector - Routes the communication data via a data injector component on the Panel.
COM Port
This property is of type Fixed list of ints and can be referenced with the variable name scada_uart1::com_port.
Lists all the current available COM port hardware on your PC.
Refresh Ports
This property is of type True or false and can be referenced with the variable name scada_uart1::RefreshPorts.
No additional information
Console Log
This property is of type True or false and can be referenced with the variable name ConsoleLog.
Create an automatic console log of the commands sent to the Arduino
Log Mode
This property is of type Fixed list of ints and can be referenced with the variable name LogMode.
Controls how the console data is formatted.
Fixed statistics gives an easy to read overview of the IO, Analog and PWM functionality
Command Log gives a more in depth analysis of the outgoing commands and incoming returns
