Component: Injector (Flowcode vNet) (Test Injectors): Difference between revisions

Latest revision as of 14:36, 13 July 2026

Author	Matrix Ltd
Version	1.0
Category	Test Injectors

Injector (Flowcode vNet) component

Comms data injector to allow components to talk to each other between instances of Flowcode. The injector allows the data to be sent and received between multiple instances of Flowcode either running on a single machine, across a network or via the internet.

Component Source Code

Please click here to download the component source project: FC_Comp_Source_InjectorVnet.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_InjectorVnet.fcfx

Detailed description

No detailed description exists yet for this component

Examples

Simple Single Instance

Sends out data and prints incoming data to an LCD. Uses the same port number for transmit and receive.

SingleInstanceVnet

Simple Multi Instance

The first program sends out data.

UartVnetDemoTx

The second program receives the data and prints to an LCD.

UartVnetDemoRx

Remote Lock

Here is an example of using the vNet injector to simulate a multi microcontroller system.

Microcontroller 1 is connected to a keypad and has a RS232 communications connection.

Microcontroller 2 is connected to a solenoid and has a RS232 communications connection.

Any key presses detected on microcontroller 1 will be sent via RS232 to microcontroller 2. If the correct byte sequence (1234) is received by microcontroller 2 then the solenoid is fired to unlock a door for 5 seconds.

vNet Example Node 1

vNet Example Node 2

Communications over the vNet injector can be monitored using the console.

Modbus Master and Slave example using vNet

Example of communicating using Modbus Master and Slave using two instances of Flowcode and the vNet injector component.

ModbusMasterDemo

ModBusSlaveDemo

Macro reference

IOGetInputPin

	IOGetInputPin

- BYTE	Pin

- BOOL	Return

IOSetOutputPin

	IOSetOutputPin

- BYTE	Pin

- BOOL	State

- VOID	Return

Initialise

	Initialise
Sets up the injector ready to receive commands or send data
- VOID	Return

UARTBaud

	UARTBaud

- BYTE	Channel

- BYTE	Rate

- VOID	Return

UARTCheckRX

	UARTCheckRX

- BYTE	Channel

- BYTE	Return

UARTInitialise

	UARTInitialise

- BYTE	Channel

- VOID	Return

UARTReceive

	UARTReceive

- BYTE	Channel

- BYTE	Return

UARTSend

	UARTSend

- BYTE	Channel

- BYTE	Data

- VOID	Return

Property reference

	Properties
	vNet Injector Settings
	Network Interface
Allows different network interfaces to be selected. The current network interface can be determined by looking at the My IP properties.
	Incoming Channel
TCP Channel Instance, allows multiple servers and clients to run on the same machine or inside the same simulation.
	Incoming Port
Port used for incoming communications. 80=HTTP Ports have to match up to allow communications to be sent and received.
	Outgoing Channel
TCP Channel Instance, allows multiple servers and clients to run on the same machine or inside the same simulation.
	Outgoing Port
Port used for outgoing communications. 80=HTTP Ports have to match up to allow communications to be sent and received.
	Connection Mode
Specified if this Vnet node is going to connect to another instance of Flowcode running on this PC or a networked PC.
	Circular Buffer Size
Size of the circular buffers used to temporarily store the incoming and outgoing data.
	Local IP
	My IP0
Local IP address byte 0
	My IP1
Local IP address byte 1
	My IP2
Local IP address byte 2
	My IP3
Local IP address byte 3
	Simulation
	Show Console

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+| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
-| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''IOGetInputPin'''
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+| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
-| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''IOSetOutputPin'''
+| width="90%" class="mtx-class-macrohead" | '''IOSetOutputPin'''
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+| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
-| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
+| width="90%" class="mtx-class-macrohead" | '''Initialise'''
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 | colspan="2" | Sets up the injector ready to receive commands or send data&nbsp;
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+| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
-| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''UARTBaud'''
+| width="90%" class="mtx-class-macrohead" | '''UARTBaud'''
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 {| class="mtx-class-macrotable wikitable"
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+| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
-| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''UARTCheckRX'''
+| width="90%" class="mtx-class-macrohead" | '''UARTCheckRX'''
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+| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
-| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''UARTInitialise'''
+| width="90%" class="mtx-class-macrohead" | '''UARTInitialise'''
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+| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
-| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''UARTReceive'''
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-| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''UARTSend'''
+| width="90%" class="mtx-class-macrohead" | '''UARTSend'''
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-| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]]
+| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-prop-icon.png]]
-| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''
+| width="90%" class="mtx-class-macrohead" | '''Properties'''
 |-
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-| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
+| width="10%" align="center" class="mtx-class-propfolder" | [[File:Fc9-conn-icon.png]]
-| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | vNet Injector Settings
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 | colspan="2" | Size of the circular buffers used to temporarily store the incoming and outgoing data.&nbsp;
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+| width="10%" align="center" class="mtx-class-propfolder" | [[File:Fc9-conn-icon.png]]
-| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Local IP
+| width="90%" class="mtx-class-propfolder" | Local IP
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+| width="10%" align="center" class="mtx-class-propfolder" | [[File:Fc9-conn-icon.png]]
-| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Simulation
+| width="90%" class="mtx-class-propfolder" | Simulation
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