Component: Network Communications Dummy (Comms: Networking)

Author	Matrix TSL
Version	1.1
Category	Comms: Networking

Network Communications Dummy component

A component designed to simplify the process of TCP/IP communications. Compatible with most of the Flowcode supported TCP/IP and WIFI components. A useful building block for creating components such as IoT and Modbus TCP.

Component Source Code

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

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

Detailed description

No detailed description exists yet for this component

Examples

Here are some examples showing the Network Communications component in action.

By itself the component provides a generic TCP/IP layer to drive the simulation runtime.

Here is a simple example showing the component used by itself to request data from a remote server on the internet.

Example Network Comms Client

Library Components

Components such as Webserver (GENERIC), MQTT and Modbus TCP can connect to and control the network comms layer.

Here is a simple example showing the component used with the Webserver (GENERIC) component.

Example Network Comms Web Server

Embedded Components

The Network Communications component can also be connected to embedded TCP/IP and WIFI style modules allowing for the abstraction to work with specific networking hardware modules.

Here is the current status of the Network Communications component with the various embedded modules.

Embedded Component	Other Variants of Component	Support Status
TCP/IP (Raspberry Pi)	N/A	Fully Supported
WLAN (ESP8266)	WLAN (ESP-12S), WIFI (BL0136), WIFI (ESP8266)	Fully Supported
TCP/IP (W5500)	N/A	Fully Supported
ENC28J60	N/A	On Hold
TCP/IP (NM7010A)	TCP/IP (EB023v1)	On Hold
TCP/IP (W5100)	TCP/IP (EB023v2), TCP/IP (WIZ810MJ)	On Hold
WLAN (WIZ610WI)	WIFI (EB069)	On Hold

We are working through and adding support as and when we get chance so if you have a module that isn't listed or would like to try and prioritise a specific module then you can let us know via the user forums.

Macro reference

AcceptClose

	AcceptClose
- VOID	Return

AcceptOpen

	AcceptOpen
- BYTE	Return

Connect

	Connect
Connects to an IP address as a client on the specified port. Some TCP/IP modules (RPI and ESP8266) will accept a URL instead of an IP address. Returns: 0=Fail, 1=OK
- STRING	Address
IP address as a string e.g. "192.168.1.1" or URL on some TCP/IP modules
- UINT	Port
- BOOL	Return

Initialise

	Initialise
- VOID	Return

Listen

	Listen
Bind the socket to a port on the local host and set to listen mode. Returns: 0=Fail, 1=OK
- UINT	Port
- BOOL	Return

Receive

	Receive
Attempts to receive up to a specified number of bytes from the active connection. Returns the number of bytes received.
- STRING	Data
- UINT	Count
Maximum number of bytes to read
- UINT	Timeout
Maximum wait time in mS (approx)
- UINT	Return

Send

	Send
Sends the specified number of bytes via the active connection. Returns the number of bytes sent, 0=Fail.
- STRING	Data
Array containing the data to send
- UINT	Count
Number of bytes to send from the data array
- UINT	Return

SocketClose

	SocketClose
Closes the current socket connection
- VOID	Return

SocketOpen

	SocketOpen
Attempts to create a socket on the local device. This must be succesful to allow TCP/IP communications with a remote destination. Returns: 0=Fail / 1=OK
- BOOL	Return

Property reference

	Properties
	TCP/IP Component
Property to point to the TCP/IP or WIFI component you want to use. If unconnected then default to simulated TCP/IP network communications using the PC network adapter.
	Status