Message Stream

Message Stream Device Driver allows Iotellect Server to communicate with devices that send string data over TCP, UDP or Serial ports. Once the Iotellect Server is connected to a device it starts to listen for incoming stream. The stream is split into messages by a specified message separator. Every time a new message is available it passed to processing expression where any behavior can be defined.

Driver Information

Driver Plugin ID:

com.tibbo.linkserver.plugin.device.message-stream

Global Settings

None defined.

User Level Settings

None defined.

Device Account Properties

Connection Properties

Connection settings define how Iotellect Server communicates with a certain device. These settings may be accessed using the Edit Device Properties action of Device Context. The following connection properties are available:

Property

Description

Mode

A choice of TCP, UDP and Serial.

IP address or host name

Address of the device (for TCP/UDP mode).

Port

Device listening port (for TCP/UDP mode) or name of serial port the device is connected to (for Serial mode).

Baud Rate

Baud Rate (for Serial mode).

Incoming Flow Control

Incoming flow control type: None, CTS/RTS, or XON/XOFF (for Serial mode).

Outgoing Flow Control

Outgoing flow control type: None, CTS/RTS, or XON/XOFF (for Serial mode).

Data Bits

Serial data bits (for Serial mode).

Stop Bits

Serial stop bits (for Serial mode).

Parity

Serial parity (for Serial mode).

Timeout

Command timeout (default is 5 seconds).

Message Separator

Incoming message separator

Processing Expression

Executing expression for the incoming message

Device Assets

Assets are not supported by the driver.

Device Settings

Message Stream device driver creates two Device setting variables:

Variable Name

Variable Description

Comments

message

Message

Contains last incoming message (without separator)

messageStatistics

Message Statistics

Contains the following attributes:

  • Message count (messageCount)

  • Last Message Received Time (lastMessageReceivedTime)

Device Operations

No operations provided by the driver.

Device Events

No events provided by the driver.

Connection Handling

This driver makes the device Online if:

  • TCP, UDP or Serial connection with the device was successfully established

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