ModbusClientTcp class

The Modbus TCP client class.

Constructors

ModbusClientTcp(String serverAddress, {int serverPort = 502, ModbusConnectionMode connectionMode = ModbusConnectionMode.autoConnectAndKeepConnected, Duration connectionTimeout = const Duration(seconds: 3), Duration responseTimeout = const Duration(seconds: 3), Duration? delayAfterConnect, int? unitId})

Properties

connectionMode → ModbusConnectionMode

final, inherited

connectionTimeout → Duration

final

delayAfterConnect → Duration?

final

hashCode → int

The hash code for this object.

no setter, inherited

isConnected → bool

Returns true if connection to client is established.

no setter

responseTimeout → Duration

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

serverAddress → String

final

serverPort → int

final

unitId → int?

final, inherited

Methods

connect() → Future<bool>

Connect the socket if not already done or disconnected

disconnect() → Future<void>

Handle socket being closed

getResponseTimeout(ModbusRequest request) → Duration

If request has its own responseTimeout defined, then it will override this client responseTimeout.

inherited

getUnitId(ModbusRequest request) → int

If request has its own unitId defined, then it will override this client unitId. If both unitId are not defined the a 0 is returned.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

send(ModbusRequest request) → Future<ModbusResponseCode>

Sends the modbus requests. A ModbusResponseCode is returned as a future.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

discover(String startIpAddress, {int serverPort = 502, Duration connectionTimeout = const Duration(milliseconds: 10)}) → Future<String?>

This is an easy server address discovery.