DataConverter class

Data type conversion utilities for Modbus registers.

Modbus registers are 16-bit (2 bytes), but often represent larger data types like 32-bit integers, floats, or strings. This class provides utilities for converting between register arrays and various data types.

Example:

// Read temperature as Float32
final bytes = await client.readHoldingRegistersBytes(1, 100, 2);
final temp = DataConverter.bytesToFloat32(bytes);

// Write setpoint as Float32
final setpoint = 25.5;
final data = DataConverter.float32ToBytes(setpoint);
await client.writeMultipleRegistersBytes(1, 200, 2, data);

Constructors

DataConverter()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

bytesToFloat32(Uint8List bytes, {ByteOrder byteOrder = ByteOrder.bigEndian}) → double

Convert bytes to 32-bit float (Float32/Single).

bytesToFloat64(Uint8List bytes, {ByteOrder byteOrder = ByteOrder.bigEndian}) → double

Convert bytes to 64-bit double (Float64/Double).

bytesToInt16(Uint8List bytes) → Int16List

Convert bytes to signed 16-bit integers.

bytesToInt32(Uint8List bytes, {ByteOrder byteOrder = ByteOrder.bigEndian}) → int

Convert bytes to signed 32-bit integer (Int32).

bytesToString(Uint8List bytes, {bool trimNull = true}) → String

Convert bytes to ASCII string.

bytesToUint16(Uint8List bytes) → Uint16List

Convert bytes to unsigned 16-bit integers.

bytesToUint32(Uint8List bytes, {ByteOrder byteOrder = ByteOrder.bigEndian}) → int

Convert bytes to unsigned 32-bit integer (UInt32).

float32ToBytes(double value, {ByteOrder byteOrder = ByteOrder.bigEndian}) → Uint8List

Convert 32-bit float to bytes.

float64ToBytes(double value, {ByteOrder byteOrder = ByteOrder.bigEndian}) → Uint8List

Convert 64-bit double to bytes.

getBit(Uint8List bytes, int bitIndex) → bool

Get specific bit from byte array.

int16ToBytes(List<int> values) → Uint8List

Convert signed 16-bit integers to bytes.

int32ToBytes(int value, {ByteOrder byteOrder = ByteOrder.bigEndian}) → Uint8List

Convert signed 32-bit integer to bytes.

setBit(Uint8List bytes, int bitIndex, bool value) → void

Set specific bit in byte array.

stringToBytes(String value, {int? length}) → Uint8List

Convert string to bytes.

uint16ToBytes(List<int> values) → Uint8List

Convert unsigned 16-bit integers to bytes.

uint32ToBytes(int value, {ByteOrder byteOrder = ByteOrder.bigEndian}) → Uint8List

Convert unsigned 32-bit integer to bytes.