ModbusBytesRegister class

This register type reads and writes byte array.

The byteCount cannot exceed 250 bytes which is the multiple read bytes limit for Modbus/RTU. Note that the protocol limit depends on multiple factors:

  • Read & Write have different limits
  • Modbus RTU and TCP have different limits
  • Device dependent limits To get the right limit please refer to Modbus specs and your device manual.
Inheritance

Constructors

ModbusBytesRegister({required String name, required int address, required int byteCount, String description = "", dynamic onUpdate(ModbusElement self)?, ModbusElementType type = ModbusElementType.holdingRegister})

Properties

address ↔ int
getter/setter pairinherited
byteCount → int
finalinherited
description → String
finalinherited
endianness ↔ ModbusEndianness
getter/setter pairinherited
hashCode → int
The hash code for this object.
no setterinherited
name → String
finalinherited
onUpdate → dynamic Function(ModbusElement self)?
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
type → ModbusElementType
finalinherited
value ↔ Uint8List?
getter/setter pairinherited

Methods

getMultipleWriteRequest(Uint8List bytes, {int? unitId, Duration? responseTimeout, ModbusEndianness? endianness}) → ModbusWriteRequest
Gets a write request from multiple register elements.
inherited
getReadRequest({int? unitId, Duration? responseTimeout, ModbusEndianness? endianness}) → ModbusReadRequest
Gets a read request from this element
inherited
getWriteRequest(dynamic value, {bool rawValue = false, int? unitId, Duration? responseTimeout, ModbusEndianness? endianness, bool isSingleWriteRegister = false}) → ModbusWriteRequest
Gets a write request from this register element. value is set to the element once request is successfully completed. If rawValue is true then the integer value is written as it is without any value or type conversion.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
setValueFromBytes(Uint8List rawValues) → Uint8List?
override
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited