Package io.openems.edge.bridge.modbus.api.element

Class AbstractWordElement<E,T>

java.lang.Object

io.openems.edge.bridge.modbus.api.element.AbstractModbusElement<T>

io.openems.edge.bridge.modbus.api.element.AbstractModbusRegisterElement<E,T>

io.openems.edge.bridge.modbus.api.element.AbstractWordElement<E,T>

Type Parameters:

E - the subclass of myself

T - the target OpenemsType

All Implemented Interfaces:

ModbusElement<T>, ModbusRegisterElement<T>

Direct Known Subclasses:

SignedWordElement, UnsignedWordElement

public abstract class AbstractWordElement<E,T>
extends AbstractModbusRegisterElement<E,T>

A WordElement has a size of one Modbus Registers or 16 bit.

Field Summary

Fields inherited from class io.openems.edge.bridge.modbus.api.element.AbstractModbusElement

abstractTask, onSetNextWriteCallbacks

Constructor Summary

Constructors

Constructor	Description
AbstractWordElement(OpenemsType type, int startAddress)

Method Summary

Modifier and Type	Method	Description
protected void	_setInputRegisters(com.ghgande.j2mod.modbus.procimg.InputRegister... registers)
void	_setNextWriteValue(Optional<T> valueOpt)	Sets a value that should be written to the Modbus device.
protected abstract T	fromByteBuffer(ByteBuffer buff)	Converts a 2-byte ByteBuffer to the the current OpenemsType.
final int	getLength()	Number of Registers or Coils.
protected abstract ByteBuffer	toByteBuffer(ByteBuffer buff, Object value)	Converts the current OpenemsType to a 2-byte ByteBuffer.

Methods inherited from class io.openems.edge.bridge.modbus.api.element.AbstractModbusRegisterElement

byteOrder, getByteOrder, getNextWriteValue, self, setInputRegisters, setNextWriteValueRegisters

Methods inherited from class io.openems.edge.bridge.modbus.api.element.AbstractModbusElement

deactivate, debug, getModbusTask, getStartAddress, getType, invalidate, isDebug, isIgnored, onSetNextWrite, onUpdateCallback, setModbusTask, setValue, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface io.openems.edge.bridge.modbus.api.element.ModbusElement

deactivate, getStartAddress, getType, invalidate, isIgnored, onSetNextWrite, setModbusTask

Methods inherited from interface io.openems.edge.bridge.modbus.api.element.ModbusRegisterElement

getNextWriteValueAndReset, setNextWriteValue

Constructor Details

AbstractWordElement

public AbstractWordElement(OpenemsType type,
 int startAddress)

Method Details

getLength

public final int getLength()

Description copied from interface: ModbusElement

Number of Registers or Coils.

Returns:

the number of Registers or Coils

_setInputRegisters

protected void _setInputRegisters(com.ghgande.j2mod.modbus.procimg.InputRegister... registers)

Specified by:

_setInputRegisters in class AbstractModbusRegisterElement<E,T>

fromByteBuffer

protected abstract T fromByteBuffer(ByteBuffer buff)

Converts a 2-byte ByteBuffer to the the current OpenemsType.

Parameters:

buff - the ByteBuffer

Returns:

an instance of the current OpenemsType

_setNextWriteValue

public void _setNextWriteValue(Optional<T> valueOpt)
                        throws OpenemsException

Description copied from interface: ModbusElement

Sets a value that should be written to the Modbus device.

Parameters:

valueOpt - the Optional value

Throws:

OpenemsException - on error

toByteBuffer

protected abstract ByteBuffer toByteBuffer(ByteBuffer buff,
 Object value)

Converts the current OpenemsType to a 2-byte ByteBuffer.

Parameters:

buff - the target ByteBuffer

value - the value

Returns:

the ByteBuffer