org.avineas.modbus

Class WriteMultipleRegistersRequest

java.lang.Object

org.avineas.modbus.ModbusPacket

org.avineas.modbus.ModbusRequest

org.avineas.modbus.WriteMultipleRegistersRequest

public class WriteMultipleRegistersRequest
extends ModbusRequest

A request indicating multiple registers that are written. Mainly consists of a start address and the values to write from this address on.

Field Summary

Fields

Modifier and Type	Field and Description
static int	FUNCTION

Constructor Summary

Constructors

Constructor and Description
WriteMultipleRegistersRequest(int startAddress, byte[] values) Constructor to use in master mode to write registers at a specific slave with byte values.
WriteMultipleRegistersRequest(int startAddress, int[] values)
WriteMultipleRegistersRequest(int startAddress, int[] values, int size) Constructor to use in master mode to write registers at a specific slave.
WriteMultipleRegistersRequest(ModbusRequest request) Constructor used in slave mode after it is determined that the request received is a write request.

Method Summary

Methods

Modifier and Type	Method and Description
int	getNumberOfRegisters() Get the number of registers written as requested in the message.
byte[]	getPlcRegisterContent() Get the PLC register values as byte array.
int	getStartAddress() Get the start address as requested in the message.
int[]	getValues() Get the values as integer array.

Methods inherited from class org.avineas.modbus.ModbusPacket

decode, encode, getFunction, toBytes

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

FUNCTION

public static final int FUNCTION

See Also:

Constant Field Values

Constructor Detail

WriteMultipleRegistersRequest

public WriteMultipleRegistersRequest(int startAddress,
                             int[] values,
                             int size)

Constructor to use in master mode to write registers at a specific slave.

Parameters:

startAddress - The start address where to start writing

values - The values to write as word address values

size - The number of items in the values buffer

WriteMultipleRegistersRequest

public WriteMultipleRegistersRequest(int startAddress,
                             int[] values)

WriteMultipleRegistersRequest

public WriteMultipleRegistersRequest(int startAddress,
                             byte[] values)

Constructor to use in master mode to write registers at a specific slave with byte values.

Parameters:

startAddress - The start address where to start writing

values - The byte values to write as word address values

WriteMultipleRegistersRequest

public WriteMultipleRegistersRequest(ModbusRequest request)
                              throws java.lang.IllegalArgumentException

Constructor used in slave mode after it is determined that the request received is a write request. This allows for easier access of the information in the request.

Parameters:

request - The request received

Throws:

java.lang.IllegalArgumentException - In case the request isn't a write request

Method Detail

getStartAddress

public int getStartAddress()

Get the start address as requested in the message.

Returns:

The start address requested

getNumberOfRegisters

public int getNumberOfRegisters()

Get the number of registers written as requested in the message.

Returns:

The number of registers

getValues

public int[] getValues()

Get the values as integer array.

Returns:

The values, as integer array

getPlcRegisterContent

public byte[] getPlcRegisterContent()

Get the PLC register values as byte array.

Returns:

The PLC register values, as byte array