Package org.apache.plc4x.java.modbus.base.protocol

Class ModbusProtocolLogic<T extends ModbusADU>

java.lang.Object

org.apache.plc4x.java.spi.Plc4xProtocolBase<T>

org.apache.plc4x.java.modbus.base.protocol.ModbusProtocolLogic<T>

Direct Known Subclasses:

ModbusAsciiProtocolLogic, ModbusRtuProtocolLogic, ModbusTcpProtocolLogic

public abstract class ModbusProtocolLogic<T extends ModbusADU>
extends Plc4xProtocolBase<T>

Field Summary

Fields

Modifier and Type	Field	Description
protected DriverType	driverType
protected static int	FC_EXTENDED_REGISTERS_FILE_RECORD_LENGTH
protected static int	FC_EXTENDED_REGISTERS_GROUP_HEADER_LENGTH
protected PlcTag	pingAddress
protected Duration	requestTimeout
protected RequestTransactionManager	tm
protected AtomicInteger	transactionIdentifierGenerator
protected short	unitIdentifier

Fields inherited from class org.apache.plc4x.java.spi.Plc4xProtocolBase

context, driverContext

Constructor Summary

Constructors

Constructor	Description
ModbusProtocolLogic(DriverType driverType)

Method Summary

Modifier and Type	Method	Description
void	close(ConversationContext<T> context)
protected void	decode(ConversationContext<T> context, T msg)
protected byte[]	fromPlcValue(PlcTag tag, PlcValue plcValue)
protected PlcResponseCode	getErrorCode(ModbusPDUError errorResponse)
protected ModbusPDU	getReadRequestPdu(PlcTag tag)
protected ModbusPDU	getWriteRequestPdu(PlcTag tag, PlcValue plcValue)
protected PlcValue	readCoilBooleanList(int count, byte[] data)
protected byte	reverseBitsOfByte(byte b)
protected PlcValue	toPlcValue(ModbusPDU request, ModbusPDU response, ModbusDataType dataType)

Methods inherited from class org.apache.plc4x.java.spi.Plc4xProtocolBase

browse, browseWithInterceptor, getDriverContext, onConnect, onDisconnect, onDiscover, ping, read, setContext, setDriverContext, subscribe, unsubscribe, write

Methods inherited from class java.lang.Object

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

Field Detail

driverType

protected final DriverType driverType

requestTimeout

protected Duration requestTimeout

unitIdentifier

protected short unitIdentifier

pingAddress

protected PlcTag pingAddress

tm

protected RequestTransactionManager tm

transactionIdentifierGenerator

protected final AtomicInteger transactionIdentifierGenerator

FC_EXTENDED_REGISTERS_GROUP_HEADER_LENGTH

protected static final int FC_EXTENDED_REGISTERS_GROUP_HEADER_LENGTH

See Also:

Constant Field Values

FC_EXTENDED_REGISTERS_FILE_RECORD_LENGTH

protected static final int FC_EXTENDED_REGISTERS_FILE_RECORD_LENGTH

See Also:

Constant Field Values

Constructor Detail

ModbusProtocolLogic

public ModbusProtocolLogic(DriverType driverType)

Method Detail

close

public void close(ConversationContext<T> context)

Specified by:

close in class Plc4xProtocolBase<T extends ModbusADU>

decode

protected void decode(ConversationContext<T> context,
                      T msg)
               throws Exception

Overrides:

decode in class Plc4xProtocolBase<T extends ModbusADU>

Throws:

Exception

getErrorCode

protected PlcResponseCode getErrorCode(ModbusPDUError errorResponse)

getReadRequestPdu

protected ModbusPDU getReadRequestPdu(PlcTag tag)

getWriteRequestPdu

protected ModbusPDU getWriteRequestPdu(PlcTag tag,
                                       PlcValue plcValue)

toPlcValue

protected PlcValue toPlcValue(ModbusPDU request,
                              ModbusPDU response,
                              ModbusDataType dataType)
                       throws ParseException

Throws:

ParseException

fromPlcValue

protected byte[] fromPlcValue(PlcTag tag,
                              PlcValue plcValue)

reverseBitsOfByte

protected byte reverseBitsOfByte(byte b)

readCoilBooleanList

protected PlcValue readCoilBooleanList(int count,
                                       byte[] data)
                                throws ParseException

Throws:

ParseException