Class ModbusServer

java.lang.Object

java.lang.Thread

javaforce.pi.ModbusServer

All Implemented Interfaces:

Runnable

public class ModbusServer
extends Thread

Modbus Server for Raspberry PI. Supports: - coils (digital outputs via GPIO) - discrete input (digital inputs via GPIO) - read/write values from i2c devices (int8, int16, int24, int32, int64, float32, float64) Notes: - input and holding registers are treated as the same - changes to config require a reboot modbus.cfg: gpio:i|o:bit=?:addr=? i2c:i|o:addr=?:slaveaddr=??:avg=?,?,...:read=?,?,...:write=?,?,... port=502 invert=true|false

Author:

User

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ModbusServer.Client
static class	ModbusServer.float32
static class	ModbusServer.float64
static class	ModbusServer.I2C_I
static class	ModbusServer.I2C_O
static class	ModbusServer.int16
static class	ModbusServer.int32
static class	ModbusServer.int64
static class	ModbusServer.int8
static enum	ModbusServer.IO
static class	ModbusServer.Packet
static class	ModbusServer.Value

Nested classes/interfaces inherited from class Thread

Thread.Builder, Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field	Description
static boolean[]	coils
static GPIO	gpio
static I2C	i2c
static ArrayList<ModbusServer.I2C_I>	i2cins
static ArrayList<ModbusServer.I2C_O>	i2couts
static Object	i2cslaveaddrlock
static int[]	ins
static boolean	invert
static int[]	outs
static int	port
ServerSocket	ss
static String	version

Fields inherited from class Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor	Description
ModbusServer()

Method Summary

Modifier and Type	Method	Description
static byte	checksum8(byte[] data, int start, int end)
int[]	decodeBytes(String[] fs, boolean allowIO)
static void	main(String[] args)
static void	printArray(String msg, byte[] array)
void	run()

Methods inherited from class Thread

activeCount, checkAccess, clone, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, isVirtual, join, join, join, join, ofPlatform, ofVirtual, onSpinWait, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, sleep, start, startVirtualThread, stop, threadId, toString, yield

Methods inherited from class Object

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

Field Details

version

public static String version

ss

public ServerSocket ss

port

public static int port

outs

public static int[] outs

coils

public static boolean[] coils

ins

public static int[] ins

invert

public static boolean invert

i2cins

public static ArrayList<ModbusServer.I2C_I> i2cins

i2couts

public static ArrayList<ModbusServer.I2C_O> i2couts

i2cslaveaddrlock

public static Object i2cslaveaddrlock

gpio

public static GPIO gpio

i2c

public static I2C i2c

Constructor Details

ModbusServer

public ModbusServer()

Method Details

main

public static void main(String[] args)

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread

decodeBytes

public int[] decodeBytes(String[] fs,
 boolean allowIO)

checksum8

public static byte checksum8(byte[] data,
 int start,
 int end)

printArray

public static void printArray(String msg,
 byte[] array)