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jamod is an object oriented implementation of the Modbus protocol, realized 100% in Java. It allows to quickly
realize master and slave applications in various transport flavors (IP and serial).
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/***
* Copyright 2002-2010 jamod development team
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
***/
//////////////////////////////////////////////////////////////////////////
//
// File: SerialFacadeTest.java
//
// Description: Unit test driver to exerecise the methods for
// ModbusSerialMaster class.
//
// Programmer: JDC (CCC), Wed Feb 4 11:54:23 2004
//
// Change History:
//
// $Log: SerialFacadeTest.java,v $
// Revision 1.2 2004/10/21 16:44:36 wimpi
// Please see status file for changes.
//
// Revision 1.1 2004/09/30 01:45:38 jdcharlton
// Test driver for ModbusSerialMaster facade
//
//
//
//////////////////////////////////////////////////////////////////////////
package net.wimpi.modbus.cmd;
import net.wimpi.modbus.Modbus;
import net.wimpi.modbus.ModbusException;
import net.wimpi.modbus.facade.ModbusSerialMaster;
import net.wimpi.modbus.procimg.InputRegister;
import net.wimpi.modbus.procimg.Register;
import net.wimpi.modbus.util.BitVector;
import net.wimpi.modbus.util.ModbusUtil;
import net.wimpi.modbus.util.SerialParameters;
public class SerialFacadeTest {
public static void main(String[] args) {
int inChar = -1;
int result = 0;
boolean finished = false;
int slaveId = 88;
String portname = null;
ModbusSerialMaster msm = null;
try {
//1. Setup the parameters
if (args.length < 2) {
printUsage();
System.exit(1);
} else {
try {
portname = args[0];
slaveId = Integer.parseInt(args[1]);
} catch (Exception ex) {
ex.printStackTrace();
printUsage();
System.exit(1);
}
}
System.out.println(" sending test messages to slave: " + slaveId);
System.out.println("net.wimpi.modbus.debug set to: " +
System.getProperty("net.wimpi.modbus.debug"));
System.out.println("Hit enter to start and to terminate the test.");
inChar = System.in.read();
if ((inChar == 's') || (inChar == 'S')) {
System.out.println("Exiting");
System.exit(0);
}
//2. Setup serial parameters
SerialParameters params = new SerialParameters();
params.setPortName(portname);
params.setBaudRate(38400);
params.setDatabits(8);
params.setParity("None");
params.setStopbits(1);
params.setEncoding("rtu");
params.setEcho(true);
if (Modbus.debug) System.out.println("Encoding [" + params.getEncoding() + "]");
//3. Create the master facade
msm = new ModbusSerialMaster(params);
msm.connect();
do {
if (msm.writeCoil(slaveId, 4, true) == true) {
System.out.println("Set output 5 to true");
} else {
System.err.println("Error setting slave " + slaveId + " output 5");
}
BitVector coils = msm.readCoils(slaveId, 0, 8);
if (coils != null) {
System.out.print("Coils:");
for (int i = 0; i < coils.size(); i++) {
System.out.print(" " + i + ": " + coils.getBit(i));
}
System.out.println();
try {
msm.writeMultipleCoils(slaveId, 0, coils);
} catch (ModbusException ex) {
System.out.println("Error writing coils: " + result);
}
} else {
System.out.println("Outputs: null");
msm.disconnect();
System.exit(-1);
}
BitVector digInp = msm.readInputDiscretes(slaveId, 0, 8);
if (digInp != null) {
System.out.print("Digital Inputs:");
for (int i = 0; i < digInp.size(); i++) {
System.out.print(" " + i + ": " + digInp.getBit(i));
}
System.out.println();
System.out.println("Inputs: " + ModbusUtil.toHex(digInp.getBytes()));
} else {
System.out.println("Inputs: null");
msm.disconnect();
System.exit(-1);
}
InputRegister[] ai = null;
for (int i = 1000; i < 1010; i++) {
ai = msm.readInputRegisters(slaveId, i, 1);
if (ai != null) {
System.out.print("Tag " + i + ": ");
for (int n = 0; n < ai.length; n++) {
System.out.print(" " + ai[n].getValue());
}
System.out.println();
} else {
System.out.println("Tag: " + i + " null");
msm.disconnect();
System.exit(-1);
}
}
Register[] regs = null;
for (int i = 1000; i < 1005; i++) {
regs = msm.readMultipleRegisters(slaveId, i, 1);
if (regs != null) {
System.out.print("RWRegisters " + i + " length: " + regs.length);
for (int n = 0; n < regs.length; n++) {
System.out.print(" " + regs[n].getValue());
}
System.out.println();
} else {
System.out.println("RWRegisters " + i + ": null");
msm.disconnect();
System.exit(-1);
}
}
regs = msm.readMultipleRegisters(slaveId, 0, 10);
System.out.println("Registers: ");
if (regs != null) {
System.out.print("regs :");
for (int n = 0; n < regs.length; n++) {
System.out.print(" " + n + "= " + regs[n]);
}
System.out.println();
} else {
System.out.println("Registers: null");
msm.disconnect();
System.exit(-1);
}
while (System.in.available() > 0) {
inChar = System.in.read();
if ((inChar == 's') || (inChar == 'S')) {
finished = true;
}
}
} while (!finished);
} catch (Exception e) {
System.err.println("SerialFacadeTest driver: " + e);
e.printStackTrace();
}
msm.disconnect();
}
private static void printUsage() {
System.out.println("java net.wimpi.modbus.cmd.SerialAITest ");
}//printUsage
}