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CLI test for MODBUS RTU FC05 "Write Single Coils" with JAMOD
/**
* 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.
***/
package net.wimpi.modbus.cmd;
import net.wimpi.modbus.Modbus;
import net.wimpi.modbus.ModbusCoupler;
import net.wimpi.modbus.io.ModbusSerialTransaction;
import net.wimpi.modbus.msg.ModbusRequest;
import net.wimpi.modbus.msg.WriteCoilRequest;
import net.wimpi.modbus.net.SerialConnection;
// import net.wimpi.modbus.util.BitVector;
import net.wimpi.modbus.util.SerialParameters;
/**
* Class that implements a simple commandline
* tool for reading an analog input.
*
* @author Dieter Wimberger
* @version @version@ (@date@)
*/
public class SerialDOTest {
public static void main(String[] args) {
SerialConnection con = null;
ModbusSerialTransaction trans = null;
ModbusRequest req = null;
String portname = null;
int unitid = 0;
int ref = 0;
boolean count = false;
int repeat = 1;
try {
// 1. Setup the parameters
if (args.length < 4) {
printUsage();
System.exit(1);
} else {
try {
portname = args[0];
unitid = Integer.parseInt(args[1]);
ref = Integer.parseInt(args[2]);
count = "true".equals(args[3]);
if (args.length == 5) {
repeat = Integer.parseInt(args[4]);
}
} catch (Exception ex) {
ex.printStackTrace();
printUsage();
System.exit(1);
}
}
// 2. Set slave identifier for master response parsing
ModbusCoupler.getReference().setUnitID(unitid);
System.out.println("net.wimpi.modbus.debug set to: " + System.getProperty("net.wimpi.modbus.debug"));
// 3. Setup serial parameters
SerialParameters params = new SerialParameters();
params.setPortName(portname);
params.setBaudRate(9600);
params.setDatabits(8);
params.setParity("None");
params.setStopbits(1);
params.setEncoding("rtu");
// params.setEcho(false);
if (Modbus.debug) {
System.out.println("Encoding [" + params.getEncoding() + "]");
}
// 4. Open the connection
con = new SerialConnection(params);
con.open();
// 5. Prepare a request
req = new WriteCoilRequest(ref, count);
req.setUnitID(unitid);
req.setHeadless();
if (Modbus.debug) {
System.out.println("Request: " + req.getHexMessage());
}
// 6. Prepare the transaction
trans = new ModbusSerialTransaction(con);
trans.setRequest(req);
// 7. Execute the transaction repeat times
int k = 0;
do {
trans.execute();
// if (Modbus.debug) {
System.out.println("Response: " + trans.getResponse().getHexMessage());
// }
k++;
} while (k < repeat);
// 8. Close the connection
con.close();
} catch (Exception ex) {
ex.printStackTrace();
// Close the connection
con.close();
}
}// main
private static void printUsage() {
System.out.println(
"java net.wimpi.modbus.cmd.SerialDOTest <portname [String]> <address{:<port>} [String]> <register [int16]> <state [boolean]> {<repeat [int]>}");
}// printUsage
}// class SerialDOTest
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