package com.intelligt.modbus.jlibmodbus.msg.request;
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import com.intelligt.modbus.jlibmodbus.Modbus;
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import com.intelligt.modbus.jlibmodbus.data.DataHolder;
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import com.intelligt.modbus.jlibmodbus.exception.ModbusNumberException;
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import com.intelligt.modbus.jlibmodbus.exception.ModbusProtocolException;
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import com.intelligt.modbus.jlibmodbus.msg.base.AbstractDataRequest;
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import com.intelligt.modbus.jlibmodbus.msg.base.ModbusResponse;
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import com.intelligt.modbus.jlibmodbus.msg.response.WriteSingleRegisterResponse;
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import com.intelligt.modbus.jlibmodbus.net.stream.base.ModbusInputStream;
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import com.intelligt.modbus.jlibmodbus.net.stream.base.ModbusOutputStream;
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import com.intelligt.modbus.jlibmodbus.utils.ModbusFunctionCode;
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import java.io.IOException;
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/*
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* Copyright (C) 2016 "Invertor" Factory", JSC
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* [http://www.sbp-invertor.ru]
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*
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* This file is part of JLibModbus.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Authors: Vladislav Y. Kochedykov, software engineer.
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* email: vladislav.kochedykov@gmail.com
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*/
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public class WriteSingleRegisterRequest extends AbstractDataRequest {
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private int value;
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public WriteSingleRegisterRequest() {
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super();
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}
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@Override
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protected Class getResponseClass() {
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return WriteSingleRegisterResponse.class;
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}
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@Override
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public ModbusResponse process(DataHolder dataHolder) throws ModbusNumberException {
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WriteSingleRegisterResponse response = (WriteSingleRegisterResponse) getResponse();
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response.setStartAddress(getStartAddress());
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response.setValue(getValue());
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try {
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dataHolder.writeHoldingRegister(getStartAddress(), getValue());
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} catch (ModbusProtocolException e) {
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response.setException();
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response.setModbusExceptionCode(e.getException().getValue());
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}
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return response;
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}
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@Override
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public boolean validateResponseImpl(ModbusResponse response) {
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if (!(response instanceof WriteSingleRegisterResponse)) {
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return false;
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}
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WriteSingleRegisterResponse r = (WriteSingleRegisterResponse) response;
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return r.getStartAddress() == getStartAddress() && r.getValue() == getValue();
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}
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@Override
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final protected void readData(ModbusInputStream fifo) throws IOException {
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try {
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setValue(fifo.readShortBE());
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} catch (ModbusNumberException e) {
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e.printStackTrace();
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}
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}
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@Override
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public int getFunction() {
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return ModbusFunctionCode.WRITE_SINGLE_REGISTER.toInt();
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}
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@Override
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final public void writeData(ModbusOutputStream fifo) throws IOException {
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fifo.writeShortBE(getValue());
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}
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@Override
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protected int dataSize() {
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return 2;
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}
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public int getValue() {
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return value;
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}
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public void setValue(int value) throws ModbusNumberException {
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if (!Modbus.checkRegisterValue(value)) {
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throw new ModbusNumberException("Register value out of range", value);
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}
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this.value = ((short) value) & 0xffff;
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}
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public static void main(String[] args) {
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WriteSingleRegisterRequest request = new WriteSingleRegisterRequest();
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for(int i = 0;i<40000;i++) {
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try {
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System.out.println((short)i);
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request.setValue(i);
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} catch (ModbusNumberException e) {
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e.printStackTrace();
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}
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}
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}
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}
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