1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2017 The Qt Company Ltd. 4 ** Contact: http://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtSerialBus module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL3$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see http://www.qt.io/terms-conditions. For further 15 ** information use the contact form at http://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPLv3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or later as published by the Free 28 ** Software Foundation and appearing in the file LICENSE.GPL included in 29 ** the packaging of this file. Please review the following information to 30 ** ensure the GNU General Public License version 2.0 requirements will be 31 ** met: http://www.gnu.org/licenses/gpl-2.0.html. 32 ** 33 ** $QT_END_LICENSE$ 34 ** 35 ****************************************************************************/ 36 37 #ifndef QMODBUSCLIENT_H 38 #define QMODBUSCLIENT_H 39 40 #include <QtCore/qobject.h> 41 #include <QtSerialBus/qmodbusdataunit.h> 42 #include <QtSerialBus/qmodbusdevice.h> 43 #include <QtSerialBus/qmodbuspdu.h> 44 #include <QtSerialBus/qmodbusreply.h> 45 46 QT_BEGIN_NAMESPACE 47 48 class QModbusClientPrivate; 49 50 class Q_SERIALBUS_EXPORT QModbusClient : public QModbusDevice 51 { 52 Q_OBJECT 53 Q_DECLARE_PRIVATE(QModbusClient) 54 Q_PROPERTY(int timeout READ timeout WRITE setTimeout NOTIFY timeoutChanged) 55 56 public: 57 explicit QModbusClient(QObject *parent = nullptr); 58 ~QModbusClient(); 59 60 QModbusReply *sendReadRequest(const QModbusDataUnit &read, int serverAddress); 61 QModbusReply *sendWriteRequest(const QModbusDataUnit &write, int serverAddress); 62 QModbusReply *sendReadWriteRequest(const QModbusDataUnit &read, const QModbusDataUnit &write, 63 int serverAddress); 64 QModbusReply *sendRawRequest(const QModbusRequest &request, int serverAddress); 65 66 int timeout() const; 67 void setTimeout(int newTimeout); 68 69 int numberOfRetries() const; 70 void setNumberOfRetries(int number); 71 72 Q_SIGNALS: 73 void timeoutChanged(int newTimeout); 74 75 protected: 76 QModbusClient(QModbusClientPrivate &dd, QObject *parent = nullptr); 77 78 virtual bool processResponse(const QModbusResponse &response, QModbusDataUnit *data); 79 virtual bool processPrivateResponse(const QModbusResponse &response, QModbusDataUnit *data); 80 }; 81 82 QT_END_NAMESPACE 83 84 #endif // QMODBUSCLIENT_H 85