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Beslan
2020-11-25 14:59:09 +03:00
commit b5d109355b
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ModbusRTU.h Normal file
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/*
ModbusRTU Library for ESP8266/ESP32
Copyright (C) 2019-2020 Alexander Emelianov (a.m.emelianov@gmail.com)
https://github.com/emelianov/modbus-esp8266
This code is licensed under the BSD New License. See LICENSE.txt for more info.
*/
#pragma once
#include "mbed.h"
#include <Modbus.h>
#if defined(ESP8266)
#include <SoftwareSerial.h>
#endif
//#define MODBUSRTU_DEBUG
#define MODBUSRTU_BROADCAST 0
#define MB_RESERVE 248
#define MB_SERIAL_BUFFER 128
#define MB_MAX_TIME 10
//#define MODBUSRTU_TIMEOUT 1s
#define MODBUSRTU_ADD_REG
//#define MB_STATIC_FRAME 1
class ModbusRTU : public Modbus {
protected:
CircularBuffer<char, 200> RX_RingBuff;
UnbufferedSerial* _port;
DigitalOut* _txPin;
void SerialRXHandler();
void SerialTXHandler();
uint8_t isDataAvailable(void);
uint8_t Read(void);
// unsigned int
Kernel::Clock::duration MODBUSRTU_TIMEOUT = 1s;
Kernel::Clock::duration _t; // inter-frame delay in mS
Kernel::Clock::time_point t; // time sience last data byte arrived
bool isMaster = false;
uint8_t _slaveId;
Kernel::Clock::time_point _timestamp;
cbTransaction _cb = nullptr;
void* _data = nullptr;
uint8_t* _sentFrame = nullptr;
TAddress _sentReg = COIL(0);
uint16_t maxRegs = 0x007D;
#ifdef ESP32
portMUX_TYPE mux = portMUX_INITIALIZER_UNLOCKED;
#endif
bool send(uint8_t slaveId, TAddress startreg, cbTransaction cb, void* data = nullptr, bool waitResponse = true);
// Prepare and send ModbusRTU frame. _frame buffer and _len should be filled with Modbus data
// slaveId - slave id
// startreg - first local register to save returned data to (miningless for write to slave operations)
// cb - transaction callback function
// data - if not null use buffer to save returned data instead of local registers
bool rawSend(uint8_t slaveId, uint8_t* frame, uint8_t len);
bool cleanup(); // Free clients if not connected and remove timedout transactions and transaction with forced events
uint16_t crc16(uint8_t address, uint8_t* frame, uint8_t pdulen);
public:
void setBaudrate(uint32_t baud = -1);
#if defined(ESP8266)
bool begin(BufferedSerial* port, int16_t txPin = -1);
#endif
bool begin(UnbufferedSerial* port, PinName txPin = NC);
bool begin(UnbufferedSerial* port);
void task();
void master() { isMaster = true; };
void slave(uint8_t slaveId) { _slaveId = slaveId; };
uint8_t slave() { return _slaveId; }
uint32_t eventSource() override { return _slaveId; }
uint16_t writeHreg(uint8_t slaveId, uint16_t offset, uint16_t value, cbTransaction cb = nullptr);
uint16_t writeCoil(uint8_t slaveId, uint16_t offset, bool value, cbTransaction cb = nullptr);
uint16_t readCoil(uint8_t slaveId, uint16_t offset, bool* value, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t writeCoil(uint8_t slaveId, uint16_t offset, bool* value, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t writeHreg(uint8_t slaveId, uint16_t offset, uint16_t* value, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t readIsts(uint8_t slaveId, uint16_t offset, bool* value, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t readHreg(uint8_t slaveId, uint16_t offset, uint16_t* value, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t readIreg(uint8_t slaveId, uint16_t offset, uint16_t* value, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t pushCoil(uint8_t slaveId, uint16_t to, uint16_t from, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t pullCoil(uint8_t slaveId, uint16_t from, uint16_t to, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t pullIsts(uint8_t slaveId, uint16_t from, uint16_t to, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t pushHreg(uint8_t slaveId, uint16_t to, uint16_t from, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t pullHreg(uint8_t slaveId, uint16_t from, uint16_t to, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t pullIreg(uint8_t slaveId, uint16_t from, uint16_t to, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t pullHregToIreg(uint8_t slaveId, uint16_t offset, uint16_t startreg, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t pullCoilToIsts(uint8_t slaveId, uint16_t offset, uint16_t startreg, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t pushIstsToCoil(uint8_t slaveId, uint16_t to, uint16_t from, uint16_t numregs = 1, cbTransaction cb = nullptr);
uint16_t pushIregToHreg(uint8_t slaveId, uint16_t to, uint16_t from, uint16_t numregs = 1, cbTransaction cb = nullptr);
};