modbus.cpp
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#include "modbus.h"
#include "modbusrtu.h"
#include "modbustcp.h"
using namespace osdev::components::modbus;
ModBus::ModBus()
{
}
ModBus::~ModBus()
{
if(m_modbus)
{
m_modbus.reset(nullptr);
}
}
bool ModBus::Open(const ConnectionConfig &connection_config)
{
if(m_modbus == nullptr)
{
switch(connection_config.getConnectionType())
{
case ConnectionConfig::E_CONNECTIONTYPE::SERIAL:
m_modbus = std::make_unique<ModbusRtu>(connection_config);
break;
case ConnectionConfig::E_CONNECTIONTYPE::TCP:
m_modbus = std::make_unique<ModbusTcp>(connection_config);
break;
case ConnectionConfig::E_CONNECTIONTYPE::UNKNOWN:
return false;
break;
}
}
if(m_modbus->isConnected())
{
m_modbus->Close();
}
return m_modbus->Connect();
}
bool ModBus::Close()
{
if(m_modbus != nullptr)
{
m_modbus->Close();
}
return true;
}
Response ModBus::SendRequest(const Request &request)
{
Response oResponse = {};
std::vector<uint8_t> uint8Buffer(static_cast<size_t>(request.getNumberOfRegisters()));
std::vector<uint16_t> uint16Buffer(static_cast<size_t>(request.getNumberOfRegisters()));
switch(request.getFunctionCode())
{
case Request::FunctionCode::FC_UNKNOWN:
{
break;
}
case Request::FunctionCode::FC_READ_COILS:
{
// oResponse.resultValue = m_modbus->readCoils(request.getStartAddress(),request.getNumberOfRegisters(), boolBuffer.data());
break;
}
case Request::FunctionCode::FC_READ_DISCRETE_INPUTS:
{
// oResponse.resultValue = m_modbus->readInputBits(request.getStartAddress(), request.getNumberOfRegisters(), boolBuffer.data());
break;
}
case Request::FunctionCode::FC_READ_HOLDING_REGISTERS:
{
oResponse.resultValue = m_modbus->readHoldingRegisters(request.getStartAddress(), request.getNumberOfRegisters(), uint16Buffer.data());
if (oResponse.resultValue == request.getNumberOfRegisters())
{
for(int index = 0; index < oResponse.resultValue; ++index)
{
oResponse.responseBuffer.emplace_back(static_cast<uint16_t>(uint16Buffer[index]));
}
}
break;
}
case Request::FunctionCode::FC_READ_INPUT_REGISTERS:
{
oResponse.resultValue = m_modbus->readInputRegisters(request.getStartAddress(), request.getNumberOfRegisters(), uint16Buffer.data());
if (oResponse.resultValue == request.getNumberOfRegisters())
{
for(int index = 0; index < oResponse.resultValue; ++index)
{
oResponse.responseBuffer.emplace_back(static_cast<uint16_t>(uint16Buffer[index]));
}
}
break;
}
case Request::FunctionCode::FC_WRITE_SINGLE_COIL:
case Request::FunctionCode::FC_WRITE_SINGLE_REGISTER:
{
oResponse.resultValue = m_modbus->writeCoil(request.getStartAddress(), request.getDataBuffer()[0]);
break;
}
case Request::FunctionCode::FC_WRITE_MULTIPLE_COILS:
{
// const auto buffer = std
break;
}
case Request::FunctionCode::FC_WRITE_MULTIPLE_REGISTERS:
{
break;
}
case Request::FunctionCode::FC_READ_FILE_RECORD:
{
// Not implemented (yet)
break;
}
case Request::FunctionCode::FC_WRITE_FILE_RECORD:
{
// Not implemented (yet)
break;
}
}
return Response();
}