Функции
size_t	readNextData (UTCPStream *tcp, std::queue< unsigned char > &qrecv, size_t max=100)

size_t	getNextData (UTCPStream tcp, std::queue< unsigned char > &qrecv, unsigned char buf, size_t len)

ModbusRTU::mbErrCode	sendData (UTCPStream tcp, unsigned char buf, size_t len)

size_t	readDataFD (int fd, std::queue< unsigned char > &qrecv, size_t max=100, size_t attempts=1)

size_t	getDataFD (int fd, std::queue< unsigned char > &qrecv, unsigned char *buf, size_t len, size_t attempts=1)

ModbusRTU::mbErrCode	sendDataFD (int fd, unsigned char *buf, size_t len)

Подробное описание

ModbusTCP core functions

Функции