modbus_t Struct Reference

Master query structure: This includes all the necessary fields to make the Master generate a Modbus query. A Master may keep several of these structures and send them cyclically or use them according to program needs. More...

#include <ModbusRtu.h>

Public Attributes
uint8_t	u8id
uint8_t	u8fct
uint16_t	u16RegAdd
uint16_t	u16CoilsNo
uint16_t *	au16reg

Detailed Description

Master query structure: This includes all the necessary fields to make the Master generate a Modbus query. A Master may keep several of these structures and send them cyclically or use them according to program needs.

Definition at line 48 of file ModbusRtu.h.

Member Data Documentation

uint16_t* modbus_t::au16reg

Pointer to memory image in master

Definition at line 53 of file ModbusRtu.h.

uint16_t modbus_t::u16CoilsNo

Number of coils or registers to access

Definition at line 52 of file ModbusRtu.h.

uint16_t modbus_t::u16RegAdd

Address of the first register to access at slave/s

Definition at line 51 of file ModbusRtu.h.

uint8_t modbus_t::u8fct

Function code: 1, 2, 3, 4, 5, 6, 15 or 16

Definition at line 50 of file ModbusRtu.h.

uint8_t modbus_t::u8id

Slave address between 1 and 247. 0 means broadcast

Definition at line 49 of file ModbusRtu.h.

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The documentation for this struct was generated from the following file:

• ModbusRtu.h