modbus_user_callbacks Struct Reference

#include <modbus.h>

Data Fields
int(*	coil_rd )(uint16_t addr, bool *state)
int(*	coil_wr )(uint16_t addr, bool state)
int(*	discrete_input_rd )(uint16_t addr, bool *state)
int(*	input_reg_rd )(uint16_t addr, uint16_t *reg)
int(*	input_reg_rd_fp )(uint16_t addr, float *reg)
int(*	holding_reg_rd )(uint16_t addr, uint16_t *reg)
int(*	holding_reg_wr )(uint16_t addr, uint16_t reg)
int(*	holding_reg_rd_fp )(uint16_t addr, float *reg)
int(*	holding_reg_wr_fp )(uint16_t addr, float reg)

Detailed Description

Modbus Server User Callback structure

Field Documentation

coil_rd

int(* modbus_user_callbacks::coil_rd) (uint16_t addr, bool *state)

Coil read callback

coil_wr

int(* modbus_user_callbacks::coil_wr) (uint16_t addr, bool state)

Coil write callback

discrete_input_rd

int(* modbus_user_callbacks::discrete_input_rd) (uint16_t addr, bool *state)

Discrete Input read callback

holding_reg_rd

int(* modbus_user_callbacks::holding_reg_rd) (uint16_t addr, uint16_t *reg)

Holding Register read callback

holding_reg_rd_fp

int(* modbus_user_callbacks::holding_reg_rd_fp) (uint16_t addr, float *reg)

Floating Point Holding Register read callback

holding_reg_wr

int(* modbus_user_callbacks::holding_reg_wr) (uint16_t addr, uint16_t reg)

Holding Register write callback

holding_reg_wr_fp

int(* modbus_user_callbacks::holding_reg_wr_fp) (uint16_t addr, float reg)

Floating Point Holding Register write callback

input_reg_rd

int(* modbus_user_callbacks::input_reg_rd) (uint16_t addr, uint16_t *reg)

Input Register read callback

input_reg_rd_fp

int(* modbus_user_callbacks::input_reg_rd_fp) (uint16_t addr, float *reg)

Floating Point Input Register read callback

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

• include/modbus/modbus.h