esp-idf/examples/protocols/modbus/mb_example_common/include/modbus_params.h

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/*
* SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
/*=====================================================================================
* Description:
* The Modbus parameter structures used to define Modbus instances that
* can be addressed by Modbus protocol. Define these structures per your needs in
* your application. Below is just an example of possible parameters.
*====================================================================================*/
#ifndef _DEVICE_PARAMS
#define _DEVICE_PARAMS
// This file defines structure of modbus parameters which reflect correspond modbus address space
// for each modbus register type (coils, discreet inputs, holding registers, input registers)
#pragma pack(push, 1)
typedef struct
{
uint8_t discrete_input0:1;
uint8_t discrete_input1:1;
uint8_t discrete_input2:1;
uint8_t discrete_input3:1;
uint8_t discrete_input4:1;
uint8_t discrete_input5:1;
uint8_t discrete_input6:1;
uint8_t discrete_input7:1;
uint8_t discrete_input_port1:8;
} discrete_reg_params_t;
#pragma pack(pop)
#pragma pack(push, 1)
typedef struct
{
uint8_t coils_port0;
uint8_t coils_port1;
} coil_reg_params_t;
#pragma pack(pop)
#pragma pack(push, 1)
typedef struct
{
float input_data0; // 0
float input_data1; // 2
float input_data2; // 4
float input_data3; // 6
uint16_t data[150]; // 8 + 150 = 158
float input_data4; // 158
float input_data5;
float input_data6;
float input_data7;
uint16_t data_block1[150];
} input_reg_params_t;
#pragma pack(pop)
#pragma pack(push, 1)
typedef struct
{
float holding_data0;
float holding_data1;
float holding_data2;
float holding_data3;
uint16_t test_regs[150];
float holding_data4;
float holding_data5;
float holding_data6;
float holding_data7;
} holding_reg_params_t;
#pragma pack(pop)
extern holding_reg_params_t holding_reg_params;
extern input_reg_params_t input_reg_params;
extern coil_reg_params_t coil_reg_params;
extern discrete_reg_params_t discrete_reg_params;
#endif // !defined(_DEVICE_PARAMS)