esphome::modbus Namespace Reference

Data Structures
class	Modbus
class	ModbusDevice

Enumerations
enum	ModbusRole { CLIENT , SERVER }
enum class	ModbusFunctionCode : uint8_t {   CUSTOM = 0x00 , READ_COILS = 0x01 , READ_DISCRETE_INPUTS = 0x02 , READ_HOLDING_REGISTERS = 0x03 ,   READ_INPUT_REGISTERS = 0x04 , WRITE_SINGLE_COIL = 0x05 , WRITE_SINGLE_REGISTER = 0x06 , READ_EXCEPTION_STATUS = 0x07 ,   DIAGNOSTICS = 0x08 , GET_COMM_EVENT_COUNTER = 0x0B , GET_COMM_EVENT_LOG = 0x0C , WRITE_MULTIPLE_COILS = 0x0F ,   WRITE_MULTIPLE_REGISTERS = 0x10 , REPORT_SERVER_ID = 0x11 , READ_FILE_RECORD = 0x14 , WRITE_FILE_RECORD = 0x15 ,   MASK_WRITE_REGISTER = 0x16 , READ_WRITE_MULTIPLE_REGISTERS = 0x17 , READ_FIFO_QUEUE = 0x18 }
enum class	ModbusRegisterType : uint8_t {   CUSTOM = 0x00 , COIL = 0x01 , DISCRETE_INPUT = 0x02 , HOLDING = 0x03 ,   READ = 0x04 }
enum class	ModbusExceptionCode : uint8_t {   ILLEGAL_FUNCTION = 0x01 , ILLEGAL_DATA_ADDRESS = 0x02 , ILLEGAL_DATA_VALUE = 0x03 , SERVICE_DEVICE_FAILURE = 0x04 ,   ACKNOWLEDGE = 0x05 , SERVER_DEVICE_BUSY = 0x06 , MEMORY_PARITY_ERROR = 0x08 , GATEWAY_PATH_UNAVAILABLE = 0x0A ,   GATEWAY_TARGET_DEVICE_FAILED_TO_RESPOND = 0x0B }

Functions
bool	operator== (ModbusFunctionCode lhs, uint8_t rhs)
bool	operator== (uint8_t lhs, ModbusFunctionCode rhs)
bool	operator!= (ModbusFunctionCode lhs, uint8_t rhs)
bool	operator!= (uint8_t lhs, ModbusFunctionCode rhs)
bool	operator< (ModbusFunctionCode lhs, uint8_t rhs)
bool	operator< (uint8_t lhs, ModbusFunctionCode rhs)
bool	operator<= (ModbusFunctionCode lhs, uint8_t rhs)
bool	operator<= (uint8_t lhs, ModbusFunctionCode rhs)
bool	operator> (ModbusFunctionCode lhs, uint8_t rhs)
bool	operator> (uint8_t lhs, ModbusFunctionCode rhs)
bool	operator>= (ModbusFunctionCode lhs, uint8_t rhs)
bool	operator>= (uint8_t lhs, ModbusFunctionCode rhs)

Variables
const uint8_t	FUNCTION_CODE_USER_DEFINED_SPACE_1_INIT = 65
	Modbus definitions from specs: https://modbus.org/docs/Modbus_Application_Protocol_V1_1b3.pdf.
const uint8_t	FUNCTION_CODE_USER_DEFINED_SPACE_1_END = 72
const uint8_t	FUNCTION_CODE_USER_DEFINED_SPACE_2_INIT = 100
const uint8_t	FUNCTION_CODE_USER_DEFINED_SPACE_2_END = 110
const uint8_t	FUNCTION_CODE_MASK = 0x7F
const uint8_t	FUNCTION_CODE_EXCEPTION_MASK = 0x80
const uint8_t	MAX_NUM_OF_REGISTERS_TO_WRITE = 123
const uint8_t	MAX_NUM_OF_REGISTERS_TO_READ = 125

Enumeration Type Documentation

ModbusExceptionCode

enum class esphome::modbus::ModbusExceptionCode : uint8_t

strong

Enumerator
ILLEGAL_FUNCTION
ILLEGAL_DATA_ADDRESS
ILLEGAL_DATA_VALUE
SERVICE_DEVICE_FAILURE
ACKNOWLEDGE
SERVER_DEVICE_BUSY
MEMORY_PARITY_ERROR
GATEWAY_PATH_UNAVAILABLE
GATEWAY_TARGET_DEVICE_FAILED_TO_RESPOND

Definition at line 66 of file modbus_definitions.h.

ModbusFunctionCode

enum class esphome::modbus::ModbusFunctionCode : uint8_t

strong

Enumerator
CUSTOM
READ_COILS
READ_DISCRETE_INPUTS
READ_HOLDING_REGISTERS
READ_INPUT_REGISTERS
WRITE_SINGLE_COIL
WRITE_SINGLE_REGISTER
READ_EXCEPTION_STATUS
DIAGNOSTICS
GET_COMM_EVENT_COUNTER
GET_COMM_EVENT_LOG
WRITE_MULTIPLE_COILS
WRITE_MULTIPLE_REGISTERS
REPORT_SERVER_ID
READ_FILE_RECORD
WRITE_FILE_RECORD
MASK_WRITE_REGISTER
READ_WRITE_MULTIPLE_REGISTERS
READ_FIFO_QUEUE

Definition at line 17 of file modbus_definitions.h.

ModbusRegisterType

enum class esphome::modbus::ModbusRegisterType : uint8_t

strong

Enumerator
CUSTOM
COIL
DISCRETE_INPUT
HOLDING
READ

Definition at line 54 of file modbus_definitions.h.

ModbusRole

enum esphome::modbus::ModbusRole

Enumerator
CLIENT
SERVER

Definition at line 13 of file modbus.h.

Function Documentation

operator!=() [1/2]

bool esphome::modbus::operator!= ( ModbusFunctionCode lhs, uint8_t rhs )

inline

Definition at line 42 of file modbus_definitions.h.

operator!=() [2/2]

bool esphome::modbus::operator!= ( uint8_t lhs, ModbusFunctionCode rhs )

inline

Definition at line 43 of file modbus_definitions.h.

operator<() [1/2]

bool esphome::modbus::operator< ( ModbusFunctionCode lhs, uint8_t rhs )

inline

Definition at line 44 of file modbus_definitions.h.

operator<() [2/2]

bool esphome::modbus::operator< ( uint8_t lhs, ModbusFunctionCode rhs )

inline

Definition at line 45 of file modbus_definitions.h.

operator<=() [1/2]

bool esphome::modbus::operator<= ( ModbusFunctionCode lhs, uint8_t rhs )

inline

Definition at line 46 of file modbus_definitions.h.

operator<=() [2/2]

bool esphome::modbus::operator<= ( uint8_t lhs, ModbusFunctionCode rhs )

inline

Definition at line 47 of file modbus_definitions.h.

operator==() [1/2]

bool esphome::modbus::operator== ( ModbusFunctionCode lhs, uint8_t rhs )

inline

Definition at line 40 of file modbus_definitions.h.

operator==() [2/2]

bool esphome::modbus::operator== ( uint8_t lhs, ModbusFunctionCode rhs )

inline

Definition at line 41 of file modbus_definitions.h.

operator>() [1/2]

bool esphome::modbus::operator> ( ModbusFunctionCode lhs, uint8_t rhs )

inline

Definition at line 48 of file modbus_definitions.h.

operator>() [2/2]

bool esphome::modbus::operator> ( uint8_t lhs, ModbusFunctionCode rhs )

inline

Definition at line 49 of file modbus_definitions.h.

operator>=() [1/2]

bool esphome::modbus::operator>= ( ModbusFunctionCode lhs, uint8_t rhs )

inline

Definition at line 50 of file modbus_definitions.h.

operator>=() [2/2]

bool esphome::modbus::operator>= ( uint8_t lhs, ModbusFunctionCode rhs )

inline

Definition at line 51 of file modbus_definitions.h.

Variable Documentation

FUNCTION_CODE_EXCEPTION_MASK

const uint8_t esphome::modbus::FUNCTION_CODE_EXCEPTION_MASK = 0x80

Definition at line 64 of file modbus_definitions.h.

FUNCTION_CODE_MASK

const uint8_t esphome::modbus::FUNCTION_CODE_MASK = 0x7F

Definition at line 63 of file modbus_definitions.h.

FUNCTION_CODE_USER_DEFINED_SPACE_1_END

const uint8_t esphome::modbus::FUNCTION_CODE_USER_DEFINED_SPACE_1_END = 72

Definition at line 12 of file modbus_definitions.h.

FUNCTION_CODE_USER_DEFINED_SPACE_1_INIT

const uint8_t esphome::modbus::FUNCTION_CODE_USER_DEFINED_SPACE_1_INIT = 65

Modbus definitions from specs: https://modbus.org/docs/Modbus_Application_Protocol_V1_1b3.pdf.

Definition at line 11 of file modbus_definitions.h.

FUNCTION_CODE_USER_DEFINED_SPACE_2_END

const uint8_t esphome::modbus::FUNCTION_CODE_USER_DEFINED_SPACE_2_END = 110

Definition at line 15 of file modbus_definitions.h.

FUNCTION_CODE_USER_DEFINED_SPACE_2_INIT

const uint8_t esphome::modbus::FUNCTION_CODE_USER_DEFINED_SPACE_2_INIT = 100

Definition at line 14 of file modbus_definitions.h.

MAX_NUM_OF_REGISTERS_TO_READ

const uint8_t esphome::modbus::MAX_NUM_OF_REGISTERS_TO_READ = 125

Definition at line 83 of file modbus_definitions.h.

MAX_NUM_OF_REGISTERS_TO_WRITE

const uint8_t esphome::modbus::MAX_NUM_OF_REGISTERS_TO_WRITE = 123

Definition at line 79 of file modbus_definitions.h.