slave_func.impl.h File Reference

Slave's functions for parsing requests (implementation) More...

#include "slave_func.h"
#include "slave.h"

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Functions
	ModbusErrorInfomodbusParseRequest01020304 (ModbusSlave *status, uint8_t function, const uint8_t *requestPDU, uint8_t requestLength)
	Handles requests 01, 02, 03 and 04 (Read Multiple XX) and generates response.
	ModbusErrorInfomodbusParseRequest0506 (ModbusSlave *status, uint8_t function, const uint8_t *requestPDU, uint8_t requestLength)
	Handles requests 05 and 06 (Write Single XX) and generates response.
	ModbusErrorInfomodbusParseRequest1516 (ModbusSlave *status, uint8_t function, const uint8_t *requestPDU, uint8_t requestLength)
	Handles requests 15 and 16 (Write Multiple XX) and generates response.
	ModbusErrorInfomodbusParseRequest22 (ModbusSlave *status, uint8_t function, const uint8_t *requestPDU, uint8_t requestLength)
	Handles request 22 (Mask Write Register) and generates response.

Detailed Description

Slave's functions for parsing requests (implementation)

Function Documentation

ModbusErrorInfomodbusParseRequest01020304()

ModbusErrorInfomodbusParseRequest01020304	(	ModbusSlave *	status,
		uint8_t	function,
		const uint8_t *	requestPDU,
		uint8_t	requestLength )

Handles requests 01, 02, 03 and 04 (Read Multiple XX) and generates response.

Parameters

function	function code
requestPDU	pointer to the PDU section of the request
requestLength	length of the PDU section in bytes

Returns

MODBUS_GENERAL_ERROR(ALLOC) on memory allocation error

MODBUS_GENERAL_ERROR(FUNCTION) if function is not 1, 2, 3 or 4

MODBUS_NO_ERROR() on success

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ModbusErrorInfomodbusParseRequest0506()

ModbusErrorInfomodbusParseRequest0506	(	ModbusSlave *	status,
		uint8_t	function,
		const uint8_t *	requestPDU,
		uint8_t	requestLength )

Handles requests 05 and 06 (Write Single XX) and generates response.

Parameters

function	function code
requestPDU	pointer to the PDU section of the request
requestLength	length of the PDU section in bytes

Returns

MODBUS_GENERAL_ERROR(ALLOC) on memory allocation error

MODBUS_NO_ERROR() on success

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ModbusErrorInfomodbusParseRequest1516()

ModbusErrorInfomodbusParseRequest1516	(	ModbusSlave *	status,
		uint8_t	function,
		const uint8_t *	requestPDU,
		uint8_t	requestLength )

Handles requests 15 and 16 (Write Multiple XX) and generates response.

Parameters

function	function code
requestPDU	pointer to the PDU section of the request
requestLength	length of the PDU section in bytes

Returns

MODBUS_GENERAL_ERROR(ALLOC) on memory allocation error

MODBUS_NO_ERROR() on success

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ModbusErrorInfomodbusParseRequest22()

ModbusErrorInfomodbusParseRequest22	(	ModbusSlave *	status,
		uint8_t	function,
		const uint8_t *	requestPDU,
		uint8_t	requestLength )

Handles request 22 (Mask Write Register) and generates response.

Parameters

function	function code
requestPDU	pointer to the PDU section of the request
requestLength	length of the PDU section in bytes

Returns

MODBUS_GENERAL_ERROR(ALLOC) on memory allocation error

MODBUS_NO_ERROR() on success

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