modbus_state_t Struct Reference

modbus_state_t structure holds internal state of the Modbus driver. More...

#include <modbus.h>

Collaboration diagram for modbus_state_t:

Data Fields
const struct modbus_t *	Module
	Pointer to the Modbus driver instance structure.
struct process	Process
	Process running the instance (it starts during the MbInit() function call)
struct mwork_t	RespTOwork
	Client' timeout counter.
uint32_t	RespTO
	Client' timeout value in ms.
struct uwork_t	T35work
	UART 3.5 chars timeout timer.
uint32_t	TimerT35
	UART 3.5 chars timeout value in us.
MbException_t	Exception
	Last communication status.
MbState_t	MbState
	State of the instance (disables/enabled/busy)
uint8_t	MyAddress
	Slave address of the interface on the Modbus (semistatic, assigned in MbInit() function call)
uint8_t	RcvAddress
	Slave address of the currently processing Modbus frame.
uint8_t	DestAddress
	Slave address of the last sent Modbus frame (client only)
uint16_t	DestReg
	First destination register of the last sent Read command (client only)
uint8_t *	MbFrame
	Current pointer to the processing/assembling Modbus frame.
uint16_t	MbFrameLen
	Current length of the processing/assembling Modbus frame.
void *	Transport
	Pointer to the structure holding transport instance (UART, TCP, TLS...)
uint8_t	SlaveIdBuf [MB_SLAVEID_BUF_LEN]
	Buffer holding the Slave ID string.
uint16_t	SlaveIdLen
	Length of the Slave ID string.
uint8_t	SndState
	UART send state for RTU and ASCII.
uint8_t	RcvState
	UART receive state for RTU and ASCII.
uint8_t	UartBuf [MB_SER_PDU_SIZE_MAX]
	Main buffer for assembling the receiving/transmitting Modbus frame.
uint8_t *	UartSndBufCur
	Current sending pointer in the UartBuf.
uint16_t	UartSndBufCount
	Counter of bytes sent from the UartBuf.
uint16_t	UartRcvBufPos
	Counter of bytes received to the UartBuf.
uint8_t	LastFunction
	For client only: function of last sent packet.
mb_transfer_file_t	TransferFile
	Variables related to Transfer File function.

Detailed Description

modbus_state_t structure holds internal state of the Modbus driver.

Definition at line 420 of file modbus.h.