msz_rab.lib

modbus 运用事例

			    while (serCwrUsed() || \
			    		  BitRdPortI(SCSR,2) || \
			    		  BitRdPortI(SCSR,3)); 
				
				// Turn off the RS485 transmitter by doing the following;
				
				//	PORT:				The parrallel port (PADR,PBDR,PCDR etc)          
				// PORTShadow: 	The Shadow register of the port
				//	OFF_VALUE:		1 or 0
				//	PORT_BIT:		parrallel port bit (0-7)
				
					BitWrPortI(PORT,&PORTShadow, OFF_VALUE, PORT_BIT);
					
				// if your product is a Zworld SBC, you can do the following 
				//	instead
				
					ser485Rx();
					
				//  Flush out the serial port read buffer, so you are ready for
				//  the next packet.
					
					serCrdFlush();	 
			  }			

RETURN VALUE: none
END DESCRIPTION ******************************************************/

/* START FUNCTION DESCRIPTION *****************************************
msCtx                         <MSZ_RAB.LIB>

NOTE: MSZ_RAB.LIB functions are generally not reentrant.

SYNTAX: 			void	msCtx  (void)

DESCRIPTION: 	User defineable function for enabling the rs485
					transmitter.  This function is needed in your application
					code.  If you are doing RS232, you need only to have
					an empty function like
					
					void msCtx(void)
					{
					}
					
					For rs485 control, you can do the following;

EXAMPLE:	  void msCtx(void)
			  {
			    // Ensure that all the data has bent sent.
			    
			    / Turn on the RS485 transmitter by doing the following;      
				
				//	PORT:				The parrallel port (PADR,PBDR,PCDR etc)          
				// PORTShadow: 	The Shadow register of the port
				//	ON_VALUE:		1 or 0
				//	PORT_BIT:		parrallel port bit (0-7)
				
					BitWrPortI(PORT,&PORTShadow, ON_VALUE, PORT_BIT);
			    
			    				
				//  If your product is a Zworld SBC, you can do the following
				
					ser485Tx();
					
				
			  }			

RETURN VALUE: none
END DESCRIPTION ******************************************************/

/* START FUNCTION DESCRIPTION *****************************************
msDinit                         <MSZ_RAB.LIB>

NOTE: MSZ_RAB.LIB functions are generally not reentrant.

SYNTAX: 	int msDinit(unsigned qBaud)

DESCRIPTION: User function for
				 Initializing serial port D as a Modbus ASCII Slave.
				 
				 This function must reside in your application code.
				 Typical code for this function would be the following;
				 
int msDinit(unsigned qBaud)        
{
	// Open the serial port.  THIS MUST BE DONE PRIOR TO SETTING THE
	// DATA BITS AND PARITY SETTINGS.
	
	serDopen(qBaud); 
	  
	// setup parity.  Either PARAM_OPARITY, PARAM_EPARITY, PARAM_NOPARITY, 
	// or PARAM_2STOP  
	
	serDparity(PARAM_EPARITY);
	 
	// setup data bits. Either PARAM_7BIT, or PARAM_8BIT 
	 
	serDdatabits(PARAM_8BIT);
	
  	// Set the Serial port mode. Used for Zworld SBC's only.  
  	
	serMode(0);  
	
	return(1);
}
				 

PARAMETER1: slave address.
PARAMETER2: baud rate (bits per second).

RETURN VALUE: 1 if successful, 0 if unsupported baud rate.
END DESCRIPTION ******************************************************/

/* START FUNCTION DESCRIPTION *****************************************
msDrx                         <MSZ_RAB.LIB>

NOTE: MSZ_RAB.LIB functions are generally not reentrant.

SYNTAX: 			void	msDrx  (void)

DESCRIPTION: 	User defineable function for disabling the rs485
					transmitter.  This function is needed in your application
					code.  If you are doing RS232, you need only to have
					an empty function like
					
					void msDrx(void)
					{
					}
					
					For rs485 control, you can do the following;

EXAMPLE:	  void msDrx(void)
			  {
			    // Ensure that all the data has bent sent.
			    
			    while (serDwrUsed() || \
			    		  BitRdPortI(SDSR,2) || \
			    		  BitRdPortI(SDSR,3)); 
				
				// Turn off the RS485 transmitter by doing the following;
				
				//	PORT:				The parrallel port (PADR,PBDR,PCDR etc)          
				// PORTShadow: 	The Shadow register of the port
				//	OFF_VALUE:		1 or 0
				//	PORT_BIT:		parrallel port bit (0-7)
				
					BitWrPortI(PORT,&PORTShadow, OFF_VALUE, PORT_BIT);
					
				// if your product is a Zworld SBC, you can do the following 
				//	instead
				
					ser485Rx();
					
				//  Flush out the serial port read buffer, so you are ready for
				//  the next packet.
					
					serDrdFlush();	 
			  }			

RETURN VALUE: none
END DESCRIPTION ******************************************************/

/* START FUNCTION DESCRIPTION *****************************************
msDtx                         <MSZ_RAB.LIB>

NOTE: MSZ_RAB.LIB functions are generally not reentrant.

SYNTAX: 			void	msDtx  (void)

DESCRIPTION: 	User defineable function for enabling the rs485
					transmitter.  This function is needed in your application
					code.  If you are doing RS232, you need only to have
					an empty function like
					
					void msDtx(void)
					{
					}
					
					For rs485 control, you can do the following;

EXAMPLE:	  void msDtx(void)
			  {
			    // Ensure that all the data has bent sent.
			    
			    / Turn on the RS485 transmitter by doing the following;      
				
				//	PORT:				The parrallel port (PADR,PBDR,PCDR etc)          
				// PORTShadow: 	The Shadow register of the port
				//	ON_VALUE:		1 or 0
				//	PORT_BIT:		parrallel port bit (0-7)
				
					BitWrPortI(PORT,&PORTShadow, ON_VALUE, PORT_BIT);
			    
			    				
				//  If your product is a Zworld SBC, you can do the following
				
					ser485Tx();
					
				
			  }			

RETURN VALUE: none
END DESCRIPTION ******************************************************/

/* START FUNCTION DESCRIPTION *****************************************
msEinit                         <MSZ_RAB.LIB>

NOTE: MSZ_RAB.LIB functions are generally not reentrant.

SYNTAX: 	int msEinit(unsigned qBaud)

DESCRIPTION: User function for
				 Initializing serial port E as a Modbus ASCII Slave.
				 
				 This function must reside in your application code.
				 Typical code for this function would be the following;
				 
int msEinit(unsigned qBaud)        
{
	// Open the serial port.  THIS MUST BE DONE PRIOR TO SETTING THE
	// DATA BITS AND PARITY SETTINGS.
	
	serEopen(qBaud); 
	  
	// setup parity.  Either PARAM_OPARITY, PARAM_EPARITY, PARAM_NOPARITY, 
	// or PARAM_2STOP  
	
	serEparity(PARAM_EPARITY);
	 
	// setup data bits. Either PARAM_7BIT, or PARAM_8BIT 
	 
	serEdatabits(PARAM_8BIT);
	
  	// Set the Serial port mode. Used for Zworld SBC's only.  
  	
	serMode(0);  
	
	return(1);
}
				 

PARAMETER1: slave address.
PARAMETER2: baud rate (bits per second).

RETURN VALUE: 1 if successful, 0 if unsupported baud rate.
END DESCRIPTION ******************************************************/

/* START FUNCTION DESCRIPTION *****************************************
msErx                         <MSZ_RAB.LIB>

NOTE: MSZ_RAB.LIB functions are generally not reentrant.

SYNTAX: 			void	msErx  (void)

DESCRIPTION: 	User defineable function for disabling the rs485
					transmitter.  This function is needed in your application
					code.  If you are doing RS232, you need only to have
					an empty function like
					
					void msErx(void)
					{
					}
					
					For rs485 control, you can do the following;

EXAMPLE:	  void msErx(void)
			  {
			    // Ensure that all the data has bent sent.
			    
			    while (serEwrUsed() || \
			    		  BitRdPortI(SESR,2) || \
			    		  BitRdPortI(SESR,3)); 
				
				// Turn off the RS485 transmitter by doing the following;
				
				//	PORT:				The parrallel port (PADR,PBDR,PCDR etc)          
				// PORTShadow: 	The Shadow register of the port
				//	OFF_VALUE:		1 or 0
				//	PORT_BIT:		parrallel port bit (0-7)
				
					BitWrPortI(PORT,&PORTShadow, OFF_VALUE, PORT_BIT);
					
				// if your product is a Zworld SBC, you can do the following 
				//	instead
				
					ser485Rx();
					
				//  Flush out the serial port read buffer, so you are ready for
				//  the next packet.
					
					serErdFlush();	 
			  }			

RETURN VALUE: none
END DESCRIPTION ******************************************************/

/* START FUNCTION DESCRIPTION *****************************************
msEtx                         <MSZ_RAB.LIB>

NOTE: MSZ_RAB.LIB functions are generally not reentrant.

SYNTAX: 			void	msEtx  (void)

DESCRIPTION: 	User defineable function for enabling the rs485
					transmitter.  This function is needed in your application
					code.  If you are doing RS232, you need only to have
					an empty function like
					
					void msEtx(void)
					{
					}
					
					For rs485 control, you can do the following;

EXAMPLE:	  void msEtx(void)
			  {
			    // Ensure that all the data has bent sent.
			    
			    / Turn on the RS485 transmitter by doing the following;      
				
				//	PORT:				The parrallel port (PADR,PBDR,PCDR etc)          
				// PORTShadow: 	The Shadow register of the port
				//	ON_VALUE:		1 or 0
				//	PORT_BIT:		parrallel port bit (0-7)
				
					BitWrPortI(PORT,&PORTShadow, ON_VALUE, PORT_BIT);
			    
			    				
				//  If your product is a Zworld SBC, you can do the following
				
					ser485Tx();
					
				
			  }			

RETURN VALUE: none
END DESCRIPTION ******************************************************/

/* START FUNCTION DESCRIPTION *****************************************
msFinit                         <MSZ_RAB.LIB>

NOTE: MSZ_RAB.LIB functions are generally not reentrant.

SYNTAX: 	int msFinit(unsigned qBaud)

DESCRIPTION: User function for
				 Initializing serial port F as a Modbus ASCII Slave.
				 
				 This function must reside in your application code.
				 Typical code for this function would be the following;
				 
int msFinit(unsigned qBaud)        
{
	// Open the serial port.  THIS MUST BE DONE PRIOR TO SETTING THE
	// DATA BITS AND PARITY SETTINGS.
	
	serFopen(qBaud); 
	  
	// setup parity.  Either PARAM_OPARITY, PARAM_EPARITY, PARAM_NOPARITY, 
	// or PARAM_2STOP  
	
	serFparity(PARAM_EPARITY);
	 
	// setup data bits. Either PARAM_7BIT, or PARAM_8BIT 
	 
	serFdatabits(PARAM_8BIT);
	
  	// Set the Serial port mode. Used for Zworld SBC's only.  
  	
	serMode(0);  
	
	return(1);
}
				 

PARAMETER1: slave address.
PARAMETER2: baud rate (bits per second).

RETURN VALUE: 1 if successful, 0 if unsupported baud rate.
END DESCRIPTION ******************************************************/

/* START FUNCTION DESCRIPTION *****************************************
msFrx                         <MSZ_RAB.LIB>

NOTE: MSZ_RAB.LIB functions are generally not reentrant.

SYNTAX: 			void	msFrx  (void)

DESCRIPTION: 	User defineable function for disabling the rs485
					transmitter.  This function is needed in your application
					code.  If you are doing RS232, you need only to have
					an empty function like
					
					void msFrx(void)
					{
					}
					
					For rs485 control, you can do the following;

EXAMPLE:	  void msFrx(void)
			  {
			    // Ensure that all the data has bent sent.
			    
			    while (serFwrUsed() || \
			    		  BitRdPortI(SFSR,2) || \
			    		  BitRdPortI(SFSR,3)); 
				
				// Turn off the RS485 transmitter by doing the following;
				
				//	PORT:				The parrallel port (PADR,PBDR,PCDR etc)          
				// PORTShadow: 	The Shadow register of the port
				//	OFF_VALUE:		1 or 0
				//	PORT_BIT:		parrallel port bit (0-7)
				
					BitWrPortI(PORT,&PORTShadow, OFF_VALUE, PORT_BIT);
					
				// if your product is a Zworld SBC, you can do the following 
				//	instead
				
					ser485Rx();
					
				//  Flush out the serial port read buffer, so you are ready for
				//  the next packet.
					
					serFrdFlush();	 
			  }			

RETURN VALUE: none
END DESCRIPTION ******************************************************/


/* START FUNCTION DESCRIPTION *****************************************
msFtx                         <MSZ_RAB.LIB>

NOTE: MSZ_RAB.LIB functions are generally not reentrant.

SYNTAX: 			void	msFtx  (void)

DESCRIPTION: 	User defineable function for enabling the rs485
					transmitter.  This function is needed in your application
					code.  If you are doing RS232, you need only to have
					an empty function like
					
					void msFtx(void)
					{
					}
					
					For rs485 control, you can do the following;

EXAMPLE:	  void msFtx(void)
			  {
			    // Ensure that all the data has bent sent.
			    
			    / Turn on the RS485 transmitter by doing the following;      
				
				//	PORT:				The parrallel port (PADR,PBDR,PCDR etc)          
				// PORTShadow: 	The Shadow register of the port
				//	ON_VALUE:		1 or 0
				//	PORT_BIT:		parrallel port bit (0-7)
				
					BitWrPortI(PORT,&PORTShadow, ON_VALUE, PORT_BIT);
			    
			    				
				//  If your product is a Zworld SBC, you can do the following
				
					ser485Tx();
					
				
			  }			

RETURN VALUE: none
END DESCRIPTION ******************************************************/

/*** BeginHeader */
#endif
/*** EndHeader */