/*@!Encoding:1252*/

// This file is a Modbus Client that only performs queries in 'on start'

includes
{
	#include "include\ModbusUdp.cin"			// Use UDP as Layer 4
	#include "include\ModbusClient.cin"			// Use Modbus as Application Layer
	#include "include\DeviceInformation.cin"	// Handle several vendors differently
}

variables
{

}

on preStart
{
	writeClear(0);					// Clear write window in CANoe
	setStartdelay(10);				// Wait for Ethernet device to be ready
	OutputDebugLevel = Error;		// The debug level (messages in write window)
}

// Connect to Modbus server, read the status of output registers and bits and start the cyclic timer
on start
{
	char ip[16];
	sysGetVariableString("%BUS_TYPE%%CHANNEL%::%NODE_NAME%::Config", "IP", ip, elCount(ip));							// Get IP address of device from sysvars config

	DeviceInit(@sysvar::%BUS_TYPE%%CHANNEL%::%NODE_NAME%::Info::Vendor);												// Set all device specific parameters (Wago / B&R)

	writeDbg(MbInfo, "Connecting to %s:%d", ip, @sysvar::Config::Modbus::Port);
	ModbusInit(ip, @sysvar::Config::Modbus::Port, @sysvar::Config::Modbus::RequestTimeout, @sysvar::Config::Modbus::MaxTransmissionCount);	// Connect to device. Opens socket and connection or what ever

	if (gSocketState < CONNECTING)	// We are not connecting and not connected
		return;

	//ModbusReadRegisters(0x1083, 1);
}

// Stop all transactions and close connection
on preStop
{
	ModbusEnd();
}


// Modbus events ----------------------------------------------------------------------
/// 	All these events will be called by functions out of ModbusClientCommon.cin

// -- Modbus Failures -----------------------------------------------------------------
/// 	Several reasons are possible:
/// 	error == Timeout:		The packet will be resent
/// 	error == FinalTimeout:	The packet will not be resent
/// 	error == Exception:		The client responded with an exception (which again can have several reasons, see enum ModbusException)

// This method gets called when an error occured while trying to read some bits (ModbusReadBits())
void OnModbusReadBitsFailed(enum ModbusRequestError error, enum ModbusException ex, struct ModbusApHeader mbap){}
// This method gets called when an error occured while trying to read some registers (ModbusReadRegisters())
void OnModbusReadRegistersFailed(enum ModbusRequestError error, enum ModbusException ex, struct ModbusApHeader mbap){}
// This method gets called when an error occured while trying to set a bit (ModbusWriteBit())
void OnModbusWriteBitFailed(enum ModbusRequestError error, enum ModbusException ex, struct ModbusApHeader mbap){}
// This method gets called when an error occured while trying to set a register (ModbusWriteRegister())
void OnModbusWriteRegisterFailed(enum ModbusRequestError error, enum ModbusException ex, struct ModbusApHeader mbap){}
// This method gets called when an error occured while trying to apply a mask on a register (ModbusWriteMask())
void OnModbusWriteMasksFailed(enum ModbusRequestError error, enum ModbusException ex, struct ModbusApHeader mbap){}
// This method gets called when an error occured while trying to read and write registers (ModbusReadWriteRegisters())
void OnModbusReadWriteRegistersFailed(enum ModbusRequestError error, enum ModbusException ex, struct ModbusApHeader mbap){}
// This method gets called when an error occured while trying to set multiple bits (ModbusWriteBits())
void OnModbusWriteBitsFailed(enum ModbusRequestError error, enum ModbusException ex, struct ModbusApHeader mbap){}
// This method gets called when an error occured while trying to set multiple registers (ModbusWriteRegisters())
void OnModbusWriteRegistersFailed(enum ModbusRequestError error, enum ModbusException ex, struct ModbusApHeader mbap){}

// -- Modbus Success ------------------------------------------------------------------
/// 	These functions get called when a device responds that a request was fulfilled successfully
/// 	Normally the Reponse as well the Request will be handed over


// This method gets called when some bits were read successfully. See 'bitStatus' for their values and 'mbreq.Address' for their start address
void OnModbusReadBitsSuccess(struct ModbusResReceiveBits mbres, byte bitStatus[], struct ModbusReqRead mbreq){}
// This method gets called when some bits were read successfully. See 'mbres.Data' for their values and 'mbreq.Address' for their start address
void OnModbusReadRegistersSuccess(struct ModbusResReceiveRegisters mbres, struct ModbusReqRead mbreq)
{
	writeLineEx(0, 1, "<%NODE_NAME%> 0x%04X = 0x%04X (%d)", mbreq.Address, mbres.Data[0], mbres.Data[0]);
}
// This method gets called when a bit was set successfully.
void OnModbusWriteBitSuccess(struct ModbusResConfirmSingle mbres){}
// This method gets called when a register was set successsfully.
void OnModbusWriteRegisterSuccess(struct ModbusResConfirmSingle mbres){}
// This method gets called when multiple bits were set successfully.
void OnModbusWriteBitsSuccess(struct ModbusResConfirmMultiple mbres){}
// This method gets called when multiple registers were set successfully.
void OnModbusWriteRegistersSuccess(struct ModbusResConfirmMultiple mbres){}
// This method gets called when a mask was applied successfully.
void OnModbusWriteMasksSuccess(struct ModbusResConfirmMasks mbres){}


// This method gets called when the Modbus Client panics (saying a fatal error occured).
// It will pass as argument what happened. Please see the log (increase debug level in preStart) for more details.
void OnModbusClientPanics(enum FatalErrors reason)
{
	switch(reason)
	{
		case ParsingBuffer:
			writeLineEx(0, 4, "<%NODE_NAME%> Fatal Error while parsing the received buffer");
			break;
		case ModbusPackageWasSplit:
			writeLineEx(0, 4, "<%NODE_NAME%> Fatal Error while parsing the received buffer: The Modbus package was split", reason);
			break;
		case VendorIdUnknown:
			writeLineEx(0, 4, "<%NODE_NAME%> Fatal Error: Vendor ID unknown");
			break;
		case FuncCodeIncorrect:
			writeLineEx(0, 4, "<%NODE_NAME%> Fatal Error: Function code is incorrect");
			break;
		case AddressFailure:
			writeLineEx(0, 4, "<%NODE_NAME%> Fatal Error: Start address is incorrect");
			break;
		case ConnectionError:
			writeLineEx(0, 4, "<%NODE_NAME%> Fatal Connection Error");
			break;
		case SwitchArgumentInvalid:
			writeLineEx(0, 4, "<%NODE_NAME%> Fatal Error: A argument of a switch statement is incorrect");
			break;
	}
	stop();
	runError(1001, reason);
}