ModTcpInfo (FB)

FUNCTION_BLOCK ModTcpInfo EXTENDS AbbLConA

Function Block serves to read Modbus TCP/IP information

InOut:

Scope	Name	Type	Initial	Comment	Inherited from
Input	Enable	BOOL	FALSE	A rising edge (Enable = TRUE) starts the operation, the output Busy goes to TRUE. All other inputs are read and considered continuously. A falling edge (Enable = FALSE) aborts the operation. During Aborting the Busy is still TRUE. Afterward all outputs are reset.	AbbLConA
Output	Done	BOOL	FALSE	Operation is completed without error (while outputs Busy and Error are FALSE). This output is TRUE for at least one cycle or until Enable is set to FALSE.	AbbLConA
	Busy	BOOL	FALSE	Operation is running (while outputs Done and Error are FALSE)	AbbLConA
	Error	BOOL	FALSE	Operation is stopped with error (while outputs Busy and Done are FALSE). This output is TRUE for at least one cycle or until Enable is set to FALSE. The output ErrorID gives more details about the error.	AbbLConA
Input	Eth	BYTE	ETH1	Index number of the assigned Ethernet interface - input is ignored, existing for compatibility reasons only
Output	ErrorID	ERROR_ID	ERROR_ID.NO_ERROR	Code of error occured during execution NO_ERROR - Execution successfully completed ERR_NOT_CONFIGURED - Modbus TCP not configured ERR_INTERNAL_ILLEGAL_ARGUMENT - Stack reports illegal argument (internal error) ERR_UNKNOWN - Undefined error
	NumSrv	BYTE	0	Maximum number of supported Server connections (PLC as Modbus TCP Server)
	Rdy	BOOL	FALSE	OpenModbus on TCP/IP processing ready
	Stat	WORD	0	Status of OpenModbus on TCP/IP processing. Set to 0 in any case, output left for compatibility reasons only
	NumErrs	DWORD	0	Number of errors occured. Does not cover TCP/IP issues like ‘failed to connect’, Modbus errors on established connections only
	LastErr	WORD	0	Code of last error occured. Set to 0 in any case, output left for compatibility reasons only