REGEXT: Registration of expanded FFB errors

Function description

The REGEXT procedure transfers any error information to a diagnosis display and registers the error in the diagnosis buffer.(COND=1). For COND=0 the error is de-registered.

REGEXT makes it possible to transfer an error code, an error description and a description.

REGEXT uses a predefined error type and the diagnostics display shows that the reported error has more information associated with it.

and can be configured as additional parameters.

Representation in FBD

Representation:

Representation in LD

Representation:

Representation in IL

Representation:

LD ErrorCode
REGEXT ErrorCondition, ErrorText,  ErrorLength,
       AddressToErrorInfo, ErrorIdentifier,
       RegistrationStatus

Representation in ST

Representation:

REGEXT (ErrorCondition, ErrorText,  ErrorLength,
         AddressToErrorInfo, ErrorIdentifier,
         RegistrationStatus);

Parameter description

Description of the input parameters:

Parameter	Data type	Meaning
COND	BOOL	Error condition 0: Error de-registration 1: Error registration
ECODE	UDINT	Error Code NOTE: ECODE must be set to 2. All other values are reserved and give incorrect detected errors in the Diagnostic Viewer.
CMNT	STRING	Comment on the error description
DESC	STRING	Error description
LEN	INT	Length of error information (ADR) (max. 48 bytes)
EINF	ANY	Error information Any data to be transferred to the diagnostics display. The format of the data to be transferred must be the same as the data format for the diagnosis display. If the format of the data is not the same the transferred data is displayed in the diagnostics display as hex values.

Description of the input/output parameters:

Parameter	Data type	Meaning
ERID	INT	Error recognition used by the function DEREG to de-register active errors (COND=0). Note: The connection to other active errors is lost if the same error recognition variable is used for different errors.

Description of the output parameters:

Parameter	Data type	Meaning
STAT	INT	RegistrationStatus If registration is successful: STAT = 0 and ERID is valid If the registration fails: ERID is invalid and STAT = 1: diagnosis buffer is not configured STAT = 2: Diagnostics buffer full. The system word %SW76 is reserved to receive the result of the diagnostic DFB registration (not mandatory but recommended).