REGIO: I/O Alarm saving and dating

Description of the function

The REGIO function saves I/O alarm in the diagnostics buffer.

Additional parameters and can be configured.

Representation in FBD

Representation in LD

Representation in IL

LD OperatorString
REGIO ErrorClass, StatusLength, OperatorControl,
DiagnosticBuffer, ErrorIdentifier, RegistrationStatus

Representation in ST

REGIO(OperatorString, ErrorClass, StatusLength,
OperatorControl, ErrorIdentifier,
RegistrationStatus);

Description of parameters

The following table describes the input parameters:

Parameter	Type	Comment
UTXT	STRING	User text can be used instead of instance comment.
CLAS	INT	Class of error: 16#0062
SLEN	INT	Length of the status: 0, 2 or 4 bytes: 0 = no status managed 2 = status managed on one word 4 = status managed on a double word
CTRL	BOOL	1 = Operator acknowledgement is required. 0 = no acknowledgement is required.
EINF	ANY ARRAY OF INT	Address of extra information
ESTS	ANY	Address of error status

The following table describes the output parameters:

Parameter	Type	Comment
ERID	INT	Error identifier.
STAT	INT	Registration status. if the registration is successful: STAT= 0 and ERID is valid, if the registration fails: ERID is invalid and STAT = 1: diagnostic buffer not configured, STAT = 2: diagnostic buffer is full. See DIAGBUF.

The following table describes the input/output parameters:

Parameter	Type	Comment
DIAGBUF	DWORD	Diagnostic buffer that contains the registration result

EN stands for ENable; it is an optional block input. When the EN input is enabled, an ENO output is set automatically.

If EN = 0, the block is not enabled; its internal program is not executed, and ENO is set to 0.

If EN = 1, the block's internal program is run and ENO is set to 1. If an error occurs, ENO is set to 0.

If the EN input is not connected, it is set automatically to 1.

ENO

ENO stands for Error NOtification; this is the output associated with the optional input EN.

If ENO is set to 0 (because EN = 0 or in case of an execution error):

the status of the function block outputs remains the same as it was during the previous scanning cycle that executed correctly;
the output(s) of the function, as well as the procedures, are set to "0".

DWORD

DWORD is the abbreviation of Double Word.

The DWORD type is encoded in a 32 bit format.

This table shows the upper/lower limits of each of the bases that can be used:

Examples of representation:

Data	Representation in one of the bases
00000000000010101101110011011110	16#ADCDE
00000000000000010000000000000000	8#200000
00000000000010101011110011011110	2#10101011110011011110