AVEVA™ Plant SCADA

Reserved Words

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Reserved Words

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Last UpdatedJul 18, 2023
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You cannot use certain reserved words when configuring a Plant SCADA project. You need to check the following lists before you create a name for any element:

Tag Names

You cannot use Cicode function names and the following reserved words when defining a tag name for a variable tag:

&	*	**	-
/	+	<	<=
>=	<>	=	>
ACTION	AND	ANY_NUM	AREA
ARRAY	BOOL	CASE	CONFIGURATION
CONSTANT	DATE	DINT	DO
DUT	DWORD	ELSE	EN
END_CASE	END_CONFIGURATION	END_FOR	END_IF
END_PROGRAM	END_VAR	END_WHILE	END
EXIT	FALSE	FOR	FUNCTION
IF	INT	ME	MOD
NOT	OF	OR	PROGRAM
REAL	REPEAT	STRING	TASK
TIME	TO	TRUE	UNTIL
VAR_EXTERNAL	VAR_GLOBAL	VAR_IN_OUT	VAR_INPUT
VAR_OUTPUT	WHILE	WORD	XOR

Note: When defining an alarm tag name, following are some additional reserved words that you need to avoid:
• ServerStatus
• SummaryRecordId
• RDBTimeInDB
• CitectArchiveObject
If you use any of these reserved words for alarm tag, an error message will display when you compile your project.

Cluster Names

You cannot use the following reserved words when defining a cluster name:

&	*	**	-
/	+	<	<=
>=	<>	=	>
ACTION	AND	ANY_NUM	AREA
ARRAY	BOOL	CASE	CONFIGURATION
CONSTANT	DATE	DINT	DO
DUT	DWORD	ELSE	EN
END_CASE	END_CONFIGURATION	END_FOR	END_IF
END_PROGRAM	END_VAR	END_WHILE	END
EXIT	FALSE	FOR	FUNCTION
IF	INT	ME	MOD
NOT	OF	OR	PROGRAM
REAL	REPEAT	STRING	TASK
TIME	TO	TRUE	UNTIL
VAR_EXTERNAL	VAR_GLOBAL	VAR_IN_OUT	VAR_INPUT
VAR_OUTPUT	WHILE	WORD	XOR

Equipment Names

You cannot use the following reserved words when defining an equipment name:

&	*	**	-
/	+	<	<=
>=	<>	=	>
ACTION	AND	ANY_NUM	AREA
ARRAY	BOOL	CASE	CONFIGURATION
CONSTANT	DATE	DINT	DO
DUT	DWORD	ELSE	EN
END_CASE	END_CONFIGURATION	END_FOR	END_IF
END_PROGRAM	END_VAR	END_WHILE	END
EXIT	FALSE	FOR	FUNCTION
IF	INT	ME	MOD
NOT	OF	OR	PROGRAM
REAL	REPEAT	STRING	TASK
TIME	TO	TRUE	UNTIL
VAR_EXTERNAL	VAR_GLOBAL	VAR_IN_OUT	VAR_INPUT
VAR_OUTPUT	WHILE	WORD	XOR

Note: When defining an Item Name, there are a number of reserved words that you need to avoid. These reserved words relate to syntax that is used for Tag Extensions. They are:
• field
• valid
• override
• overridemode
• controlmode
• status
• v
• vt
• q
• qt
• t
If you use one of these reserved words, an error message will display when you compile your project.

Note: Using a reserved word for a name may generate a compile error message.

AVEVA™ Plant SCADA

Reserved Words

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Reserved Words

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