Extended properties
The extended properties is a Logix controller capability that lets you define additional information, such as engineering units, state identifiers, for components within your controller project in
Studio 5000 Logix Designer
version 21.00.00 or later. Once configured, the values of extended properties can be distributed to local and distributed clients, such as FactoryTalk View
version 9.00.00.
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Extended tag properties are not supported by
FactoryTalk Design Studio
version 2.01.00 or
earlier, so many of the extended tag properties retrieved from the controllers are not
available in controllers loaded by FactoryTalk Design Studio
. However, some
extended properties generated by FactoryTalk Linx
are available for controllers
loaded by both Studio 5000 Logix Designer
and FactoryTalk Design Studio
.The extended properties are only available to
FactoryTalk
Software and the PanelView Plus
.You can use extended properties to define additional information about a tag, or structure of tags. You can also use extended properties for user defined data types, arrays, or other complex data structures. Currently the extended properties are supported for
ControlLogix
controllers with firmware version 21 or later.While FactoryTalk Linx can read extended tag properties, these attributes do not support write operations. Because of FactoryTalk Live Data client can receive the values but will not be able to change them.
Logix controllers extended tag properties
Property Name | Description | Pass-through supported (Version) | Logix controllers (Version) | PlantPAX controllers (version) |
|---|---|---|---|---|
.@Description | A text string from 0 to 512 characters that contains the descriptive texts as defined in Studio 5000 Logix Designer. | FactoryTalk Linx V6.00 | V30 and later | V33 and later |
.@EngineeringUnit | A text string from 0 to 80 characters that represents the units of measurement associated with a tag or tag structure or array member. | FactoryTalk Linx V6.20 | V30 and later | V33 and later |
.@Min | The minimum (low) value of a tag or tag structure or array member. This property is used with the .@Max property to create a high and low limit for a DINT, INT, LINT, SINT, and REAL tag. This value takes on the same type as the tag which it is associated with. | No | V30 and later | V33 and later |
.@Max | The maximum (high) value of a tag or tag structure or array member. This property is used with the .@Min property to create a high and low limit for a DINT, INT, LINT, SINT, and REAL tag. This value takes on the same type as the tag which it is associated with. | No | V30 and later | V33 and later |
.@State0 | The State 0 identifier associated with the tag or tag structure or array member. It is used with .@State1 property to describe two states of a BOOL tag. The identifier is limited to 80 characters. | FactoryTalk Linx V6.20 | V30 and later | V33 and later |
.@State1 | The State 1 identifier associated with the tag or tag structure or array member. It is used with .@State0 property to describe two states of a BOOL tag. The identifier is limited to 80 characters. | FactoryTalk Linx V6.20 | V30 and later | V33 and later |
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Logix controller extended tag properties are only available for controllers loaded by
Studio 5000 Logix Designer
.PlantPAX controller process instruction extended tag properties
Property Name | Description | Tag category | Pass-through supported (Version) | PlantPAX controllers (version) |
|---|---|---|---|---|
.@Library | Associates instructions with a display library for faceplate call-up. | Type | FactoryTalk Linx V6.20 | V33 and later |
.@Instruction | Associates the instruction name for faceplate call-up. | Type | FactoryTalk Linx V6.20 | V33 and later |
.@Label | A label that appears on the graphic HMI symbol. | Type and element | FactoryTalk Linx V6.20 | V33 and later |
.@Area | The area name for area-based security in the HMI. | Type | FactoryTalk Linx V6.20 | V33 and later |
.@URL | The Uniform Resource Locator (URL) for accessing the help content from HMI. | Type | FactoryTalk Linx V6.20 | V33 and later |
.@Navigation | A path to another source of information. For example, a document link or website. | Element | FactoryTalk Linx V6.20 | V33 and later |
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PlantPAx
controller process instruction extended tag
properties are only available for controllers loaded by Studio 5000 Logix Designer
.FactoryTalk Linx extended tag properties
Property Name | Description | Pass-through supported (Version) |
|---|---|---|
.@Name | A text string ranging from 0 through 512 characters that defines the tag name in client application. | FactoryTalk Linx version 6.20.00 |
.@Quality | A value that represents the communication status for the base tag. Refer to Attribute for quality codes and their meanings. | FactoryTalk Linx version 6.20.00 |
.@Timestamp | The date/time when the base tag was last received. A string that follows the format of Year/Month/Day/Hour/Minute/Second to define the time when FactoryTalk Linx data server polls the data to the client. | FactoryTalk Linx version 6.20.00 |
.@Scope | A string that defines a tag's controller and program scope. | FactoryTalk Linx version 6.20.00 |
.@Description | A custom text string ranging from 0 through 512 characters defined in Studio 5000 Logix Designer to provide descriptive information about a tag. This
may contain a description assigned to the tag element directly, or an
automatically generated description using other description information using the
Studio 5000 Logix Designer pass-through description mechanism. | FactoryTalk Linx version 6.60.00 |
.@Shortcut | A string that defines the shortcut reference. This can include FactoryTalk
Application area/sub-areas and the FactoryTalk Linx server name. (For example,
/Area/subarea:FactoryTalk Linx:[ShortcutName]) | FactoryTalk Linx version 6.60.00 |
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FactoryTalk Linx
extended tag properties are available for controllers loaded by both Studio 5000 Logix Designer
and FactoryTalk Design Studio
.For more definition about extended properties, refer to .
Studio 5000 Logix Designer
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