Grid columns of the Connections tab
The following table shows the columns of the
Connections
grid.Column | Description |
|---|---|
Name | Identifies the name of the property. |
Value Update Direction | Contains an arrow whose direction indicates which way data can flow between the property and the tag. |
Tag / Expression | Shows the selected tag or expression. |
Tag | Allows you to assign a tag to animate the property. |
Exprn | Allows you to specify an expression. |
The following table shows the direction of arrows shown in the
Value Update Direction
column.Direction of arrows | Description |
|---|---|
 (right-facing arrow) | Property updates the tag |
 (left-facing arrow) | Tag updates the property |
 -(double arrow) | Property updates the tag and tag updates the property |
The direction of arrows is determined by whether a property is bindable or not, and if it is read-only, write-only, or read and write. The following table shows how this works.
Channel | Bindable | Not Bindable |
|---|---|---|
Read-only | | Property not shown |
Read/write | | |
Write-only | | |
TIP:
Whether a property for a third-party ActiveX object is Bindable or Not Bindable is determined by the vendor, not by FactoryTalk View.
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