Function Block Properties Dialog Box - Tag Tab Overview
Use the
Tag
tab of the Function Block Properties
dialog box to view and edit properties of existing tags associated with the selected function block.Common Parameters
The following table describes the common parameters available on the
Tag
tab. These parameters appear on the Tag
tab whether you are editing a base tag, alias tag, or consumed tag.Parameter | Description |
Name | Enter the name of the tag you want to view or edit. |
Description | Enter a description of the tag. |
Tag Type | Displays either Base , Alias , or Consumed .This field is read-only. |
Data Type | Displays the data type of associated with the selected tag. This field is read-only. |
Scope | Displays the scope of the tag: controller or program. This field is read-only. |
Style | Choose the default style in which to display the value of the tag. The pull-down menu lists available display styles for the chosen data type. |
Produce Tag | Select this check box if you want to make this tag available to remote controllers through controller-to-controller messaging. This parameter is disabled when online; you must either start a pending edit or be offline to choose to produce a tag. This parameter is also disabled for tags that cannot be used as producers. If you select this check box, you can then set the maximum number of consumers (also referred to as connections) allowed for this tag. The default number of consumers is 2. |
Status | Displays read-only status information for blocks containing status bits. If none of the status bits are set, an OK message appears in this field. Otherwise, a list of the status bits that are set appears here. This list is comprised of the parameter names associated with the status bits, and typically explain which parameters were configured with invalid values. |
Execution Order Number | Displays the block's execution number if the routine is in a verified state. If the routine is not yet verified, a Routine not verified message displays. Note that this item is read-only. |
Never display description in a routine | Select this check box if you do not want the description to display in the routine. |
OK | Click this button to add the selected item in the instruction list to the routine and close the Function Block Properties dialog box. |
Cancel | Click this button to cancel any edits you have made and close the Function Block Properties dialog box. |
Apply | Click this button to accept your changes and continue editing in the Function Block Properties dialog box. |
Alias Tag Parameters
The following table describes the parameters available on the
Tag
tab when you are editing an alias tag.Parameter | Description |
Alias For | Enter the base tag and qualifier that this tag references or choose it from the pull-down menu. You must be offline to make changes to this field. |
Consumed Tag Parameters
ATTENTION:
You must only set up one consumed tag to get data from the same producing tag in another controller. Setting up more than one consumed tag results in unpredictable controller to controller behavior.
The following table describes the parameters available on the
Tag
tab when you are editing an consumed tag.Parameter | Description |
Controller | Choose the name of the remote controller that is producing the tag you want to consume. The pull-down menu lists only those controllers that are available in your module tree. You must be offline to change the remote controller name. |
Remote Tag Name | Enter the name of the tag in the remote controller that you wish to consume. If your controller is a PLC-5 , then this field appears as Remote Instance instead of Remote Tag Name. The valid range for the remote instance is 1-128.You must be offline to change the remote tag name or the remote instance number. |
RPI | Enter the Requested Packet Interval. This is the amount of time (in ms) between updates of the data from the remote controller. This is the minimum rate at which the local controller will receive data. The valid range for the RPI is 0.196ms - 536870.911ms. You must be offline or online in Program mode to change the RPI. This option is also enabled if you have started a pending edit. |
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