Specifications

Allen-Bradley ControlLogix Ethernet Driver Help

Complex Example

A Logix tag is defined with the address "Local:1:O.Slot[9].Data". This would be represented in the groups

"Global" - "Local_1_O" - "Slot_x" - "Slot_09". Within the last group would be the tag "Data".

The static reference to "Data" would be "Channel1.Device1.Global.Local_1_O.Slot_x.Slot_09.Data". The dynamic

reference to "Data" would be "Channel1.Device1.Local:1:O.Slot[9].Data".

Condensed Mode

In Condensed Mode, the server tags created by automatic tag generation follow a group/tag hierarchy consistent

with the tag's address. Groups are created for every segment preceding the period. Groups created include the

following:

l Program scope

l Structures and substructures

Note: Groups are not created for arrays or .bit addresses.

With a complex project, it is easy to see how the tag hierarchy can require a number of group levels. The

maximum number of group levels created by automatic tag generation is seven. This does not include the group

specified in "Add generated tags to the following group". When more than seven levels are required, the tags are

placed in the seventh group (causing the hierarchy to plateau).

Note: Tag or structure member names leading off with an underscore is converted to "U_". This is required

because the server does not support leading underscores. For more information, refer to Controller-to-Server

Name Conversion.

Simple Example