Allen-Bradley controllogix 1756-L63, User Manual

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Publication 1756-UM001E-EN-P - August 2002
6-8 Communicate with a PanelView
™
Terminal Over a EtherNet/IP Network
Organize Your Data
Organize your data for the PanelView based on how the data is used.
To access the I/O tags of the PanelView, use the following address
format:
For data that is: Do this:
time-critical (e.g., controls a
machine) Use the I/O tags of the PanelView.
The tags for this data were created when you added the PanelView to the I/O configuration
of the controller. They are similar to the tags of I/O modules. See Table 6.A.
not time critical Create arrays to store the data:
1. For each PanelView screen, create a BOOL array with enough elements for the
bit-level objects on the screen.
For example, the BOOL[32] array gives you 32 bits for push buttons, indicators, etc.
2. For each PanelView screen, create a DINT array with enough elements for the
word-level objects on the screen.
For example, the DINT[28] array, give you 28 values for numeric entry controls,
numeric displays, etc.
Table 6.A Address format for the I/O tags of a PanelView
If the: Then use this address:
PanelView writes the data
name_of_panelview:I.Data[x].y
PanelView reads the data
name_of_panelview:O.Data[x].y
Where: Is:
name_of_panelview
name of the PanelView instance in the I/O configuration of
the controller
x
element of the PanelView input (I) or output (O) structure.
y
bit number within the input or output element