Allen-Bradley ControlLogix 1756 - Entering Icons and Ocons; ICON and OCON Guidelines

Publication 1756-RM084F-EN-P - July 2002
5-8 Entering Function Block Diagram Logic
Entering ICONs and OCONs
Input and output wire connectors have similar formats and identical
attributes. They follow this format:
ICON (ID := < unique_identifier >
X := <
internal_grid_x_location >,
Y := <
internal_grid_y_location >,
Name := <
connector_name >)
END_ICON
OCON (ID := <
unique_identifier >
X := <
internal_grid_x_location >,
Y := <
internal_grid_y_location >,
Name := <
connector_name >)
END_OCON
Where:
ICON and OCON guidelines
• OCON connector names must be unique within a function block
routine.
• Multiple ICON connector names can reference the same OCON
connector name.
• ICONs and OCONs with unmatched or blank connector names
will not be verified.
• The X and Y grid locations are a relative position from the
upper-left corner of the sheet. X is the horizontal position; Y is
the vertical position.
Item: Identifies:
ID
the ICON or OCON identifier; uniqueness is important for
wiring
enter unsigned, 32-bit integer value
Specify:
ID := ” number ”
X
x-coordinates on internal grid
enter unsigned, 32-bit integer value
Specify:
X := ” number ”
Y
y-coordinates on internal grid
enter unsigned, 32-bit integer value
Specify:
Y := ” number ”
Name
the name of the wire connector (optional)
Specify:
Name := ” number ”