Allen-Bradley ControlLogix 1756 - Entering Irefs and Orefs

Publication 1756-RM084F-EN-P - July 2002
5-6 Entering Function Block Diagram Logic
WIRE (FromElementID := 1,
FromParameter := Out,
ToElementID := 0,
ToParameter := SourceA)
END_WIRE
WIRE (FromElementID := 2,
FromParameter := Out,
ToElementID := 5,
ToParameter := "")
END_WIRE
END_SHEET
END_FBD_ROUTINE
Entering IREFs and OREFs
Input and output references have similar formats and identical
attributes. They follow this format:
IREF (
ID := <
unique_identifier >
X := <
internal_grid_x_location >,
Y := <
internal_grid_y_location >,
Operand := <
tag_reference >)
END_IREF
OREF (
ID := <
unique_identifier >
X := <
internal_grid_x_location >,
Y := <
internal_grid_y_location >,
Operand := <
tag_reference >)
END_OREF