Allen-Bradley ControlLogix 1756 - BLOCK Guidelines

Publication 1756-RM084F-EN-P - July 2002
Entering Function Block Diagram Logic 5-11
Where:
BLOCK guidelines
•
If the Operand is not a qualified tag of the correct data type, the
block will not be verified.
•
Some function block instructions require specific arrays. This
table lists the valid Array Name for each of these instructions:
• 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 block 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 ”
Operand
tag name for the block (optional)
Specify:
Operand := ” tag_name ”
ArrayName
tag name for array (optional)
Specify:
ArrayName := ” array_name ”
VisiblePins
Comma-separated list of the names of all the parameters
with pins visible for wiring. The names match the
member names of the data type of the block tag.
Specify:
VisiblePins := ” parameter ”
Instruction: Array Name:
DEDT Storage (required)
FGEN X1 (required)
Y1 (required)
X2 (optional)
Y2 (optional)
MAVE Storage (required)
Weight (optional)
RMPS RampValue (required)
SoakValue (required)
SoakTime (required)
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