Function blocks, Standard function blocks, Timing and counting elements – Watlow LogicPro User Manual
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10
Function Blocks
This chapter explains in detail the function and I/O
requirements for each of the standard and vendor provided
Function Blocks used in FBD and LD programs. For
information on writing your own Function Blocks, see
Chapter 11, “User Defined Function Blocks.”
The Function Block tool allows three types of function blocks
to be inserted into Ladder Diagram and Function Block
Diagram programs:
•
Standard LogicPro
•
Vendor Provided
•
User Defined
Standard Function Blocks
The following sections describe the standard function blocks
available in LogicPro. These standard function blocks fall
into one of six categories:
•
Timing and Counting
•
Comparison
•
Arithmetic
•
Data Manipulation
•
Real Number
•
Logical
Timing and Counting Elements
The following sections contain descriptions of timing and
counting function blocks found in the standard category.