User defined function blocks, Overview, Getting started – Watlow LogicPro User Manual
Page 183: 11 user defined function blocks, Overview getting started

Doc.# 28002-00 Rev 3.00
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11
User Defined Function Blocks
LogicPro provides comprehensive functionality to create, edit
and use User Defined Function Blocks (UDFB). Users can
write their own Function Blocks in C and use them within a
LogicPro Ladder Program.
Overview
UDFBs are very powerful tools you can use to handle such
tasks as:
•
Support a specific hardware device.
•
Performing an application specific control function.
•
Performing complex math equations.
UDFBs can greatly simplify your Programs and facilitate
troubleshooting.
Getting
Started
You can use User Defined Functions Blocks in the same
manner as standard Function Blocks once:
•
UDFBs are defined.
•
Blocks are coded.
•
Blocks are added to the library.
Once a UDFB is defined in the resource, it is valid and usable
in all Programs.