Uploaded June 2026 | Updated September 2026, 2 weeks ago

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▶ You can read the full post here:
realpars.com/blog/user-defined-function-blocks-ccw

⌚Timestamps:
00:00 - Intro
01:02 - The importance of modular code
02:37 - What is a User-Defined Function Block?
03:34 - User-Defined Function Block definition
04:25 - Instantiate a User-Defined Function Block
05:06 - Demo
05:44 - Wrap-Up

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User Defined Function Blocks let you build reusable PLC code that is cleaner, scalable, and easier to maintain. In this video, you’ll learn why modular programming matters, how User Defined Function Blocks and User Defined Functions work in Connected Components Workbench, and how to instantiate them in real projects like conveyor control systems. You’ll also see a practical demo running on a Micro800 PLC.

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Check out the course mentioned in the video:

PLC Programming from Scratch 7 - Working with UDFBs and UDFCs: realpars.com/courses/plc-programming-from-scratch-7

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Did you miss out on the latest and greatest? Catch up now by watching our videos right here:

realpars.com/blog/continuous-vs-batch-process

realpars.com/blog/omron-dx1-data-flow-controller

realpars.com/blog/how-does-a-contactor-work

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