PLC Programming Tutorial - Ladder Logic #2: Timers and Counters

PLC Programming Tutorial - Ladder Logic #2: Timers and Counters

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LeMaster Tech
898 Video Views·Dec 28, 2025  #2 #PLCProgramming #LadderLogic

PLC Programming Tutorial - Ladder Logic #2: Timers & Counters | Siemens TIA Portal
Master PLC timer and counter instructions in this hands-on ladder logic tutorial using Siemens TIA Portal. This is Part 2 of my PLC programming series, building on the binary and Boolean fundamentals from Part 1.
What you'll learn:

Timer On Delay (TON) - how to create time-based delays
Timer Off Delay (TOF) - controlling output hold times
Retentive Timer (TONR/RTO) - timers that remember elapsed time
Counter Up (CTU) - counting events and triggering outputs

These instructions are essential building blocks in industrial automation—you'll use them in nearly every PLC program you write.
Perfect for beginners learning PLC programming, electricians moving into controls, or experienced techs brushing up on Siemens ladder logic fundamentals.
Watch Part 1: Binary & Boolean Operations ▸ [link]
Resources
PLC used in this tutorial: https://amzn.to/4p90T8d
Support the channel: https://www.patreon.com/LeMasterTech
Timestamps
00:00 Introduction
02:02 Timer On Delay (TON)
09:55 Timer Off Delay (TOF)
13:57 Retentive Timer (TONR/RTO)
18:35 Counter Up (CTU)
23:36 Outro

#PLCProgramming #LadderLogic #SiemensTIAPortal #IndustrialAutomation #PLCTimers #PLCCounters #ControlsEngineering #Automation #PLCTutorial