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Lets, for example, we want to make a 5 seconds delay using the T0 timer which has the time base. Timers Time can be calculated using the following formula. These timers with different time resolutions can be used as per the requirement. In Fatek PLC the total number of timers is 255 (T0 ~ T255) with three different time resolutions or bases, 0.01S, 0.1S, and 1S. You can clearly see the Time control EN “enable” this an input signal from a button, or Sensor, it has two Operands Tn which is the Timer Number and the Operand PV which is the Preset value of the timer. If you look at the Timer Function Block and Operand are given above. Timers can be classified into two main categories, Hardware Timers:Īll the above timers are used only for one purpose which is Time.

Another type of device which counts down from a specified time interval is more usually called a Timer.

A Timer which can count from Zero to a certain pre-defined value, which type of the Timer is also known as the Stopwatch.

A timer is the modified version of a Clock used for measuring specific time intervals. I would appreciate your support in this way! What is a Timer?Īn automatic mechanism for activating or deactivating a device at a preset time. I may make a commission if you buy the components through these links. IR adjustable infrared Proximity Sensor 2v to 24V: Without any further delay let’s get started!!!

I hope this article will help you to learn the basics so that you can develop some advanced level monitoring and control systems using the PLC Timers and Counters. You might have seen a lot of videos on YouTube in which the Bottles, Boxes, etc on a conveyor belt are counted. There are situations when you need to turn OFF a certain machine after some time, or you need to turn ON a machine after a certain delay when a sensor is activated or a button is pressed. PLC Timers and Counters are frequently used in industries for time delays and production monitoring. I am pretty sure you know the importance of Timers and Counters and that’s the reason you are reading this article. PLC Timers and Counters, their types and Practical Uses- In this article, I am only going to talk about the PLC Timers and counters, this article can be a bit longer as I will be sharing with you the ladder logic diagrams, which will explain the practical uses of PLC Timers and Counters.

PLC Timer and Counter together Practical Example 3:.

Traffic Light Controller using PLC Timers:.