Hello everyone, I have been utilizing Winproladder software for programming FATEK FBs PLCs. In PLC programming, Timers play a crucial role in activating output coils or contacts. However, I have noticed an anomaly with FATEK PLCs - their on delay timers continue running even after the activation of output coils. This leads to inefficiency as the timers keep running unnecessarily. Is there a way to stop the timer once the coil or contact has been activated, or should it run until power is cut? Additionally, I am curious to know if other PLC timers function in a similar manner. Your insights on this matter would be greatly appreciated.
If you're unsure about your logic setup, could you share a screenshot of the issue you're referring to? Typically, "stopping" the timer involves resetting it, and this can be accomplished by either changing the input to the timer to False or utilizing a RESET instruction on the timer's data object.
drbitboy inquired about the logic arrangement and requested a screenshot for clarification. When it comes to "stopping" the timer, it typically involves resetting it either by making the input False or using a RESET instruction on the timer's data object. Is it acceptable to let the timer continue running even after its intended usage in the program?
Faizan_Automata inquired about the possibility of leaving a timer running even after its initial usage in a program. The answer is yes, it is acceptable to allow the timer to expire with its value maintained at 1 instead of resetting it to 0, as long as the coil needs to remain activated. This approach simplifies the process as the timer output can directly drive the coil with a delayed value of 1, eliminating the need for an additional "seal-in" or "latch" circuit to keep the coil activated.
Activate the M1957/M1973 functions to automatically stop the timer once the set time is reached.
Hey there, I've been working with PLCs for a while and see where you're coming from. For FATEK on-delay timers, it's indeed a default design. Once the timers are activated, they run until the preset time is met, irrespective of whether the output coil is activated or not. But suppose you want to have more control on the timer, I'd recommend using program coding to link a timer's input conditions with the output coil status. That way, when the coil/contact is activated, you can manipulate a condition to stop the timer. To answer your question about other PLCs - the handling of timers can vary significantly from brand to brand. Some may stop after activation while others behave similar to FATEK. Hope this helps, happy programming!
Hi there! I've worked with FATEK PLCs a fair bit as well. From what I understand, the behavior you're seeing is quite standard across many PLCs, not just FATEK. However, if you need the timer to stop after activating the coil, you could program it with an additional condition to reset or stop the timer. You can also utilize off-delay timers as an alternative, depending on your specific needs. Always remember to consider your application's requirements before you choose your programming strategy. It could save you a lot of time and headaches down the line.
Hi there! It sounds like you're running into a common issue with the way FATEK timers are designed to operate. Typically, on delay timers in many PLCs, including FATEK, are meant to run for their preset duration once they are triggered, regardless of the status of the output coil. However, you can programmatically manage this by using additional contacts or conditions to reset the timer once the output has been activated, effectively halting it at that point if you don't want it to run to completion. This method is often used in other brands of PLCs too, so it might be worth checking the documentation for any specific functions or workarounds related to your model. Iād be happy to discuss this further if you need more help!
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Answer: Answer: This anomaly in FATEK PLCs where on delay timers continue running even after the activation of output coils can lead to inefficiencies.
Answer: Answer: To address the issue of on delay timers in FATEK PLCs continuing to run unnecessarily, it's important to understand how the timers are programmed and if there are specific functions or settings to control their behavior.
Answer: Answer: It would be interesting to explore if other PLC brands have similar behaviors with their timers or if this anomaly is specific to FATEK PLCs. Comparing timer functionalities across different PLC brands could provide insights into industry standards and best practices.
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