Write the following PLC Program to Energize or De-energize the Outputs based on Events.
A certain switch (I:1/0) is to start a process.
The process is to run for 30 seconds, stop for 10 seconds and then repeat as long switch I:1/0 remains closed.
Opening I:1/0 at any time is to reset all timers and de-energize all outputs. Output O:2/0 is to be energized during the 30s run period and output O:2/1 is to be energized during the 10s stop period.
During the run period, a single output O:2/2 is controlled by input I:1/1. If I:1/1 is open (at the beginning of the run period) O:2/2 is to be off for the first 5 seconds then on for 10 seconds.
If I:1/1 is closed (at the beginning of the run period) O:2/2 is to be off for the first 10 seconds then on for 15 seconds.
Changing I:1/1 after the run period has begun should not change the above sequence. Output O:2/2 is always to be off during the stop period.
You can share the detailed explanation of above PLC ladder logic with comments section.
Author: Dr. D. J. Jackson
If you liked this article, then please subscribe to our YouTube Channel for PLC and SCADA video tutorials.
You can also follow us on Facebook and Twitter to receive daily updates.
Read Next:
VFD simulator download: Master the online tool from the Yaskawa V1000 & programming software for…
The conveyor sorting machine is widely used in the packing industries using the PLC program…
Learn the example of flip-flop PLC program for lamps application using the ladder logic to…
In this article, you will learn the STAR DELTA programming using PLC controller to start…
Lube oil consoles of rotary equipment packages in industrial process plants are usually equipped with…
Rotating equipment packages such as pumps, compressors, turbines need the lube oil consoles for their…
View Comments
Which software you used
Hi, exactly what I've been searching for - Thanks.
Is it possible to write it in STL? I struggle a bit with Ladder.
Many Thanks.
Tsepo
Hi.my name Million Haile.can you show me ladder diagram for bar soap wrapping machine