Create a PLC Program for Automatic Liquid Mixing Application using ladder logic programming. Study about mixing process using a PLC ladder diagram.
Problem Description
In many industries, there are lots of mixing system used for solutions mixing. Some plants use complete automation or semi-automation.
In a manual system, there are so many disadvantages such as lack of Accuracy, Time delay problems, loss of liquids, Time consumption, etc.
Here we are discussing the semi-automatic application of a mixing system.
For this example, we use PLC programming and for that we use Siemens S7-1200 PLC.
For easy explanation, we can consider simple example of mixing system as shown above.
In this application pure unmixed solution can be prepared by the operator using switches S1 and S2. And mixed solution or material can be prepared by the operator using switch S3.
Operator observes the level of the tank and he can discharge the liquid inside tank by operating valve V5.
Also the agitator motor M will be in running while tank is being filled. We will provide interlock system so operator cannot operate both switches at same time.
V1, V3 and V5 are manual valves which is not connected to the PLC.
V2 and V4 are electronically operated valves which can be controlled by PLC.
Digital Inputs
There are three switches S1, S2 & S3
Digital Outputs
We have two valves V2 & V4. one Agitator Motor M1
Note : The above PLC Logic provided for basic idea about application of PLC in Liquid Mixing Application. The Logic is limited and not complete application.
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:
In this article, we are going to discuss about shutter door control using induction motor…
Electrical Drives control the motion of electric motors. Motion control is required in industrial and…
PLC ladder logic design to control 3 motors with toggle switch and explain the program…
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…
View Comments
Tons of teaching information for free,
Thank you so much I am a program Learner.
I have a MicroLogix 1100 processor with basic 10 inputs and 6 outputs. Will add some more IO's.
Planning to teach electricians and electrical engineers.
Again Thanks
THERE ARE 3 INPUTS 2 OUTPUTS. PLEASE CHECK THE ADDRESS OF COIL Q 0/2 INSTEAD Q 0/3 IN NETWORK #3
I have never seen any diagram. Why