This is PLC Program for automatic bending machine for exhaust pipe.
The bending of exhaust pipes is to be controlled using PLC. The bending procedure must not start unless both the pipe and connector fitting are present. If a part is defective or not present this is indicated by an indicator light.
Write PLC program for this application using ladder diagram language.
In this program we have used Siemens S7-300 PLC and TIA Portal Software for programming.
Main cycle can be started by pressing start PB (I0.0).And can be stop by pressing stop PB (I0.1).
When exhaust pipe and connector are detected, after 2sec clamping process (Q0.1) will be ON.
If cycle is not ON or pipe is not detected, clamping Q0.1) will be OFF.
If pipe is not detected for 5 sec, error lamp (Q0.2) will be ON.
Error lamp (Q0.2) can be acknowledged by pressing acknowledges PB (I0.3).
Note :- Above application may be different from actual application. We can also make this application by using other PLC also. This example is only for explanation purpose. This is the bending machine for exhaust pipes in industries; we can use this concept in other examples also.
All parameters and graphical representations considered in this example are for explanation purpose only, parameters or representation may be different in actual applications. Also all interlocks are not considered in the application.
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