I'm sorry if I'm wrong because I'm not an expert in PLCs, but as I understand the memory bits of a PLC simulate physical switches and push buttons. By their nature, the bits are in state (0), which is why a MAKE command coincides with a switch that changes from an open state (0) to (1) when the switch is pressed by user, but this does not happen with a BREAK command that in order to is valid, the PLC memory bit which, as we said, is in a normal state (0) should become (1), that is why the electrical continuity of the circuit does not coincide with the logic BREAK command of the PLC, which in order to be valid, the memory bit must from (0) to (1) when the user presses the switch. I hope I didn't make the situation worse.
Dear Naveen, you can find all tutorials related to commands and edges in our best selling course -Learn 5 PLC's in a Day.. more details are here: nfiautomation.org/courses/learn-plc/
I'm sorry if I'm wrong because I'm not an expert in PLCs, but as I understand the memory bits of a PLC simulate physical switches and push buttons. By their nature, the bits are in state (0), which is why a MAKE command coincides with a switch that changes from an open state (0) to (1) when the switch is pressed by user, but this does not happen with a BREAK command that in order to is valid, the PLC memory bit which, as we said, is in a normal state (0) should become (1), that is why the electrical continuity of the circuit does not coincide with the logic BREAK command of the PLC, which in order to be valid, the memory bit must from (0) to (1) when the user presses the switch. I hope I didn't make the situation worse.
thank you sir... i have this confusion, but now its clears........thanks a lot.
Happy to hear that !
Sir which software did you use to emulate the above example?
Is there a freeware available to practice the same without an actual PLC.
Can you please explain latching since you have jumped directly on it i didn't understand this latching thing
Thank you Sir
sir from where i download the software of automation studio plz send me link
I am supposed to write features of no and nc can you answer
can you also clear the doubt for Negative and Positive Transition Contact?
Dear Naveen, you can find all tutorials related to commands and edges in our best selling course -Learn 5 PLC's in a Day.. more details are here: nfiautomation.org/courses/learn-plc/
thanks fellows!!!
Thanks
want to know how PLC gives command to AC drive for speed increase or decrese
You can learn this in our Drive Course available at: nfiautomation.org/courses/advanced-ac-drive/
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