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Chris123456789

Multiple Stop on SR bit.

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Evening, 

I have a SR bit in a program to start / stop a machine.

There is one Start button (HMI) on the Set but several Stops and timers to stop the machine on the Reset. At the moment all the Stops are in parallel with a NOT gate after the NC ones.

Is there a better way to do this?

Thanks,

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NC followed by NOT? why not, if it helps keep thing clearer... 

btw this is clearly some Siemens PLC. this logic can have both S and R active at the same time and if i remember SR instruction handles that differently on different CPUs which is why i would avoid such code (output may be set or reset or oscillating). i like logic that works all the time, no matter what and the same way on every CPU, even different brand... but that's me.

 

 

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