Downtime exact time

willxfmr said:

The easiest way would be to put a retentive timer in that runs when the machine is not running. The only issue would be that all "not running" time would be considered "downtime". If you need more precision, then you would have to take into consideration what exactly conditions should be called "downtime". You would also need a way to reset the timer at an interval of your choosing. Displaying the accumulated downtime is a different issue. The short answer would to to put it on your HMI if you have one.

Bubba.

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janner_10 said:

Not familiar with Omron, but with AB you would be reading the PLC Date / Time for example in MyArray[6], then when the downtime bit goes high / low, copy that to your DowntimeArray[6].

As the above poster mentions, the PLC doesn't know what downtime is, so you need to write that part.

If the info is used as a stick to beat someone with, use with great caution, the operators will do whatever to deflect from them.

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cardosocea said:

Down time is the time the machine is stopped due to a fault... couldn't you OR the alarms that stop the machine and use that bit to feed the timer?

Also, once you know how much, the next question will be why, so you could straight off the bat add an alarm counter to the system and detect which faults happen most to direct the attention to them.

At the end of the day, if you focus on faults and how to fix them, the operators will be happy. If the purpose is to push the operators to do more without paying attention to the real cause of the low productivity, it will only make things worse for all.

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gclshortt said:

http://www.automation-talk.info/2011/05/using-plc-clock-time-in-omron-plc.html

In the CP1E, copy the real time clock to a data memory every scan. Use the first scan bit (A200.11 First Cycle Flag) to move the data memory (time machine when down) to another location.

Regards,

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