Daily counter Micrologix 1100

saucekorn69

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Mar 2005

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Quebec

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• Jun 18, 2008

• #1

Hello guys,

I am programming under Rslogix 500 with a micrologix 1100 and I would like to know how can I create a counter which would be automatically reset every 24 hours ?

I just want to count how many products per day the machine will do, I know this is a really basic question but I guess I am still a beginner !

Thanks !

Nicolas.

 

OkiePC

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• Jun 18, 2008

• #2

 

saucekorn69

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• Jun 18, 2008

• #3

Thank you !

 

Ken Moore

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• Jun 18, 2008

• #4

Depending on your production rate, cycle time etc....
You may want to use a one shot, otherwise you are going to lose one second of counting versus one plc scan worth of lost counts.

 

Last edited: Jun 18, 2008

saucekorn69

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• Jun 18, 2008

• #5

I will definitely use a one shot on this. I never thought the answer would be so quick and easy, thanks guys !

Best regards !

Nicolas.

 

TConnolly

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• Jun 18, 2008

• #6

In the ML1100 use the real time clock instead of S:40-42.
With a oneshot all you need to check is the hours, RTC:0.HR.

                         Storage_bit     Counter 

--+-------------------+----[ONS]----------(RES)--

  |EQU                |

  |Source A  RTC:0.HR |

  |Source B         0 |

  +-------------------+