RaggSac
Member
Hi,
What is the best way of totalizing flow, number 1 or 2?
1. Using a flow-meters built-in totalizer pulse, that will pulse for say every 10m3. Then you only count pulse and multiply with some conversion factor.
What if the PLC lose pulses? (using profibus and no speed counter input, task interrupted, etc)
2. Using this formula: Total = Total + (Flow / TimeConversion) * TaskPeriod.
The risk with this method is that you need to be aware of adding small numbers in Real format.
Any Thoughts, better methods?
Regards Sac
What is the best way of totalizing flow, number 1 or 2?
1. Using a flow-meters built-in totalizer pulse, that will pulse for say every 10m3. Then you only count pulse and multiply with some conversion factor.
What if the PLC lose pulses? (using profibus and no speed counter input, task interrupted, etc)
2. Using this formula: Total = Total + (Flow / TimeConversion) * TaskPeriod.
The risk with this method is that you need to be aware of adding small numbers in Real format.
Any Thoughts, better methods?
Regards Sac