Calculating Logging Storage Length in the PM5560 Datalog 1

[JamesAZZO]

Is there a simple formula for calculating how many days of logging is available in Datalog #1 when configured at 5 minute intervals and all 16 channels of logs are used?

[sesa54412_bridg]

Hi James,

The maximum log size for the PM556x (PM5560, PM5561 and PM5563) is 35040 records total.

In your scenario: the number of records, N=16 and the logging frequency: f = 5min intervals or 12 readings/hour

The number of records per day is R = N*f*24 = 16*12*24 = 4608 records/day

The total number of days, with this scenario, is 35040/R = 35040/4608 = 7.6 days or 7d 14h 30m

If you are logging at this rate, I would suggest having some supervisory system (like StruxureWare PowerSCADA Expert or StruxureWare Power Monitoring Expert) to poll the meter to ensure a contiguous database.

If I can ask, What scenario or system are you configuring the PM556x (in this way) for ?

Kind Regards,

Chris.

[JamesAZZO]

We will have PME, but requirements are 2 weeks onboard logging as it's a remote site and connection by 3G isn't always reliable there.

5 min logs is because of solar sources being measured. Cloud cover changing makes fast changes we want to see over 5 minutes.

[sesa54412_bridg]

Hi James,

What are the 16 parameters you are wanting to record at this rate ?  Can you share how you might prioritize them ?

Best Regards,

Chris.

[JamesAZZO]

1. Real Energy Into the Lord
2. Real Energy Out of the Load
3. Demand Real Power Total
4. Real Power Total
5. Real Power A
6. Real Power B
7. Real Power C
8. Reactive Power Total
9. Apparent Power Total
10. Power Factor Sign Total
11. Vln avg
12. Vln avg
13. I avg
14. THD V1
15. THD V2
16. THD V3

[Daniel_Brandao]

James, the maximum number of values you can record is 14, not 16. We are working on a spreadsheet that will automatically calculate how many days of logs you will have, based on the parameters you select and the frequency of logging. I will send you a draft version and we will publish after it's validated.

And you should be able to log 14 values every 5 minutes for around 50 days.

Let me know if questions.

[michaelthode]

Is it well understood that there can be saved over 200.000 logs in PM5561?
If the formula in the first answer is right, the capacity will be 201.600?

the leaflet says: 6 parameters for 90 days with 15 munutters interval.

Can you help find the accurate logging calculation? 🙂

Best regards

Michael Thode

[dborle]

There has been a similar thread [DEAD LINK /message/16555#16555]https://powersolutionscommunity.schneider-electric.com/message/16555#16555. When I use the datalog calculator (spreadsheet from Daniel) I get 55 days for 14 parameters with 5 minutes interval

Regards

Daniel

[camilo_gonzalez]

James, is possible Log THD Data?

Im trying with ION Setup but dont appear this parameter.

Regards!

[gaamaya_ingea-h]

Daniel Brandao​

This could be a very valuable spreadsheet for me. Its been a couple of year since you posted this, so I may guess the spreadsheet is done? haha.. Talking seriously, can someone give me a link to download the spreadsheet? Where can i find it? Since it is not in this thread.

Thanks!