Search found 7 matches

by sensij
Tue Oct 20, 2015 11:09 pm
Forum: Developers Sandbox - Meter Data
Topic: EKM-Omnimeter RS-485 Data
Replies: 44
Views: 57544

Re: EKM-Omnimeter RS-485 Data

Here is our CRC code... This is a standard lookup table implementation with the standard CRC16 polynomial, the differences in computation are in the code, dealing with the initial value, endianness, and 7-bit encoding. static const uint16_t const ekmCrcLut[256] = { <snip> }; uint16_t ekmCheckCrc( c...
by sensij
Wed Jun 03, 2015 12:10 am
Forum: Developers Sandbox - Meter Data
Topic: EKM Push Summary API
Replies: 8
Views: 15488

Re: EKM Push Summary API

Thanks for sharing this. It is a great way to recover data that I missed.
by sensij
Mon May 11, 2015 9:46 pm
Forum: EKM Metering Systems
Topic: EKM Push
Replies: 53
Views: 50187

Re: EKM Push

Rebooting the Push (or the meter) resolved the double posts. I'll post on this topic again if it happens in the future.

Edit... regarding the Excel data connection, I rebuilt the query specifically filtering for my fields of interest, and they populated correctly. Good enough for me.
by sensij
Mon May 11, 2015 1:58 pm
Forum: EKM Metering Systems
Topic: EKM Push
Replies: 53
Views: 50187

Re: EKM Push

Thanks... I had seen that excel document, and may use that as a data retention method, but I think it needs to be updated. The address it lists for the query isn't quite right. When I use the xml output address built from the EKM API builder, the data connection screen in Excel shows the right infor...
by sensij
Sun May 10, 2015 9:07 pm
Forum: EKM Metering Systems
Topic: EKM Push
Replies: 53
Views: 50187

Re: EKM Push

One more question... although the API call supports filters by date, it appears only the most recent 1024 data points are available. With 1 min sampling, that is about 17 hours. If data older than that is necessary, it looks like it must be saved at that time or it is lost. Also, when I'm reading th...
by sensij
Fri May 08, 2015 11:27 am
Forum: EKM Metering Systems
Topic: EKM Push
Replies: 53
Views: 50187

Re: EKM Push

Yes it does, thank you.
by sensij
Fri May 08, 2015 9:51 am
Forum: EKM Metering Systems
Topic: EKM Push
Replies: 53
Views: 50187

Re: EKM Push

A quick update to this... it looks like PVOutput has created an uploader for the v4 meter. I have my meter on solar generation and am not sure the consumption by the inverter at night will be enough to register in the reverse direction, but I'll watch for that. With regard to data from reading the m...