Getting part of SL7000 generic data with Python

Forum Rules

Before commenting read Forum rules

Don't comment the topic if you have a new question.

You can create a new topic selecting correct category from Gurux Forum and then create a new topic selecting "New Topic" from the top left.

By yuce , 7 November, 2019
Forums
Gurux.DLMS

Hi,
I'm trying to read a range of generic profile with the Python library. How should i query the last x days or last x entries? Is this a meter based problem or am I doing something i shouldn't?

Itron SL7000 SL761
Code snippet;
obj = client.objects.findByLN(ObjectType.NONE, "0.0.99.1.0.255")
val = reader.read(obj, 3)

today = datetime.datetime.today()
today = datetime.datetime(today.year, today.month, today.day) # midnight of date 00:00:00
yesterday = today - datetime.timedelta(days=1)
dayBefore = today - datetime.timedelta(days=2)

val = client.readRowsByRange(obj, dayBefore, yesterday) #returns nothing
val = client.readRowsByEntry(obj, 1,10) #returns nothing
#val = reader.read(obj, 2) # returns 13564 rows. Takes too long

Thanks in advance.
Best wishes.

Kurumi

6 years 8 months ago

Hi,

SL7000 is causing some problems. All the meters or profile generic objects don't support readRowsByEntry.

Can you use GXDLMSDirector to read your meter? We have used it a lot with SL 7000.
Try also read a longer time by readRowsByRange. Is there data on that time?

BR,

Mikko

yuce

6 years 8 months ago

Thanks for the prompt reply.
I can read the same period with the GXDLMSDirector. Although it shows a "Access Error: Device reports scope of access violated" warning for the right cell of entries, it gets 96 entries. I have attached a screenshot of GXDLMSDirector. It shows the cell with the access error.

Program reaches
return self.read(pg, 2) line in "GXDLMSClient.py/ def readRowsByRange(self, pg, start, end, columns=None):" function but returns without printing any RX TX traffic or errors/warnings.

I have tried to change and mix the start and end dates but result doesn't change.

Best wishes.
Yuce

Image

Kurumi

6 years 8 months ago

Hi,

Can you send the GXDLMSDirector trace to me by email? You can find my email info here:
https://www.gurux.fi/AboutUs

Send also python trace. You can get it with -t Verbose parameter.

BR,

Mikko

Kurumi

6 years 8 months ago

Hi,

I didn't remember, but this is the data that SL7000 is sending. It's an older device and not support DLMS very well. You need "Logical Devices SK761" -document to find out what meter is returning.
You need to ask it from the meter vendor.

BR,
Mikko