Trying to create an object on my device

[tnordstrom]

I'm trying to create an object on my device (not create a local object), I'm using syntax:

bacnet.create_object(analog_value, device1, "TEST1", "Did this just get created?", presentValue=1.0, commandable=True)

But when this runs I get error AttributeError: 'Lite' object has no attribute 'create_object'.

I don't understand, I'm not starting in 'Lite' mode, I use this:

bacnet = BAC0.connect(ip='192.168.17.186/21')

Anyone with any insight? Appreciation in advance.

[bbartling]

if you want to make a BACnet server maybe look at this as an example, its just a bunch of random points and simulate values.
#381 (comment)

[tnordstrom]

I don't want to create a server, I want to create an object on my real device.

[bbartling]

so if you only want a BACnet client device to just read and write to other devices...
https://bac0.readthedocs.io/en/latest/read.html#read-examples

This is a basic example of just making simple read requests.
https://gist.github.com/bbartling/88e95557b0b297bea721c0f285657d53#file-simple_read_request-py

To me when someone states "objects" at least in my mind its affiliated with a BACnet server project where a client device is requesting some sort of data associated with an "object" like a point value or name or device description.... where then the client script requests whatever BACnet object that the server is hosting. I could be wrong with the terminology but that's my best guess...

[bbartling]

Ah okay. That's almost like making a "clone" of a device, right?

So if you were on a LAN with this device that has 512 points you would need to discover it and then do a point discovery process and loop through every BACnet object attribute...

You know what I would almost recommend is try using bacpypes snapshot:
https://github.com/JoelBender/bacpypes-snapshot

Its a tool that just snaps shots every possible point attribute on a BACnet device. You need to know a few things on bacpypes which is a few notches harder IMHO than BAC0 but its a pretty cool tool.

The output is an SQL lite database that you can replay through Python everything that was snapshotted...

It wont create a clone BACnet device if thats what your looking for... and if thats the case I would hard code and manually replicate your 512 points which can be done it would look something similar to the first link I sent where the BACnet server is created in a loop.
#381 (comment)

[tnordstrom]

I'm not trying to clone anything.
My device supports objects.
My device's objects can be deleted or created.
A "brand new" device has a minimal set of objects.
Devices support a maximum number of each type of object.
I want to write a Python script that creates this maximum number of objects of all supported types.

I'm not interested in a snap shot of all my attributes. I just want to create objects.

Question: does call create_object do what I need? The documentation for this call is virtually nonexistent. No examples, no description.

[tnordstrom]

Section 15.3 of the BACnet standard goes over CreateObject service @ChristianTremblay maybe you could explain the create_object method a little?

[ChristianTremblay]

It is a clash of name.

Let say you have a bacnet device provided by manufacturer X.

Normally, there is a proprietary software used to configure/program that device that is provided by the manufacturer.

Of all the devices I saw in the field, I never saw one supporting the dynamic creation of object through bacnet.

The function inside BAC0 isn't meant to be a bacnet request to dynamically create an object in a device. It was meant as a helper to create local objects in the BAC0 instance.

[tnordstrom]

Oh, ok. Thanks for the clarification.