Traceback (most recent call last):
File "/home/pses/site_level_controller/bacnet_interface/read-property.py", line 89, in <module>
asyncio.run(main())
File "/usr/lib/python3.10/asyncio/runners.py", line 44, in run
return loop.run_until_complete(main)
File "/usr/lib/python3.10/asyncio/base_events.py", line 649, in run_until_complete
return future.result()
File "/home/pses/site_level_controller/bacnet_interface/read-property.py", line 59, in main
response = await app.read_property(
File "/home/pses/site_level_controller/.venv/lib/python3.10/site-packages/bacpypes3/service/object.py", line 146, in read_property
property_value = response.propertyValue.cast_out(property_type)
File "/home/pses/site_level_controller/.venv/lib/python3.10/site-packages/bacpypes3/constructeddata.py", line 1751, in cast_out
result = cls.decode(tag_list)
File "/home/pses/site_level_controller/.venv/lib/python3.10/site-packages/bacpypes3/primitivedata.py", line 1013, in decode
raise InvalidTag("unsigned application tag expected")
bacpypes3.errors.InvalidTag: unsigned application tag expected
I was testing objects and reading properties on a BACnet device and I've run into an error I haven't been able to solve.
I went back to the example code and found I had the same issue.
samples/read-property.py
python read-property.py 10.102.15.56 largeAnalogValue:1 covIncrement