Replies: 3 comments 3 replies
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sorry that the code indenting got lost. This is python 3.12.3 on ubuntu 24..04. |
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First thing I would try is getting rid of the time.sleep. It's a synchronous call and stop everything, Use asyncio.sleep instead import asyncio
import BAC0
import logging
import pandas as pd
import time
async def main():
BAC0.log_level(stdout=logging.DEBUG)
bacnet = BAC0.start(ip='172.18.1.29/24')
await bacnet.who_is()
await asyncio.sleep(2)
await bacnet.devices
print(bacnet.discoveredDevices)
if __name__ == '__main__':
asyncio.run(main()) |
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That wasn't the problem. |
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Sometimes I read too fast... you look into bacnet.discoveredDevices... but never call bacnet.discover (which is a different thing than whois) import asyncio
import BAC0
import logging
import pandas as pd
import time
async def main():
BAC0.log_level(stdout=logging.DEBUG)
async with BAC0.start() as bacnet:
await bacnet._discover()
await bacnet.devices
while True:
await asyncio.sleep(2)
print(bacnet.discoveredDevices)
if __name__ == '__main__':
asyncio.run(main()) |
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When I did bacnet.discover, it did not work, no messages sent out. When I changed it to bacnet._discover it worked. The documentation clearly says to use bacnet.discover. What is the difference and why does it not work as documented? |
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bacnet.discover() is synchronous and start a asyncio.task... bacnet.discover() is useful in the context of the REPL or inside a Jupyter Notebook where you would explore a network and you don't want to freeze everything waiting for the discovery result. |
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Hi,
I am new to BAC0 and am trying to get it to work for a simple case first. I have two bacnet/IP thermostats running. When I run bacpypes3, the whois works fine.
When I try the same in BAC0, wireshark shows the who-is go out and the 2 i-ams come back 20ms later, but BAC0 does not seem to recognize them. Any thoughts what is going on?
thanks,
jerry
code:
output debugging
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