DII
DevHeads IoT Integration Server•5mo ago
Boss lady

How can I fix "BadNodeIdUnknown" error reading OPC UA sensor data on UP Squared board?

Hello dev i am setting up an industrial IoT gateway using an UP Squared board with Embedded Linux. The gateway should read data from an OPC UA temperature sensor, I have confirmed the OPC UA server IP address and endpoint, checked the node ID and namespace index, made sure the OPC UA client library is correctly installed and configured. But i am getting the error Error reading temperature: BadNodeIdUnknown 
from opcua import Client

client = Client("opc.tcp://192.168.1.10:4840")
client.connect()

try:
    temperature_node = client.get_node("ns=2;i=2")
    temperature = temperature_node.get_value()
    print(f"Temperature: {temperature}")
except Exception as e:
    print(f"Error reading temperature: {e}")
finally:
    client.disconnect()
from opcua import Client

client = Client("opc.tcp://192.168.1.10:4840")
client.connect()

try:
    temperature_node = client.get_node("ns=2;i=2")
    temperature = temperature_node.get_value()
    print(f"Temperature: {temperature}")
except Exception as e:
    print(f"Error reading temperature: {e}")
finally:
    client.disconnect()
@Middleware & OS
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