# vyra_base.com.industrial.opcua

OPC UA Industrial Protocol Module

OPC Unified Architecture for SCADA/MES northbound communication.

Components: - OpcuaClient: Client for connecting to OPC UA servers - OpcuaServer: Server for hosting OPC UA endpoints - Handlers: Connection, subscription, and node handlers - Provider: VYRA integration provider - Callable: VYRA Callable wrapper for method calls - Speaker: VYRA Speaker wrapper for subscriptions

Features: - Client/Server architecture - Node read/write operations - Method calls - Subscriptions with data change notifications - Security (authentication, encryption)

Usage:

# Client
from vyra_base.com.industrial.opcua import OpcuaClient

client = OpcuaClient(endpoint="opc.tcp://192.168.1.10:4840")
await client.connect()
value = await client.read_node("ns=2;i=1001")
await client.close()

# Server
from vyra_base.com.industrial.opcua import OpcuaServer

async with OpcuaServer(endpoint="opc.tcp://0.0.0.0:4840") as server:
    idx = await server.register_namespace("http://example.com")
    node = await server.add_variable(idx, "Temperature", 23.5)