OPC UA MCP server that connects to industrial automation systems and exposes their data points through a standardized interface. Built with FastMCP and asyncua, it provides tools for reading and writing OPC UA node values while handling connection lifecycle management. Particularly valuable for industrial automation engineers and system integrators who need to monitor and control OPC UA-enabled devices through AI assistants.
Read the value of a specific OPC UA node. Parameters: node_id (str): OPC UA node ID (e.g., ns=2;i=2). Returns: A string with the node ID and its value (e.g., 'Node ns=2;i=2 value: 42').
Write a value to a specific OPC UA node. Parameters: node_id (str): OPC UA node ID (e.g., ns=2;i=3), value (str): Value to write (converted based on node type). Returns: A success or error message (e.g., 'Successfully wrote 100 to node ns=2;i=3').
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