MCP Servers / development / WinCC Unified MCP Server

WinCC Unified MCP Server

JSON →

httpnone★ 11development

An MCP server for interfacing with SIEMENS WinCC Unified SCADA systems via their GraphQL API.

github ↗

Install

How to run this server

[ { "cmd": "npm install -g @modelcontextprotocol/tools`)", "imports": [] } ]

server path: wincc-unified-mcp-server

Tools

What this server exposes

Logs a user in to WinCC Unified using username and password. Stores the session token for subsequent requests. It is optionally, because the MCP server could be started in the way that it is doing automatically a logon with the service account.

browse-objects

Queries tags, elements, types, alarms, logging tags and basically anything that has a configured name, based on the provided filter criteria.

get-tag-values

Queries tag values from WinCC Unified. Based on the provided names list. If directRead is true, values are taken directly from PLC.

get-logged-tag-values

Queries logged tag values from the database.

get-active-alarms

Query active alarms from the provided systems.

get-logged-alarms

Query logged alarms from the storage system.

write-tag-values

Updates tags, based on the provided TagValueInput list.

acknowledge-alarms

Acknowledge one or more alarms. Each alarm identifier must have the name of the configured alarm, and optionally an instanceID. If the instanceID is 0 or not provided, all instances of the given alarm will be acknowledged.

reset-alarms

Reset one or more alarms. Each alarm identifier must have the name of the configured alarm, and optionally an instanceID. If the instanceID is 0 or not provided, all instances of the given alarm will be reset.

Configuration

Environment & auth

authnone

envGRAPHQL_URL

Resources

githubhttps://github.com/vogler75/winccua-mcp-server ↗