config.example.json

{
  // How often (ms) the server reads every PLC and writes the combined data back.
  "operationInterval": 5000,

  // Reconnection behaviour for a dropped PLC connection.
  "maxReconnectAttempts": 5,
  "reconnectInterval": 1000,

  // Port the HTTPS server / JSON API listens on.
  "httpPort": 3011,

  // Base URL + endpoint paths the built-in web GUI uses to reach this server.
  "apiConfig": {
    "baseUrl": "https://YOUR_SERVER_IP",
    "dataEndpoint": "/data",
    "manualEndpoint": "/manual",
    "guiEndpoint": "/gui"
  },

  // One entry per PLC.
  //   dbNumber     = the DB this PLC shares (its "share_this_data" block)
  //   syncDbNumber = the combined sync DB present on every PLC (DB200 convention)
  //   variables    = BOOL -> { type, byte, bit } ; INT/REAL -> { type, offset }
  // The server attaches no meaning to variable names; structure the shared data
  // however you like. The names below are generic placeholders.
  "plcs": [
    {
      "name": "PLC_1",
      "ip": "192.0.2.10",
      "rack": 0,
      "slot": 1,
      "dbNumber": 1,
      "syncDbNumber": 200,
      "variables": {
        "machine_running": { "type": "BOOL", "byte": 0, "bit": 0 },
        "current_speed":   { "type": "INT",  "offset": 2 },
        "temperature":     { "type": "REAL", "offset": 4 }
      }
    },
    {
      "name": "PLC_2",
      "ip": "192.0.2.11",
      "rack": 0,
      "slot": 1,
      "dbNumber": 1,
      "syncDbNumber": 200,
      "variables": {
        "setpoint_speed": { "type": "INT",  "offset": 0 },
        "fault_active":   { "type": "BOOL", "byte": 2, "bit": 0 }
      }
    }
  ],

  // Optional MQTT brokers. Leave as [] if you do not use MQTT.
  "mqttConfigs": [
    {
      "brokerUrl": "mqtt://broker.example.com:1883",
      // Incoming topics merged into the shared data set (optional).
      "subscribeTopics": {
        "plc/setpoint": { "dataType": "INT", "syncVariable": "setpoint_speed" }
      },
      // Topic the combined PLC data + server heartbeat is published to.
      "publishTopic": "plc/data"
    }
  ]
}