export declare enum MetadataMODBUSEntity {
    /**
     * **Coil (0xxxx)**
     *
     * - Data Type: Single bit
     * - Address Range: 00001–09999
     * - Access: **Read/Write**
     * - Typical Use: Digital outputs (on/off), relay states, discrete control values.
     * - Related FCs: FC1 (Read Coils), FC5 (Write Single Coil), FC15 (Write Multiple Coils).
     */
    Coil = "Coil",
    /**
     * **Discrete Input (1xxxx)**
     *
     * - Data Type: Single bit
     * - Address Range: 10001–19999
     * - Access: **Read-Only**
     * - Typical Use: Digital inputs such as sensor contacts, push buttons, limit switches.
     * - Related FCs: FC2 (Read Discrete Inputs).
     */
    DiscreteInput = "DiscreteInput",
    /**
     * **Holding Register (4xxxx)**
     *
     * - Data Type: 16-bit word
     * - Address Range: 40001–49999
     * - Access: **Read/Write**
     * - Typical Use: Analog outputs, configuration parameters, counters.
     * - Related FCs: FC3 (Read Holding Registers), FC6 (Write Single Register),
     *   FC16 (Write Multiple Registers), FC22 (Mask Write Register).
     */
    HoldingRegister = "HoldingRegister",
    /**
     * **Input Register (3xxxx)**
     *
     * - Data Type: 16-bit word
     * - Address Range: 30001–39999
     * - Access: **Read-Only**
     * - Typical Use: Analog input values such as temperature, pressure, or flow sensors.
     * - Related FCs: FC4 (Read Input Registers).
     */
    InputRegister = "InputRegister",
    /**
     * **Device (Identification via FC43/14)**
     *
     * - Data Type: Structured identification objects
     * - Address Range: *Not bound to coil/register ranges*
     * - Access: **Read-Only**
     * - Typical Use: Provides information about the Modbus device itself
     *   (e.g., Vendor Name, Product Code, Revision, Serial Number).
     * - Related FCs: FC43/14 (Read Device Identification).
     *
     * Unlike coils or registers, the **Device entity** is not tied to a
     * memory address range but represents metadata about the device.
     */
    Device = "Device"
}