/**
 * Elrest eDesign Runtime Library Messages Model Instance MODBUS RTU Parity
 *
 * Parity adds an extra bit to each transmitted byte to help detect errors.
 *
 * That bit can be set according to different rules:
 * +---------+----------------+--------------------------+------------------------------+
 * | Parity  | Error Detection| Common Use in Modbus RTU | Notes                        |
 * +---------+----------------+--------------------------+------------------------------+
 * | none    | No             | Very common (8N1)        | Fast, only CRC protects      |
 * | even    | Yes            | Very common (8E1)        | Safest default for industry  |
 * | odd     | Yes            | Sometimes (8O1)          | Legacy devices               |
 * | mark    | No             | Rare                     | Parity bit always 1          |
 * | space   | No             | Rare                     | Parity bit always 0          |
 *
 *
 * Error detection bit in each character. Modbus-RTU devices most often use even or none.
 * Typical: 'even' (8E1) or 'none' (8N1). Match the slave exactly.
 *
 * @copyright 2025 Elrest AutomationsSysteme GMBH
 */
export declare enum MODBUSRTUParity {
    /**
     * 'none' (No Parity)
     *
     * No parity bit is added. Each frame is just start + data bits + stop bits.
     * Fastest, but no error detection at the byte level (only CRC at Modbus level).
     * Often called 8N1 → 8 data bits, None parity, 1 stop bit.
     * Common with modern Modbus devices that rely solely on CRC.
     */
    none = "none",
    /**
     * 'even' (Even Parity)
     * The parity bit is set so the total number of 1 bits (data + parity) is even.
     * Example:
     *  Data 10110010 has 5 ones (odd).
     *  Add parity = 1 → total 6 (even).
     *  More robust than 'none' because it catches single-bit errors.
     *
     * Very common in industrial Modbus RTU (often 8E1).
     */
    even = "even",
    /**
     * 'mark' (Mark Parity)
     * The parity bit is always 1, regardless of data.
     * Does not provide error detection, but enforces a “high” line level at parity time.
     * Rare; sometimes used for compatibility with legacy teletypes or old serial gear.
     */
    mark = "mark",
    /**
     * 'odd' (Odd Parity)
     * The parity bit is set so the total number of 1 bits is odd.
     * Example:
     *      Data 10110010 has 5 ones (odd).
     *      Add parity = 0 → still 5 (odd).
     *      Same error-detection strength as 'even'.
     *  Less common, but some older devices insist on 8O1.
     */
    odd = "odd",
    /**
     * 'space' (Space Parity)
     *
     * The parity bit is always 0, regardless of data.
     * Same as 'mark' in that it doesn’t check errors, just forces a “low” line level.
     * Also rare; only seen in very old/quirky devices.
     */
    space = "space"
}