/**
 * Modbus protocol buffer building and parsing utilities
 *
 * These pure functions handle the low-level Modbus protocol details
 * (buffer construction, parsing) independent of the transport layer.
 */
export interface RegisterReadRequest {
    unitID: number;
    functionCode: number;
    addr: number;
    length: number;
}
export interface RegisterWriteRequest {
    unitID: number;
    functionCode: number;
    addr: number;
    values: number[];
}
export interface CoilReadRequest {
    unitID: number;
    functionCode: number;
    addr: number;
    length: number;
}
export interface CoilWriteRequest {
    unitID: number;
    functionCode: number;
    addr: number;
    value: boolean;
}
/**
 * Builds a Modbus register read request buffer
 */
export declare function buildRegisterReadRequest(params: RegisterReadRequest): Buffer;
/**
 * Parses register values from a Modbus response buffer
 */
export declare function parseRegisterReadResponse(response: Buffer, request: {
    unitID: number;
    functionCode: number;
}): number[];
/**
 * Builds a Modbus register write request buffer
 * Handles both single (0x06) and multiple (0x10) register writes
 */
export declare function buildRegisterWriteRequest(params: RegisterWriteRequest): Buffer;
/**
 * Builds a Modbus coil read request buffer
 */
export declare function buildCoilReadRequest(params: CoilReadRequest): Buffer;
/**
 * Parses a single coil value from a Modbus response buffer
 */
export declare function parseCoilReadResponse(response: Buffer, request: {
    unitID: number;
    functionCode: number;
}): boolean;
/**
 * Builds a Modbus coil write request buffer
 */
export declare function buildCoilWriteRequest(params: CoilWriteRequest): Buffer;
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