import { EventEmitter } from 'events';
export interface S7ServerEvent {
    EvtCode: number;
    EvtRetCode: number;
    EvtParam1: number;
    EvtParam2: number;
}
export interface S7ReadWriteEvent {
    Sender: number;
    Area: number;
    DBNumber: number;
    Start: number;
    Size: number;
    Data: Buffer;
    Operation: number;
}
type ServerCallback = ((err: number | null) => void) | undefined;
export declare class S7Server extends EventEmitter {
    static readonly srvAreaPE = 0;
    static readonly srvAreaPA = 1;
    static readonly srvAreaMK = 2;
    static readonly srvAreaCT = 3;
    static readonly srvAreaTM = 4;
    static readonly srvAreaDB = 5;
    static readonly OperationRead = 0;
    static readonly OperationWrite = 1;
    static readonly evcServerStarted = 1;
    static readonly evcServerStopped = 2;
    static readonly evcListenerCannotStart = 4;
    static readonly evcClientAdded = 8;
    static readonly evcClientRejected = 16;
    static readonly evcClientNoRoom = 32;
    static readonly evcClientException = 64;
    static readonly evcClientDisconnected = 128;
    static readonly evcClientTerminated = 256;
    static readonly evcClientsDropped = 512;
    static readonly evcPDUincoming = 65536;
    static readonly evcDataRead = 131072;
    static readonly evcDataWrite = 262144;
    static readonly evcNegotiatePDU = 524288;
    static readonly evcReadSZL = 1048576;
    static readonly evcClock = 2097152;
    static readonly evcUpload = 4194304;
    static readonly evcDownload = 8388608;
    static readonly evcDirectory = 16777216;
    static readonly evcSecurity = 33554432;
    static readonly evcControl = 67108864;
    static readonly evcAll = 4294967295;
    static readonly evcNone = 0;
    static readonly errSrvCannotStart = 1048576;
    static readonly errSrvDBNullPointer = 2097152;
    static readonly errSrvAreaAlreadyExists = 3145728;
    static readonly errSrvUnknownArea = 4194304;
    static readonly errSrvInvalidParams = 5242880;
    static readonly errSrvTooManyDB = 6291456;
    static readonly errSrvInvalidParamNumber = 7340032;
    static readonly errSrvCannotChangeParam = 8388608;
    static readonly S7AreaPE = 129;
    static readonly S7AreaPA = 130;
    static readonly S7AreaMK = 131;
    static readonly S7AreaDB = 132;
    static readonly S7AreaCT = 28;
    static readonly S7AreaTM = 29;
    static readonly S7WLBit = 1;
    static readonly S7WLByte = 2;
    static readonly S7WLWord = 4;
    static readonly S7WLDWord = 6;
    static readonly S7WLReal = 8;
    static readonly S7WLCounter = 28;
    static readonly S7WLTimer = 29;
    static readonly S7CpuStatusRun = 8;
    static readonly S7CpuStatusStop = 4;
    static readonly S7CpuStatusUnknown = 0;
    static readonly SrvStopped = 0;
    static readonly SrvRunning = 1;
    static readonly SrvError = 2;
    static readonly Block_OB = 56;
    static readonly Block_DB = 65;
    static readonly Block_SDB = 66;
    static readonly Block_FC = 67;
    static readonly Block_SFC = 68;
    static readonly Block_FB = 69;
    static readonly Block_SFB = 70;
    readonly srvAreaPE = 0;
    readonly srvAreaPA = 1;
    readonly srvAreaMK = 2;
    readonly srvAreaCT = 3;
    readonly srvAreaTM = 4;
    readonly srvAreaDB = 5;
    readonly OperationRead = 0;
    readonly OperationWrite = 1;
    readonly evcServerStarted = 1;
    readonly evcServerStopped = 2;
    readonly evcListenerCannotStart = 4;
    readonly evcClientAdded = 8;
    readonly evcClientRejected = 16;
    readonly evcClientNoRoom = 32;
    readonly evcClientException = 64;
    readonly evcClientDisconnected = 128;
    readonly evcClientTerminated = 256;
    readonly evcClientsDropped = 512;
    readonly evcPDUincoming = 65536;
    readonly evcDataRead = 131072;
    readonly evcDataWrite = 262144;
    readonly evcNegotiatePDU = 524288;
    readonly evcReadSZL = 1048576;
    readonly evcClock = 2097152;
    readonly evcUpload = 4194304;
    readonly evcDownload = 8388608;
    readonly evcDirectory = 16777216;
    readonly evcSecurity = 33554432;
    readonly evcControl = 67108864;
    readonly evcAll = 4294967295;
    readonly evcNone = 0;
    private server;
    private clients;
    private nextClientId;
    private _lastError;
    private _eventsMask;
    private _cpuStatus;
    private _resourceless;
    private _maxClients;
    private _pduLength;
    private areas;
    Start(callback?: ServerCallback): void;
    StartTo(ip: string, callback?: ServerCallback): void;
    StartToPort(ip: string, port: number, callback?: ServerCallback): void;
    Stop(callback?: ServerCallback): void;
    GetParam(paramNumber: number): number;
    SetParam(paramNumber: number, value: number): boolean;
    SetResourceless(enabled: boolean): void;
    RegisterArea(areaCode: number, index: number, buffer: Buffer): number;
    UnregisterArea(areaCode: number, index: number): number;
    SetArea(areaCode: number, index: number, buffer: Buffer): number;
    GetArea(areaCode: number, index: number): Buffer | null;
    LockArea(_areaCode: number, _index: number): void;
    UnlockArea(_areaCode: number, _index: number): void;
    GetEventsMask(): number;
    SetEventsMask(mask: number): void;
    ServerStatus(): number;
    ClientsCount(): number;
    GetCpuStatus(): number;
    SetCpuStatus(status: number): void;
    ErrorText(errNum: number): string;
    EventText(event: S7ServerEvent): string;
    LastError(): number;
    emitEvent(evtCode: number, retCode: number, param1: number, param2: number): void;
    private onClientConnected;
    getAreaBuffer(srvArea: number, dbNumber: number): Buffer | null;
    isResourceless(): boolean;
}
export {};
//# sourceMappingURL=server.d.ts.map