node-fxplc/dist/esm/errors.js

Node.js library for low-level Mitsubishi FX (MELSEC) PLC framed protocol communication

// errors.js - definizione errori custom protocollo FXPLC
// errors.js - custom error hierarchy for FX PLC protocol
/** Base class for all FX PLC related errors */
export class FXPLCError extends Error {
    constructor(message) { super(message); this.name = 'FXPLCError'; }
}
/** PLC responded with NAK / unsupported command */
export class NotSupportedCommandError extends FXPLCError {
    constructor(msg = 'Command not supported') { super(msg); this.name = 'NotSupportedCommandError'; }
}
/** No data received within expected timeframe */
export class NoResponseError extends FXPLCError {
    constructor(msg = 'No response from PLC') { super(msg); this.name = 'NoResponseError'; }
}
/** Response frame failed structural / checksum validation */
export class ResponseMalformedError extends FXPLCError {
    constructor(msg = 'Malformed response') { super(msg); this.name = 'ResponseMalformedError'; }
}
/** Operation attempted while transport not connected/open */
export class NotConnectedError extends FXPLCError {
    constructor(msg = 'Not connected') { super(msg); this.name = 'NotConnectedError'; }
}
export default {
    FXPLCError,
    NotSupportedCommandError,
    NoResponseError,
    ResponseMalformedError,
    NotConnectedError
};