ethernet-ip
Version:
A feature-complete EtherNet/IP client for Rockwell ControlLogix/CompactLogix PLCs
26 lines • 895 B
TypeScript
/**
* Read helpers — build read requests and parse responses.
*/
import { TagValue } from './types';
/**
* Build a CIP Read Tag request.
*/
export declare function buildReadRequest(tagName: string, count?: number): Buffer;
/**
* Detect struct type marker (wire bytes A0 02).
*/
export declare function isStructTypeParam(data: Buffer): boolean;
/** Rockwell built-in STRING struct handle — STRING tags report as struct, not atomic 0xD0.
* Custom string UDTs (e.g. STRING20) will have different handles and need template retrieval. */
/**
* Parse a CIP Read Tag response into a JS value.
*
* Atomic response data: [typeCode(2), value(N)]
* Struct response data: [A0 02(2), structHandle(2), value(N)]
*/
export declare function parseReadResponse(data: Buffer, tagName: string): {
type: number;
isStruct: boolean;
value: TagValue;
};
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