ethernet-ip
Version:
A feature-complete EtherNet/IP client for Rockwell ControlLogix/CompactLogix PLCs
83 lines • 3.35 kB
JavaScript
;
/**
* Controller properties — Get Attribute All on Identity Object.
* Per CIP Vol 1, Chapter 5 — Identity Object (Class 0x01, Instance 0x01)
*/
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.buildGetControllerPropsRequest = buildGetControllerPropsRequest;
exports.parseControllerProps = parseControllerProps;
const MessageRouter = __importStar(require("../cip/message-router"));
const services_1 = require("../cip/services");
const epath_1 = require("../cip/epath");
/** Identity Object: Class 0x01, Instance 0x01 */
const IDENTITY_PATH = new epath_1.EPathBuilder()
.logical(epath_1.LogicalType.ClassID, 0x01)
.logical(epath_1.LogicalType.InstanceID, 0x01)
.build();
/** Build a Get Attribute All request for the Identity Object. */
function buildGetControllerPropsRequest() {
return MessageRouter.build(services_1.CIPService.GET_ATTRIBUTE_ALL, IDENTITY_PATH, Buffer.alloc(0));
}
/**
* Parse Identity Object response.
* Layout: vendor(2), deviceType(2), productCode(2), major(1), minor(1),
* status(2), serialNumber(4), nameLength(1), name(N)
*/
function parseControllerProps(data) {
let ptr = 0;
ptr += 2; // vendor ID
ptr += 2; // device type
ptr += 2; // product code
const major = data.readUInt8(ptr);
ptr += 1;
const minor = data.readUInt8(ptr);
ptr += 1;
const version = `${major}.${minor}`;
const status = data.readUInt16LE(ptr);
ptr += 2;
const serialNumber = data.readUInt32LE(ptr);
ptr += 4;
const nameLen = data.readUInt8(ptr);
ptr += 1;
const name = data.subarray(ptr, ptr + nameLen).toString('utf8');
// Parse status flags
const statusMasked = status & 0x0ff0;
const faulted = (statusMasked & 0x0f00) !== 0;
const run = (status & 0x00f0) === 0x0060;
const program = (status & 0x00f0) === 0x0070;
return { name, serialNumber, version, status, faulted, run, program };
}
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