Files
lst/lstV2/server/services/ocp/controller/specialProcesses/dyco/plcConnection.ts
Blake Matthes e8a2ef8b85 refactor(ocp): plc reading changes to disconnect and reconnect
it was found that there were some errors that spammed the log and caused the server to actually stop
responding and crash weirdly so added a disconnect and reconnect back. so we can figure out whats
going on.
2025-12-30 10:55:28 -06:00

110 lines
2.8 KiB
TypeScript

import { Controller, Tag } from "st-ethernet-ip";
import { createLog } from "../../../../logger/logger.js";
import { labelerTagRead } from "./plcTags/labelerTag.js";
import { palletSendTag } from "./plcTags/palletSendTag.js";
import { strapperFaults } from "./plcTags/strapperFault.js";
let PLC = new Controller();
let isDycoRunning = false;
// PLC address
let plcAddress = "10.44.5.4";
let isReading = false;
// Initialize the interval variable outside the function
let plcCycle: any;
let plcInterval = 500;
// Create Tag Instances
const labelerTag: any = new Tag("labeler.line_info");
const palletSend = new Tag("Zone_6.Ready_to_Send");
const strapperError = new Tag("Zone_3.Strapper_Faulted");
export const dycoConnect = async () => {
// if we crash or start over reset the timers so we dont get duplicates
clearInterval(plcCycle);
if (isDycoRunning)
return { success: false, message: "Dyco is already connected." };
// Remove all listeners before adding a new one to prevent memory leaks
PLC.removeAllListeners("error");
try {
await PLC.connect(plcAddress, 0).then(async () => {
createLog("info", "dyco", "ocp", `We are connected to the dyco.`);
isDycoRunning = true;
plcCycle = setInterval(async () => {
if (isReading) {
createLog(
"debug",
"dyco",
"ocp",
"Skipping cycle: previous read still in progress.",
);
return;
}
isReading = true; // Set flag
try {
await PLC.readTag(labelerTag);
await PLC.readTag(palletSend);
await PLC.readTag(strapperError);
// strapper check
strapperFaults(strapperError);
// send the labeler tag data over
labelerTagRead(labelerTag);
// send the end of line check over.
palletSendTag(palletSend);
} catch (error: any) {
createLog(
"error",
"dyco",
"ocp",
`Error reading PLC tag: ${error.message}`,
);
// if we error out we want to disconnect and reconnect
closeDyco();
setTimeout(() => {
createLog("info", "dyco", "ocp", `Reconnecting to the dyco`);
dycoConnect();
}, 2 * 1000);
} finally {
isReading = false; // Reset flag
}
}, plcInterval);
});
} catch (error) {
createLog(
"error",
"dyco",
"ocp",
`There was an error in the dyco: ${error}`,
);
await PLC.disconnect();
isDycoRunning = false;
}
};
export const closeDyco = async () => {
if (!isDycoRunning)
return { success: false, message: "Dyco is not connected." };
console.log(`Closing the connection`);
try {
await PLC.disconnect();
isDycoRunning = false;
return {
success: true,
message: "Dyco Connection is now closed.",
};
} catch (error) {
console.log(error);
return {
success: false,
message: "There was an error closing the dyco connection.",
};
}
};