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refactor(ocp): plc reading changes to disconnect and reconnect

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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.
This commit is contained in:
Blake Matthes
2025-12-30 10:55:28 -06:00
parent 6cbffa4ac5
commit e8a2ef8b85
1 changed files with 76 additions and 70 deletions
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146
lstV2/server/services/ocp/controller/specialProcesses/dyco/plcConnection.ts
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@@ -20,84 +20,90 @@ const palletSend = new Tag("Zone_6.Ready_to_Send");
const strapperError = new Tag("Zone_3.Strapper_Faulted"); const strapperError = new Tag("Zone_3.Strapper_Faulted");
export const dycoConnect = async () => { export const dycoConnect = async () => {
// if we crash or start over reset the timers so we dont get duplicates // if we crash or start over reset the timers so we dont get duplicates
clearInterval(plcCycle); clearInterval(plcCycle);
if (isDycoRunning) if (isDycoRunning)
return { success: false, message: "Dyco is already connected." }; return { success: false, message: "Dyco is already connected." };
// Remove all listeners before adding a new one to prevent memory leaks // Remove all listeners before adding a new one to prevent memory leaks
PLC.removeAllListeners("error"); PLC.removeAllListeners("error");
try { try {
await PLC.connect(plcAddress, 0).then(async () => { await PLC.connect(plcAddress, 0).then(async () => {
createLog("info", "dyco", "ocp", `We are connected to the dyco.`); createLog("info", "dyco", "ocp", `We are connected to the dyco.`);
isDycoRunning = true; isDycoRunning = true;
plcCycle = setInterval(async () => { plcCycle = setInterval(async () => {
if (isReading) { if (isReading) {
createLog( createLog(
"debug", "debug",
"dyco", "dyco",
"ocp", "ocp",
"Skipping cycle: previous read still in progress." "Skipping cycle: previous read still in progress.",
); );
return; return;
} }
isReading = true; // Set flag isReading = true; // Set flag
try { try {
await PLC.readTag(labelerTag); await PLC.readTag(labelerTag);
await PLC.readTag(palletSend); await PLC.readTag(palletSend);
await PLC.readTag(strapperError); await PLC.readTag(strapperError);
// strapper check // strapper check
strapperFaults(strapperError); strapperFaults(strapperError);
// send the labeler tag data over // send the labeler tag data over
labelerTagRead(labelerTag); labelerTagRead(labelerTag);
// send the end of line check over. // send the end of line check over.
palletSendTag(palletSend); palletSendTag(palletSend);
} catch (error: any) { } catch (error: any) {
createLog( createLog(
"error", "error",
"dyco", "dyco",
"ocp", "ocp",
`Error reading PLC tag: ${error.message}` `Error reading PLC tag: ${error.message}`,
); );
} finally { // if we error out we want to disconnect and reconnect
isReading = false; // Reset flag closeDyco();
} setTimeout(() => {
}, plcInterval); createLog("info", "dyco", "ocp", `Reconnecting to the dyco`);
}); dycoConnect();
} catch (error) { }, 2 * 1000);
createLog( } finally {
"error", isReading = false; // Reset flag
"dyco", }
"ocp", }, plcInterval);
`There was an error in the dyco: ${error}` });
); } catch (error) {
await PLC.disconnect(); createLog(
isDycoRunning = false; "error",
} "dyco",
"ocp",
`There was an error in the dyco: ${error}`,
);
await PLC.disconnect();
isDycoRunning = false;
}
}; };
export const closeDyco = async () => { export const closeDyco = async () => {
if (!isDycoRunning) if (!isDycoRunning)
return { success: false, message: "Dyco is not connected." }; return { success: false, message: "Dyco is not connected." };
console.log(`Closing the connection`); console.log(`Closing the connection`);
try { try {
await PLC.disconnect(); await PLC.disconnect();
isDycoRunning = false; isDycoRunning = false;
return { return {
success: true, success: true,
message: "Dyco Connection is now closed.", message: "Dyco Connection is now closed.",
}; };
} catch (error) { } catch (error) {
console.log(error); console.log(error);
return { return {
success: false, success: false,
message: "There was an error closing the dyco connection.", message: "There was an error closing the dyco connection.",
}; };
} }
}; };