socket-estop-test.js

const net = require('net');

const client = net.createConnection({ host: '192.168.7.2', port: 9999 });

const delay = time => new Promise(resolve => setTimeout(resolve, time));

client.on('data', (data) => {
    data = data.toString().trim();
    console.log('data received: ', data);
});

(async function main() {
    client.write('estop/status');
    await delay(2000);
    client.write('estop/trigger/request');
    await delay(5000);
    client.write('estop/release/request');
    await delay(2000);
    client.write('estop/systemreset/request');
})()