Node.js EPIPE error

I have an application composed by a node.js server plus other files and an HTML file. The HTML file is my client, it has to communicate with the node.js server. The node.js server use the objects created with the other node.js files to communicate with a PLC using an ethernet cable. So I've created a socket.io connection between the server and the client and a tcp connection between the server and the PLC.

Now the error: if I start the server and the client with all cables connected I've a correct answer from the PLC, if I disconnect the cable while running I obtain the following error:

events.js:71
        throw arguments[1]; // Unhandled 'error' event
                       ^
Error: write EPIPE
    at errnoException (net.js:770:11)
    at Socket._write (net.js:552:19)
    at Socket.write (net.js:511:15)
    at Timer.<anonymous> (C:\Users\Massimo\workspace\Scada\plc_driver\fw_driver.
js:289:20)
    at Timer.exports.setInterval.timer.ontimeout (timers.js:234:14)

I've already try to manage an error in the server with the code

communication_socket.on('error', function () {
    console.log('Error!');
});

I'm running node 0.8.18 and all packages are updated (I've made a npm update -g )

Edit The result of the code

process.on('uncaughtException', function(err) {
    console.log(util.inspect(err));
});

is:

{ [Error: write EPIPE] code: 'EPIPE', errno: 'EPIPE', syscall: 'write' }

Any suggestion?