How to send Serial data received to a text window?

[pturmel]

Start here:

How to listen serial data without interruption

I am using serial module to get data from a rs232 device, and the device is could only send its data to serial port ,but could not accept any request. the problem is I don’t know when the data will be send,so I need to listen the serial constantly to avoid lose any data. but unfortunately, there are no any event trigger on serial component in ignition . dose anyone meet the same problem and could give some help? (I’m using ignition 7.7.5) [image] I put scripts on a timer , but datas always los…

The key is that a script that is going to block reading from the serial port (even briefly) must be run in a background thread. Data to deliver to your UI must use system.util.invokeLater() to delegate snippets of code back on the UI thread.