The web page you are looking at now is on a web server embedded within an IGC100. This embedded web server, or EWS, allows IGC100 users to get data on their system from anywhere in the world, simply by using a web browser.
The "vacuum system" this EWS demo system is attached to is simply a sealed ion gauge and two pirani gauges exposed to atmospheric pressure. The EWS allows remote monitoring and control of your vacuum system. This demo allows you to try out the web interface to get a feel for the power the EWS can provide.
Once you are passed to the EWS, you instantly get a summary display of all the active gauges in your vacuum system. If your IGC100 is equipped with process control, the current state of all 8 relay channels is also displayed. This display is also shown whenever you click on "Get Readings" from the EWS web page.
In addition to this convenient display, there are several other methods to get data on your process. By selecting "Auto Monitor", you can get a customized web page to refresh every 20 seconds to display the values of the gauges, relays, and TTL levels you are interested in. By selecting "Get Datalog", you can have data dumped into an MS-Excel (TM Microsoft, Inc.) spreadsheet or get the last 10 datapoints displayed on a webpage. This feature lets you get pressure data into a spreadsheet without ever writing a line of code.
The EWS also allows you to control certain IGC100 functions over the web. Naturally, you wouldn't want just anyone controlling your vacuum system, so all control features are password-protected. You can also have your EWS perform IP checking and only allow IPs you trust to access the control features. Of course, you can always disallow control from the front panel of the IGC100 to only allow monitoring of your system.
In this demo, the password ("ewsdemo") is given on the logon screen, and you can use any log in name you wish. Note that since this demo is open to the public and since the password is given at the logon, it is possible that another user may take control from you. If you suddenly find that you are presented with the logon screen, along with warnings that someone else is controlling the instrument, this is most likely what has occurred.
Once you gain control of the demo EWS, you can access the "Change Relays", "E-mail Notices", and "Ion Gauge Power" buttons. Changing relay states allows you to perform process control over the web. With the "Ion Gauge Power" feature, you can turn on that ion gauge you forgot to power up before you left the lab, select a new ion gauge, or even change to a new filament if one has broken.
Note that in this demo, E-mail has been disabled. The demo will still allow you to look at the email setup screen to give you an idea of what this feature is all about. The idea is that an email can be linked to a process control channel. If something has gone wrong in your process, and a fail-safe relay closes, you can set up the EWS to send you an email when this occurs. Also, if you need to be present in the lab only when a certain base pressure is reached, you can let the EWS keep tabs on the vacuum system and send you an email when the system has pumped down.