Logging of Remote Temperatur​e and Humidity data

Question

I am starting a project to gather data for humidity and temperature in
several labs in our building. The sensors will be networked and one
central computer needs to grab the data from them. I'll need to log and
store data 24/7 and create alarms and send pages when readings go out
of spec. I was looking for some general help and ideas form anyone.
Canned VI's, or any information would be very appreciated.
[email protected]

Answer 1

Hello,
   My application is also Data logging 24X7, I am using Lakeshore 218 temperature monitor and taking data to PC by RS232 interface. I don't have problem to plot data on chart. But in my application i may have to look some time historical data.It is little bit SCADA type application but only data display. I tried to find some example but i couldn't understand , how to implement that. How it is possible to write/read same file at a time. My data logging is continous 24X7 and for example i want to see trend of temperature 1Hour back for 30 minute. How it is possible. because when i look at historical data same time datalogging is running.
Is there any example available for such application? or can you guide me how i can do this?
--Vishnu