When 3212 digital output to active a relay

plz help me about digital output of wsn 3212 .when temperature of thermocouple is abov then 25 degree i want to active a relay from digital output of node..plz tell me about this program...

sir suppose i want to measure temperature from thermocouple from wsn 3212node.nd compare it with 40.when temperature is above than 40 degree.it give an digital out put from wsn3212 to active an relay to run a fan..here is programming example is attached.assume here numeric value compare with incomming value from wsn 3212 thermocouple temperature.when temperature above than 40 then led on...
Attachments:
labview.png ‏192 KB
labview.png ‏192 KB

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