Reading a Temperature Sensor?

I am looking for an efficient way to read my temperature sensors. What I currently have is outlined below:

Code:

if GetBoolIBSystemIO("Measurement App Valid Value", 254, 21, 1) then
begin
   TMainCollector := GetIntIBSystemIO("Measurement App Integer Value", 254, 21, 1); { Get Temperature's Integer value }
   if HasChanged (TMainCollector) then  { If temperature has changed from previous then update Group }
   begin
      SetLightingLevel("Group 242 - TMainCol", TMainCollector, "0s");
   end;
end;

Can the above code be improved upon?

Ingo

 

I know this is old but it fits my question

Is the temperature value an integer or a real?

I am trying to read (as a real) a value using code similar to the above and I keep getting what I think is 0.

The valid value is returning false as well.

The temp sensor is on the network and I can read the value in toolkit.

 

Thanks Nick

The sensors are all 5031RDTSL.

They were in the Measurement Manager Application with the ID matching the address. The channel number is 0 - I cant find any reference to which channel number should be used for these temp sensors.

So unless the channel is the problem I can't see what would be wrong otherwise.

Is there a simple way to see if it is broadcasting the temperature?

Found it in the logs in toolkit - all are broadcasting temperatures on channel 1.