RMC Watlow ez-zone input/output

Hello, 

I'm trying to program the labview to control RMC Watlow ez-zone, through the USB/RS-485 serial connector.

in its example (driver downloaded from  http://www.watlow.com/products/controllers/software/ez-zone-labview-driver-software ) it can read 2 input analog and 2 alarms values. How can i read 4 thermocouples values from the four analog inputs?  How can i have access to the input/outputs?

Thanks