I just replaced an RC80 with the Omnistat 2 and it will not commuicate with the touchscreen panel.  The temperature just shows "0". I have addressed it in sequence with my other omnistat and set the baud rate at 100 w/ no luck.  The only time it registers with the touchscreen is when I set the Omnistat 2 in the Zigbee mode.  The Omnistat 2 will just sit there trying to link but does nothing.  But while in the zigbee mode I can go down to the touchsreen and actually see the temperature reading.  Once I get out of the Zigbee mode, the temperature reading at the touch panel shows "0".