I have a tstat10 (rtu#21) and a t3bb (rtu#20) that do not appear to be able to communicate via modbus. I wrote a small program to read the firmware revision of the t3bb as a test.
10 VAR8 = 20.20.VAR5
20 VAR9 = 0.20.REG5
line 10 was typed in as 20.20.REG5 but adjusted by the compiler
Here are screen shots of the settings of both units:
I also noticed that the panel number does not appear to be being received by T3000 when hovering over the unit in the building view.
