3. Follow steps listed under Connecting to a CM240DM with a USB to RS 485 adapter.
The settings are changed in the Holding Registers tab. Except for the Modbus Address, the
default values are typical for most Modbus systems and therefore rarely need to be
changed.
The values stored are shown in the Input Registers tab.
CS240 and CS240DM PT-1000 Class A, Back-of-Module Temperature
Sensors 20