38 • Emerson Programmable Touchscreen Thermostat I&O Manual
026-1739 Rev 0
4.4.2. Site Supervisor COM Port Setup
1.
Click the Settings icon (the gear) and select
General System Properties
.
2.
Select the Com Port the device is wired to
(Com Port 1
-
4)
.
3.
Select the available Modbus
(Modbus-01
-
Modbus-04)
.
4.
Set the Modbus connection as follows:
>
Com Port Baud
: 19.2 Kbaud
>
Com Port data size
: 8
>
Com Port Parity
: None
>
Com Port Stop Bits
: 1
5.
Click
Save
to save the changes.
Figure 4-8
- General System Properties
Figure 4-9
- Set Com Port Parameters