ABB ControlMaster CM10 - Installation; 4.1 Siting and Environmental Requirements

ControlMaster CM10, CM15, CM30 and CM50
Universal process controllers and indicators,
1
/8,
1
/4 and
1
/2 DIN 3 Communication Overview
6 IM/CM/C–EN
3.1.2 RS 485 MODBUS
Using RS 485 MODBUS, values and status can be communicated to and from the controller in real-time via an RS 485
connection.
Fig. 3.1 Webserver
Fig. 3.2 ControlMasters connected to a ScreenMaster