System - LG MASTER-K 120S Series User Manual

Chapter 2 System Configuration
2.1.2 Cnet I/F system
Cnet I/F System is used for communication between the main unit and external devices using RS-232C/RS-422 Interface.
The MK120S has a built-in RS-232C port, RS-485 port and has also G7L-CUEB for RS-232C, G7L-CUEC for RS-422. It is
possible to construct communication systems on demand.
1) 1:1 Communications system
(1) 1:1 ratio of an external device (computer) to main unit using a built-in port
(2) 1:1 ratio of an external device (monitoring unit) to main unit using a built-in RS-485 port
Monitoring Device
RS-232C
RS-485
MASTER-K120S
Monitoring Device
RS-485
MASTER-K120S
RS-232C
2-2
MASTER-K120S