Application; Long-Distance Monitor System - Gree ME20-24/D1(T) Owner's Manual

5.4.3 The 2nd Lever of Functional DIP Switch—RS-485 Bus Matched
Resistance Setting
The 2nd lever of the functional DIP switch is used for setting matched
resistance for controller in RS-485 bus (It is referred to as the KWH meter
communication bus in the network).
If the controller needs to be the joint with matched resistance in RS-485 bus,
the 2nd lever should be set with matched resistance.
5.4.4 The 4st Lever of Functional DIP Switch—Controller Reset
Selection Bits
When there's an error in configuring Controller IP address, subnet mask,
default Controller, Controller name or Controller ID from the webpage, and the
webpage can't be accessed, user can reset the Controller to restore factory default
information. Dial the fourth digit of the DIP switch code to "1", hold SHT/DWN button
for 5s to restore the default information of factory setting of the Controller.

6 Application

6.1 Long-distance Monitor System

The controller(ME20-24/D1(T)) is equipped with the monitoring function for
multi VRF. It realizes the monitor of Intelligent Remote Eudemon System on CAN
bus Gree multi VRF through controller(ME20-24/D1(T)).
7
Intelligent Controller