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CMM365-2G Cloud Monitoring Communication Module User Manual
CMM365-2G Cloud Monitoring Communication Module 2016-11-14 Version 1.0 Page 18 of 19
9 FAULT FINDING
Symptoms
Possible Solutions
Controller no response with
power.
Check power voltage;
Check controller connection wirings.
GPRS Indicator Not Light
Check SIM card is inserted or not;
Check GPRS antenna is connected or not.
RS485
Communication
Abnormal
Check connections;
Check RS485 port is enabled or not;
Check settings of genset ID and baud rate are correct or not.
Check RS485’s connections of A and B is reverse connect or not.
LINK
Communication
Abnormal
Check connections;
Check LINK port is enabled or not;
Check settings of genset ID and baud rate are correct or not.