HGM6100N-RM REMOTE MONITORING MODULE USER MANUAL
HGM6100N-RM Remote Monitoring Module 2019-08-06 Version 1.0 Page 14 of 14
8 TROUBLESHOOTING
Table 5 Troubleshooting
Symptom
Measures
No response with power on
Check starter battery;
Check controller wire connections;
Check DC fuse.
Abnormal communication of controller
Check whether RS485 A and B are connected reversely;
Adding 120
Ω resistance is recommended between
RS485 A and B.
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