Indicator Description

PWR power indicator (Green)	Meaning
On	Normal system power supply
Off	Abnormal system power supply
SYS system status light (Green)	Meaning
Off	The system is normal
On	Failed to allocate module address
Flash (5Hz)	Module parameter configuration failed
Flashing (1Hz)	Module data interaction failed
Slow flash (0.33Hz)	Module not recognized
SF System fault indicator (red)	Meaning
On	System fault, topology error
Flash	illegal MAC address
Off	Normal operation
BF bus fault indicator (red)	Meaning
On	RJ45 not connected
Flashing	Device offline
Off	Normal operation
BUS backplane bus indicator (Yellow)	Meaning
Flash after power-on	Scan IO terminal (flashing times = number of modules)
Slow flashing during operation	Normal operation (flashing frequency is related to the number of modules)

Last modified: 2025-06-30