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The modules of H04DT and H32DT both have three indicators, POW indicator, AI indicator and LINK indicator, what functions do they have?

2016-08-17 14:10:38 haiwell

POW indicator: Power indicator, green. Always on---Normal power ; Not on---Abnormal power.

AI indicator: Analog input indicator, red. Always on---sensor is connected correctly, Not on----Sensor is not connected or connection is not correct.

LINK light: Communication indicator.

LINK indicator status		Indication	Reference processing method
LINK indicator status		information classification	Reference processing method
	Always off	Host PLC can not identify the module and no communication
Green	Always on		Normal
	Always on	Host PLC has indentified the module and no communication
	Fast jitter	Communication of serial port and parallel port
Red	On-Off flashing	No parallel / serial port communication	Incomplete firmware
Red	Dark alternates with jitter	parallel / serial port communication	Incomplete firmware
Note: Jitter: The indicator is on for 30ms, off for 30ms ; Flash: The indicator is on for 0.5s, off for 0.5s ; Alternate: The indicator is off for 0.5s , jitter for 0.5s
AI indicator status		Indication	Reference processing method
AI indicator status		information classification	Reference processing method
Red	Always off	No sensor	Normal
	Flashing	Sensor access exception	Check sensor
	Always on	Sensor access normally	Normal