ICP DAS USA I-7540D-WF User Manual

ICP DAS USA I-7540D-WF User Manual Manual pdf 16 page image

I-7540D-WF CAN to Wi-Fi Converter User’s Manual (Ver. 2.0, Jan/2012) ------------- 162.7 LED IndicationThere are five LEDs to indicate the various states of the I-7540D-WF.The following is the illustration of these five LEDs.(1) PWR LED :It is used to help users to check whether the I-7540D-WF is standby. Ifthe module is working in “firmware operation” mode, the PWR LED isalways turned on.It is also used for demonstrating an error that has occurred. The PWRLED is normally turned on when the module works in a good condition. Fordifferent error conditions represented by the indicator LED, please refer toTable 2-2.(2) Wi-Fi LED :This LED can indicate the Wi-Fi reception or transmission state of theI-7540D-WF. When I-7540D-WF is in Wi-Fi sending or receiving state, theLED will blink.(3) CAN LED :This LED can indicate the CAN data reception or transmission state ofthe I-7540D-WF. When I-7540D-WF is in CAN data sending or receivingstate, the LED will blink.(4) WLAN LED :This LED can indicate whether the I-7540D-WF’s WLAN connection isestablished. When WLAN connection is established, the LED will benormally on; otherwise, it will be flashing or off.(5) CNT. LED :This LED can indicate whether the I-7540D-WF’s TCP connection isestablished. When TCP connection is established, the LED will benormally on; otherwise, it will be flashing.