Skip to Content
Last modified by Kilight Cao on 2025/07/03 15:34
From version 54.1
edited by Kilight Cao
on 2025/07/03 15:03
Change comment: Uploaded new attachment "image-20221006170630-1.png", version {1}
To version 54.2
edited by Kilight Cao
on 2025/07/03 15:04
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -2704,16 +2704,11 @@
2704 2704  You can run the AT command **AT+DEBUG** to view the counting event in the serial output. If the firmware is too old and doesn’t support AT+DEBUG, update to the latest firmware first.
2705 2705  
2706 2706  
2707 -== 6.6 Can I use point-to-point communication with LT-22222-L? ==
2708 -
2709 -
2710 -Yes, you can. Please refer to the [[Point-to-Point Communication of LT-22222-L>>https://wiki.dragino.com/xwiki/bin/view/Main/%20Point%20to%20Point%20Communication%20of%20LT-22222-L/]] page. The firmware that supports point-to-point communication can be found [[here>>https://github.com/dragino/LT-22222-L/releases]].
2711 -
2712 2712  
2713 2713  )))
2714 2714  
2715 2715  (((
2716 -== 6.7 Why does the relay output default to an open relay after the LT-22222-L is powered off? ==
2711 +== 6.6 Why does the relay output default to an open relay after the LT-22222-LA is powered off? ==
2717 2717  
2718 2718  
2719 2719  * If the device is not properly shut down and is directly powered off.
... ... @@ -2721,23 +2721,19 @@
2721 2721  * In modes 2 to 5, the DO/RO status and pulse count are saved to flash memory.
2722 2722  * After a restart, the status before the power failure will be read from Flash.
2723 2723  
2724 -== 6.8 Can I set up LT-22222-L as an NC (Normally Closed) relay? ==
2719 +== 6.7 Can I set up LT-22222-LA as an NC (Normally Closed) relay? ==
2725 2725  
2726 2726  
2727 -The LT-22222-L's built-in relay is Normally Open (NO). You can use an external relay to achieve a Normally Closed (NC) configuration. The circuit diagram is shown below:
2722 +The LT-22222-LA's built-in relay is Normally Open (NO). You can use an external relay to achieve a Normally Closed (NC) configuration. The circuit diagram is shown below:
2728 2728  
2724 +[[image:image-20221006170630-1.png]]
2729 2729  
2730 2730  
2731 2731  
2732 -== 6.9 Can the LT-22222-L save the RO state? ==
2733 2733  
2729 +== 6.9 Why does the LT-22222-LA always report 15.585V when measuring the AVI? ==
2734 2734  
2735 -To enable this feature, the firmware version must be 1.6.0 or higher.
2736 2736  
2737 -
2738 -== 6.10 Why does the LT-22222-L always report 15.585V when measuring the AVI? ==
2739 -
2740 -
2741 2741  It is likely that the GND is not connected during the measurement, or that the wire connected to the GND is loose.
2742 2742  
2743 2743