Dragino CPL01, Руководство пользователя

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User Manual for LoRaWAN End Nodes - CPL01 LoRaWAN Outdoor Pulse/Contact Sensor
2.3.3 Real-Time Open/Close Status, Uplink FPORT=2
CPL01 will send this uplink after Device Status once join the LoRaWAN network successfully. And CPL01 will:
periodically send this uplink every 2 hours, this interval can be changed .
Uplink Payload totals 11 bytes.
Real-Time Open/Close Status, FPORT=2
Size (bytes) 1 3 3 4
Value Status & Alarm Total pulse The last open duration
(unit: min)
Unix TimeStamp
• Calculate Flag
The calculate flag is a user define field, IoT server can use this filed to handle different meter with different pulse
factor. For example, if there are 100 water meters, meter 1 ~50 are 1 liter/pulse and meter 51 ~ 100 has 1.5 liter/
pulse.
User can set calculate flag to 1 for meter 1~50 and 2 for meter 51 ~ 100, So IoT Server can use this field for
calculation.
Default value: 0.
Range (6 bits): (b)000000 ~ (b) 111111
Refer:
Set Calculate Flag
• Alarm
See Alarm Base on Timeout
• Contact Status
0: Open
1: Close
• Total pulse
Total pulse/counting base on dry contact trigger event
Range (3 Bytes) : 0x000000 ~ 0xFFFFFF . Max: 16777215
• The last open duration
Dry Contact last open duration.
Page 15 / 32 - last modified by Xiaoling on 2022/07/01 18:01