USR-LG220 User Manual
Technical Support:
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Jinan USR IOT Technology Limited
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9
wake up all LoRa node modules which connect to LG220 network according to Web Server configuration, then
LG220 will transmit data to LoRa node modules; after transmitting data, LG220 will transmit next data immediately
if LG220 receives response data from LoRa node modules, otherwise LG220 will transmit next data after receiving
time overtime.
After configuring LG220 into polling waking mode and configuring related parameters, LG220 will enter
listing status. When LoRa node module access LG220 network, LG220 will respond accessing network
information and save node information. When accessing network node is greater than 0 or accessing
network node has existed in database, LG220 will transmit waking data to wake up LoRa node module
periodically according to waking period, polling period and polling timeout time.
After receiving data from LG220, LoRa node module will take corresponding action and return related data to
achieve one time data transmission, then node will enter sleep mode and wait LG220 transmit next waking
data in next period. In this mode, user can configure at most 16 waking data.
User can configure LG220 into this mode by Web Server as follows(Three communication channels all need to
configured into this mode and same rate):
Figure 9 Polling waking mode general settings
Gateway Receive timeout: Timeout time to wait node return data after Gateway transmitting polling data and
support at most 65535ms.
Polling interval: Interval from finish polling all nodes to start next polling and support at most 10 days. Unit:
ms.
