The RS485-to-LoRaWAN data collector is a data collector whose uplink wireless interface adopts the standard LoRaWAN protocol and the downlink interface adopts the RS485 interface. It can transparently transmit the ModBus protocol to the server through the LoRaWAN wireless network to realize the wireless transmission of industrial field control signals. .
The E78-DTU (470LN22) developed by Ebyte is a data collector suitable for industrial environments. Its uplink wireless interface adopts the standard LoRaWAN protocol, supports the file communication frequency band in the CN470 area, and is equipped with one RS485 serial port. Effective communication coverage can also be provided in the field. It has the following characteristics:
(1) Support LoRaWAN 1.0.2/1.0.3 protocol
(2) Two-way transparent transmission from RS485 to LoRaWAN
(3) LoRaWAN CLASS A and CLASS C modes
(4) LoRaWAN OTAA and ABP two network access methods
(5) ModBus polling, supports up to 64 polling commands
(6) Active query function, which can send read commands from the remote server to read RS485 bus data
lorawan node module
The command storage function of the LORAWAN gateway module product is a worthwhile function. rs485 ethernet adapter When the command forwarded by the LoRaWAN gateway is not received, it can also actively poll the devices on the RS485 bus to achieve the purpose of regularly reporting the data of the RS485 bus device. Reduce the workload of the LoRaWAN gateway, reduce the number of issued instructions, reduce the bandwidth used by the network, and avoid network congestion.