5.3
Group Net – LM100, LM200 and LC100
Group Net Parameters – establish a wireless communication group that deploys LoRa
MAC technology. Click “Read” to read current parameter, and click” Write” to write
new parameters into system.
GroupOwner ID:
It is only for LoRa Controller
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LC series, and LM is not allows perform
read and write. The Group Owner ID is the Modbus ID address of LM100 or LM200. The
LoRa Controller –LC series recognize LoRa packet received and send to Group Net owner
(LM) will utilize this Group Owner ID (LM’s Modbus ID). With wrong Group Owner ID
setting will cause communication malfunction. As the net grouping theory, the LC
devices with same Modbus ID address will not communicate with wrong LM. Since, each
LC has its own Group Net Owner.
AES On/Off
: Enable, Disable the encryption of Lora transmission. The encryption key of
LM and LC should be same.
AES Key
: the encryption key for LM and LC series. Key length supports 16bytes.
The LM and LC which are in same LoRa MAC transmission group should be applied with
same AES Key for Data encryption.
Response Time Out
: Set the timeout time for each communication between LM and LC.
As the LPWAN LoRa wireless technology, it does not guaranty the reliability of LoRa
Communication. As this resulting, the LM and LC deployed ECHO mechanism to make
sure the successful of communication. During the time
-
out period, LM will re
-
transmit
until out of time. If the Upper layer Modbus RTU Host (HMI, PLC controller) request busy
Diagram 5.3
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1
