5.2
Serial Port Configuration – LM100, LC100, LR100
The LM100/ LC100/ LR100 support one RS
-
485 serial interface with different Modbus
mode. Following table shows the Modbus mode information for each model.
Channel #
LM100
LC144
LR140
RS
-
485A
RTU Slave mode
RTU Host mode
RTU Host mode
RS
-
485B
RTU Slave mode
RTU Host mode
RTU Host mode
The Serial RS485 Configuration Page is for Serial communication parameter setting.
Click “Read “to download device’s internal setting, and “Write” to set new parameters
into device. The LM/LC should give independent Device Modbus Address. The LM’s
Modbus address also is the Group ID for LM/LC LoRa MAC Net Grouping.
Baud Rate
: 1200, 2400, 4800, 9600 bps
Data bit:
8 bit
Parity Check:
No, Even, Odd
Stop bit:
1, 2bit
Device Modbus Address
: the Modbus address ID range supports from 1 to 250. The
Modbus Address should not same as other device which belong same LoRa MAC
communication group, it includes HMI, PLC on RS485 main communication bus, and
other RTU devices connected under LC100.
Table 5.2
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1
Diagram 5.2
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1
