User's Manual

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RS485 to LoRaWAN Converter User Manual 24 / 30
RS485 command timeout
Some Modbus device has slow action to send replies. This command is used to configure the
RS485-LN to use longer time to wait for their action.
Default value: 0, range: 0 ~ 65 seconds
➢ AT Command:
AT+CMDDLaa=hex(bb cc)*1000
Example:
AT+CMDDL1=1000 to send the open time to 1000ms
➢ Downlink Payload:
0x AA aa bb cc
Same as: AT+CMDDLaa=hex(bb cc)*1000
Example:
0xAA 01 00 01 → Same as AT+CMDDL1=1000 ms
Uplink payload mode
Define to use one uplink or multiple uplinks for the sampling.
The use of this command please see: Compose Uplink payload
➢ AT Command:
AT+DATAUP=0
AT+DATAUP=1
➢ Downlink Payload:
0xAD 00 → Same as AT+DATAUP=0
0xAD 01 → Same as AT+DATAUP=1
Manually trigger an Uplink
Ask device to send an uplink immediately.
➢ AT Command:
No AT Command for this, user can press the ACT button for 1 second for the same.
➢ Downlink Payload:
0x08 FF, RS485-LN will immediately send an uplink.
Clear RS485 Command
The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below
command to clear them.
➢ AT Command: