Changes for page RS485-BL – Waterproof RS485 to LoRaWAN Converter
Last modified by Xiaoling on 2025/04/23 15:57
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... ... @@ -758,7 +758,7 @@ 758 758 759 759 RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect. 760 760 761 -* **AT Command**761 +* AT Command 762 762 763 763 **AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins. 764 764 ... ... @@ -765,17 +765,17 @@ 765 765 **AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins. 766 766 767 767 768 -* **Downlink Payload**768 +* Downlink Payload 769 769 770 -**0A aa** ~-~->same as AT+MOD=aa770 +**0A aa** à same as AT+MOD=aa 771 771 772 772 773 773 774 -==== **RS485 Debug Command (AT+CFGDEV)**====774 +==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ==== 775 775 776 776 This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling. 777 777 778 -* **AT Command**778 +* AT Command 779 779 780 780 AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m 781 781 ... ... @@ -782,8 +782,9 @@ 782 782 m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command. 783 783 784 784 785 -* **Downlink Payload** 786 786 786 +* Downlink Payload 787 + 787 787 Format: A8 MM NN XX XX XX XX YY 788 788 789 789 Where: ... ... @@ -793,7 +793,6 @@ 793 793 * XX XX XX XX: RS485 command total NN bytes 794 794 * YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command 795 795 796 - 797 797 **Example 1:** 798 798 799 799 To connect a Modbus Alarm with below commands.