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Last modified by Xiaoling on 2025/04/23 15:57
From version 29.44
edited by Xiaoling
on 2022/06/02 09:15
Change comment: There is no comment for this version
To version 30.5
edited by Xiaoling
on 2022/06/02 09:26
Change comment: There is no comment for this version

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751 751  
752 752  === 3.5.2 Sensor related commands: ===
753 753  
754 -(% class="wikigeneratedid" %)
755 755  ==== ====
756 756  
757 757  ==== **Choose Device Type (RS485 or TTL)** ====
... ... @@ -760,9 +760,15 @@
760 760  
761 761  * **AT Command**
762 762  
762 +(% class="box infomessage" %)
763 +(((
763 763  **AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
765 +)))
764 764  
767 +(% class="box infomessage" %)
768 +(((
765 765  **AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
770 +)))
766 766  
767 767  
768 768  * **Downlink Payload**
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777 777  
778 778  * **AT Command**
779 779  
780 -AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
785 +(% class="box infomessage" %)
786 +(((
787 +**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
788 +)))
781 781  
782 782  m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
783 783  
... ... @@ -793,20 +793,19 @@
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.
800 800  
801 -* The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
808 +* The command to active alarm is: 0A 05 00 04 00 01 **4C B0**. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
802 802  
803 -* The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
810 +* The command to deactivate alarm is: 0A 05 00 04 00 00 **8D 70**. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
804 804  
805 805  So if user want to use downlink command to control to RS485 Alarm, he can use:
806 806  
807 -**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
814 +(% style="color:#037691" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
808 808  
809 -**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
816 +(% style="color:#037691" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
810 810  
811 811  A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
812 812  
... ... @@ -815,32 +815,35 @@
815 815  
816 816  Check TTL Sensor return:
817 817  
818 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
825 +[[image:1654132684752-193.png]]
819 819  
820 820  
821 821  
829 +==== **Set Payload version** ====
822 822  
823 -==== Set Payload version ====
824 -
825 825  This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
826 826  
827 -* AT Command:
833 +* **AT Command:**
828 828  
829 -AT+PAYVER: Set PAYVER field = 1
835 +(% class="box infomessage" %)
836 +(((
837 +**AT+PAYVER: Set PAYVER field = 1**
838 +)))
830 830  
831 831  
832 -* Downlink Payload:
841 +* **Downlink Payload:**
833 833  
834 -0xAE 01   à Set PAYVER field =  0x01
843 +**0xAE 01**  ~-~-> Set PAYVER field =  0x01
835 835  
836 -0xAE 0F   à Set PAYVER field =  0x0F
845 +**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
837 837  
838 838  
839 -==== Set RS485 Sampling Commands ====
840 840  
849 +==== **Set RS485 Sampling Commands** ====
850 +
841 841  AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
842 842  
843 -These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>path:#polling_485]].
853 +These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
844 844  
845 845  
846 846  * AT Command:
1654132684752-193.png
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