Summary

• Page properties (1 modified, 0 added, 0 removed)
• Attachments (0 modified, 2 added, 0 removed)
  • image-20220602171200-8.png
  • image-20220602171200-9.png

Details

Page properties

Content

...	...	@@ -743,7 +743,7 @@
743	743
744	744	Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
745	745
746		-Example screen shot after clear all RS485 commands.
	746	+Example screen shot after clear all RS485 commands.
747	747
748	748
749	749	The uplink screen shot is:
...	...	@@ -757,29 +757,6 @@
757	757
758	758
759	759
760		-==== **Clear RS485 Command** ====
761		-
762		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
763		-
764		-
765		-* **AT Command:**
766		-
767		-(% style="color:#037691" %)**AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
768		-
769		-Example screen shot after clear all RS485 commands.
770		-
771		-
772		-The uplink screen shot is:
773		-
774		-[[image:1654134704555-320.png]]
775		-
776		-
777		-* **Downlink Payload:**
778		-
779		-**0x09 aa bb** same as AT+CMDEAR=aa,bb
780		-
781		-
782		-
783	783	==== **Set Serial Communication Parameters** ====
784	784
785	785	Set the Rs485 serial communication parameters:
...	...	@@ -822,22 +822,45 @@
822	822	A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
823	823
824	824
	802	+== 3.6 Listening mode for RS485 network ==
825	825
826		-==== **Control output power duration** ====
	804	+This feature support since firmware v1.4
827	827
828		-User can set the output power duration before each sampling.
	806	+RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
829	829
830		-* **AT Command:**
	808	+[[image:image-20220602171200-8.png||height="567" width="1007"]]
831	831
832		-**Example:**
	810	+To enable the listening mode, use can run the command AT+RXMODE.
833	833
834		-**AT+3V3T=1000**  ~/~/ 3V3 output power will open 1s before each sampling.
835	835
836		-**AT+5VT=1000**  ~/~/ +5V output power will open 1s before each sampling.
	813	+(% border="1" style="background-color:#ffffcc; width:500px" %)
	814	+|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
	815	+|(% style="width:161px" %)AT+RXMODE=1,10 |(% style="width:337px" %)Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
	816	+|(% style="width:161px" %)AT+RXMODE=2,500|(% style="width:337px" %)Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
	817	+|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
	818	+|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
837	837
	820	+**Downlink Command:**
838	838
839		-* **LoRaWAN Downlink Command:**
	822	+**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
840	840
841		-**07 01 aa bb**  Same as AT+5VT=(aa bb)
842	842
843		-**07 02 aa bb**  Same as AT+3V3T=(aa bb)
	825	+**Example**:
	826	+
	827	+The RS485-LN is set to AT+RXMODE=2,1000
	828	+
	829	+There is a two Modbus commands in the RS485 network as below:
	830	+
	831	+The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	832	+
	833	+And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	834	+
	835	+RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b  (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	836	+
	837	+[[image:image-20220602171200-9.png]]
	838	+
	839	+
	840	+Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while.
	841	+
	842	+
	843	+==== ====

image-20220602171200-8.png

Author

...	...	@@ -1,0 +1,1 @@
	1	+XWiki.Xiaoling

Size

...	...	@@ -1,0 +1,1 @@
	1	+276.1 KB

Content

image-20220602171200-9.png

Author

...	...	@@ -1,0 +1,1 @@
	1	+XWiki.Xiaoling

Size

...	...	@@ -1,0 +1,1 @@
	1	+10.0 KB

Content