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...	...	@@ -10,7 +10,6 @@
10	10
11	11	Connection
12	12
13		-
14	14	[[image:https://wiki.dragino.com/images/thumb/f/f2/RS485_02.png/600px-RS485_02.png||height="743" width="528"]](% style="display:none" %)
15	15
16	16	Connection
...	...	@@ -29,7 +29,6 @@
29	29
30	30	Connection
31	31
32		-
33	33	[[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]]
34	34
35	35	Connection
...	...	@@ -69,9 +69,8 @@
69	69
70	70	Connection2
71	71
	70	+[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="800" width="600"]]
72	72
73		-[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="712" width="534"]]
74		-
75	75	Connection3
76	76
77	77
...	...	@@ -92,9 +92,7 @@
92	92	* 5th and 6th bytes: Number of registers to read
93	93	* 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
94	94
95		-(((
96	96	How to parse the reading of the return command of the parameter：
97		-)))
98	98
99	99	(% class="box infomessage" %)
100	100	(((
...	...	@@ -122,7 +122,7 @@
122	122
123	123	[[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
124	124
125		-AT COMMAND
	120	+**AT COMMAND**
126	126
127	127	(% class="box infomessage" %)
128	128	(((
...	...	@@ -151,53 +151,27 @@
151	151
152	152	[[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
153	153
154		-(((
155	155	AT COMMAND
156		-)))
157	157
158		-(((
159		-
160		-)))
161		-
162		-(((
163	163	**Example**: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
164		-)))
165	165
166		-(((
167	167	RETURN1:01 03 02 00 02 39 85 00 00(return data)
168		-)))
169	169
170		-(((
171	171	AT+DATACUT1:9,1,4+5+6+7 Take the return value 00 02 39 85 as the valid value of reading current data and used to splice payload.
172		-)))
173	173
174		-(((
175	175	CMD2:Read voltage data with MODBUS command. address:0x00 AT+COMMAND2= 01 03 00 00 00 01,1
176		-)))
177	177
178		-(((
179	179	RETURN2:01 03 02 08 DC BE 1D(return data)
180		-)))
181	181
182		-(((
183	183	AT+DATACUT2:7,1,4+5 Take the return value 08 DC as the valid value of reading voltage data and used to splice payload.
184		-)))
185	185
186		-(((
187	187	CMD3:Read total active energy data with MODBUS command. address:0x0031 AT+COMMAND3= 01 03 00 31 00 02,1
188		-)))
189	189
190		-(((
191	191	RETURN3:01 03 04 00 00 00 44 FA 00(return data)
192		-)))
193	193
194		-(((
195	195	AT+DATACUT3:9,1,4+5+6+7 Take the return value 00 00 00 44 as the valid value of reading total active energy data and used to splice payload.
196		-)))
197	197
198		-(((
199	199	Payload:01 00 02 39 85 08 DC 00 00 00 44
200		-)))
201	201
202	202	[[image:https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]]
203	203
...	...	@@ -294,7 +294,6 @@
294	294
295	295	DOWNLINK
296	296
297		-
298	298	[[image:https://wiki.dragino.com/images/thumb/a/a2/DOWNLINK_METER6.png/600px-DOWNLINK_METER6.png||height="365" width="600"]]
299	299
300	300	DOWNLINK
...	...	@@ -302,47 +302,30 @@
302	302
303	303	=== 1.3.4 How to configure and output commands for RS485 to USB ===
304	304
305		-(((
306	306	This step is not necessary, it is just to show how to use a normal RS485 to USB adapter to connect to the meter to check the input and output. This can be used to test the connection and RS485 command of the meter without RS485-LN.
307		-)))
308	308
309		-(((
310	310	First, connect the A+ and A- of the USB to the 485 A and 485 B of the energy meter.
311		-)))
312	312
313		-(((
314	314	Open the serial port debugging, set the send and receive to HEX.
315		-)))
316	316
317		-(((
318	318	Baud rate: 9600
319		-)))
320	320
321		-(((
322	322	check digit: Even
323		-)))
324	324
325		-[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="725" width="544"]]
	283	+[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="800" width="600"]]
326	326
327	327	USB
328	328
	287	+[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]]
329	329
330		-[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="728" width="546"]]
331		-
332	332	USB
333	333
334		-
335		-(((
336	336	The configuration command is consistent with the AT command, input the hexadecimal command directly into the serial port, and the serial port will output the command.
337		-)))
338	338
339		-(((
340		-**Example:**  input：01 03 00 31 00 02 95 c4
341		-)))
	293	+Example:input：01 03 00 31 00 02 95 c4
342	342
343		-(((
344		- output:01 03 04 00 00 00 42 7A 02
345		-)))
	295	+{{{ output:01 03 04 00 00 00 42 7A 02
	296	+}}}
346	346
347	347	[[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]
348	348
...	...	@@ -352,37 +352,21 @@
352	352
353	353	If users need to read the parameters of multiple energy meters, they need to modify the device address, because the default device address of each energy meter is 01.
354	354
355		-(((
356		-(((
357	357	Set the device address according to the parameters in the appendix of the MODBUS communication protocol.
358		-)))
359		-)))
360	360
361	361	[[image:https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]]
362	362
363		-**Example**:These two meters are examples of setting parameters and device addresses.
	310	+Example:These two meters are examples of setting parameters and device addresses.
364	364
365		-[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="737" width="553"]]
	312	+[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="800" width="600"]]
366	366
367		-[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="733" width="550"]]
	314	+[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="800" width="600"]]
368	368
369		-(((
370		-(((
371	371	First of all, since the default device address of the energy meter is 01, the configuration of two energy meters will conflict, so we first connect an energy meter and configure the device address.
372		-)))
373		-)))
374	374
375		-(((
376		-(((
377	377	We can use AT+CFGDEV to set the device address.
378		-)))
379		-)))
380	380
381		-(((
382		-(((
383	383	We modify the device address 01 of the first energy meter to 02.
384		-)))
385		-)))
386	386
387	387	[[image:https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]
388	388