Summary

• Page properties (1 modified, 0 added, 0 removed)

Details

Page properties

Content

...	...	@@ -67,9 +67,8 @@
67	67
68	68	Connection2
69	69
	70	+[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="800" width="600"]]
70	70
71		-[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="763" width="573"]]
72		-
73	73	Connection3
74	74
75	75
...	...	@@ -90,9 +90,7 @@
90	90	* 5th and 6th bytes: Number of registers to read
91	91	* 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
92	92
93		-(((
94	94	How to parse the reading of the return command of the parameter：
95		-)))
96	96
97	97	(% class="box infomessage" %)
98	98	(((
...	...	@@ -120,7 +120,7 @@
120	120
121	121	[[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
122	122
123		-AT COMMAND
	120	+**AT COMMAND**
124	124
125	125	(% class="box infomessage" %)
126	126	(((
...	...	@@ -149,53 +149,27 @@
149	149
150	150	[[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
151	151
152		-(((
153	153	AT COMMAND
154		-)))
155	155
156		-(((
157		-
158		-)))
159		-
160		-(((
161	161	**Example**: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
162		-)))
163	163
164		-(((
165	165	RETURN1:01 03 02 00 02 39 85 00 00(return data)
166		-)))
167	167
168		-(((
169	169	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.
170		-)))
171	171
172		-(((
173	173	CMD2:Read voltage data with MODBUS command. address:0x00 AT+COMMAND2= 01 03 00 00 00 01,1
174		-)))
175	175
176		-(((
177	177	RETURN2:01 03 02 08 DC BE 1D(return data)
178		-)))
179	179
180		-(((
181	181	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.
182		-)))
183	183
184		-(((
185	185	CMD3:Read total active energy data with MODBUS command. address:0x0031 AT+COMMAND3= 01 03 00 31 00 02,1
186		-)))
187	187
188		-(((
189	189	RETURN3:01 03 04 00 00 00 44 FA 00(return data)
190		-)))
191	191
192		-(((
193	193	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.
194		-)))
195	195
196		-(((
197	197	Payload:01 00 02 39 85 08 DC 00 00 00 44
198		-)))
199	199
200	200	[[image:https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]]
201	201
...	...	@@ -299,47 +299,30 @@
299	299
300	300	=== 1.3.4 How to configure and output commands for RS485 to USB ===
301	301
302		-(((
303	303	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.
304		-)))
305	305
306		-(((
307	307	First, connect the A+ and A- of the USB to the 485 A and 485 B of the energy meter.
308		-)))
309	309
310		-(((
311	311	Open the serial port debugging, set the send and receive to HEX.
312		-)))
313	313
314		-(((
315	315	Baud rate: 9600
316		-)))
317	317
318		-(((
319	319	check digit: Even
320		-)))
321	321
322	322	[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="800" width="600"]]
323	323
324	324	USB
325	325
326		-
327	327	[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]]
328	328
329	329	USB
330	330
331		-
332		-(((
333	333	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.
334		-)))
335	335
336		-(((
337		-**Example:**  input：01 03 00 31 00 02 95 c4
338		-)))
	293	+Example:input：01 03 00 31 00 02 95 c4
339	339
340		-(((
341		- output:01 03 04 00 00 00 42 7A 02
342		-)))
	295	+{{{ output:01 03 04 00 00 00 42 7A 02
	296	+}}}
343	343
344	344	[[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]
345	345
...	...	@@ -349,9 +349,7 @@
349	349
350	350	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.
351	351
352		-(((
353	353	Set the device address according to the parameters in the appendix of the MODBUS communication protocol.
354		-)))
355	355
356	356	[[image:https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]]
357	357
...	...	@@ -359,19 +359,13 @@
359	359
360	360	[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="800" width="600"]]
361	361
362		-[[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"]]
363	363
364		-(((
365	365	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.
366		-)))
367	367
368		-(((
369	369	We can use AT+CFGDEV to set the device address.
370		-)))
371	371
372		-(((
373	373	We modify the device address 01 of the first energy meter to 02.
374		-)))
375	375
376	376	[[image:https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]
377	377