Last modified by Karry Zhuang on 2024/07/11 11:58
<
From version < 1.3 >
edited by Xiaoling
on 2022/05/12 09:50
To version < 1.9 >
edited by Xiaoling
on 2022/05/12 10:04
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -41,9 +41,13 @@
41 41  
42 42  === 1.3.1 OverView ===
43 43  
44 -Note：The specifications of each energy meter are different, please refer to your own energy meter specifications.
44 +(((
45 +**Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications.
46 +)))
45 45  
48 +(((
46 46  This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
50 +)))
47 47  
48 48  [[image:https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="800" width="600"]]
49 49  
... ... @@ -72,13 +72,14 @@
72 72  
73 73  === 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
74 74  
75 -If the user needs to read the parameters of the electric energy meter and use the modbus command,
79 +If the user needs to read the parameters of the electric energy meter and use the modbus command,please refer to the appendix of the MODBUS communication protocol in the user manual of the energy meter.
76 76  
77 -please refer to the appendix of the MODBUS communication protocol in the user manual of the energy meter.
78 -
79 79  [[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]]
80 80  
83 +(% class="box infomessage" %)
84 +(((
81 81  Example:AT+COMMAND1=01 03 00 00 00 01 84 0A
86 +)))
82 82  
83 83  * The first byte : slave address code (=001～247)
84 84  * The second byte : read register value function code
... ... @@ -88,7 +88,10 @@
88 88  
89 89  How to parse the reading of the return command of the parameter：
90 90  
96 +(% class="box infomessage" %)
97 +(((
91 91  Example:RETURN1：01 03 02 08 FD 7E 05
99 +)))
92 92  
93 93  * The first byte ARD: slave address code (=001～254)
94 94  * The second byte: Return to read function code
... ... @@ -102,17 +102,22 @@
102 102  
103 103  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
104 104  
105 -==== via AT COMMAND: ====
113 +==== 1.3.3.1 via AT COMMAND: ====
106 106  
107 -First, we can use AT+CFGDEV to get the return value, and we can also judge whether the input parameters are correct.
115 +First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct.
108 108  
117 +(((
109 109  If the configured parameters and commands are incorrect, the return value is not obtained.
119 +)))
110 110  
111 111  [[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
112 112  
113 -AT COMMAND
123 +**AT COMMAND**
114 114  
125 +(% class="box infomessage" %)
126 +(((
115 115  AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
128 +)))
116 116  
117 117  a: length for the return of AT+COMMAND
118 118  
... ... @@ -126,6 +126,7 @@
126 126  
127 127  PAYLOAD is available after the valid value is intercepted.
128 128  
142 +
129 129  [[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]]
130 130  
131 131  AT COMMAND
... ... @@ -132,11 +132,12 @@
132 132  
133 133  You can get configured PAYLOAD on TTN.
134 134  
149 +
135 135  [[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
136 136  
137 137  AT COMMAND
138 138  
139 -Example: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
154 +**Example**: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
140 140  
141 141  RETURN1:01 03 02 00 02 39 85 00 00(return data)
142 142  
... ... @@ -162,54 +162,91 @@
162 162  
163 163  01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.
164 164  
180 +
165 165  [[~[~[image:https://wiki.dragino.com/images/thumb/b/b8/AT_COMMAND11.png/600px-AT_COMMAND11.png~|~|height="271" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:AT_COMMAND11.png]]
166 166  
167 167  AT COMMAND
168 168  
169 -==== 1.3.3.1 via LoRaWAN DOWNLINK ====
170 170  
186 +==== 1.3.3.2 via LoRaWAN DOWNLINK ====
187 +
171 171  [[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]]
172 172  
190 +(((
173 173  DOWNLINK
192 +)))
174 174  
194 +(((
195 +
196 +)))
197 +
198 +(((
175 175  Type Code 0xAF
200 +)))
176 176  
202 +(((
177 177  0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
204 +)))
178 178  
206 +(((
179 179  Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
208 +)))
180 180  
210 +(((
181 181  Format: AF MM NN LL XX XX XX XX YY
212 +)))
182 182  
214 +(((
183 183  Where:
216 +)))
184 184  
218 +(((
185 185  MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
220 +)))
186 186  
222 +(((
187 187  NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
224 +)))
188 188  
226 +(((
189 189  LL: The length of AT+COMMAND or AT+DATACUT command
228 +)))
190 190  
230 +(((
191 191  XX XX XX XX: AT+COMMAND or AT+DATACUT command
232 +)))
192 192  
234 +(((
193 193  YY: If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN
236 +)))
194 194  
238 +(((
195 195  will execute an uplink after got this command.
240 +)))
196 196  
242 +(((
197 197  Example:
244 +)))
198 198  
246 +(((
199 199  AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1
248 +)))
200 200  
201 201  [[image:https://wiki.dragino.com/images/thumb/4/45/DOWNLINK_METER2.png/600px-DOWNLINK_METER2.png||height="208" width="600"]]
202 202  
203 203  DOWNLINK
204 204  
254 +
205 205  [[~[~[image:https://wiki.dragino.com/images/thumb/2/20/DOWNLINK_METER3.png/600px-DOWNLINK_METER3.png~|~|height="105" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:DOWNLINK_METER3.png]]
206 206  
207 207  DOWNLINK
208 208  
259 +
209 209  [[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]]
210 210  
211 211  DOWNLINK
212 212  
264 +
213 213  [[~[~[image:https://wiki.dragino.com/images/thumb/3/39/DOWNLINK_METER5.png/600px-DOWNLINK_METER5.png~|~|height="176" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:DOWNLINK_METER5.png]]
214 214  
215 215  DOWNLINK

Applications

Navigation

Copyright ©2010-2022 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0