Last modified by Karry Zhuang on 2024/07/11 11:58
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... ... @@ -1,19 +1,33 @@ 1 -= 1. Introduction = 1 +(% class="wikigeneratedid" %) 2 + **Contents:** 2 2 4 +{{toc/}} 5 + 6 + 7 + 8 + 9 + 10 + 11 += **1. Introduction** = 12 + 3 3 This article provide the examples for RS485-LN to connect to different type of RS485 sensors. 4 4 5 -== 1.1 Example 1: Connect to Leak relay and VFD == 6 6 16 +== **1.1 Example 1: Connect to Leak relay and VFD** == 17 + 7 7 This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to Relay and VFD and communicate with Mobile. The structure is like below: 8 8 9 -[[image: https://wiki.dragino.com/images/thumb/5/5c/RS485_01.png/600px-RS485_01.png||height="297" width="534"]]20 +[[image:image-20220527091852-1.png]] 10 10 11 11 Connection 12 12 13 -[[image:https://wiki.dragino.com/images/thumb/f/f2/RS485_02.png/600px-RS485_02.png||height="743" width="528"]](% style="display:none" %) 14 14 25 + 26 +[[image:image-20220527091942-2.png]](% style="display:none" %) 27 + 15 15 Connection 16 16 30 + 17 17 Related documents: 18 18 19 19 * [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : System Structure ... ... @@ -21,28 +21,33 @@ 21 21 * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]] 22 22 23 23 24 -== 1.2 Example 2: Connect to Pulse Counter == 25 25 39 +== **1.2 Example 2: Connect to Pulse Counter** == 40 + 26 26 This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to Pulse Counter and communicate with Mobile. This example and example 2 compose the structure for a farm IoT solution. The structure is like below: 27 27 28 -[[image: https://wiki.dragino.com/images/thumb/3/34/RS485_02_1.png/600px-RS485_02_1.png||height="364" width="600"]]43 +[[image:image-20220527092058-3.png]] 29 29 30 30 Connection 31 31 32 -[[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]] 33 33 48 + 49 +[[image:image-20220527092146-4.png]] 50 + 34 34 Connection 35 35 53 + 36 36 * [[Pickdata MIO40 water pulse counter to LoRa with Dragino RS485-LN>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Pulse-Counter/]] : Configure Document 37 37 * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]] 38 38 57 +== == 39 39 40 -== 1.3 Example3: Use RS485-LN with energy meters == 59 +== **1.3 Example3: Use RS485-LN with energy meters** == 41 41 42 -=== 1.3.1 OverView === 61 +=== **1.3.1 OverView** === 43 43 44 44 ((( 45 -Note:The specifications of each energy meter are different, please refer to your own energy meter specifications. 64 +**Note**:The specifications of each energy meter are different, please refer to your own energy meter specifications. 46 46 ))) 47 47 48 48 ((( ... ... @@ -49,40 +49,58 @@ 49 49 This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter. 50 50 ))) 51 51 52 -[[image: https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="800" width="600"]]71 +[[image:image-20220527092419-5.png]] 53 53 54 54 Connection1 55 55 75 + 76 + 77 +((( 56 56 How to connect with Energy Meter: 79 +))) 57 57 81 +((( 58 58 Follow the instructions of the electric energy meter to connect the phase line and the neutral line, and then connect 485A+ and 485B- to RS485A and RA485B of RS485-LN respectively. 83 +))) 59 59 85 +((( 60 60 The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below 87 +))) 61 61 89 +((( 62 62 Power Source VIN to RS485-LN VIN+ 91 +))) 63 63 93 +((( 64 64 Power Source GND to RS485-LN VIN- 95 +))) 65 65 97 +((( 66 66 Once there is power, the RS485-LN will be on. 99 +))) 67 67 68 -[[image: https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="450" width="600"]]101 +[[image:image-20220527092514-6.png]] 69 69 70 70 Connection2 71 71 72 -[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="800" width="600"]] 73 73 106 + 107 +[[image:image-20220527092555-7.png]] 108 + 74 74 Connection3 75 75 76 76 77 -=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands === 112 +=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** === 78 78 79 -If the user needs to read the parameters of the electric energy meter and use the modbus command, 114 +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. 80 80 81 - please refer to the appendix of the MODBUS communication protocol in theusermanual of the energy meter.116 +[[image:image-20220527092629-8.png]] 82 82 83 -[[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]] 84 84 85 -Example:AT+COMMAND1=01 03 00 00 00 01 84 0A 119 +(% class="box infomessage" %) 120 +((( 121 +**Example:** AT+COMMAND1=01 03 00 00 00 01 84 0A 122 +))) 86 86 87 87 * The first byte : slave address code (=001~247) 88 88 * The second byte : read register value function code ... ... @@ -90,9 +90,14 @@ 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 92 130 +((( 93 93 How to parse the reading of the return command of the parameter: 132 +))) 94 94 95 -Example:RETURN1:01 03 02 08 FD 7E 05 134 +(% class="box infomessage" %) 135 +((( 136 +**Example:** RETURN1:01 03 02 08 FD 7E 05 137 +))) 96 96 97 97 * The first byte ARD: slave address code (=001~254) 98 98 * The second byte: Return to read function code ... ... @@ -101,182 +101,319 @@ 101 101 * The 6th and 7th bytes: CRC16 checksum 102 102 * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage. 103 103 146 +(% class="wikigeneratedid" %) 147 +((( 148 + 149 +))) 104 104 105 -=== 1.3.3 How to configure RS485-LN and parse output commands === 151 +=== **1.3.3 How to configure RS485-LN and parse output commands** === 106 106 107 107 RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK. 108 108 109 -==== via AT COMMAND: ==== 110 110 111 - First,wecanuseAT+CFGDEVto get the return value, and we can also judge whether the input parameters are correct.156 +==== **1.3.3.1 via AT COMMAND:** ==== 112 112 158 +First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct. 159 + 160 +((( 113 113 If the configured parameters and commands are incorrect, the return value is not obtained. 162 +))) 114 114 115 -[[image: https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]164 +[[image:image-20220527092748-9.png]] 116 116 117 117 AT COMMAND 118 118 119 -AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c 120 120 121 -a: length for the return of AT+COMMAND 169 +(% class="box infomessage" %) 170 +((( 171 + AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c 172 +))) 122 122 123 - b:1:grab valid valueby byte,max6 bytes.2: grab valid valueby bytes section,max 3 sections.174 +a: length for the return of AT+COMMAND 124 124 125 - c: definethepositionfor valid value.176 +b: 1: grab valid value by byte, max 6 bytes; 2: grab valid value by bytes section, max 3 sections. 126 126 127 - [[image:https://wiki.dragino.com/images/7/7d/AT_COMMAND2.png||height="278" width="477"]]178 +c: define the position for valid value. 128 128 180 +[[image:image-20220527092936-10.png]] 181 + 129 129 AT COMMAND 130 130 184 + 185 + 131 131 PAYLOAD is available after the valid value is intercepted. 132 132 133 -[[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]] 134 134 189 +[[image:image-20220527093059-11.png]] 190 + 135 135 AT COMMAND 136 136 193 + 194 + 137 137 You can get configured PAYLOAD on TTN. 138 138 139 -[[image: https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]197 +[[image:image-20220527093133-12.png]] 140 140 199 +((( 141 141 AT COMMAND 201 +))) 142 142 143 -Example: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1 203 +((( 204 + 205 +))) 144 144 207 +((( 208 +(% style="color:#4f81bd" %)**Example**: 209 + 210 +CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1 211 +))) 212 + 213 +((( 145 145 RETURN1:01 03 02 00 02 39 85 00 00(return data) 215 +))) 146 146 217 +((( 147 147 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. 148 148 220 + 221 +))) 222 + 223 +((( 149 149 CMD2:Read voltage data with MODBUS command. address:0x00 AT+COMMAND2= 01 03 00 00 00 01,1 225 +))) 150 150 227 +((( 151 151 RETURN2:01 03 02 08 DC BE 1D(return data) 229 +))) 152 152 231 +((( 153 153 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. 154 154 234 + 235 +))) 236 + 237 +((( 155 155 CMD3:Read total active energy data with MODBUS command. address:0x0031 AT+COMMAND3= 01 03 00 31 00 02,1 239 +))) 156 156 241 +((( 157 157 RETURN3:01 03 04 00 00 00 44 FA 00(return data) 243 +))) 158 158 245 +((( 159 159 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. 247 +))) 160 160 249 +((( 161 161 Payload:01 00 02 39 85 08 DC 00 00 00 44 251 +))) 162 162 163 -[[image: https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]]253 +[[image:image-20220527093204-13.png]] 164 164 165 165 AT COMMAND 166 166 167 -01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy. 168 168 169 - [[~[~[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]]258 +(% style="color:#4f81bd" %)**01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.** 170 170 260 + 261 + 262 +[[image:image-20220527093251-14.png]] 263 + 171 171 AT COMMAND 172 172 173 -==== 1.3.3.1 via LoRaWAN DOWNLINK ==== 174 174 175 - [[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423"width="600"]]267 +==== **1.3.3.2 via LoRaWAN DOWNLINK** ==== 176 176 269 +[[image:image-20220527093358-15.png]] 270 + 271 +((( 177 177 DOWNLINK 273 +))) 178 178 179 -Type Code 0xAF 275 +((( 276 + 277 +))) 180 180 279 +((( 280 +(% style="color:#4f81bd" %)**Type Code 0xAF** 281 +))) 282 + 283 +((( 284 +(% class="box infomessage" %) 285 +((( 181 181 0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx. 287 +))) 288 +))) 182 182 290 +((( 183 183 Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink. 292 +))) 184 184 294 +((( 185 185 Format: AF MM NN LL XX XX XX XX YY 296 +))) 186 186 298 +((( 187 187 Where: 300 +))) 188 188 302 +((( 189 189 MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F, 304 +))) 190 190 306 +((( 191 191 NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value. 308 +))) 192 192 310 +((( 193 193 LL: The length of AT+COMMAND or AT+DATACUT command 312 +))) 194 194 314 +((( 195 195 XX XX XX XX: AT+COMMAND or AT+DATACUT command 316 +))) 196 196 318 +((( 197 197 YY: If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN 320 +))) 198 198 322 +((( 199 199 will execute an uplink after got this command. 324 +))) 200 200 201 -Example: 326 +((( 327 + 202 202 203 -AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1 329 +(% style="color:#4f81bd" %)**Example:** 330 +))) 204 204 205 -[[image:https://wiki.dragino.com/images/thumb/4/45/DOWNLINK_METER2.png/600px-DOWNLINK_METER2.png||height="208" width="600"]] 332 +((( 333 +**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1 334 +))) 206 206 336 +[[image:image-20220527093430-16.png]] 337 + 207 207 DOWNLINK 208 208 209 -[[~[~[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]] 210 210 341 + 342 +[[image:image-20220527093508-17.png]] 343 + 211 211 DOWNLINK 212 212 213 -[[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]] 214 214 347 + 348 +[[image:image-20220527093530-18.png]] 349 + 215 215 DOWNLINK 216 216 217 -[[~[~[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]] 218 218 353 + 354 +[[image:image-20220527093607-19.png]] 355 + 219 219 DOWNLINK 220 220 221 -[[image:https://wiki.dragino.com/images/thumb/a/a2/DOWNLINK_METER6.png/600px-DOWNLINK_METER6.png||height="365" width="600"]] 222 222 359 + 360 +[[image:image-20220527093628-20.png]] 361 + 223 223 DOWNLINK 224 224 225 225 226 -=== 1.3.4 How to configure and output commands for RS485 to USB === 365 +=== **1.3.4 How to configure and output commands for RS485 to USB** === 227 227 367 +((( 228 228 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. 369 +))) 229 229 371 +((( 230 230 First, connect the A+ and A- of the USB to the 485 A and 485 B of the energy meter. 373 +))) 231 231 375 +((( 232 232 Open the serial port debugging, set the send and receive to HEX. 377 +))) 233 233 379 +((( 234 234 Baud rate: 9600 381 +))) 235 235 383 +((( 236 236 check digit: Even 385 +))) 237 237 238 -[[image: https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="800" width="600"]]387 +[[image:image-20220527093708-21.png]] 239 239 240 240 USB 241 241 242 -[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]] 243 243 392 + 393 +[[image:image-20220527093747-22.png]] 394 + 244 244 USB 245 245 397 + 398 + 399 +((( 246 246 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. 401 +))) 247 247 248 -Example:input:01 03 00 31 00 02 95 c4 403 +((( 404 +(% style="color:#4f81bd" %)**Example:** (%%)input:01 03 00 31 00 02 95 c4 405 +))) 249 249 250 -{{{ output:01 03 04 00 00 00 42 7A 02 251 -}}} 407 +((( 408 + output:01 03 04 00 00 00 42 7A 02 409 +))) 252 252 253 -[[image: https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]411 +[[image:image-20220527093821-23.png]] 254 254 255 255 USB 256 256 257 -=== 1.3.5 How to configure multiple devices and modify device addresses === 258 258 416 +=== **1.3.5 How to configure multiple devices and modify device addresses** === 417 + 259 259 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. 260 260 420 +((( 421 +((( 261 261 Set the device address according to the parameters in the appendix of the MODBUS communication protocol. 423 +))) 424 +))) 262 262 263 -[[image: https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]]426 +[[image:image-20220601142044-1.png]] 264 264 265 -Example:These two meters are examples of setting parameters and device addresses. 266 266 267 - [[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Doublemeter1.jpg"height="800"width="600"]]429 +**Example**:These two meters are examples of setting parameters and device addresses. 268 268 269 -[[image: https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="800" width="600"]]431 +[[image:image-20220527093950-25.png]] 270 270 433 +[[image:image-20220527094028-26.png]] 434 + 435 +((( 436 +((( 271 271 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. 438 +))) 439 +))) 272 272 441 +((( 442 +((( 273 273 We can use AT+CFGDEV to set the device address. 444 +))) 445 +))) 274 274 447 +((( 448 +((( 275 275 We modify the device address 01 of the first energy meter to 02. 450 +))) 451 +))) 276 276 277 -[[image: https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]453 +[[image:image-20220601142354-2.png]] 278 278 279 -AT+CFGDEV:01 10 00 61 00 01 02 00 02,1 455 +(% class="box infomessage" %) 456 +((( 457 +**AT+CFGDEV:01 10 00 61 00 01 02 00 02,1** 458 +))) 280 280 281 281 * 01:device adaress 282 282 ... ... @@ -298,12 +298,13 @@ 298 298 299 299 Its default device address is 01, and the following are the parameters for configuring two energy meters. 300 300 301 -[[image: https://wiki.dragino.com/images/1/13/Meter11.png||alt="Meter11.png" height="576" width="379"]]480 +[[image:image-20220527094150-28.png]] 302 302 303 -[[image:https://wiki.dragino.com/images/thumb/7/7e/Meter12.png/600px-Meter12.png||alt="Meter12.png" height="262" width="600"]] 304 304 305 - PAYLOAD:0108 DF43 62483 +[[image:image-20220527094224-29.png]] 306 306 485 +**PAYLOAD:01 08 DF 43 62** 486 + 307 307 * 08 DF is the valid value of the meter with device address 02. 308 308 * 43 62 is the valid value of the meter with device address 01. 309 309 ... ... @@ -312,7 +312,7 @@ 312 312 313 313 This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to SCHNEIDER SMART and Monitor and control your cabinet remotely with no wires and with Dragino RS485-LN LoRaWAN technology. The structure is like below: 314 314 315 -[[image: https://wiki.dragino.com/images/thumb/f/fa/RS485_04_2.png/600px-RS485_04_2.png||height="336" width="600"]]495 +[[image:image-20220527094330-30.png]] 316 316 317 317 Connection 318 318 ... ... @@ -327,7 +327,6 @@ 327 327 328 328 * [[Connect to SEM Three>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/SEM_Three_Energy_Meter/&file=SEM%20three%20and%20Dragino%20RS485-LN%20v1.pdf]] : Configure Document for RS485-LN 329 329 330 - 331 331 == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN == 332 332 333 333 This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to CEM C31 485-T1-MID and send the data for remote minitor. The structure is like below: ... ... @@ -334,10 +334,9 @@ 334 334 335 335 * [[CEM C31 485-T1-MID>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/ELECTRICAL%20CABINET/&file=ELECTRICAL%20CABINET%20READINGS.pdf]] : Configure Document For RS485-LN 336 336 337 - 338 338 == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL == 339 339 340 -[[image: https://wiki.dragino.com/images/thumb/9/97/PLC_M221.png/600px-PLC_M221.png||height="353" width="600"]]518 +[[image:image-20220527094556-31.png]] 341 341 342 342 Network Structure 343 343
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