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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="334" width="600"]]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="844" width="600"]] 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 ... ... @@ -21,64 +21,91 @@ 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 -Note:The specifications of each energy meter are different, please refer to your own energy meter specifications. 63 +((( 64 +**Note**:The specifications of each energy meter are different, please refer to your own energy meter specifications. 65 +))) 45 45 67 +((( 46 46 This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter. 69 +))) 47 47 48 -[[image: https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="800" width="600"]]71 +[[image:image-20220527092419-5.png]] 49 49 50 50 Connection1 51 51 75 + 76 + 77 +((( 52 52 How to connect with Energy Meter: 79 +))) 53 53 81 +((( 54 54 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 +))) 55 55 85 +((( 56 56 The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below 87 +))) 57 57 89 +((( 58 58 Power Source VIN to RS485-LN VIN+ 91 +))) 59 59 93 +((( 60 60 Power Source GND to RS485-LN VIN- 95 +))) 61 61 97 +((( 62 62 Once there is power, the RS485-LN will be on. 99 +))) 63 63 64 -[[image: https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="450" width="600"]]101 +[[image:image-20220527092514-6.png]] 65 65 66 66 Connection2 67 67 68 -[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="800" width="600"]] 69 69 106 + 107 +[[image:image-20220527092555-7.png]] 108 + 70 70 Connection3 71 71 72 72 73 -=== 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** === 74 74 75 -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. 76 76 77 - please refer to the appendix of the MODBUS communication protocol in theusermanual of the energy meter.116 +[[image:image-20220527092629-8.png]] 78 78 79 -[[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]] 80 80 81 -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 +))) 82 82 83 83 * The first byte : slave address code (=001~247) 84 84 * The second byte : read register value function code ... ... @@ -86,9 +86,14 @@ 86 86 * 5th and 6th bytes: Number of registers to read 87 87 * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6. 88 88 130 +((( 89 89 How to parse the reading of the return command of the parameter: 132 +))) 90 90 91 -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 +))) 92 92 93 93 * The first byte ARD: slave address code (=001~254) 94 94 * The second byte: Return to read function code ... ... @@ -97,182 +97,319 @@ 97 97 * The 6th and 7th bytes: CRC16 checksum 98 98 * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage. 99 99 146 +(% class="wikigeneratedid" %) 147 +((( 148 + 149 +))) 100 100 101 -=== 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** === 102 102 103 103 RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK. 104 104 105 -==== via AT COMMAND: ==== 106 106 107 - 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:** ==== 108 108 158 +First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct. 159 + 160 +((( 109 109 If the configured parameters and commands are incorrect, the return value is not obtained. 162 +))) 110 110 111 -[[image: https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]164 +[[image:image-20220527092748-9.png]] 112 112 113 113 AT COMMAND 114 114 115 -AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c 116 116 117 -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 +))) 118 118 119 - 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 120 120 121 - 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. 122 122 123 - [[image:https://wiki.dragino.com/images/7/7d/AT_COMMAND2.png||height="278" width="477"]]178 +c: define the position for valid value. 124 124 180 +[[image:image-20220527092936-10.png]] 181 + 125 125 AT COMMAND 126 126 184 + 185 + 127 127 PAYLOAD is available after the valid value is intercepted. 128 128 129 -[[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]] 130 130 189 +[[image:image-20220527093059-11.png]] 190 + 131 131 AT COMMAND 132 132 193 + 194 + 133 133 You can get configured PAYLOAD on TTN. 134 134 135 -[[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]] 136 136 199 +((( 137 137 AT COMMAND 201 +))) 138 138 139 -Example: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1 203 +((( 204 + 205 +))) 140 140 207 +((( 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 +((( 141 141 RETURN1:01 03 02 00 02 39 85 00 00(return data) 215 +))) 142 142 217 +((( 143 143 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. 144 144 220 + 221 +))) 222 + 223 +((( 145 145 CMD2:Read voltage data with MODBUS command. address:0x00 AT+COMMAND2= 01 03 00 00 00 01,1 225 +))) 146 146 227 +((( 147 147 RETURN2:01 03 02 08 DC BE 1D(return data) 229 +))) 148 148 231 +((( 149 149 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. 150 150 234 + 235 +))) 236 + 237 +((( 151 151 CMD3:Read total active energy data with MODBUS command. address:0x0031 AT+COMMAND3= 01 03 00 31 00 02,1 239 +))) 152 152 241 +((( 153 153 RETURN3:01 03 04 00 00 00 44 FA 00(return data) 243 +))) 154 154 245 +((( 155 155 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 +))) 156 156 249 +((( 157 157 Payload:01 00 02 39 85 08 DC 00 00 00 44 251 +))) 158 158 159 -[[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]] 160 160 161 161 AT COMMAND 162 162 163 -01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy. 164 164 165 - [[~[~[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]]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.** 166 166 260 + 261 + 262 +[[image:image-20220527093251-14.png]] 263 + 167 167 AT COMMAND 168 168 169 -==== 1.3.3.1 via LoRaWAN DOWNLINK ==== 170 170 171 - [[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** ==== 172 172 269 +[[image:image-20220527093358-15.png]] 270 + 271 +((( 173 173 DOWNLINK 273 +))) 174 174 175 -Type Code 0xAF 275 +((( 276 + 277 +))) 176 176 279 +((( 280 +(% style="color:#4f81bd" %)**Type Code 0xAF** 281 +))) 282 + 283 +((( 284 +(% class="box infomessage" %) 285 +((( 177 177 0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx. 287 +))) 288 +))) 178 178 290 +((( 179 179 Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink. 292 +))) 180 180 294 +((( 181 181 Format: AF MM NN LL XX XX XX XX YY 296 +))) 182 182 298 +((( 183 183 Where: 300 +))) 184 184 302 +((( 185 185 MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F, 304 +))) 186 186 306 +((( 187 187 NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value. 308 +))) 188 188 310 +((( 189 189 LL: The length of AT+COMMAND or AT+DATACUT command 312 +))) 190 190 314 +((( 191 191 XX XX XX XX: AT+COMMAND or AT+DATACUT command 316 +))) 192 192 318 +((( 193 193 YY: If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN 320 +))) 194 194 322 +((( 195 195 will execute an uplink after got this command. 324 +))) 196 196 197 -Example: 326 +((( 327 + 198 198 199 -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 +))) 200 200 201 -[[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 +))) 202 202 336 +[[image:image-20220527093430-16.png]] 337 + 203 203 DOWNLINK 204 204 205 -[[~[~[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]] 206 206 341 + 342 +[[image:image-20220527093508-17.png]] 343 + 207 207 DOWNLINK 208 208 209 -[[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]] 210 210 347 + 348 +[[image:image-20220527093530-18.png]] 349 + 211 211 DOWNLINK 212 212 213 -[[~[~[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]] 214 214 353 + 354 +[[image:image-20220527093607-19.png]] 355 + 215 215 DOWNLINK 216 216 217 -[[image:https://wiki.dragino.com/images/thumb/a/a2/DOWNLINK_METER6.png/600px-DOWNLINK_METER6.png||height="365" width="600"]] 218 218 359 + 360 +[[image:image-20220527093628-20.png]] 361 + 219 219 DOWNLINK 220 220 221 221 222 -=== 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** === 223 223 367 +((( 224 224 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 +))) 225 225 371 +((( 226 226 First, connect the A+ and A- of the USB to the 485 A and 485 B of the energy meter. 373 +))) 227 227 375 +((( 228 228 Open the serial port debugging, set the send and receive to HEX. 377 +))) 229 229 379 +((( 230 230 Baud rate: 9600 381 +))) 231 231 383 +((( 232 232 check digit: Even 385 +))) 233 233 234 -[[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]] 235 235 236 236 USB 237 237 238 -[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]] 239 239 392 + 393 +[[image:image-20220527093747-22.png]] 394 + 240 240 USB 241 241 397 + 398 + 399 +((( 242 242 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 +))) 243 243 244 -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 +))) 245 245 246 -{{{ output:01 03 04 00 00 00 42 7A 02 247 -}}} 407 +((( 408 + output:01 03 04 00 00 00 42 7A 02 409 +))) 248 248 249 -[[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]] 250 250 251 251 USB 252 252 253 -=== 1.3.5 How to configure multiple devices and modify device addresses === 254 254 416 +=== **1.3.5 How to configure multiple devices and modify device addresses** === 417 + 255 255 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. 256 256 420 +((( 421 +((( 257 257 Set the device address according to the parameters in the appendix of the MODBUS communication protocol. 423 +))) 424 +))) 258 258 259 -[[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]] 260 260 261 -Example:These two meters are examples of setting parameters and device addresses. 262 262 263 - [[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. 264 264 265 -[[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]] 266 266 433 +[[image:image-20220527094028-26.png]] 434 + 435 +((( 436 +((( 267 267 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 +))) 268 268 441 +((( 442 +((( 269 269 We can use AT+CFGDEV to set the device address. 444 +))) 445 +))) 270 270 447 +((( 448 +((( 271 271 We modify the device address 01 of the first energy meter to 02. 450 +))) 451 +))) 272 272 273 -[[image: https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]453 +[[image:image-20220527094100-27.png]] 274 274 275 -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 +))) 276 276 277 277 * 01:device adaress 278 278 ... ... @@ -294,12 +294,13 @@ 294 294 295 295 Its default device address is 01, and the following are the parameters for configuring two energy meters. 296 296 297 -[[image: https://wiki.dragino.com/images/1/13/Meter11.png||alt="Meter11.png" height="576" width="379"]]480 +[[image:image-20220527094150-28.png]] 298 298 299 -[[image:https://wiki.dragino.com/images/thumb/7/7e/Meter12.png/600px-Meter12.png||alt="Meter12.png" height="262" width="600"]] 300 300 301 - PAYLOAD:0108 DF43 62483 +[[image:image-20220527094224-29.png]] 302 302 485 +**PAYLOAD:01 08 DF 43 62** 486 + 303 303 * 08 DF is the valid value of the meter with device address 02. 304 304 * 43 62 is the valid value of the meter with device address 01. 305 305 ... ... @@ -308,7 +308,7 @@ 308 308 309 309 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: 310 310 311 -[[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]] 312 312 313 313 Connection 314 314 ... ... @@ -323,7 +323,6 @@ 323 323 324 324 * [[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 325 325 326 - 327 327 == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN == 328 328 329 329 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: ... ... @@ -330,10 +330,9 @@ 330 330 331 331 * [[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 332 332 333 - 334 334 == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL == 335 335 336 -[[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]] 337 337 338 338 Network Structure 339 339
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