Last modified by Karry Zhuang on 2024/07/11 11:58
<
From version < 60.11 >
edited by Xiaoling
on 2022/12/14 14:13
To version < 36.1 >
edited by Xiaoling
on 2022/05/27 09:43
>
Change comment: Uploaded new attachment "image-20220527094330-30.png", version {1}

Summary

Details

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Content
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1 -**Table of Contents:**
1 +(% class="wikigeneratedid" %)
2 + **Contents:**
2 2  
3 3  {{toc/}}
4 4  
6 += 1. Introduction =
5 5  
6 -
7 -
8 -
9 -
10 -= **1. Introduction** =
11 -
12 -
13 13  This article provide the examples for RS485-LN to connect to different type of RS485 sensors.
14 14  
10 +== 1.1 Example 1: Connect to Leak relay and VFD ==
15 15  
16 -
17 -== **1.1 Example 1: Connect to Leak relay and VFD** ==
18 -
19 -
20 20  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:
21 21  
14 +[[image:image-20220527091852-1.png]]
22 22  
23 -[[image:image-20220527091852-1.png||height="547" width="994"]]
24 -
25 25  Connection
26 26  
27 27  
... ... @@ -31,50 +31,40 @@
31 31  Connection
32 32  
33 33  
34 -(% style="color:blue" %)**Related documents:**
25 +Related documents:
35 35  
36 -* System Structure:  [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]
37 -* Explanation on how to integrate to Node-red and to the Mobile Phone, and with link to the Github code:  [[Configure Manual>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]
27 +* [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : System Structure
28 +* [[Configure Manual>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : Explanation on how to integrate to Node-red and to the Mobile Phone, and with link to the Github code.
38 38  * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]]
39 39  
31 +== 1.2 Example 2: Connect to Pulse Counter ==
40 40  
41 -
42 -== **1.2 Example 2: Connect to Pulse Counter** ==
43 -
44 -
45 45  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:
46 46  
35 +[[image:image-20220527092058-3.png]]
47 47  
48 -[[image:image-20220527092058-3.png||height="552" width="905"]]
49 -
50 50  Connection
51 51  
52 52  
40 +[[image:image-20220527092146-4.png]]
53 53  
54 -[[image:image-20220527092146-4.png||height="507" width="906"]]
55 -
56 56  Connection
57 57  
58 -
59 -(% style="color:blue" %)**Related documents:**
60 -
61 -* Configure Document:  [[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/||_mstmutation="1"]]
44 +* [[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
62 62  * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
63 63  
64 -== **1.3 Example 3: Use RS485-LN with energy meters** ==
47 +== ==
65 65  
49 +== 1.3 Example3: Use RS485-LN with energy meters ==
66 66  
67 -=== **1.3.1 OverView** ===
51 +=== 1.3.1 OverView ===
68 68  
69 -
70 70  (((
71 -(% style="color:red" %)**Note**：**The specifications of each energy meter are different, please refer to your own energy meter specifications.**
54 +**Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications.
72 72  )))
73 73  
74 74  (((
75 75  This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
76 -
77 -
78 78  )))
79 79  
80 80  [[image:image-20220527092419-5.png]]
... ... @@ -82,11 +82,8 @@
82 82  Connection1
83 83  
84 84  
85 -
86 86  (((
87 -(% style="color:blue" %)**How to connect with Energy Meter：**
88 -
89 -
67 +How to connect with Energy Meter：
90 90  )))
91 91  
92 92  (((
... ... @@ -107,8 +107,6 @@
107 107  
108 108  (((
109 109  Once there is power, the RS485-LN will be on.
110 -
111 -
112 112  )))
113 113  
114 114  [[image:image-20220527092514-6.png]]
... ... @@ -116,22 +116,22 @@
116 116  Connection2
117 117  
118 118  
119 -
120 120  [[image:image-20220527092555-7.png]]
121 121  
122 122  Connection3
123 123  
124 124  
100 +=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
125 125  
126 -=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** ===
127 -
128 -
129 129  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.
130 130  
131 -[[image:image-20220601143257-10.png]]
104 +[[image:image-20220527092629-8.png]]
132 132  
133 133  
134 -(% style="color:blue" %)**Example:**(%%)  AT+COMMAND1=01 03 00 00 00 01 84 0A
107 +(% class="box infomessage" %)
108 +(((
109 +**Example:** AT+COMMAND1=01 03 00 00 00 01 84 0A
110 +)))
135 135  
136 136  * The first byte : slave address code (=001～247)
137 137  * The second byte : read register value function code
... ... @@ -140,12 +140,12 @@
140 140  * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
141 141  
142 142  (((
143 -
144 -
145 -
146 146  How to parse the reading of the return command of the parameter：
120 +)))
147 147  
148 -(% style="color:blue" %)**Example:**(%%) RETURN1：01 03 02 08 FD 7E 05
122 +(% class="box infomessage" %)
123 +(((
124 +**Example:** RETURN1：01 03 02 08 FD 7E 05
149 149  )))
150 150  
151 151  * The first byte ARD: slave address code (=001～254)
... ... @@ -158,30 +158,22 @@
158 158  (% class="wikigeneratedid" %)
159 159  (((
160 160  
161 -
162 -
163 -
164 164  )))
165 165  
166 -=== **1.3.3 How to configure RS485-LN and parse output commands** ===
139 +=== 1.3.3 How to configure RS485-LN and parse output commands ===
167 167  
168 -
169 169  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
170 170  
171 171  
144 +==== 1.3.3.1 via AT COMMAND: ====
172 172  
173 -==== **1.3.3.1 via AT COMMAND** ====
146 +First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct.
174 174  
175 -
176 -First, we can use (% style="color:blue" %)**AT+CFGDEV**(%%) to get the return value, and we can also judge whether the input parameters are correct.
177 -
178 178  (((
179 179  If the configured parameters and commands are incorrect, the return value is not obtained.
180 -
181 -
182 182  )))
183 183  
184 -[[image:image-20220601143201-9.png]]
152 +[[image:image-20220527092748-9.png]]
185 185  
186 186  AT COMMAND
187 187  
... ... @@ -188,33 +188,31 @@
188 188  
189 189  (% class="box infomessage" %)
190 190  (((
191 - (% _mstmutation="1" %)**AT+DATACUTx **(%%):  This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
159 + AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
192 192  )))
193 193  
194 -a:  length for the return of AT+COMMAND
162 +a: length for the return of AT+COMMAND
195 195  
196 -b: 1: grab valid value by byte, max 6 bytes;  2: grab valid value by bytes section, max 3 sections.
164 +b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
197 197  
198 -c:  define the position for valid value.
166 +c: define the position for valid value.
199 199  
200 -[[image:image-20220601143115-8.png]]
168 +[[image:image-20220527092936-10.png]]
201 201  
202 202  AT COMMAND
203 203  
204 204  
205 -
206 206  PAYLOAD is available after the valid value is intercepted.
207 207  
208 208  
209 -[[image:image-20220601143046-7.png]]
176 +[[image:image-20220527093059-11.png]]
210 210  
211 211  AT COMMAND
212 212  
213 213  
214 -
215 215  You can get configured PAYLOAD on TTN.
216 216  
217 -[[image:image-20220601143519-1.png]]
183 +[[image:image-20220527093133-12.png]]
218 218  
219 219  (((
220 220  AT COMMAND
... ... @@ -222,77 +222,62 @@
222 222  
223 223  (((
224 224  
225 -
226 -
227 227  )))
228 228  
229 229  (((
230 -(% style="color:blue" %)**Example**:
231 -
232 -
233 -(% style="color:red" %)**CMD1:**(%%) Read current data with MODBUS command. address: 0x03 AT+COMMAND1= 01 03 00 03 00 01,1
194 +**Example**: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
234 234  )))
235 235  
236 236  (((
237 -RETURN1: 01 03 02 00 02 39 85 00 00(return data)
198 +RETURN1:01 03 02 00 02 39 85 00 00(return data)
238 238  )))
239 239  
240 240  (((
241 -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.
242 -
243 -
202 +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.
244 244  )))
245 245  
246 246  (((
247 -(% style="color:red" %)**CMD2: **(%%)Read voltage data with MODBUS command. address: 0x00 AT+COMMAND2= 01 03 00 00 00 01,1
206 +CMD2:Read voltage data with MODBUS command. address:0x00 AT+COMMAND2= 01 03 00 00 00 01,1
248 248  )))
249 249  
250 250  (((
251 -RETURN2: 01 03 02 08 DC BE 1D(return data)
210 +RETURN2:01 03 02 08 DC BE 1D(return data)
252 252  )))
253 253  
254 254  (((
255 -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.
256 -
257 -
214 +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.
258 258  )))
259 259  
260 260  (((
261 -(% style="color:red" %)**CMD3:**(%%) Read total active energy data with MODBUS command. address: 0x0031 AT+COMMAND3= 01 03 00 31 00 02,1
218 +CMD3:Read total active energy data with MODBUS command. address:0x0031 AT+COMMAND3= 01 03 00 31 00 02,1
262 262  )))
263 263  
264 264  (((
265 -RETURN3: 01 03 04 00 00 00 44 FA 00(return data)
222 +RETURN3:01 03 04 00 00 00 44 FA 00(return data)
266 266  )))
267 267  
268 268  (((
269 -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.
226 +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.
270 270  )))
271 271  
272 272  (((
273 -Payload: 01 00 02 39 85 08 DC 00 00 00 44
274 -
275 -
230 +Payload:01 00 02 39 85 08 DC 00 00 00 44
276 276  )))
277 277  
278 -[[image:image-20220601142936-6.png]]
233 +[[image:image-20220527093204-13.png]]
279 279  
280 280  AT COMMAND
281 281  
282 282  
238 +(% 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.**
283 283  
284 -(% style="color:blue" %)**01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.**
240 +[[image:image-20220527093251-14.png]]
285 285  
286 -
287 -[[image:image-20220601143642-2.png]]
288 -
289 289  AT COMMAND
290 290  
291 291  
245 +==== 1.3.3.2 via LoRaWAN DOWNLINK ====
292 292  
293 -==== **1.3.3.2 via LoRaWAN DOWNLINK** ====
294 -
295 -
296 296  [[image:image-20220527093358-15.png]]
297 297  
298 298  (((
... ... @@ -304,7 +304,7 @@
304 304  )))
305 305  
306 306  (((
307 -(% style="color:blue" %)**Type Code 0xAF**
258 +**Type Code 0xAF**
308 308  )))
309 309  
310 310  (((
... ... @@ -315,9 +315,7 @@
315 315  )))
316 316  
317 317  (((
318 -(% style="color:red" %)**Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
319 -
320 -
269 +Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
321 321  )))
322 322  
323 323  (((
... ... @@ -353,48 +353,40 @@
353 353  )))
354 354  
355 355  (((
356 -
357 -
358 -(% style="color:blue" %)**Example:**
305 +Example:
359 359  )))
360 360  
361 361  (((
362 -**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
309 +AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1
363 363  )))
364 364  
365 -[[image:image-20220601144149-6.png]]
312 +[[image:image-20220527093430-16.png]]
366 366  
367 367  DOWNLINK
368 368  
369 369  
317 +[[image:image-20220527093508-17.png]]
370 370  
371 -[[image:image-20220601143803-3.png]]
372 -
373 373  DOWNLINK
374 374  
375 375  
322 +[[image:image-20220527093530-18.png]]
376 376  
377 -[[image:image-20220601144053-5.png]]
378 -
379 379  DOWNLINK
380 380  
381 381  
327 +[[image:image-20220527093607-19.png]]
382 382  
383 -[[image:image-20220601143921-4.png]]
384 -
385 385  DOWNLINK
386 386  
387 387  
332 +[[image:image-20220527093628-20.png]]
388 388  
389 -[[image:image-20220601142805-5.png]]
390 -
391 391  DOWNLINK
392 392  
393 393  
337 +=== 1.3.4 How to configure and output commands for RS485 to USB ===
394 394  
395 -=== **1.3.4 How to configure and output commands for RS485 to USB** ===
396 -
397 -
398 398  (((
399 399  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.
400 400  )))
... ... @@ -413,8 +413,6 @@
413 413  
414 414  (((
415 415  check digit: Even
416 -
417 -
418 418  )))
419 419  
420 420  [[image:image-20220527093708-21.png]]
... ... @@ -422,27 +422,21 @@
422 422  USB
423 423  
424 424  
425 -
426 426  [[image:image-20220527093747-22.png]]
427 427  
428 428  USB
429 429  
430 430  
431 -
432 432  (((
433 433  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.
434 -
435 -
436 436  )))
437 437  
438 438  (((
439 -(% style="color:blue" %)**Example:**  (%%)input：01 03 00 31 00 02 95 c4
374 +**Example:**  input：01 03 00 31 00 02 95 c4
440 440  )))
441 441  
442 442  (((
443 443   output：01 03 04 00 00 00 42 7A 02
444 -
445 -
446 446  )))
447 447  
448 448  [[image:image-20220527093821-23.png]]
... ... @@ -450,10 +450,8 @@
450 450  USB
451 451  
452 452  
386 +=== 1.3.5 How to configure multiple devices and modify device addresses ===
453 453  
454 -=== **1.3.5 How to configure multiple devices and modify device addresses** ===
455 -
456 -
457 457  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.
458 458  
459 459  (((
... ... @@ -462,18 +462,15 @@
462 462  )))
463 463  )))
464 464  
465 -[[image:image-20220601142044-1.png]]
396 +[[image:image-20220527093849-24.png]]
466 466  
467 467  
468 -(% style="color:blue" %)**Example**(%%): These two meters are examples of setting parameters and device addresses.
399 +**Example**:These two meters are examples of setting parameters and device addresses.
469 469  
470 -
471 471  [[image:image-20220527093950-25.png]]
472 472  
473 -
474 474  [[image:image-20220527094028-26.png]]
475 475  
476 -
477 477  (((
478 478  (((
479 479  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.
... ... @@ -482,7 +482,7 @@
482 482  
483 483  (((
484 484  (((
485 -We can use (% style="color:blue" %)**AT+CFGDEV**(%%) to set the device address.
413 +We can use AT+CFGDEV to set the device address.
486 486  )))
487 487  )))
488 488  
... ... @@ -492,9 +492,8 @@
492 492  )))
493 493  )))
494 494  
495 -[[image:image-20220601142354-2.png]]
423 +[[image:image-20220527094100-27.png]]
496 496  
497 -
498 498  (% class="box infomessage" %)
499 499  (((
500 500  **AT+CFGDEV:01 10 00 61 00 01 02 00 02,1**
... ... @@ -520,61 +520,45 @@
520 520  
521 521  Its default device address is 01, and the following are the parameters for configuring two energy meters.
522 522  
523 -[[image:image-20220601142452-3.png]]
450 +[[image:image-20220527094150-28.png]]
524 524  
525 525  
526 -[[image:image-20220601142607-4.png]]
453 +[[image:image-20220527094224-29.png]]
527 527  
455 +PAYLOAD:01 08 DF 43 62
528 528  
529 -(% style="color:blue" %)**PAYLOAD: 01 08 DF 43 62**
530 -
531 531  * 08 DF is the valid value of the meter with device address 02.
532 532  * 43 62 is the valid value of the meter with device address 01.
533 533  
534 -(% style="display:none" %) (%%)
535 535  
536 -(% style="display:none" %) (%%)
537 -
538 538  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
539 539  
463 +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:
540 540  
541 -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.
465 +[[image:https://wiki.dragino.com/images/thumb/f/fa/RS485_04_2.png/600px-RS485_04_2.png||height="336" width="600"]]
542 542  
543 -The structure is like below:
544 -
545 -[[image:image-20220527094330-30.png]]
546 -
547 547  Connection
548 548  
469 +* [[Circuit Breaker Remote Open Close>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Circuit_Breaker_Remote_Open_Close/]] : Configure Documen
549 549  
550 -* Configure Documen:  [[Circuit Breaker Remote Open Close>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Circuit_Breaker_Remote_Open_Close/||_mstmutation="1"]]
551 -
552 -
553 553  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
554 554  
555 -
556 556  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-BL to connect to SEM Three Energy Meter and send the data to mobile phone for remote minitor. The structure is like below:
557 557  
558 -* Configure Document For RS485-BL:  [[Connect to SEM Three>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Application_Note/&file=Dragino%20RS485BL%20and%20pickdata%20SEM%20Three%20v1.pdf||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]
559 -* Configure Document for RS485-LN:  [[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||_mstmutation="1"]]
475 +* [[Connect to SEM Three>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Application_Note/&file=Dragino%20RS485BL%20and%20pickdata%20SEM%20Three%20v1.pdf]] : Configure Document For RS485-BL
560 560  
477 +* [[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
561 561  
479 +== 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN ==
562 562  
563 -== 1.6 Example 6: CEM C31 485-T1-MID Energy Meter with RS485-LN ==
564 -
565 -
566 566  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:
567 567  
568 -* Configure Document For RS485-LN:  [[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||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]
483 +* [[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
569 569  
485 +== 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL ==
570 570  
487 +[[image:https://wiki.dragino.com/images/thumb/9/97/PLC_M221.png/600px-PLC_M221.png||height="353" width="600"]]
571 571  
572 -== 1.7 Example 7: Schneider Electric PLC M221 with RS485-BL ==
573 -
574 -
575 -[[image:image-20220527094556-31.png]]
576 -
577 577  Network Structure
578 578  
579 -
580 580  * [[Reference Instruction>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Schneider%20Electric%20PLC/]]
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