Last modified by Edwin Chen on 2022/11/22 09:38
<
From version < 19.1 >
edited by Bei Jinggeng
on 2022/11/14 14:01
To version < 9.2 >
edited by Xiaoling
on 2022/06/02 14:25
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -Point to Point Communication of LT-22222-L
1 + Point to Point Communication of LT-22222-L
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Bei
1 +XWiki.Xiaoling
Content
... ... @@ -1,10 +1,7 @@
1 -**Contents： **
2 -
1 +{{box cssClass="floatinginfobox" title="**Contents**"}}
3 3  {{toc/}}
3 +{{/box}}
4 4  
5 -
6 -
7 -
8 8  = **1. Overview** =
9 9  
10 10  (((
... ... @@ -15,20 +15,20 @@
15 15  [[Point to Point Software for LT-22222-L>>https://github.com/dragino/LT-22222-L]].
16 16  )))
17 17  
15 +== ==
18 18  
19 19  = **2. Features for this firmware** =
20 20  
19 +
21 21  == **2.1  Point To Point** ==
22 22  
23 -=== **2.1.1 Overview** ===
24 24  
25 -
26 26  [[image:image-20220602111219-1.png||height="472" width="972"]]
27 27  
28 28  
29 -=== **2.2.2 Configure** ===
26 +(% class="wikigeneratedid" id="H2.2.Configure" %)
27 +(% style="color:blue" %)**Configure:**
30 30  
31 -
32 32  (% border="1" style="background-color:#f7faff; color:black; width:500px" %)
33 33  |=**A's configuration**|=**B's configuration**
34 34  |AT+GROUPMOD=0|AT+GROUPMOD=0
... ... @@ -41,80 +41,18 @@
41 41  |AT+DI2TODO2=2 |AT+DI2TODO2=2
42 42  |AT+DI2TORO2=2|AT+DI2TORO2=2
43 43  
44 -=== **2.2.3 Serial port display** ===
45 45  
46 46  
47 -(% class="wikigeneratedid" %)
48 -[[image:image-20220602111219-2.png]]
49 -
50 -
51 -(% class="wikigeneratedid" %)
52 -[[image:image-20220602111219-3.png]]
53 -
54 -(% class="wikigeneratedid" %)
55 -If the sender does not get the ACK reply from the receiver, it will retransmit up to 4 times, each interval is 6 seconds, and the UplinkCounter of the retransmission will not increase.
56 -
57 -
58 58  == **2.2  Point To Mult-Point ** ==
59 59  
60 -=== **2.2.1 Overview** ===
61 61  
46 +[[image:image-20220602111219-2.png]]
62 62  
63 -[[image:1654152390874-192.png]]
64 64  
49 +[[image:image-20220602111219-3.png]]
65 65  
66 -=== **2.2.2  Configure** ===
67 -
68 -
69 -(% style="color:#4f81bd" %)**Configuration of the TX group:**
70 -
71 -AT+GROUPMOD=0,2
72 -
73 -AT+TXCHS=868700000
74 -
75 -AT+RXCHS=869000000
76 -
77 -AT+TRIG1=2,50
78 -
79 -AT+TRIG2=2,50
80 -
81 -AT+DI1TODO1=1
82 -
83 -AT+DI1TORO1=1
84 -
85 -AT+DI2TODO2=1
86 -
87 -AT+DI2TORO2=1
88 -
89 -
90 -(% style="color:#4f81bd" %)**Configuration for RX group number 1:**
91 -
92 -AT+GROUPMOD=1,1
93 -
94 -AT+TXCHS=869000000
95 -
96 -AT+RXCHS=868700000
97 -
98 -
99 -(% style="color:#4f81bd" %)**Configuration for RX group number 2:**
100 -
101 -AT+GROUPMOD=1,2
102 -
103 -AT+TXCHS=869000000
104 -
105 -AT+RXCHS=868700000
106 -
107 -
108 -=== **2.2.3 Serial port display** ===
109 -
110 -
111 -[[image:image-20220602144747-1.png]]
112 -
113 -
114 -[[image:image-20220602144747-2.png]]
115 -
116 116  (((
117 -If the TX group does not receive all the ACK replies from the RX group, it will retransmit up to 4 times, each time interval is 30 seconds, and the retransmission UplinkCounter will not increase.
52 +If the sender does not get the ACK reply from the receiver, it will retransmit up to 4 times, each interval is 6 seconds, and the UplinkCounter of the retransmission will not increase.
118 118  )))
119 119  
120 120  
... ... @@ -121,581 +121,154 @@
121 121  == **2.3 AT command** ==
122 122  
123 123  
124 -(((
125 125  (% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU
126 -)))
127 127  
128 -(((
129 129  (% style="color:#037691" %)**AT+FDR** (%%)**:**  Reset Parameters to Factory Default, Keys Reserve
130 -)))
131 131  
132 -(((
133 133  (% style="color:#037691" %)**AT+FCU** (%%)**:**  Get or Set the Frame Counter Uplink
134 -)))
135 135  
136 -(((
137 137  (% style="color:#037691" %)**AT+FCD** (%%)**:**  Get or Set the Frame Counter Downlink
138 -)))
139 139  
140 -(((
141 141  (% style="color:#037691" %)**AT+TXP** (%%)**:**  Get or Set the transmit power, the maximum is 20dBm (default is 14dBm)
142 -)))
143 143  
144 -(((
145 145  (% style="color:#037691" %)**AT+SYNC** (%%)**:**  Get or Set the Sync word [1:0x34,0:0x12] (default is 1)
146 -)))
147 147  
148 -(((
149 149  (% style="color:#037691" %)**AT+PMB** (%%)**:    **Get or Set the preamble (default:8)
150 -)))
151 151  
152 -(((
153 153  (% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000)
154 -)))
155 155  
156 -(((
157 157  (% style="color:#037691" %)**AT+TXSF **(%%)**:**  Get or Set the spreading factor of TX (7 to 12) (default:12)
158 -)))
159 159  
160 -(((
161 161  (% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000)
162 -)))
163 163  
164 -(((
165 165  (% style="color:#037691" %)**AT+RXSF **(%%)**:**  Get or Set the spreading factor of RX (7 to 12) (default:12)
166 -)))
167 167  
168 -(((
169 169  (% style="color:#037691" %)**AT+BW **(%%)**:       **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
170 -)))
171 171  
172 -(((
173 173  (% style="color:#037691" %)**AT+CR **(%%)**:        **Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1)
174 -)))
175 175  
176 -(((
177 177  (% style="color:#037691" %)**AT+TDC **(%%)**:**  Get or set the application data transmission interval in ms(default 10 minutes)
178 -)))
179 179  
180 -(((
181 181  (% style="color:#037691" %)**AT+VER **(%%)**:**  Get firmware version number
182 -)))
183 183  
184 -(((
185 185  (% style="color:#037691" %)**AT+SEND **(%%)**:   **Set Custom sent hex data
186 -)))
187 187  
188 -(((
189 189  (% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0)
190 -)))
191 191  
192 -(((
193 -(((
194 194  (% style="color:#037691" %)**AT+GROUPID **(%%)**:      **Set or Get the password for matching between TX group and RX group, which can be composed of numbers or characters (default: 12345678)
195 -)))
196 -)))
197 197  
198 -(((
199 199  (% style="color:#037691" %)**AT+TRIG1 **(%%)**:**  Set or Get the DI1 pin interrupt trigger mode (default 0,0)
200 -)))
201 201  
202 -(((
203 203  (% style="color:#037691" %)**AT+TRIG2 **(%%)**:            **Set or Get the DI2 pin interrupt trigger mode (default 0,0)
204 -)))
205 205  
206 -(((
207 207  (% style="color:#037691" %)**AT+DI1TODO1 **(%%)**:    **Set or get the mode in which DI1 maps to DO1 (default 0)
208 -)))
209 209  
210 -(((
211 211  (% style="color:#037691" %)**AT+DI1TORO1 **(%%)**:    **Set or get the mode in which DI1 maps to RO1(default 0)
212 -)))
213 213  
214 -(((
215 215  (% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:**  Set or get the mode in which DI2 maps to DO2(default 0)
216 -)))
217 217  
218 -(((
219 219  (% style="color:#037691" %)**AT+DI2TORO2 **(%%)**:    **Set or get the mode in which DI2 maps to RO2(default 0)
220 -)))
221 221  
222 -(((
223 -
224 -)))
225 225  
226 -(((
227 -
228 -)))
229 229  
230 -(((
231 231  (% style="color:#4f81bd" %)**Example 1:**
232 -)))
233 233  
234 -(((
235 235  **AT+SEND=01020304 **will send a payload of 01020304
236 -)))
237 237  
238 -(((
239 -
240 -)))
241 241  
242 -(((
243 243  (% style="color:#4f81bd" %)**Example 2: **
244 -)))
245 245  
246 -(((
247 247  **AT+TRIGx=a    **Trigger directly without triggering time
248 -)))
249 249  
250 -(((
251 251  **AT+TRIGx=a,b**
252 -)))
253 253  
254 -(((
255 255  a=0: falling edge;
256 -)))
257 257  
258 -(((
259 259  a=1: rising edge;
260 -)))
261 261  
262 -(((
263 263  a=2: falling edge or rising edge;
264 -)))
265 265  
266 -(((
267 267  b:  triggering time in milliseconds.
268 -)))
269 269  
270 -(((
271 271  AT+TRIGx=2,50  Falling edge or rising edge trigger, and the trigger time exceeds 50ms.
272 -)))
273 273  
274 -(((
275 -
276 -)))
277 277  
278 -(((
279 279  (% style="color:#4f81bd" %)**Example 3: **
280 -)))
281 281  
282 -(((
283 283  **AT+DI1TODO1= maps value**
284 -)))
285 285  
286 -(((
287 287  **AT+DI1TORO1= maps value**
288 -)))
289 289  
290 -(((
291 291  **AT+DI2TODO2= maps value**
292 -)))
293 293  
294 -(((
295 295  **AT+DI2TORO2= maps value**
296 -)))
297 297  
298 -(((
299 -
300 -)))
301 301  
302 302  (% border="1" style="background-color:#f7faff; color:black; width:706px" %)
303 -|=(% style="width: 102px;" %)(((
304 -Maps value
305 -)))|=(% style="width: 331px;" %)(((
306 -DIx to DOx
307 -)))|=(% style="width: 268px;" %)(((
308 -DIx to ROx
309 -)))
310 -|(% style="width:102px" %)(((
311 -0
312 -)))|(% style="width:331px" %)(((
313 -No Action
314 -)))|(% style="width:268px" %)(((
315 -No Action
316 -)))
317 -|(% style="width:102px" %)(((
318 -1
319 -)))|(% style="width:331px" %)(((
320 -If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level
321 -)))|(% style="width:268px" %)(((
322 -(((
143 +|=(% style="width: 102px;" %)Maps value|=(% style="width: 331px;" %)DIx to DOx|=(% style="width: 268px;" %)DIx to ROx
144 +|(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action
145 +|(% style="width:102px" %)1|(% style="width:331px" %)If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(% style="width:268px" %)(((
323 323  If DIx is high, control ROx to close,
324 -)))
325 325  
326 -(((
327 327  if DIx is low, control ROx to open
328 328  )))
329 -)))
330 -|(% style="width:102px" %)(((
331 -2
332 -)))|(% style="width:331px" %)(((
333 -If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level
334 -)))|(% style="width:268px" %)(((
335 -(((
150 +|(% style="width:102px" %)2|(% style="width:331px" %)If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(% style="width:268px" %)(((
336 336  If DIx is high, control ROx to open,
337 -)))
338 338  
339 -(((
340 340  if DIx is low, control ROx to close
341 341  )))
342 -)))
343 -|(% style="width:102px" %)(((
344 -3
345 -)))|(% style="width:331px" %)(((
346 -DOx state flip
347 -)))|(% style="width:268px" %)(((
348 -ROx state flip
349 -)))
155 +|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip
350 350  
351 -(((
352 352  (% style="color:#4f81bd" %)**Example 4: **
353 -)))
354 354  
355 -(((
356 356  **AT+GROUPMOD=0**  Set to point to point mode
357 -)))
358 358  
359 -(((
360 360  **AT+GROUPMOD=0,aa**  Set the TX group that controls the number of aa (The maximum value of aa is 8)
361 -)))
362 362  
363 -(((
364 -(((
365 365  **AT+GROUPMOD=1,bb**  Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8)
366 -)))
367 -)))
368 368  
369 -(((
370 370  **AT+GROUPMOD=0,2**  Set to control the TX group of the two RX groups
371 -)))
372 372  
373 -(((
374 374  **AT+GROUPMOD=1,1**  Set the RX group numbered 1
375 -)))
376 376  
377 -(((
378 378  **AT+GROUPMOD=1,2**  Set the RX group numbered 2
379 379  
380 380  
381 -=== 2.3.1 TRIG command is configured in the transmit LT. (LT1)(Since firmware 1.3) ===
382 -)))
383 -
384 -**AT+TRIGx=a     **Trigger transmit directly without triggering time
385 -
386 -**AT+TRIGx=a,b**  Trigger transmit with triggering time threshold
387 -
388 -**AT+TRIGx=a,b,c **Trigger transmit with triggering time threshold, and continue to transmit every xx seconds if DI status no change.
389 -
390 -
391 -a=0: falling edge;
392 -
393 -a=1: rising edge;
394 -
395 -a=2: falling edge or rising edge;
396 -
397 -b:  triggering time in milliseconds.
398 -
399 -c: transmit interval
400 -
401 -
402 -**Use Case 1**: Once the DI1 port status change ( either from low to high or high to low, LT1 sends a trigger to LT-2)
403 -
404 -Command:
405 -
406 -AT+TRIG1=2,50  Falling edge or rising edge trigger, and the trigger time should exceed 50ms.
407 -
408 -
409 -**Use Case 2: **Sync LT2 RO / DO status with LT1 every minute.
410 -
411 -Command:
412 -
413 -AT+TRIG2=2,50,60 Once there is falling edge or rising edge on DI2 of LT1, LT1 will transmit trigger to LT2 and LT2 can sync the status of RO/DO.
414 -
415 -
416 -=== 2.3.2 RO/DO is configured in the receiver LT (LT2)(Since firmware 1.3) ===
417 -
418 -AT+DI1TODO1= maps value[,latch time]
419 -
420 -AT+DI1TORO1= maps value[,latch time]
421 -
422 -AT+DI2TODO2= maps value[,latch time]
423 -
424 -AT+DI2TORO2= maps value[,latch time]
425 -
426 -
427 -(% border="1" style="background-color:#f7faff; color:black; width:706px" %)
428 -| **Maps value**|DIx to DOx|DIx to ROx
429 -|0|No Action|No Action
430 -|1|If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(((
431 -If DIx is high, control ROx to close,
432 -
433 -if DIx is low, control ROx to open
434 -)))
435 -|2|If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(((
436 -If DIx is high, control ROx to open,
437 -
438 -if DIx is low, control ROx to close
439 -)))
440 -|3|DOx state flip|ROx state flip
441 -
442 -latch time, if latch time is defined, DO or RO will go back to the original status after latch time, if there is a new trigger comes, the LT2 will use the new latch time settings and ignore the old one.
443 -
444 -
445 -**Case1**:
446 -
447 -AT+DI1TODO1=1 ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, if DI1 of LT1 is trigger high, DO1 of LT2 will output low, if DI1 of LT1 is trigger low, DO2 of LT2 will output high.
448 -
449 -
450 -**Case2**:
451 -
452 -AT+DI1TODO1=1,60 ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, DO1 will keep the status 60 seconds and then go back to original state.
453 -
454 -
455 -=== 2.3.3 Save the RO/DO status during power off(Since firmware 1.3) ===
456 -
457 -Enable/Disbale retain Digital Output/Relay Output after power off / Power On
458 -
459 -AT+DOROSAVE=0 ~/~/ Disable Retain after power off/on
460 -
461 -AT+DOROSAVE=1 ~/~/ Enable Retain after power off/on
462 -
463 -AT+DOROSAVE=2,a,b,c,d ~/~/ set DO/RO port to default state after power on.
464 -
465 -a: for DO1
466 -
467 -b: for DO2
468 -
469 -c: for RO1
470 -
471 -d: for RO2.
472 -
473 -Example:
474 -
475 -AT+DOROSAVE=2,0,0,0,1 ~/~/ Set DO1/DO2 to Low, RO1 to open after power on , set RO2 to close after power on.
476 -
477 -
478 -=== 2.3.4 Control Sleep status.(Since firmware 1.3) ===
479 -
480 -DI2 can be used to set LT into sleep mode.
481 -
482 -AT+DI2SLEEP=1 ~/~/Enable DI2 as Sleep pin
483 -
484 -AT+DI2SLEEP=0 ~/~/Disable DI2 as Sleep pin
485 -
486 -When DI2 is enabled as sleep pin, a falling trigger (with 500ms pulse) will set LT into sleep mode. A raising trigger will wake up it again.
487 -
488 -
489 489  == **2.4 Data Format** ==
490 490  
491 -(((
492 492  8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum
493 -)))
494 494  
495 -(((
496 -
497 -)))
498 498  
499 -(((
500 500  (% style="color:#4f81bd" %)**Payload:**
501 -)))
502 502  
503 503  (% border="1" style="background-color:#f7faff; color:black; width:938px" %)
504 -|=(% style="width: 123px;" %)(((
505 -**Size (bytes)**
506 -)))|=(% style="width: 107px;" %)(((
507 -1
508 -)))|=(% style="width: 107px;" %)(((
509 -1
510 -)))|=(% style="width: 107px;" %)(((
511 -1
512 -)))|=(% style="width: 107px;" %)(((
513 -1
514 -)))|=(% style="width: 107px;" %)(((
515 -1
516 -)))|=(% style="width: 107px;" %)(((
517 -1
518 -)))|=(% style="width: 107px;" %)(((
519 -1
520 -)))|=(% style="width: 107px;" %)(((
521 -1
522 -)))|=(% style="width: 107px;" %)(((
523 -1
524 -)))
525 -|(% style="width:123px" %)(((
526 -**Value**
527 -)))|(% style="width:38px" %)(((
528 -address
529 -)))|(% style="width:70px" %)(((
530 -request
531 -)))|(% style="width:52px" %)(((
532 -ACK
533 -)))|(% style="width:127px" %)(((
534 -(((
180 +|=(% style="width: 123px;" %)**Size (bytes)**|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1
181 +|(% style="width:123px" %)**Value**|(% style="width:38px" %)address|(% style="width:70px" %)request|(% style="width:52px" %)ACK|(% style="width:127px" %)(((
535 535  DI1&
536 -)))
537 537  
538 -(((
539 539  DI1 level
540 -)))
541 -)))|(% style="width:101px" %)(((
542 -DI1TODO1
543 -)))|(% style="width:91px" %)(((
544 -DI1TORO1
545 -)))|(% style="width:111px" %)(((
546 -(((
185 +)))|(% style="width:101px" %)DI1TODO1|(% style="width:91px" %)DI1TORO1|(% style="width:111px" %)(((
547 547  DI2&
548 -)))
549 549  
550 -(((
551 551  DI2 level
552 -)))
553 -)))|(% style="width:105px" %)(((
554 -DI2TODO2
555 -)))|(% style="width:106px" %)(((
556 -DI2TORO2
557 -)))
189 +)))|(% style="width:105px" %)DI2TODO2|(% style="width:106px" %)DI2TORO2
558 558  
559 -(((
560 560  (% style="color:#037691" %)**The first byte**(%%)**:**  00 is the broadcast address, 01-08 is the RX group number.
561 -)))
562 562  
563 -(((
564 564  (% style="color:#037691" %)**The second byte**(%%)**:**  send mapping request when not 0, not request when it is 0.
565 -)))
566 566  
567 -(((
568 568  (% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
569 -)))
570 570  
571 -(((
572 -(((
573 573  (% style="color:#037691" %)**The fourth byte**(%%)**:**  the high four bits are 1 to represent DI1, and the low four bits are the level of DI1 when the interrupt is triggered.
574 -)))
575 -)))
576 576  
577 -(((
578 578  (% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
579 -)))
580 580  
581 -(((
582 582  (% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
583 -)))
584 584  
585 -(((
586 -(((
587 587  (% style="color:#037691" %)**The seventh byte**(%%)**:**  the high four bits are 2 to represent DI2, and the low four bits are the level of DI2 when the interrupt is triggered.
588 -)))
589 -)))
590 590  
591 -(((
592 592  (% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
593 -)))
594 594  
595 -(((
596 596  (% style="color:#037691" %)**The 9th byte**(%%)**:**  DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered.
597 -)))
598 598  
599 -(((
600 600  
601 -
602 -(% style="color:#4f81bd" %)**Payload:（Since firmware 1.3）The receiver replies to the sent packet**
603 -)))
604 -
605 -(% border="1" style="background-color:#f7faff; color:black; width:938px" %)
606 -|=(% style="width: 123px;" %)(((
607 -**Size (bytes)**
608 -)))|=(% style="width: 107px;" %)(((
609 -1
610 -)))|=(% style="width: 107px;" %)(((
611 -1
612 -)))|=(% style="width: 107px;" %)(((
613 -1
614 -)))|=(% style="width: 107px;" %)(((
615 -1
616 -)))|=(% style="width: 107px;" %)(((
617 -1
618 -)))|=(% style="width: 107px;" %)(((
619 -1
620 -)))|=(% style="width: 107px;" %)(((
621 -1
622 -)))|=(% style="width: 107px;" %)(((
623 -1
624 -)))|=(% style="width: 107px;" %)(((
625 -1
626 -)))
627 -|(% style="width:123px" %)(((
628 -**Value**
629 -)))|(% style="width:38px" %)(((
630 -address
631 -)))|(% style="width:70px" %)(((
632 -request
633 -)))|(% style="width:52px" %)(((
634 -ACK
635 -)))|(% style="width:127px" %)(((
636 -(((
637 -DO1&
638 -)))
639 -
640 -(((
641 -DO1 level
642 -)))
643 -)))|(% style="width:101px" %)(((
644 -DI1TODO1
645 -)))|(% style="width:91px" %)(((
646 -DI1TORO1
647 -)))|(% style="width:111px" %)(((
648 -(((
649 -RO2&
650 -)))
651 -
652 -(((
653 -RO2 level
654 -)))
655 -)))|(% style="width:105px" %)(((
656 -DI2TODO2
657 -)))|(% style="width:106px" %)(((
658 -DI2TORO2
659 -)))
660 -
661 -(((
662 -(% style="color:#037691" %)**The first byte**(%%)**:**  00 is the broadcast address, 01-08 is the RX group number.
663 -)))
664 -
665 -(((
666 -(% style="color:#037691" %)**The second byte**(%%)**:**  send mapping request when not 0, not request when it is 0.
667 -)))
668 -
669 -(((
670 -(% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
671 -)))
672 -
673 -(((
674 -(((
675 -(% style="color:#037691" %)**The fourth byte**(%%)**:**  the high four bits are 1 to represent DO1, and the low four bits are the level of DO1 when the interrupt is triggered.
676 -)))
677 -)))
678 -
679 -(((
680 -(% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
681 -)))
682 -
683 -(((
684 -(% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
685 -)))
686 -
687 -(((
688 -(((
689 -(% style="color:#037691" %)**The seventh byte**(%%)**:**  the high four bits are 2 to represent RO2, and the low four bits are the level of RO2 when the interrupt is triggered.
690 -)))
691 -)))
692 -
693 -(((
694 -(% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
695 -)))
696 -
697 -(((
698 -(% style="color:#037691" %)**The 9th byte**(%%)**:**  DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered.
699 -)))
700 -
701 -
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