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

Summary

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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.Xiaoling
1 +XWiki.Bei
Content
... ... @@ -1,7 +1,10 @@
1 -{{box cssClass="floatinginfobox" title="**Contents**"}}
1 +**Contents： **
2 +
2 2  {{toc/}}
3 -{{/box}}
4 4  
5 +
6 +
7 +
5 5  = **1. Overview** =
6 6  
7 7  (((
... ... @@ -12,20 +12,20 @@
12 12  [[Point to Point Software for LT-22222-L>>https://github.com/dragino/LT-22222-L]].
13 13  )))
14 14  
15 -== ==
16 16  
17 17  = **2. Features for this firmware** =
18 18  
19 -
20 20  == **2.1  Point To Point** ==
21 21  
23 +=== **2.1.1 Overview** ===
22 22  
25 +
23 23  [[image:image-20220602111219-1.png||height="472" width="972"]]
24 24  
25 25  
26 -(% class="wikigeneratedid" id="H2.2.Configure" %)
27 -(% style="color:blue" %)**Configure:**
29 +=== **2.2.2 Configure** ===
28 28  
31 +
29 29  (% border="1" style="background-color:#f7faff; color:black; width:500px" %)
30 30  |=**A's configuration**|=**B's configuration**
31 31  |AT+GROUPMOD=0|AT+GROUPMOD=0
... ... @@ -38,18 +38,80 @@
38 38  |AT+DI2TODO2=2 |AT+DI2TODO2=2
39 39  |AT+DI2TORO2=2|AT+DI2TORO2=2
40 40  
44 +=== **2.2.3 Serial port display** ===
41 41  
42 42  
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 +
43 43  == **2.2  Point To Mult-Point ** ==
44 44  
60 +=== **2.2.1 Overview** ===
45 45  
46 -[[image:image-20220602111219-2.png]]
47 47  
63 +[[image:1654152390874-192.png]]
48 48  
49 -[[image:image-20220602111219-3.png]]
50 50  
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 +
51 51  (((
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.
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.
53 53  )))
54 54  
55 55  
... ... @@ -56,154 +56,581 @@
56 56  == **2.3 AT command** ==
57 57  
58 58  
124 +(((
59 59  (% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU
126 +)))
60 60  
128 +(((
61 61  (% style="color:#037691" %)**AT+FDR** (%%)**:**  Reset Parameters to Factory Default, Keys Reserve
130 +)))
62 62  
132 +(((
63 63  (% style="color:#037691" %)**AT+FCU** (%%)**:**  Get or Set the Frame Counter Uplink
134 +)))
64 64  
136 +(((
65 65  (% style="color:#037691" %)**AT+FCD** (%%)**:**  Get or Set the Frame Counter Downlink
138 +)))
66 66  
140 +(((
67 67  (% style="color:#037691" %)**AT+TXP** (%%)**:**  Get or Set the transmit power, the maximum is 20dBm (default is 14dBm)
142 +)))
68 68  
144 +(((
69 69  (% style="color:#037691" %)**AT+SYNC** (%%)**:**  Get or Set the Sync word [1:0x34,0:0x12] (default is 1)
146 +)))
70 70  
148 +(((
71 71  (% style="color:#037691" %)**AT+PMB** (%%)**:    **Get or Set the preamble (default:8)
150 +)))
72 72  
152 +(((
73 73  (% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000)
154 +)))
74 74  
156 +(((
75 75  (% style="color:#037691" %)**AT+TXSF **(%%)**:**  Get or Set the spreading factor of TX (7 to 12) (default:12)
158 +)))
76 76  
160 +(((
77 77  (% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000)
162 +)))
78 78  
164 +(((
79 79  (% style="color:#037691" %)**AT+RXSF **(%%)**:**  Get or Set the spreading factor of RX (7 to 12) (default:12)
166 +)))
80 80  
168 +(((
81 81  (% style="color:#037691" %)**AT+BW **(%%)**:       **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
170 +)))
82 82  
172 +(((
83 83  (% 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 +)))
84 84  
176 +(((
85 85  (% style="color:#037691" %)**AT+TDC **(%%)**:**  Get or set the application data transmission interval in ms(default 10 minutes)
178 +)))
86 86  
180 +(((
87 87  (% style="color:#037691" %)**AT+VER **(%%)**:**  Get firmware version number
182 +)))
88 88  
184 +(((
89 89  (% style="color:#037691" %)**AT+SEND **(%%)**:   **Set Custom sent hex data
186 +)))
90 90  
188 +(((
91 91  (% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0)
190 +)))
92 92  
192 +(((
193 +(((
93 93  (% 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 +)))
94 94  
198 +(((
95 95  (% style="color:#037691" %)**AT+TRIG1 **(%%)**:**  Set or Get the DI1 pin interrupt trigger mode (default 0,0)
200 +)))
96 96  
202 +(((
97 97  (% style="color:#037691" %)**AT+TRIG2 **(%%)**:            **Set or Get the DI2 pin interrupt trigger mode (default 0,0)
204 +)))
98 98  
206 +(((
99 99  (% style="color:#037691" %)**AT+DI1TODO1 **(%%)**:    **Set or get the mode in which DI1 maps to DO1 (default 0)
208 +)))
100 100  
210 +(((
101 101  (% style="color:#037691" %)**AT+DI1TORO1 **(%%)**:    **Set or get the mode in which DI1 maps to RO1(default 0)
212 +)))
102 102  
214 +(((
103 103  (% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:**  Set or get the mode in which DI2 maps to DO2(default 0)
216 +)))
104 104  
218 +(((
105 105  (% style="color:#037691" %)**AT+DI2TORO2 **(%%)**:    **Set or get the mode in which DI2 maps to RO2(default 0)
220 +)))
106 106  
222 +(((
223 +
224 +)))
107 107  
226 +(((
227 +
228 +)))
108 108  
230 +(((
109 109  (% style="color:#4f81bd" %)**Example 1:**
232 +)))
110 110  
234 +(((
111 111  **AT+SEND=01020304 **will send a payload of 01020304
236 +)))
112 112  
238 +(((
239 +
240 +)))
113 113  
242 +(((
114 114  (% style="color:#4f81bd" %)**Example 2: **
244 +)))
115 115  
246 +(((
116 116  **AT+TRIGx=a    **Trigger directly without triggering time
248 +)))
117 117  
250 +(((
118 118  **AT+TRIGx=a,b**
252 +)))
119 119  
254 +(((
120 120  a=0: falling edge;
256 +)))
121 121  
258 +(((
122 122  a=1: rising edge;
260 +)))
123 123  
262 +(((
124 124  a=2: falling edge or rising edge;
264 +)))
125 125  
266 +(((
126 126  b:  triggering time in milliseconds.
268 +)))
127 127  
270 +(((
128 128  AT+TRIGx=2,50  Falling edge or rising edge trigger, and the trigger time exceeds 50ms.
272 +)))
129 129  
274 +(((
275 +
276 +)))
130 130  
278 +(((
131 131  (% style="color:#4f81bd" %)**Example 3: **
280 +)))
132 132  
282 +(((
133 133  **AT+DI1TODO1= maps value**
284 +)))
134 134  
286 +(((
135 135  **AT+DI1TORO1= maps value**
288 +)))
136 136  
290 +(((
137 137  **AT+DI2TODO2= maps value**
292 +)))
138 138  
294 +(((
139 139  **AT+DI2TORO2= maps value**
296 +)))
140 140  
298 +(((
299 +
300 +)))
141 141  
142 142  (% border="1" style="background-color:#f7faff; color:black; width:706px" %)
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" %)(((
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 +(((
146 146  If DIx is high, control ROx to close,
324 +)))
147 147  
326 +(((
148 148  if DIx is low, control ROx to open
149 149  )))
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" %)(((
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 +(((
151 151  If DIx is high, control ROx to open,
337 +)))
152 152  
339 +(((
153 153  if DIx is low, control ROx to close
154 154  )))
155 -|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip
342 +)))
343 +|(% style="width:102px" %)(((
344 +3
345 +)))|(% style="width:331px" %)(((
346 +DOx state flip
347 +)))|(% style="width:268px" %)(((
348 +ROx state flip
349 +)))
156 156  
351 +(((
157 157  (% style="color:#4f81bd" %)**Example 4: **
353 +)))
158 158  
355 +(((
159 159  **AT+GROUPMOD=0**  Set to point to point mode
357 +)))
160 160  
359 +(((
161 161  **AT+GROUPMOD=0,aa**  Set the TX group that controls the number of aa (The maximum value of aa is 8)
361 +)))
162 162  
363 +(((
364 +(((
163 163  **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 +)))
164 164  
369 +(((
165 165  **AT+GROUPMOD=0,2**  Set to control the TX group of the two RX groups
371 +)))
166 166  
373 +(((
167 167  **AT+GROUPMOD=1,1**  Set the RX group numbered 1
375 +)))
168 168  
377 +(((
169 169  **AT+GROUPMOD=1,2**  Set the RX group numbered 2
170 170  
171 171  
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 +
172 172  == **2.4 Data Format** ==
173 173  
491 +(((
174 174  8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum
493 +)))
175 175  
495 +(((
496 +
497 +)))
176 176  
499 +(((
177 177  (% style="color:#4f81bd" %)**Payload:**
501 +)))
178 178  
179 179  (% border="1" style="background-color:#f7faff; color:black; width:938px" %)
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" %)(((
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 +(((
182 182  DI1&
536 +)))
183 183  
538 +(((
184 184  DI1 level
185 -)))|(% style="width:101px" %)DI1TODO1|(% style="width:91px" %)DI1TORO1|(% style="width:111px" %)(((
540 +)))
541 +)))|(% style="width:101px" %)(((
542 +DI1TODO1
543 +)))|(% style="width:91px" %)(((
544 +DI1TORO1
545 +)))|(% style="width:111px" %)(((
546 +(((
186 186  DI2&
548 +)))
187 187  
550 +(((
188 188  DI2 level
189 -)))|(% style="width:105px" %)DI2TODO2|(% style="width:106px" %)DI2TORO2
552 +)))
553 +)))|(% style="width:105px" %)(((
554 +DI2TODO2
555 +)))|(% style="width:106px" %)(((
556 +DI2TORO2
557 +)))
190 190  
559 +(((
191 191  (% style="color:#037691" %)**The first byte**(%%)**:**  00 is the broadcast address, 01-08 is the RX group number.
561 +)))
192 192  
563 +(((
193 193  (% style="color:#037691" %)**The second byte**(%%)**:**  send mapping request when not 0, not request when it is 0.
565 +)))
194 194  
567 +(((
195 195  (% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
569 +)))
196 196  
571 +(((
572 +(((
197 197  (% 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 +)))
198 198  
577 +(((
199 199  (% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
579 +)))
200 200  
581 +(((
201 201  (% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
583 +)))
202 202  
585 +(((
586 +(((
203 203  (% 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 +)))
204 204  
591 +(((
205 205  (% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
593 +)))
206 206  
595 +(((
207 207  (% style="color:#037691" %)**The 9th byte**(%%)**:**  DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered.
597 +)))
208 208  
599 +(((
209 209  
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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