Last modified by Edwin Chen on 2022/11/22 09:38
<
From version < 25.1 >
edited by Edwin Chen
on 2022/11/19 09:37
To version < 19.2 >
edited by Xiaoling
on 2022/11/15 08:47
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Edwin
1 +XWiki.Xiaoling
Content
... ... @@ -1,4 +1,4 @@
1 -**Table of Contents： **
1 +**Contents： **
2 2  
3 3  {{toc/}}
4 4  
... ... @@ -5,45 +5,49 @@
5 5  
6 6  
7 7  
8 -= 1. Overview =
8 += **1. Overview** =
9 9  
10 10  (((
11 11  
12 12  
13 13  Shipped LT-22222-L is base on LoRaWAN protocol. We also develop a open source Point to Point LoRa protocol for LT-22222-L. The source code and hex file can be found at:
14 +)))
14 14  
15 -* [[Source Code>>https://github.com/dragino/LT-22222-L]].
16 -* [[Firmware>>https://github.com/dragino/LT-22222-L/releases]].
16 +(((
17 +[[Point to Point Software for LT-22222-L>>https://github.com/dragino/LT-22222-L]].
17 17  )))
18 18  
19 -= 2. Features for this firmware =
20 20  
21 -== 2.1  Point To Point ==
21 += **2. Features for this firmware** =
22 22  
23 -=== 2.1.1 Overview ===
23 +== **2.1  Point To Point** ==
24 24  
25 +=== **2.1.1 Overview** ===
25 25  
27 +
26 26  [[image:image-20220602111219-1.png||height="472" width="972"]]
27 27  
28 28  
29 -=== 2.2.2 Configure ===
31 +=== **2.2.2 Configure** ===
30 30  
31 31  
32 -(% border="1" style="background-color:#f7faff; color:black; width:360px" %)
33 -|=(% style="width: 179px;" %)**A's configuration**|=(% style="width: 177px;" %)**B's configuration**
34 -|(% style="width:179px" %)AT+GROUPMOD=0|(% style="width:177px" %)AT+GROUPMOD=0
35 -|(% style="width:179px" %)AT+TXCHS=868700000|(% style="width:177px" %)AT+TXCHS=869000000
36 -|(% style="width:179px" %)AT+RXCHS=869000000|(% style="width:177px" %)AT+RXCHS=868700000
37 -|(% style="width:179px" %)AT+TRIG1=2,50|(% style="width:177px" %)AT+TRIG1=2,50
38 -|(% style="width:179px" %)AT+TRIG2=2,50|(% style="width:177px" %)AT+TRIG2=2,50
39 -|(% style="width:179px" %)AT+DI1TODO1=2|(% style="width:177px" %)AT+DI1TODO1=2
40 -|(% style="width:179px" %)AT+DI1TORO1=2|(% style="width:177px" %)AT+DI1TORO1=2
41 -|(% style="width:179px" %)AT+DI2TODO2=2 |(% style="width:177px" %)AT+DI2TODO2=2
42 -|(% style="width:179px" %)AT+DI2TORO2=2|(% style="width:177px" %)AT+DI2TORO2=2
34 +(% border="1" style="background-color:#f7faff; color:black; width:500px" %)
35 +|=**A's configuration**|=**B's configuration**
36 +|AT+GROUPMOD=0|AT+GROUPMOD=0
37 +|AT+TXCHS=868700000|AT+TXCHS=869000000
38 +|AT+RXCHS=869000000|AT+RXCHS=868700000
39 +|AT+TRIG1=2,50|AT+TRIG1=2,50
40 +|AT+TRIG2=2,50|AT+TRIG2=2,50
41 +|AT+DI1TODO1=2|AT+DI1TODO1=2
42 +|AT+DI1TORO1=2|AT+DI1TORO1=2
43 +|AT+DI2TODO2=2 |AT+DI2TODO2=2
44 +|AT+DI2TORO2=2|AT+DI2TORO2=2
43 43  
44 -=== 2.2.3 Serial port display ===
45 45  
46 46  
48 +=== **2.2.3 Serial port display** ===
49 +
50 +
47 47  (% class="wikigeneratedid" %)
48 48  [[image:image-20220602111219-2.png]]
49 49  
... ... @@ -56,15 +56,15 @@
56 56  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.
57 57  
58 58  
59 -== 2.2  Point To Mult-Point ==
63 +== **2.2  Point To Mult-Point ** ==
60 60  
61 -=== 2.2.1 Overview ===
65 +=== **2.2.1 Overview** ===
62 62  
63 63  
64 64  [[image:1654152390874-192.png]]
65 65  
66 66  
67 -=== 2.2.2  Configure ===
71 +=== **2.2.2  Configure** ===
68 68  
69 69  
70 70  (% style="color:blue" %)**Configuration of the TX group:**
... ... @@ -106,7 +106,7 @@
106 106  AT+RXCHS=868700000
107 107  
108 108  
109 -=== 2.2.3 Serial port display ===
113 +=== **2.2.3 Serial port display** ===
110 110  
111 111  
112 112  [[image:image-20220602144747-1.png]]
... ... @@ -114,13 +114,12 @@
114 114  
115 115  [[image:image-20220602144747-2.png]]
116 116  
117 -
118 118  (((
119 119  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.
120 120  )))
121 121  
122 122  
123 -== 2.3 AT command ==
126 +== **2.3 AT command** ==
124 124  
125 125  
126 126  (((
... ... @@ -222,8 +222,9 @@
222 222  )))
223 223  
224 224  
228 +
225 225  (((
226 -(% style="color:blue" %)**Example 1:**
230 +(% style="color:#4f81bd" %)**Example 1:**
227 227  )))
228 228  
229 229  (((
... ... @@ -231,6 +231,7 @@
231 231  )))
232 232  
233 233  
238 +
234 234  (((
235 235  (% style="color:blue" %)**Example 2: **
236 236  )))
... ... @@ -244,23 +244,23 @@
244 244  )))
245 245  
246 246  (((
247 -**a=0:** falling edge;
252 +a=0: falling edge;
248 248  )))
249 249  
250 250  (((
251 -**a=1: **rising edge;
256 +a=1: rising edge;
252 252  )))
253 253  
254 254  (((
255 -**a=2:** falling edge or rising edge;
260 +a=2: falling edge or rising edge;
256 256  )))
257 257  
258 258  (((
259 -**b:**  triggering time in milliseconds.
264 +b:  triggering time in milliseconds.
260 260  )))
261 261  
262 262  (((
263 -**AT+TRIGx=2,50**  Falling edge or rising edge trigger, and the trigger time exceeds 50ms.
268 +AT+TRIGx=2,50  Falling edge or rising edge trigger, and the trigger time exceeds 50ms.
264 264  )))
265 265  
266 266  
... ... @@ -288,12 +288,12 @@
288 288  
289 289  )))
290 290  
291 -(% border="1" style="background-color:#f7faff; color:black; width:690px" %)
296 +(% border="1" style="background-color:#f7faff; color:black; width:706px" %)
292 292  |=(% style="width: 102px;" %)(((
293 293  Maps value
294 294  )))|=(% style="width: 331px;" %)(((
295 295  DIx to DOx
296 -)))|=(% style="width: 251px;" %)(((
301 +)))|=(% style="width: 268px;" %)(((
297 297  DIx to ROx
298 298  )))
299 299  |(% style="width:102px" %)(((
... ... @@ -300,7 +300,7 @@
300 300  0
301 301  )))|(% style="width:331px" %)(((
302 302  No Action
303 -)))|(% style="width:251px" %)(((
308 +)))|(% style="width:268px" %)(((
304 304  No Action
305 305  )))
306 306  |(% style="width:102px" %)(((
... ... @@ -307,7 +307,7 @@
307 307  1
308 308  )))|(% style="width:331px" %)(((
309 309  If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level
310 -)))|(% style="width:251px" %)(((
315 +)))|(% style="width:268px" %)(((
311 311  (((
312 312  If DIx is high, control ROx to close,
313 313  )))
... ... @@ -320,7 +320,7 @@
320 320  2
321 321  )))|(% style="width:331px" %)(((
322 322  If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level
323 -)))|(% style="width:251px" %)(((
328 +)))|(% style="width:268px" %)(((
324 324  (((
325 325  If DIx is high, control ROx to open,
326 326  )))
... ... @@ -333,13 +333,11 @@
333 333  3
334 334  )))|(% style="width:331px" %)(((
335 335  DOx state flip
336 -)))|(% style="width:251px" %)(((
341 +)))|(% style="width:268px" %)(((
337 337  ROx state flip
338 338  )))
339 339  
340 340  (((
341 -
342 -
343 343  (% style="color:blue" %)**Example 4: **
344 344  )))
345 345  
... ... @@ -351,10 +351,12 @@
351 351  **AT+GROUPMOD=0,aa**  Set the TX group that controls the number of aa (The maximum value of aa is 8)
352 352  )))
353 353  
357 +
354 354  (((
355 355  **AT+GROUPMOD=1,bb**  Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8)
356 356  )))
357 357  
362 +
358 358  (((
359 359  **AT+GROUPMOD=0,2**  Set to control the TX group of the two RX groups
360 360  )))
... ... @@ -368,189 +368,183 @@
368 368  )))
369 369  
370 370  
371 -=== 2.3.1 TRIG command is configured in the transmit LT. (LT1)(Since firmware 1.3.2) ===
376 +=== 2.3.1 TRIG command is configured in the transmit LT. (LT1)(Since firmware 1.3) ===
372 372  
373 373  
374 -**AT+TRIGx=a          **Trigger transmit directly without triggering time
379 +**AT+TRIGx=a     **Trigger transmit directly without triggering time
375 375  
376 -**AT+TRIGx=a,b**  Trigger transmit with triggering time threshold
381 +**AT+TRIGx=a,b**  Trigger transmit with triggering time threshold
377 377  
378 -**AT+TRIGx=a,b,c    **Trigger transmit with triggering time threshold, and continue to transmit every xx seconds if DI status no change.
383 +**AT+TRIGx=a,b,c **Trigger transmit with triggering time threshold, and continue to transmit every xx seconds if DI status no change.
379 379  
380 380  
381 -**a=0:** falling edge;
386 +a=0: falling edge;
382 382  
383 -**a=1:** rising edge;
388 +a=1: rising edge;
384 384  
385 -**a=2:** falling edge or rising edge;
390 +a=2: falling edge or rising edge;
386 386  
387 -**b:**  triggering time in milliseconds.
392 +b:  triggering time in milliseconds.
388 388  
389 -**c:** transmit interval
394 +c: transmit interval
390 390  
391 391  
392 -(% style="color:blue" %)**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)
397 +**(% style="color:blue" %)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)
393 393  
394 -**Command:**
399 +Command:
395 395  
396 -**AT+TRIG1=2,50**  Falling edge or rising edge trigger, and the trigger time should exceed 50ms.
401 +AT+TRIG1=2,50  Falling edge or rising edge trigger, and the trigger time should exceed 50ms.
397 397  
398 398  
399 -(% style="color:blue" %)**Use Case 2:  **(%%)Sync LT2 RO / DO status with LT1 every minute.
404 +**(% style="color:blue" %)Use Case 2: **(%%)Sync LT2 RO / DO status with LT1 every minute.
400 400  
401 -**Command:**
406 +Command:
402 402  
403 -**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. After power off, power on, LT1 will send trigger without falling/rising edge, so the DI changes during power off will be sync as well.
408 +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.
404 404  
405 405  
406 -=== 2.3.2 RO/DO is configured in the receiver LT (LT2)(Since firmware 1.3.2) ===
411 +=== 2.3.2 RO/DO is configured in the receiver LT (LT2)(Since firmware 1.3) ===
407 407  
413 +AT+DI1TODO1= maps value[,latch time]
408 408  
409 -AT+DI1TODO1= maps value[,latch time, timeout_state]
415 +AT+DI1TORO1= maps value[,latch time]
410 410  
411 -AT+DI1TORO1= maps value[,latch time, timeout_state]
417 +AT+DI2TODO2= maps value[,latch time]
412 412  
413 -AT+DI2TODO2= maps value[,latch time, timeout_state]
419 +AT+DI2TORO2= maps value[,latch time]
414 414  
415 -AT+DI2TORO2= maps value[,latch time, timeout_state]
416 416  
417 -
418 -(% border="1" style="background-color:#f7faff; color:black; width:774px" %)
419 -|(% style="width:105px" %) **Maps value**|(% style="width:415px" %)**DIx to DOx**|(% style="width:249px" %)**DIx to ROx**
420 -|(% style="width:105px" %)0|(% style="width:415px" %)No Action|(% style="width:249px" %)No Action
421 -|(% style="width:105px" %)1|(% style="width:415px" %)If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(% style="width:249px" %)(((
422 +(% border="1" style="background-color:#f7faff; color:black; width:706px" %)
423 +| **Maps value**|DIx to DOx|DIx to ROx
424 +|0|No Action|No Action
425 +|1|If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(((
422 422  If DIx is high, control ROx to close,
423 423  
424 424  if DIx is low, control ROx to open
425 425  )))
426 -|(% style="width:105px" %)2|(% style="width:415px" %)If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(% style="width:249px" %)(((
430 +|2|If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(((
427 427  If DIx is high, control ROx to open,
428 428  
429 429  if DIx is low, control ROx to close
430 430  )))
431 -|(% style="width:105px" %)3|(% style="width:415px" %)DOx state flip|(% style="width:249px" %)ROx state flip
435 +|3|DOx state flip|ROx state flip
432 432  
433 -**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.
437 +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.
434 434  
435 435  
436 -**Timeout_State**:
440 +**(% style="color:blue" %)Case1**:
437 437  
438 -0: **No change** after timeout
442 +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.
439 439  
440 -1: Change to **DO:0** or **RO: Open** after timeout
441 441  
442 -2: Change to **DO:1** or **RO: Close** after timeout
445 +**(% style="color:blue" %)Case2**:
443 443  
444 -3: Change **back to state** before last trigger arrive.
447 +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.
445 445  
446 446  
447 -(% style="color:blue" %)**Case1**:
448 -
449 -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.
450 -
451 -
452 -(% style="color:blue" %)**Case2**:
453 -
454 -AT+DI1TODO1=1,60,1  ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, DO1 will keep the status 60 seconds and then change to open.
455 -
456 -
457 457  === 2.3.3 Save the RO/DO status during power off(Since firmware 1.3) ===
458 458  
459 459  
460 460  Enable/Disbale retain Digital Output/Relay Output after power off / Power On
461 461  
462 -**AT+DOROSAVE=0**  ~/~/ Disable Retain after power off/on
455 +AT+DOROSAVE=0 ~/~/ Disable Retain after power off/on
463 463  
464 -**AT+DOROSAVE=1**  ~/~/ Enable Retain after power off/on
457 +AT+DOROSAVE=1 ~/~/ Enable Retain after power off/on
465 465  
466 -**AT+DOROSAVE=2,a,b,c,d**  ~/~/ set DO/RO port to default state after power on.
459 +AT+DOROSAVE=2,a,b,c,d ~/~/ set DO/RO port to default state after power on.
467 467  
468 -**a: **for DO1
461 +a: for DO1
469 469  
470 -**b:** for DO2
463 +b: for DO2
471 471  
472 -**c: **for RO1
465 +c: for RO1
473 473  
474 -**d:** for RO2.
467 +d: for RO2.
475 475  
469 +Example:
476 476  
477 -**Example:**
471 +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.
478 478  
479 -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.
480 480  
481 -
482 482  === 2.3.4 Control Sleep status.(Since firmware 1.3) ===
483 483  
484 -
485 485  DI2 can be used to set LT into sleep mode.
486 486  
487 -**AT+DI2SLEEP=1**  ~/~/  Enable DI2 as Sleep pin
478 +AT+DI2SLEEP=1 ~/~/Enable DI2 as Sleep pin
488 488  
489 -**AT+DI2SLEEP=0**  ~/~/  Disable DI2 as Sleep pin
480 +AT+DI2SLEEP=0 ~/~/Disable DI2 as Sleep pin
490 490  
491 491  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.
492 492  
493 -In sleep mode, DORO will keep its initial state if AT+DOROSAVE=2, otherwise DORO will be in OFF state
494 494  
485 +== **2.4 Data Format** ==
495 495  
496 -== 2.4 Data Format ==
497 497  
498 -
499 499  (((
500 500  8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum
501 501  )))
502 502  
503 503  (((
504 -(% style="color:blue" %)**Payload:Payload triggered by TDC or DI**
493 +
505 505  )))
506 506  
507 -(% border="1" style="background-color:#f7faff; color:black; width:825px" %)
508 -|=(% style="width: 102px;" %)(((
496 +(((
497 +(% style="color:blue" %)**Payload:**
498 +)))
499 +
500 +(% border="1" style="background-color:#f7faff; color:black; width:938px" %)
501 +|=(% style="width: 123px;" %)(((
509 509  **Size (bytes)**
510 -)))|=(% style="width: 74px;" %)(((
503 +)))|=(% style="width: 107px;" %)(((
511 511  1
512 -)))|=(% style="width: 72px;" %)(((
505 +)))|=(% style="width: 107px;" %)(((
513 513  1
514 -)))|=(% style="width: 47px;" %)(((
507 +)))|=(% style="width: 107px;" %)(((
515 515  1
516 -)))|=(% style="width: 83px;" %)(((
509 +)))|=(% style="width: 107px;" %)(((
517 517  1
518 -)))|=(% style="width: 90px;" %)(((
511 +)))|=(% style="width: 107px;" %)(((
519 519  1
520 -)))|=(% style="width: 92px;" %)(((
513 +)))|=(% style="width: 107px;" %)(((
521 521  1
522 -)))|=(% style="width: 78px;" %)(((
515 +)))|=(% style="width: 107px;" %)(((
523 523  1
524 -)))|=(% style="width: 91px;" %)(((
517 +)))|=(% style="width: 107px;" %)(((
525 525  1
526 -)))|=(% style="width: 91px;" %)(((
519 +)))|=(% style="width: 107px;" %)(((
527 527  1
528 528  )))
529 -|(% style="width:102px" %)(((
522 +|(% style="width:123px" %)(((
530 530  **Value**
531 -)))|(% style="width:74px" %)(((
524 +)))|(% style="width:38px" %)(((
532 532  address
533 -)))|(% style="width:72px" %)(((
526 +)))|(% style="width:70px" %)(((
534 534  request
535 -)))|(% style="width:47px" %)(((
528 +)))|(% style="width:52px" %)(((
536 536  ACK
537 -)))|(% style="width:83px" %)(((
530 +)))|(% style="width:127px" %)(((
538 538  (((
539 539  DI1&
533 +)))
534 +
535 +(((
540 540  DI1 level
541 541  )))
542 -)))|(% style="width:90px" %)(((
538 +)))|(% style="width:101px" %)(((
543 543  DI1TODO1
544 -)))|(% style="width:92px" %)(((
540 +)))|(% style="width:91px" %)(((
545 545  DI1TORO1
546 -)))|(% style="width:78px" %)(((
542 +)))|(% style="width:111px" %)(((
547 547  (((
548 548  DI2&
549 -DI2 leve
550 550  )))
551 -)))|(% style="width:91px" %)(((
546 +
547 +(((
548 +DI2 level
549 +)))
550 +)))|(% style="width:105px" %)(((
552 552  DI2TODO2
553 -)))|(% style="width:91px" %)(((
552 +)))|(% style="width:106px" %)(((
554 554  DI2TORO2
555 555  )))
556 556  
... ... @@ -597,56 +597,62 @@
597 597  (((
598 598  
599 599  
600 -(% style="color:blue" %)**Payload:（Since firmware 1.3）The receiver replies to the sent packet**
599 +(% style="color:#4f81bd" %)**Payload:（Since firmware 1.3）The receiver replies to the sent packet**
601 601  )))
602 602  
603 -(% border="1" style="background-color:#f7faff; color:black; width:822px" %)
604 -|=(% style="width: 97px;" %)(((
605 -**Size(bytes)**
606 -)))|=(% style="width: 71px;" %)(((
602 +(% border="1" style="background-color:#f7faff; color:black; width:938px" %)
603 +|=(% style="width: 123px;" %)(((
604 +**Size (bytes)**
605 +)))|=(% style="width: 107px;" %)(((
607 607  1
608 -)))|=(% style="width: 70px;" %)(((
607 +)))|=(% style="width: 107px;" %)(((
609 609  1
610 -)))|=(% style="width: 48px;" %)(((
609 +)))|=(% style="width: 107px;" %)(((
611 611  1
612 -)))|=(% style="width: 85px;" %)(((
611 +)))|=(% style="width: 107px;" %)(((
613 613  1
614 -)))|=(% style="width: 90px;" %)(((
613 +)))|=(% style="width: 107px;" %)(((
615 615  1
616 -)))|=(% style="width: 88px;" %)(((
615 +)))|=(% style="width: 107px;" %)(((
617 617  1
618 -)))|=(% style="width: 86px;" %)(((
617 +)))|=(% style="width: 107px;" %)(((
619 619  1
620 -)))|=(% style="width: 92px;" %)(((
619 +)))|=(% style="width: 107px;" %)(((
621 621  1
622 -)))|=(% style="width: 92px;" %)(((
621 +)))|=(% style="width: 107px;" %)(((
623 623  1
624 624  )))
625 -|(% style="width:97px" %)(((
624 +|(% style="width:123px" %)(((
626 626  **Value**
627 -)))|(% style="width:71px" %)(((
626 +)))|(% style="width:38px" %)(((
628 628  address
629 629  )))|(% style="width:70px" %)(((
630 630  request
631 -)))|(% style="width:48px" %)(((
630 +)))|(% style="width:52px" %)(((
632 632  ACK
633 -)))|(% style="width:85px" %)(((
632 +)))|(% style="width:127px" %)(((
634 634  (((
635 -DOI1&
636 -DOI2 level
634 +DO1&
637 637  )))
638 -)))|(% style="width:90px" %)(((
636 +
637 +(((
638 +DO1 level
639 +)))
640 +)))|(% style="width:101px" %)(((
639 639  DI1TODO1
640 -)))|(% style="width:88px" %)(((
642 +)))|(% style="width:91px" %)(((
641 641  DI1TORO1
642 -)))|(% style="width:86px" %)(((
644 +)))|(% style="width:111px" %)(((
643 643  (((
644 644  RO2&
647 +)))
648 +
649 +(((
645 645  RO2 level
646 646  )))
647 -)))|(% style="width:92px" %)(((
652 +)))|(% style="width:105px" %)(((
648 648  DI2TODO2
649 -)))|(% style="width:92px" %)(((
654 +)))|(% style="width:106px" %)(((
650 650  DI2TORO2
651 651  )))
652 652  
... ... @@ -664,7 +664,7 @@
664 664  
665 665  (((
666 666  (((
667 -(% style="color:#037691" %)**The fourth byte**(%%)**:**  the high four bits are 1 to represent DOI1, and the low four bits are the level of DOI2 when the interrupt is triggered.
672 +(% 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.
668 668  )))
669 669  )))
670 670  

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