Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 77.98 >
edited by Xiaoling
on 2022/06/10 09:32
To version < 82.10 >
edited by Xiaoling
on 2022/06/20 11:41
>
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -19,6 +19,8 @@
19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
22 +
23 +
22 22  The Dragino (% style="color:blue" %)**LT series I/O Modules**(%%) are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as:** (% style="color:blue" %)analog current Input, analog voltage input(%%)**(% style="color:blue" %), **relay output**, **digital input**(%%) and (% style="color:blue" %)**digital output**(%%) etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
23 23  )))
24 24  
... ... @@ -48,6 +48,7 @@
48 48  
49 49  )))
50 50  
53 +
51 51  == 1.2  Specifications ==
52 52  
53 53  (((
... ... @@ -76,6 +76,8 @@
76 76  )))
77 77  
78 78  (((
82 +
83 +
79 79  **Interface for Model: LT22222-L:**
80 80  )))
81 81  
... ... @@ -99,6 +99,8 @@
99 99  )))
100 100  
101 101  (((
107 +
108 +
102 102  **LoRa Spec:**
103 103  )))
104 104  
... ... @@ -159,6 +159,8 @@
159 159  * (((
160 160  Packet engine up to 256 bytes with CRC.
161 161  
169 +
170 +
162 162  
163 163  )))
164 164  
... ... @@ -172,6 +172,8 @@
172 172  * Firmware upgradable via program port
173 173  * Counting
174 174  
184 +
185 +
175 175  == 1.4  Applications ==
176 176  
177 177  * Smart Buildings & Home Automation
... ... @@ -181,6 +181,8 @@
181 181  * Smart Cities
182 182  * Smart Factory
183 183  
195 +
196 +
184 184  == 1.5 Hardware Variants ==
185 185  
186 186  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -194,6 +194,7 @@
194 194  * 1 x Counting Port
195 195  )))
196 196  
210 +
197 197  = 2. Power ON Device =
198 198  
199 199  The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
... ... @@ -216,12 +216,9 @@
216 216  
217 217  (((
218 218  In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
219 -
220 -
221 221  )))
222 222  
223 223  
224 -
225 225  == 3.2 Example to join LoRaWAN network ==
226 226  
227 227  (((
... ... @@ -230,12 +230,13 @@
230 230  
231 231  [[image:image-20220523172350-1.png||height="266" width="864"]]
232 232  
244 +
233 233  (((
234 234  The LG308 is already set to connect to [[TTN network >>url:https://www.thethingsnetwork.org/]]. So what we need to do now is only configure register this device to TTN:
235 235  )))
236 236  
237 237  (((
238 -**Step 1**: Create a device in TTN with the OTAA keys from LT IO controller.
250 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LT IO controller.
239 239  )))
240 240  
241 241  (((
... ... @@ -244,6 +244,7 @@
244 244  
245 245  [[image:1653297924498-393.png]]
246 246  
259 +
247 247  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
248 248  
249 249  Add APP EUI in the application.
... ... @@ -257,7 +257,7 @@
257 257  
258 258  
259 259  (((
260 -**Step 2**: Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
273 +(% style="color:blue" %)**Step 2**(%%): Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
261 261  )))
262 262  
263 263  [[image:1653298044601-602.png||height="405" width="709"]]
... ... @@ -276,6 +276,7 @@
276 276  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
277 277  
278 278  
292 +
279 279  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
280 280  
281 281  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -314,8 +314,6 @@
314 314  * [1] RO1 relay channel is close and the RO1 LED is ON.
315 315  * [0] RO2 relay channel is open and RO2 LED is OFF;
316 316  
317 -
318 -
319 319  **LT22222-L:**
320 320  
321 321  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -369,12 +369,7 @@
369 369  (((
370 370  (((
371 371  **AT+MOD=2**
372 -)))
373 -)))
374 374  
375 -(% class="box infomessage" %)
376 -(((
377 -(((
378 378  **ATZ**
379 379  )))
380 380  )))
... ... @@ -393,40 +393,15 @@
393 393  (((
394 394  (((
395 395  **AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
396 -)))
397 -)))
398 398  
399 -(% class="box infomessage" %)
400 -(((
401 -(((
402 402  **AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
403 -)))
404 -)))
405 405  
406 -(% class="box infomessage" %)
407 -(((
408 -(((
409 409  **AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) **
410 -)))
411 -)))
412 412  
413 -(% class="box infomessage" %)
414 -(((
415 -(((
416 416  **AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) **
417 -)))
418 -)))
419 419  
420 -(% class="box infomessage" %)
421 -(((
422 -(((
423 423  **AT+SETCNT=1,60   (Set COUNT1 value to 60)**
424 -)))
425 -)))
426 426  
427 -(% class="box infomessage" %)
428 -(((
429 -(((
430 430  **AT+SETCNT=2,60   (Set COUNT2 value to 60)**
431 431  )))
432 432  )))
... ... @@ -461,12 +461,7 @@
461 461  (((
462 462  (((
463 463  **AT+MOD=3**
464 -)))
465 -)))
466 466  
467 -(% class="box infomessage" %)
468 -(((
469 -(((
470 470  **ATZ**
471 471  )))
472 472  )))
... ... @@ -473,11 +473,10 @@
473 473  
474 474  (((
475 475  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
476 -
477 -
478 478  )))
479 479  
480 480  
456 +
481 481  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
482 482  
483 483  
... ... @@ -512,20 +512,13 @@
512 512  (((
513 513  (((
514 514  **AT+MOD=4**
515 -)))
516 -)))
517 517  
518 -(% class="box infomessage" %)
519 -(((
520 -(((
521 521  **ATZ**
522 522  )))
523 523  )))
524 524  
525 -(((
526 -
527 -)))
528 528  
497 +
529 529  (((
530 530  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
531 531  )))
... ... @@ -539,33 +539,17 @@
539 539  (% class="box infomessage" %)
540 540  (((
541 541  (((
542 -**AT+SETCNT=3,60   (set AVI Count to 60)**
543 -)))
544 -)))
511 +(% style="color:blue" %)**AT+SETCNT=3,60**(%%)**   (set AVI Count to 60)**
545 545  
546 -(% class="box infomessage" %)
547 -(((
548 -(((
549 -**AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
550 -)))
551 -)))
513 +(% style="color:blue" %)**AT+VOLMAX=20000**(%%)**   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
552 552  
553 -(% class="box infomessage" %)
554 -(((
555 -(((
556 -**AT+VOLMAX=20000,0   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
557 -)))
558 -)))
515 +(% style="color:blue" %)**AT+VOLMAX=20000,0**(%%)**   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
559 559  
560 -(% class="box infomessage" %)
561 -(((
562 -(((
563 -**AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
517 +(% style="color:blue" %)**AT+VOLMAX=20000,1**(%%)**   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
564 564  )))
565 565  )))
566 566  
567 567  
568 -
569 569  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
570 570  
571 571  
... ... @@ -599,12 +599,7 @@
599 599  (((
600 600  (((
601 601  **AT+MOD=5**
602 -)))
603 -)))
604 604  
605 -(% class="box infomessage" %)
606 -(((
607 -(((
608 608  **ATZ**
609 609  )))
610 610  )))
... ... @@ -625,16 +625,13 @@
625 625  * **AT+MOD=1 ** **~-~->** The normal working mode
626 626  * **AT+ADDMOD6=1**   **~-~->** Enable trigger
627 627  
628 -
629 629  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
630 630  
631 631  1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN (% style="color:#4f81bd" %)**unconfirmed**(%%) data type
632 632  1. Trigger uplink when meet the trigger condition. LT will sent two packets in this case, the first uplink use payload specify in this mod (mod=6), the second packets use the normal mod payload(MOD=1 for above settings). Both Uplinks use LoRaWAN (% style="color:#4f81bd" %)**CONFIRMED data type.**
633 633  
581 +(% style="color:#037691" %)**AT Command to set Trigger Condition**:
634 634  
635 -
636 -**AT Command to set Trigger Condition**:
637 -
638 638  (% style="color:#4f81bd" %)**Trigger base on voltage**:
639 639  
640 640  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
... ... @@ -669,7 +669,7 @@
669 669  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
670 670  
671 671  
672 -**Downlink Command to set Trigger Condition:**
617 +(% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
673 673  
674 674  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
675 675  
... ... @@ -712,8 +712,6 @@
712 712  
713 713  * Each bits shows if the corresponding trigger has been configured.
714 714  
715 -
716 -
717 717  **Example:**
718 718  
719 719  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
... ... @@ -725,8 +725,6 @@
725 725  
726 726  * Each bits shows which status has been trigger on this uplink.
727 727  
728 -
729 -
730 730  **Example:**
731 731  
732 732  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
... ... @@ -738,8 +738,6 @@
738 738  
739 739  * Each bits shows which status has been trigger on this uplink.
740 740  
741 -
742 -
743 743  **Example:**
744 744  
745 745  00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
... ... @@ -768,7 +768,6 @@
768 768  )))
769 769  
770 770  
771 -
772 772  == 3.4 ​Configure LT via AT or Downlink ==
773 773  
774 774  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
... ... @@ -795,7 +795,7 @@
795 795  
796 796  Set device uplink interval.
797 797  
798 -* AT Command:
736 +* (% style="color:#037691" %)**AT Command:**
799 799  
800 800  (% class="box infomessage" %)
801 801  (((
... ... @@ -805,7 +805,7 @@
805 805  **Example: **AT+TDC=30000. Means set interval to 30 seconds
806 806  
807 807  
808 -* Downlink Payload (prefix 0x01):
746 +* (% style="color:#037691" %)**Downlink Payload (prefix 0x01):**
809 809  
810 810  (% class="box infomessage" %)
811 811  (((
... ... @@ -818,7 +818,7 @@
818 818  
819 819  Set work mode.
820 820  
821 -* AT Command:
759 +* (% style="color:#037691" %)**AT Command:**
822 822  
823 823  (% class="box infomessage" %)
824 824  (((
... ... @@ -828,7 +828,7 @@
828 828  **Example**: AT+MOD=2. Set work mode to Double DI counting mode
829 829  
830 830  
831 -* Downlink Payload (prefix 0x0A):
769 +* (% style="color:#037691" %)**Downlink Payload (prefix 0x0A):**
832 832  
833 833  (% class="box infomessage" %)
834 834  (((
... ... @@ -839,12 +839,12 @@
839 839  
840 840  ==== 3.4.2.3 Poll an uplink ====
841 841  
842 -* AT Command:
780 +* (% style="color:#037691" %)AT Command:
843 843  
844 844  There is no AT Command to poll uplink
845 845  
846 846  
847 -* Downlink Payload (prefix 0x08):
785 +* (% style="color:#037691" %)Downlink Payload (prefix 0x08):
848 848  
849 849  (% class="box infomessage" %)
850 850  (((
... ... @@ -859,7 +859,7 @@
859 859  
860 860  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
861 861  
862 -* AT Command:
800 +* (% style="color:#037691" %)AT Command:
863 863  
864 864  (% class="box infomessage" %)
865 865  (((
... ... @@ -871,7 +871,7 @@
871 871  0: Disable Trigger Mode
872 872  
873 873  
874 -* Downlink Payload (prefix 0x0A 06):
812 +* (% style="color:#037691" %)Downlink Payload (prefix 0x0A 06):
875 875  
876 876  (% class="box infomessage" %)
877 877  (((
... ... @@ -884,12 +884,12 @@
884 884  
885 885  Poll trigger settings,
886 886  
887 -* AT Command:
825 +* (% style="color:#037691" %)AT Command:
888 888  
889 889  There is no AT Command for this feature.
890 890  
891 891  
892 -* Downlink Payload (prefix 0x AB 06):
830 +* (% style="color:#037691" %)Downlink Payload (prefix 0x AB 06):
893 893  
894 894  (% class="box infomessage" %)
895 895  (((
... ... @@ -902,7 +902,7 @@
902 902  
903 903  Enable Disable DI1/DI2/DI2 as trigger,
904 904  
905 -* AT Command:
843 +* (% style="color:#037691" %)AT Command:
906 906  
907 907  (% class="box infomessage" %)
908 908  (((
... ... @@ -914,7 +914,7 @@
914 914  
915 915  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
916 916  
917 -* Downlink Payload (prefix 0xAA 02):
855 +* (% style="color:#037691" %)Downlink Payload (prefix 0xAA 02):
918 918  
919 919  (% class="box infomessage" %)
920 920  (((
... ... @@ -927,7 +927,7 @@
927 927  
928 928  Set DI1 or DI3(for LT-33222-L) trigger.
929 929  
930 -* AT Command:
868 +* (% style="color:#037691" %)AT Command:
931 931  
932 932  (% class="box infomessage" %)
933 933  (((
... ... @@ -944,7 +944,7 @@
944 944  AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms )
945 945  
946 946  
947 -* Downlink Payload (prefix 0x09 01 ):
885 +* (% style="color:#037691" %)Downlink Payload (prefix 0x09 01 ):
948 948  
949 949  (% class="box infomessage" %)
950 950  (((
... ... @@ -957,7 +957,7 @@
957 957  
958 958  Set DI2 trigger.
959 959  
960 -* AT Command:
898 +* (% style="color:#037691" %)AT Command:
961 961  
962 962  (% class="box infomessage" %)
963 963  (((
... ... @@ -974,7 +974,7 @@
974 974  AT+TRIG2=0,100(set DI1 port to trigger on low level, valid signal is 100ms )
975 975  
976 976  
977 -* Downlink Payload (prefix 0x09 02 ):
915 +* (% style="color:#037691" %)Downlink Payload (prefix 0x09 02 ):
978 978  
979 979  (% class="box infomessage" %)
980 980  (((
... ... @@ -987,7 +987,7 @@
987 987  
988 988  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
989 989  
990 -* AT Command:
928 +* (% style="color:#037691" %)AT Command:
991 991  
992 992  (% class="box infomessage" %)
993 993  (((
... ... @@ -995,7 +995,7 @@
995 995  )))
996 996  
997 997  
998 -* Downlink Payload (prefix 0xAA 01 ):
936 +* (% style="color:#037691" %)Downlink Payload (prefix 0xAA 01 ):
999 999  
1000 1000  (% class="box infomessage" %)
1001 1001  (((
... ... @@ -1008,7 +1008,7 @@
1008 1008  
1009 1009  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
1010 1010  
1011 -* AT Command:
949 +* (% style="color:#037691" %)AT Command:
1012 1012  
1013 1013  (% class="box infomessage" %)
1014 1014  (((
... ... @@ -1016,7 +1016,7 @@
1016 1016  )))
1017 1017  
1018 1018  
1019 -* Downlink Payload (prefix 0xAA 00 ):
957 +* (% style="color:#037691" %)Downlink Payload (prefix 0xAA 00 ):
1020 1020  
1021 1021  (% class="box infomessage" %)
1022 1022  (((
... ... @@ -1029,7 +1029,7 @@
1029 1029  
1030 1030  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
1031 1031  
1032 -* AT Command:
970 +* (% style="color:#037691" %)AT Command:
1033 1033  
1034 1034  (% class="box infomessage" %)
1035 1035  (((
... ... @@ -1037,7 +1037,7 @@
1037 1037  )))
1038 1038  
1039 1039  
1040 -* Downlink Payload (prefix 0xAC ):
978 +* (% style="color:#037691" %)Downlink Payload (prefix 0xAC ):
1041 1041  
1042 1042  (% class="box infomessage" %)
1043 1043  (((
... ... @@ -1048,12 +1048,12 @@
1048 1048  
1049 1049  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
1050 1050  
1051 -* AT Command:
989 +* (% style="color:#037691" %)AT Command:
1052 1052  
1053 1053  There is no AT Command to control Digital Output
1054 1054  
1055 1055  
1056 -* Downlink Payload (prefix 0x02):
994 +* (% style="color:#037691" %)Downlink Payload (prefix 0x02):
1057 1057  
1058 1058  (% class="box infomessage" %)
1059 1059  (((
... ... @@ -1082,12 +1082,12 @@
1082 1082  
1083 1083  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
1084 1084  
1085 -* AT Command:
1023 +* (% style="color:#037691" %)AT Command:
1086 1086  
1087 1087  There is no AT Command to control Digital Output
1088 1088  
1089 1089  
1090 -* Downlink Payload (prefix 0xA9):
1028 +* (% style="color:#037691" %)Downlink Payload (prefix 0xA9):
1091 1091  
1092 1092  (% class="box infomessage" %)
1093 1093  (((
... ... @@ -1151,12 +1151,12 @@
1151 1151  
1152 1152  ==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1153 1153  
1154 -* AT Command:
1092 +* (% style="color:#037691" %)AT Command:
1155 1155  
1156 1156  There is no AT Command to control Relay Output
1157 1157  
1158 1158  
1159 -* Downlink Payload (prefix 0x03):
1097 +* (% style="color:#037691" %)Downlink Payload (prefix 0x03):
1160 1160  
1161 1161  (% class="box infomessage" %)
1162 1162  (((
... ... @@ -1181,12 +1181,12 @@
1181 1181  
1182 1182  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1183 1183  
1184 -* AT Command:
1122 +* (% style="color:#037691" %)AT Command:
1185 1185  
1186 1186  There is no AT Command to control Relay Output
1187 1187  
1188 1188  
1189 -* Downlink Payload (prefix 0x05):
1127 +* (% style="color:#037691" %)Downlink Payload (prefix 0x05):
1190 1190  
1191 1191  (% class="box infomessage" %)
1192 1192  (((
... ... @@ -1238,7 +1238,7 @@
1238 1238  
1239 1239  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1240 1240  
1241 -* AT Command:
1179 +* (% style="color:#037691" %)AT Command:
1242 1242  
1243 1243  (% class="box infomessage" %)
1244 1244  (((
... ... @@ -1246,7 +1246,7 @@
1246 1246  )))
1247 1247  
1248 1248  
1249 -* Downlink Payload (prefix 0xA5):
1187 +* (% style="color:#037691" %)Downlink Payload (prefix 0xA5):
1250 1250  
1251 1251  (% class="box infomessage" %)
1252 1252  (((
... ... @@ -1257,7 +1257,7 @@
1257 1257  
1258 1258  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1259 1259  
1260 -* AT Command:
1198 +* (% style="color:#037691" %)AT Command:
1261 1261  
1262 1262  (% class="box infomessage" %)
1263 1263  (((
... ... @@ -1273,7 +1273,7 @@
1273 1273  Bb cc dd ee: number to be set
1274 1274  
1275 1275  
1276 -* Downlink Payload (prefix 0xA8):
1214 +* (% style="color:#037691" %)Downlink Payload (prefix 0xA8):
1277 1277  
1278 1278  (% class="box infomessage" %)
1279 1279  (((
... ... @@ -1286,7 +1286,7 @@
1286 1286  
1287 1287  Clear counting for counting mode
1288 1288  
1289 -* AT Command:
1227 +* (% style="color:#037691" %)AT Command:
1290 1290  
1291 1291  (% class="box infomessage" %)
1292 1292  (((
... ... @@ -1293,7 +1293,7 @@
1293 1293  **AT+CLRCOUNT ~/~/ clear all counting**
1294 1294  )))
1295 1295  
1296 -* Downlink Payload (prefix 0xA6):
1234 +* (% style="color:#037691" %)Downlink Payload (prefix 0xA6):
1297 1297  
1298 1298  (% class="box infomessage" %)
1299 1299  (((
... ... @@ -1304,7 +1304,7 @@
1304 1304  
1305 1305  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1306 1306  
1307 -* AT Command:
1245 +* (% style="color:#037691" %)AT Command:
1308 1308  
1309 1309  (% class="box infomessage" %)
1310 1310  (((
... ... @@ -1311,7 +1311,7 @@
1311 1311  **AT+COUTIME=60  ~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)**
1312 1312  )))
1313 1313  
1314 -* Downlink Payload (prefix 0xA7):
1252 +* (% style="color:#037691" %)Downlink Payload (prefix 0xA7):
1315 1315  
1316 1316  (% class="box infomessage" %)
1317 1317  (((
... ... @@ -2014,8 +2014,16 @@
2014 2014  )))
2015 2015  
2016 2016  (((
2017 -
1955 +== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2018 2018  
1957 +If the device is not shut down, but directly powered off.
1958 +
1959 +It will default that this is a power-off state.
1960 +
1961 +In modes 2 to 5, DO RO status and pulse count are saved in flash.
1962 +
1963 +After restart, the status before power failure will be read from flash.
1964 +
2019 2019  = 6. Trouble Shooting =
2020 2020  )))
2021 2021  

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