Last modified by Saxer Lin on 2025/04/15 17:24
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From version < 82.2 >
edited by Xiaoling
on 2022/06/20 11:16
To version < 77.79 >
edited by Xiaoling
on 2022/06/10 09:25
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... ... @@ -19,8 +19,6 @@
19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
22 -
23 -
24 24  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.
25 25  )))
26 26  
... ... @@ -50,7 +50,6 @@
50 50  
51 51  )))
52 52  
53 -
54 54  == 1.2  Specifications ==
55 55  
56 56  (((
... ... @@ -79,8 +79,6 @@
79 79  )))
80 80  
81 81  (((
82 -
83 -
84 84  **Interface for Model: LT22222-L:**
85 85  )))
86 86  
... ... @@ -104,8 +104,6 @@
104 104  )))
105 105  
106 106  (((
107 -
108 -
109 109  **LoRa Spec:**
110 110  )))
111 111  
... ... @@ -165,6 +165,8 @@
165 165  )))
166 166  * (((
167 167  Packet engine up to 256 bytes with CRC.
161 +
162 +
168 168  )))
169 169  
170 170  == 1.3 Features ==
... ... @@ -221,9 +221,12 @@
221 221  
222 222  (((
223 223  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 +
224 224  )))
225 225  
226 226  
224 +
227 227  == 3.2 Example to join LoRaWAN network ==
228 228  
229 229  (((
... ... @@ -232,13 +232,12 @@
232 232  
233 233  [[image:image-20220523172350-1.png||height="266" width="864"]]
234 234  
235 -
236 236  (((
237 237  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:
238 238  )))
239 239  
240 240  (((
241 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LT IO controller.
238 +**Step 1**: Create a device in TTN with the OTAA keys from LT IO controller.
242 242  )))
243 243  
244 244  (((
... ... @@ -247,7 +247,6 @@
247 247  
248 248  [[image:1653297924498-393.png]]
249 249  
250 -
251 251  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
252 252  
253 253  Add APP EUI in the application.
... ... @@ -261,7 +261,7 @@
261 261  
262 262  
263 263  (((
264 -(% 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.
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.
265 265  )))
266 266  
267 267  [[image:1653298044601-602.png||height="405" width="709"]]
... ... @@ -286,8 +286,6 @@
286 286  [[image:image-20220523174024-3.png]]
287 287  
288 288  (((
289 -
290 -
291 291  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
292 292  )))
293 293  
... ... @@ -301,7 +301,6 @@
301 301  
302 302  For example if payload is: [[image:image-20220523175847-2.png]]
303 303  
304 -
305 305  **The value for the interface is:  **
306 306  
307 307  AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
... ... @@ -334,7 +334,6 @@
334 334  
335 335  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
336 336  
337 -
338 338  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
339 339  
340 340  (((
... ... @@ -343,7 +343,6 @@
343 343  
344 344  [[image:image-20220523180452-3.png]]
345 345  
346 -
347 347  (((
348 348  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
349 349  )))
... ... @@ -359,8 +359,6 @@
359 359  )))
360 360  
361 361  (((
362 -
363 -
364 364  **To use counting mode, please run:**
365 365  )))
366 366  
... ... @@ -379,8 +379,6 @@
379 379  )))
380 380  
381 381  (((
382 -
383 -
384 384  (% style="color:#4f81bd" %)**AT Commands for counting:**
385 385  )))
386 386  
... ... @@ -472,6 +472,8 @@
472 472  
473 473  (((
474 474  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
462 +
463 +
475 475  )))
476 476  
477 477  
... ... @@ -478,7 +478,6 @@
478 478  
479 479  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
480 480  
481 -
482 482  **LT22222-L**: This mode the DI1 is used as a counting pin.
483 483  
484 484  The AVI1 is also used for counting. AVI1 is used to monitor the voltage. It will check the voltage **every 60s**, if voltage is higher or lower than VOLMAX mV, the AVI1 Counting increase 1, so AVI1 counting can be used to measure a machine working hour.
... ... @@ -485,7 +485,6 @@
485 485  
486 486  [[image:image-20220523181903-8.png]]
487 487  
488 -
489 489  (((
490 490  (% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
491 491  )))
... ... @@ -501,8 +501,6 @@
501 501  )))
502 502  
503 503  (((
504 -
505 -
506 506  **To use this mode, please run:**
507 507  )))
508 508  
... ... @@ -529,8 +529,6 @@
529 529  )))
530 530  
531 531  (((
532 -
533 -
534 534  **Plus below command for AVI1 Counting:**
535 535  )))
536 536  
... ... @@ -566,7 +566,6 @@
566 566  
567 567  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
568 568  
569 -
570 570  **LT22222-L**: This mode the DI1 is used as a counting pin.
571 571  
572 572  [[image:image-20220523182334-9.png]]
... ... @@ -615,7 +615,6 @@
615 615  
616 616  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
617 617  
618 -
619 619  (% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
620 620  
621 621  For example, if user has configured below commands:
... ... @@ -623,11 +623,13 @@
623 623  * **AT+MOD=1 ** **~-~->** The normal working mode
624 624  * **AT+ADDMOD6=1**   **~-~->** Enable trigger
625 625  
607 +
626 626  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
627 627  
628 628  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
629 629  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.**
630 630  
613 +
631 631  **AT Command to set Trigger Condition**:
632 632  
633 633  (% style="color:#4f81bd" %)**Trigger base on voltage**:
... ... @@ -641,7 +641,6 @@
641 641  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
642 642  
643 643  
644 -
645 645  (% style="color:#4f81bd" %)**Trigger base on current**:
646 646  
647 647  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -651,7 +651,6 @@
651 651  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
652 652  
653 653  
654 -
655 655  (% style="color:#4f81bd" %)**Trigger base on DI status**:
656 656  
657 657  DI status trigger Flag.
... ... @@ -658,13 +658,12 @@
658 658  
659 659  Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >
660 660  
661 -
662 662  **Example:**
663 663  
664 664  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
665 665  
666 666  
667 -**Downlink Command to set Trigger Condition:**
647 +**Downlink Command to set Trigger Condition**
668 668  
669 669  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
670 670  
... ... @@ -693,7 +693,6 @@
693 693  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
694 694  
695 695  
696 -
697 697  (% style="color:#4f81bd" %)**Trigger Settings Payload Explanation:**
698 698  
699 699  MOD6 Payload : total 11 bytes payload
... ... @@ -707,6 +707,7 @@
707 707  
708 708  * Each bits shows if the corresponding trigger has been configured.
709 709  
689 +
710 710  **Example:**
711 711  
712 712  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
... ... @@ -718,6 +718,7 @@
718 718  
719 719  * Each bits shows which status has been trigger on this uplink.
720 720  
701 +
721 721  **Example:**
722 722  
723 723  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
... ... @@ -729,6 +729,7 @@
729 729  
730 730  * Each bits shows which status has been trigger on this uplink.
731 731  
713 +
732 732  **Example:**
733 733  
734 734  00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
... ... @@ -749,8 +749,6 @@
749 749  === 3.3.7 Payload Decoder ===
750 750  
751 751  (((
752 -
753 -
754 754  **Decoder for TTN/loraserver/ChirpStack**: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/]]
755 755  
756 756  
... ... @@ -757,6 +757,7 @@
757 757  )))
758 758  
759 759  
740 +
760 760  == 3.4 ​Configure LT via AT or Downlink ==
761 761  
762 762  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
... ... @@ -769,6 +769,8 @@
769 769  
770 770  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
771 771  
753 +
754 +
772 772  === 3.4.1 Common Commands ===
773 773  
774 774  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
... ... @@ -2000,16 +2000,8 @@
2000 2000  )))
2001 2001  
2002 2002  (((
2003 -== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
1986 +
2004 2004  
2005 -If the device is not shut down, but directly powered off.
2006 -
2007 -It will default that this is a power-off state.
2008 -
2009 -In modes 2 to 5, DO RO status and pulse count are saved in flash.
2010 -
2011 -After restart, the status before power failure will be read from flash.
2012 -
2013 2013  = 6. Trouble Shooting =
2014 2014  )))
2015 2015  

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