Last modified by Saxer Lin on 2025/04/15 17:24
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From version < 77.99 >
edited by Xiaoling
on 2022/06/10 09:32
To version < 82.3 >
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... ... @@ -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  
... ... @@ -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  
239 +
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.
245 +(% 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  
254 +
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.
268 +(% 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"]]
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275 275  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
276 276  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
277 277  
278 -
279 -
280 280  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
281 281  
282 282  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -315,8 +315,6 @@
315 315  * [1] RO1 relay channel is close and the RO1 LED is ON.
316 316  * [0] RO2 relay channel is open and RO2 LED is OFF;
317 317  
318 -
319 -
320 320  **LT22222-L:**
321 321  
322 322  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -332,8 +332,6 @@
332 332  ** DO1 is high in case there is load between DO1 and V+.
333 333  ** DO1 LED is off in both case
334 334  
335 -
336 -
337 337  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
338 338  
339 339  
... ... @@ -474,11 +474,10 @@
474 474  
475 475  (((
476 476  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
477 -
478 -
479 479  )))
480 480  
481 481  
482 +
482 482  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
483 483  
484 484  
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626 626  * **AT+MOD=1 ** **~-~->** The normal working mode
627 627  * **AT+ADDMOD6=1**   **~-~->** Enable trigger
628 628  
629 -
630 630  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
631 631  
632 632  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
633 633  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.**
634 634  
635 -
636 -
637 637  **AT Command to set Trigger Condition**:
638 638  
639 639  (% style="color:#4f81bd" %)**Trigger base on voltage**:
... ... @@ -713,8 +713,6 @@
713 713  
714 714  * Each bits shows if the corresponding trigger has been configured.
715 715  
716 -
717 -
718 718  **Example:**
719 719  
720 720  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
... ... @@ -726,8 +726,6 @@
726 726  
727 727  * Each bits shows which status has been trigger on this uplink.
728 728  
729 -
730 -
731 731  **Example:**
732 732  
733 733  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
... ... @@ -739,8 +739,6 @@
739 739  
740 740  * Each bits shows which status has been trigger on this uplink.
741 741  
742 -
743 -
744 744  **Example:**
745 745  
746 746  00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
... ... @@ -769,7 +769,6 @@
769 769  )))
770 770  
771 771  
772 -
773 773  == 3.4 ​Configure LT via AT or Downlink ==
774 774  
775 775  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
... ... @@ -782,8 +782,6 @@
782 782  
783 783  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
784 784  
785 -
786 -
787 787  === 3.4.1 Common Commands ===
788 788  
789 789  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]]
... ... @@ -2015,8 +2015,16 @@
2015 2015  )))
2016 2016  
2017 2017  (((
2018 -
2007 +== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2019 2019  
2009 +If the device is not shut down, but directly powered off.
2010 +
2011 +It will default that this is a power-off state.
2012 +
2013 +In modes 2 to 5, DO RO status and pulse count are saved in flash.
2014 +
2015 +After restart, the status before power failure will be read from flash.
2016 +
2020 2020  = 6. Trouble Shooting =
2021 2021  )))
2022 2022  

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