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From version < 77.98 >
edited by Xiaoling
on 2022/06/10 09:32
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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 -
279 279  === 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;
... ... @@ -331,8 +331,6 @@
331 331  ** DO1 is high in case there is load between DO1 and V+.
332 332  ** DO1 LED is off in both case
333 333  
334 -
335 -
336 336  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
337 337  
338 338  
... ... @@ -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  
482 +
481 481  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
482 482  
483 483  
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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  
634 -
635 -
636 636  **AT Command to set Trigger Condition**:
637 637  
638 638  (% style="color:#4f81bd" %)**Trigger base on voltage**:
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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
... ... @@ -781,8 +781,6 @@
781 781  
782 782  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
783 783  
784 -
785 -
786 786  === 3.4.1 Common Commands ===
787 787  
788 788  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]]
... ... @@ -2014,8 +2014,16 @@
2014 2014  )))
2015 2015  
2016 2016  (((
2017 -
2007 +== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2018 2018  
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 +
2019 2019  = 6. Trouble Shooting =
2020 2020  )))
2021 2021  

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