Last modified by Saxer Lin on 2025/04/15 17:24
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From version < 77.88 >
edited by Xiaoling
on 2022/06/10 09:27
To version < 82.9 >
edited by Xiaoling
on 2022/06/20 11:19
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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  
... ... @@ -172,6 +172,9 @@
172 172  * Firmware upgradable via program port
173 173  * Counting
174 174  
184 +
185 +
186 +
175 175  == 1.4  Applications ==
176 176  
177 177  * Smart Buildings & Home Automation
... ... @@ -181,6 +181,9 @@
181 181  * Smart Cities
182 182  * Smart Factory
183 183  
196 +
197 +
198 +
184 184  == 1.5 Hardware Variants ==
185 185  
186 186  (% border="1" style="background-color:#f7faff; width:500px" %)
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194 194  * 1 x Counting Port
195 195  )))
196 196  
212 +
213 +
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  
247 +
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.
253 +(% 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  
262 +
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.
276 +(% 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  
294 +
295 +
296 +
278 278  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
279 279  
280 280  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
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282 282  [[image:image-20220523174024-3.png]]
283 283  
284 284  (((
304 +
305 +
285 285  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
286 286  )))
287 287  
... ... @@ -295,6 +295,7 @@
295 295  
296 296  For example if payload is: [[image:image-20220523175847-2.png]]
297 297  
319 +
298 298  **The value for the interface is:  **
299 299  
300 300  AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
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328 328  
329 329  
330 330  
353 +
331 331  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
332 332  
333 333  
... ... @@ -468,11 +468,10 @@
468 468  
469 469  (((
470 470  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
471 -
472 -
473 473  )))
474 474  
475 475  
497 +
476 476  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
477 477  
478 478  
... ... @@ -638,6 +638,7 @@
638 638  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
639 639  
640 640  
663 +
641 641  (% style="color:#4f81bd" %)**Trigger base on current**:
642 642  
643 643  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -647,6 +647,7 @@
647 647  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
648 648  
649 649  
673 +
650 650  (% style="color:#4f81bd" %)**Trigger base on DI status**:
651 651  
652 652  DI status trigger Flag.
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653 653  
654 654  Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >
655 655  
680 +
656 656  **Example:**
657 657  
658 658  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
659 659  
660 660  
661 -**Downlink Command to set Trigger Condition**
686 +**Downlink Command to set Trigger Condition:**
662 662  
663 663  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
664 664  
... ... @@ -687,6 +687,7 @@
687 687  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
688 688  
689 689  
715 +
690 690  (% style="color:#4f81bd" %)**Trigger Settings Payload Explanation:**
691 691  
692 692  MOD6 Payload : total 11 bytes payload
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750 750  )))
751 751  
752 752  
753 -
754 754  == 3.4 ​Configure LT via AT or Downlink ==
755 755  
756 756  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
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763 763  
764 764  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
765 765  
766 -
767 767  === 3.4.1 Common Commands ===
768 768  
769 769  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]]
... ... @@ -1995,8 +1995,16 @@
1995 1995  )))
1996 1996  
1997 1997  (((
1998 -
2022 +== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
1999 1999  
2024 +If the device is not shut down, but directly powered off.
2025 +
2026 +It will default that this is a power-off state.
2027 +
2028 +In modes 2 to 5, DO RO status and pulse count are saved in flash.
2029 +
2030 +After restart, the status before power failure will be read from flash.
2031 +
2000 2000  = 6. Trouble Shooting =
2001 2001  )))
2002 2002  

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