Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 77.2 >
edited by Xiaoling
on 2022/06/10 08:37
To version < 68.31 >
edited by Xiaoling
on 2022/05/31 11:26
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11 11  
12 12  
13 13  
14 -
15 -
16 -
17 17  = 1.Introduction =
18 18  
19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
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.
19 +The Dragino LT series I/O Modules are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as: analog current Input, analog voltage input, relay output, digital input and digital output etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
23 23  )))
24 24  
25 25  (((
... ... @@ -27,7 +27,7 @@
27 27  )))
28 28  
29 29  (((
30 -The LT I/O Controllers is aiming to provide an (% style="color:blue" %)**easy and low cost installation** (%%)by using LoRa wireless technology.
27 +The LT I/O Controllers is aiming to provide a simple plug and play, low cost installation by using LoRaWAN wireless technology.
31 31  )))
32 32  
33 33  (((
... ... @@ -607,7 +607,6 @@
607 607  
608 608  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
609 609  
610 -
611 611  (% style="color:#4f81bd" %)**Trigger base on current**:
612 612  
613 613  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -616,7 +616,6 @@
616 616  
617 617  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
618 618  
619 -
620 620  (% style="color:#4f81bd" %)**Trigger base on DI status**:
621 621  
622 622  DI status trigger Flag.
... ... @@ -720,7 +720,7 @@
720 720  There are two kinds of Commands:
721 721  )))
722 722  
723 -* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, 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]]
718 +* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
724 724  
725 725  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
726 726  
... ... @@ -791,7 +791,7 @@
791 791  
792 792  ==== 3.4.2.4 Enable Trigger Mode ====
793 793  
794 -Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
789 +Use of trigger mode, please check [[ADDMOD6>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
795 795  
796 796  * AT Command:
797 797  
... ... @@ -907,7 +907,7 @@
907 907  
908 908  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
909 909  
910 -Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
905 +Set current trigger , base on AC port. See [[trigger mode>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
911 911  
912 912  * AT Command:
913 913  
... ... @@ -920,19 +920,19 @@
920 920  
921 921  (% class="box infomessage" %)
922 922  (((
923 -**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
918 +**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
924 924  )))
925 925  
926 926  
927 927  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
928 928  
929 -Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
924 +Set current trigger , base on AV port. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
930 930  
931 931  * AT Command:
932 932  
933 933  (% class="box infomessage" %)
934 934  (((
935 -**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
930 +**AT+AVLIM. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
936 936  )))
937 937  
938 938  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -939,7 +939,7 @@
939 939  
940 940  (% class="box infomessage" %)
941 941  (((
942 -**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
937 +**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]] **
943 943  )))
944 944  
945 945  
... ... @@ -1136,13 +1136,13 @@
1136 1136  
1137 1137  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1138 1138  
1139 -When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1134 +When voltage exceed the threshold, count. Feature see [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]
1140 1140  
1141 1141  * AT Command:
1142 1142  
1143 1143  (% class="box infomessage" %)
1144 1144  (((
1145 -**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1140 +**AT+VOLMAX    ~/~/ See [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]**
1146 1146  )))
1147 1147  
1148 1148  * Downlink Payload (prefix 0xA5):
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1237 1237  
1238 1238  [[image:image-20220524094641-12.png||height="402" width="718"]]
1239 1239  
1240 -
1241 1241  **Step 3**: Create an account or log in Mydevices.
1242 1242  
1243 1243  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1284,103 +1284,50 @@
1284 1284  [[image:1653357170703-587.png]]
1285 1285  
1286 1286  (((
1287 -(((
1288 1288  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1289 1289  )))
1290 -)))
1291 1291  
1292 -(((
1293 -
1294 -)))
1295 1295  
1296 -(((
1297 1297  **Example1**: Connect to a Low active sensor.
1298 -)))
1299 1299  
1300 -(((
1301 1301  This type of sensor will output a low signal GND when active.
1302 -)))
1303 1303  
1304 -* (((
1305 -Connect sensor’s output to DI1-
1306 -)))
1307 -* (((
1308 -Connect sensor’s VCC to DI1+.
1309 -)))
1289 +* Connect sensor’s output to DI1-
1290 +* Connect sensor’s VCC to DI1+.
1310 1310  
1311 -(((
1312 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1313 -)))
1292 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1314 1314  
1315 -(((
1316 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1317 -)))
1294 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]] = DI1+ / 1K.**
1318 1318  
1319 -(((
1320 -If DI1+ = 12v, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1321 -)))
1296 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1322 1322  
1323 -(((
1324 -
1325 -)))
1326 1326  
1327 -(((
1328 1328  **Example2**: Connect to a High active sensor.
1329 -)))
1330 1330  
1331 -(((
1332 1332  This type of sensor will output a high signal (example 24v) when active.
1333 -)))
1334 1334  
1335 -* (((
1336 -Connect sensor’s output to DI1+
1337 -)))
1338 -* (((
1339 -Connect sensor’s GND DI1-.
1340 -)))
1303 +* Connect sensor’s output to DI1+
1304 +* Connect sensor’s GND DI1-.
1341 1341  
1342 -(((
1343 1343  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1344 -)))
1345 1345  
1346 -(((
1347 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1348 -)))
1308 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
1349 1349  
1350 -(((
1351 -If **DI1+ = 24v**, the[[image:1653968155772-850.png||height="23" width="19"]] 24mA , So the LT-22222-L will be able to detect this high active signal.
1352 -)))
1310 +If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1353 1353  
1354 -(((
1355 -
1356 -)))
1357 1357  
1358 -(((
1359 1359  **Example3**: Connect to a 220v high active sensor.
1360 -)))
1361 1361  
1362 -(((
1363 1363  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1364 -)))
1365 1365  
1366 -* (((
1367 -Connect sensor’s output to DI1+ with a serial 50K resistor
1368 -)))
1369 -* (((
1370 -Connect sensor’s GND DI1-.
1371 -)))
1317 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1318 +* Connect sensor’s GND DI1-.
1372 1372  
1373 -(((
1374 1374  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1375 -)))
1376 1376  
1377 -(((
1378 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1379 -)))
1322 + [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
1380 1380  
1381 -(((
1382 -If sensor output is 220v, the [[image:1653968155772-850.png||height="23" width="19"]](% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1383 -)))
1324 +If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1384 1384  
1385 1385  
1386 1386  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
... ... @@ -1861,11 +1861,6 @@
1861 1861  (((
1862 1862  User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn’t support AT+DEBUG. User can update to latest firmware first.
1863 1863  
1864 -
1865 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1866 -
1867 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1868 -
1869 1869  
1870 1870  )))
1871 1871  
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