Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual
Last modified by Bei Jinggeng on 2025/01/16 11:36
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... ... @@ -12,11 +12,6 @@ 12 12 13 13 14 14 15 - 16 - 17 - 18 - 19 - 20 20 **Table of Contents:** 21 21 22 22 {{toc/}} ... ... @@ -113,7 +113,6 @@ 113 113 114 114 115 115 116 - 117 117 == 1.3 Features == 118 118 119 119 * LoRaWAN Class A & Class C protocol (default Class C) ... ... @@ -127,7 +127,6 @@ 127 127 128 128 129 129 130 - 131 131 == 1.4 Applications == 132 132 133 133 * Smart Buildings & Home Automation ... ... @@ -139,7 +139,6 @@ 139 139 140 140 141 141 142 - 143 143 == 1.5 Firmware Change log == 144 144 145 145 [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]] ... ... @@ -582,18 +582,17 @@ 582 582 583 583 Response feature is added to the server's downlink, a special package with a FPort of 200 will be uploaded immediately after receiving the data sent by the server. 584 584 585 -(% aria-label="image-20220602163333-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602163333-5.png||data-widget="image" height="263" width="1160"]](% title="Click and drag to resize" %) 577 +(% aria-label="image-20220602163333-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602163333-5.png||data-widget="image" height="263" width="1160"]](% style="background:url(~"http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png~") rgba(220, 220, 220, 0.5); left:0px; top:-15px" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %) 586 586 587 587 The first byte of this package represents whether the configuration is successful, 00 represents failure, 01 represents success. Except for the first byte, the other is the previous downlink. (All commands except A8 type commands are applicable) 588 588 589 589 590 - 591 591 === 3.5.3 Sensor related commands === 592 592 593 593 594 594 595 595 596 -==== (% style="color: blue" %)**RS485 Debug Command**(%%) ====587 +==== (% style="color:#037691" %)**RS485 Debug Command**(%%) ==== 597 597 598 598 ((( 599 599 This command is used to configure the RS485 devices; they won’t be used during sampling. ... ... @@ -667,8 +667,6 @@ 667 667 ))) 668 668 669 669 ((( 670 - 671 - 672 672 So if user want to use downlink command to control to RS485 Alarm, he can use: 673 673 ))) 674 674 ... ... @@ -689,7 +689,7 @@ 689 689 ))) 690 690 691 691 ((( 692 -**Example 2** 681 +**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**) 693 693 ))) 694 694 695 695 ((( ... ... @@ -701,11 +701,11 @@ 701 701 ))) 702 702 703 703 ((( 704 -((( 705 -RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is: **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00 **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00** 693 +RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is: 706 706 ))) 707 707 708 - 696 +((( 697 + **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00 **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00** 709 709 ))) 710 710 711 711 ((( ... ... @@ -724,7 +724,7 @@ 724 724 * ((( 725 725 (% style="color:#037691" %)**AT Command:** 726 726 727 -**AT+PAYVER: 716 +**AT+PAYVER: **Set PAYVER field = 1 728 728 729 729 730 730 ))) ... ... @@ -761,9 +761,9 @@ 761 761 (% style="color:#037691" %)**AT Command:** 762 762 ))) 763 763 764 -**AT+COMMANDx: 753 +**AT+COMMANDx: **Configure RS485 read command to sensor. 765 765 766 -**AT+DATACUTx: 755 +**AT+DATACUTx: **Configure how to handle return from RS485 devices. 767 767 768 768 769 769 * ((( ... ... @@ -803,8 +803,6 @@ 803 803 ))) 804 804 805 805 ((( 806 - 807 - 808 808 **Example:** 809 809 ))) 810 810 ... ... @@ -826,7 +826,7 @@ 826 826 ==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ==== 827 827 828 828 ((( 829 - **AT+MBFUN**is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].816 +AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]]. 830 830 ))) 831 831 832 832 ((( ... ... @@ -846,20 +846,18 @@ 846 846 ))) 847 847 848 848 * ((( 849 -AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 836 +AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN. 850 850 ))) 851 851 * ((( 852 -AT+COMMAND1= 01 03 00 10 00 08,1 839 +AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08. 853 853 ))) 854 854 * ((( 855 -AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10. 856 - 857 - 842 +AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10. 858 858 ))) 859 859 860 -(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]](% title="Click and drag to resize" %) 845 +(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]](% style="background:url(~"http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png~") rgba(220, 220, 220, 0.5); left:0px; top:-15px" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %) 861 861 862 -(% aria-label="image-20220602165351-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-7.png||data-widget="image"]](% title="Click and drag to resize" %) 847 +(% aria-label="image-20220602165351-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-7.png||data-widget="image"]](% style="background:url(~"http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png~") rgba(220, 220, 220, 0.5); left:0px; top:-15px" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %) 863 863 864 864 865 865 ... ... @@ -876,13 +876,16 @@ 876 876 877 877 * ((( 878 878 (% style="color:#037691" %)** AT Command:** 864 +))) 879 879 866 +(% class="box infomessage" %) 867 +((( 868 +((( 880 880 **AT+CMDDLaa=hex(bb cc)*1000** 881 881 ))) 871 +))) 882 882 883 883 ((( 884 - 885 - 886 886 **Example:** 887 887 ))) 888 888 ... ... @@ -907,11 +907,11 @@ 907 907 ))) 908 908 909 909 ((( 910 -**Example:** 898 + **Example:** 911 911 ))) 912 912 913 913 ((( 914 - **0xAA 01 00 01**902 + 0xAA 01 00 01 ~-~-> Same as **AT+CMDDL1=1000 ms** 915 915 ))) 916 916 917 917 ... ... @@ -925,8 +925,6 @@ 925 925 926 926 ((( 927 927 The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]] 928 - 929 - 930 930 ))) 931 931 932 932 * ((( ... ... @@ -986,8 +986,6 @@ 986 986 987 987 ((( 988 988 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them. 989 - 990 - 991 991 ))) 992 992 993 993 * ((( ... ... @@ -1039,35 +1039,35 @@ 1039 1039 ))) 1040 1040 1041 1041 ((( 1042 - 1043 - 1044 -* Set Baud Rate 1026 +Set Baud Rate: 1045 1045 ))) 1046 1046 1029 + 1047 1047 **AT+BAUDR=9600** ~/~/ Options: (1200,2400,4800,14400,19200,115200) 1048 1048 1049 1049 1050 1050 ((( 1051 - *Set UART Parity1034 +Set UART Parity 1052 1052 ))) 1053 1053 1037 + 1054 1054 **AT+PARITY=0** ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity 1055 1055 1056 1056 1057 1057 ((( 1058 - *Set STOPBIT1042 +Set STOPBIT 1059 1059 ))) 1060 1060 1045 + 1061 1061 **AT+STOPBIT=0** ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits 1062 1062 1063 1063 1064 - 1065 1065 * ((( 1066 1066 (% style="color:#037691" %)** Downlink Payload:** 1067 1067 ))) 1068 1068 1069 1069 ((( 1070 -**A7 01 aa bb**: 1054 +**A7 01 aa bb**: Same AT+BAUDR=hex(aa bb)*100 1071 1071 ))) 1072 1072 1073 1073 ((( ... ... @@ -1082,11 +1082,11 @@ 1082 1082 ))) 1083 1083 1084 1084 ((( 1085 -A7 02 aa: 1069 +A7 02 aa: Same as AT+PARITY=aa (aa value: 00 , 01 or 02) 1086 1086 ))) 1087 1087 1088 1088 ((( 1089 -A7 03 aa: 1073 +A7 03 aa: Same as AT+STOPBIT=aa (aa value: 00 , 01 or 02) 1090 1090 ))) 1091 1091 1092 1092 ... ... @@ -1140,7 +1140,7 @@ 1140 1140 ))) 1141 1141 1142 1142 ((( 1143 - (% style="color:#037691" %)**1127 +**Downlink Command:** 1144 1144 ))) 1145 1145 1146 1146 ((( ... ... @@ -1199,9 +1199,6 @@ 1199 1199 |(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485 1200 1200 |(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]] 1201 1201 1202 - 1203 - 1204 - 1205 1205 == 3.8 LEDs == 1206 1206 1207 1207 ... ... @@ -1210,9 +1210,6 @@ 1210 1210 |**PWR**|Always on if there is power 1211 1211 |**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message. 1212 1212 1213 - 1214 - 1215 - 1216 1216 = 4. Case Study = 1217 1217 1218 1218 User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]] ... ... @@ -1244,24 +1244,38 @@ 1244 1244 1245 1245 == 5.2 Common AT Command Sequence == 1246 1246 1247 - 1248 1248 === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) === 1249 1249 1250 1250 If device has not joined network yet: 1251 1251 1252 -* (% style="color:#037691" %)**AT+FDR** 1253 -* (% style="color:#037691" %)**AT+NJM=0** 1254 -* (% style="color:#037691" %)**ATZ** 1229 +(% class="box infomessage" %) 1230 +((( 1231 +**AT+FDR** 1232 +))) 1255 1255 1234 +(% class="box infomessage" %) 1256 1256 ((( 1257 - 1236 +**AT+NJM=0** 1237 +))) 1258 1258 1239 +(% class="box infomessage" %) 1240 +((( 1241 +**ATZ** 1242 +))) 1243 + 1244 + 1245 +((( 1259 1259 If device already joined network: 1247 +))) 1260 1260 1261 -* (% style="color:#037691" %)**AT+NJM=0** 1262 -* (% style="color:#037691" %)**ATZ** 1249 +(% class="box infomessage" %) 1250 +((( 1251 +**AT+NJM=0** 1252 +))) 1263 1263 1264 - 1254 +(% class="box infomessage" %) 1255 +((( 1256 +**ATZ** 1265 1265 ))) 1266 1266 1267 1267 ... ... @@ -1268,25 +1268,25 @@ 1268 1268 === 5.5.2 Single-channel ABP mode (Use with LG01/LG02) === 1269 1269 1270 1270 1271 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) 1263 +(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve 1272 1272 1273 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) 1265 +(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode 1274 1274 1275 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) 1267 +(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off 1276 1276 1277 -(% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) 1269 +(% style="background-color:#dcdcdc" %)**AT+DR=5** (%%)Set Data Rate 1278 1278 1279 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) 1271 +(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds 1280 1280 1281 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) 1273 +(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz 1282 1282 1283 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) 1275 +(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server) 1284 1284 1285 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5** (%%) 1277 +(% style="background-color:#dcdcdc" %)**AT+RX2DR=5** (%%) Set RX2DR to match the downlink DR from server. see below 1286 1286 1287 -(% style="background-color:#dcdcdc" %)**AT+DADDR=26** (%%) 1279 +(% style="background-color:#dcdcdc" %)**AT+DADDR=26** (%%) 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal. 1288 1288 1289 -(% style="background-color:#dcdcdc" %)**ATZ** (%%) 1281 +(% style="background-color:#dcdcdc" %)**ATZ** (%%) Reset MCU 1290 1290 1291 1291 1292 1292 (% style="color:red" %)**Note:** ... ... @@ -1326,15 +1326,15 @@ 1326 1326 (% aria-label="1654162535040-878.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162535040-878.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %) 1327 1327 1328 1328 ((( 1329 - (% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].1321 +**Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]]. 1330 1330 ))) 1331 1331 1332 1332 ((( 1333 - (% style="color:blue" %)**Step2**(%%)**:**Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].1325 +**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]. 1334 1334 ))) 1335 1335 1336 1336 ((( 1337 - (% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.1329 +**Step3: **Open flashloader; choose the correct COM port to update. 1338 1338 ))) 1339 1339 1340 1340 ((( ... ... @@ -1355,7 +1355,7 @@ 1355 1355 (% aria-label="image-20220602175912-14.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175912-14.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %) 1356 1356 1357 1357 1358 - (% style="color:red" %)**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:1350 +**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is: 1359 1359 1360 1360 (% aria-label="image-20220602175638-10.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175638-10.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %) 1361 1361 ... ... @@ -1377,19 +1377,14 @@ 1377 1377 Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]] 1378 1378 1379 1379 1380 -== 6.5 Can i use point to point communication for RS485-LN? == 1381 - 1382 -Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]]. 1383 - 1384 - 1385 1385 = 7. Trouble Shooting = 1386 1386 1387 -== 7.1 Downlink doesn 't work, how to solve it? ==1374 +== 7.1 Downlink doesn’t work, how to solve it? == 1388 1388 1389 1389 Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]] 1390 1390 1391 1391 1392 -== 7.2 Why I can 't join TTN V3 in US915 /AU915 bands? ==1379 +== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? == 1393 1393 1394 1394 It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]] 1395 1395 ... ... @@ -1400,16 +1400,16 @@ 1400 1400 1401 1401 (% style="color:blue" %)**XXX:** 1402 1402 1403 -* (% style="color: red" %)**EU433**(%%):1404 -* (% style="color: red" %)**EU868**(%%):1405 -* (% style="color: red" %)**KR920**(%%):1406 -* (% style="color: red" %)**CN470**(%%):1407 -* (% style="color: red" %)**AS923**(%%):1408 -* (% style="color: red" %)**AU915**(%%):1409 -* (% style="color: red" %)**US915**(%%):1410 -* (% style="color: red" %)**IN865**(%%):1411 -* (% style="color: red" %)**RU864**(%%):1412 -* (% style="color: red" %)**KZ865**(%%):1390 +* (% style="color:blue" %)**EU433**(%%): frequency bands EU433 1391 +* (% style="color:blue" %)**EU868**(%%): frequency bands EU868 1392 +* (% style="color:blue" %)**KR920**(%%): frequency bands KR920 1393 +* (% style="color:blue" %)**CN470**(%%): frequency bands CN470 1394 +* (% style="color:blue" %)**AS923**(%%): frequency bands AS923 1395 +* (% style="color:blue" %)**AU915**(%%): frequency bands AU915 1396 +* (% style="color:blue" %)**US915**(%%): frequency bands US915 1397 +* (% style="color:blue" %)**IN865**(%%): frequency bands IN865 1398 +* (% style="color:blue" %)**RU864**(%%): frequency bands RU864 1399 +* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865 1413 1413 1414 1414 = 9.Packing Info = 1415 1415 ... ... @@ -1442,7 +1442,7 @@ 1442 1442 ))) 1443 1443 1444 1444 ((( 1445 - (% style="color:red" %)**IMPORTANT NOTE:**1432 +**IMPORTANT NOTE:** 1446 1446 ))) 1447 1447 1448 1448 ((( ... ... @@ -1470,7 +1470,7 @@ 1470 1470 ))) 1471 1471 1472 1472 ((( 1473 - (% style="color:red" %)**FCC Radiation Exposure Statement:**1460 +**FCC Radiation Exposure Statement:** 1474 1474 ))) 1475 1475 1476 1476 (((