Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual
Last modified by Bei Jinggeng on 2025/01/10 15:06
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... ... @@ -1,6 +1,10 @@ 1 -(% style="text-align:center" %) 2 -[[image:image-20240928101253-2.jpeg||height="603" width="603"]] 1 +(% aria-label="1653266934636-343.png image widget" contenteditable="false" role="region" tabindex="-1" %) 2 +((( 3 +(% data-widget="image" style="text-align:center" %) 4 +[[image:1653266934636-343.png||height="385" width="385"]](% title="Click and drag to resize" %) 3 3 6 +(% 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==||height="15" role="presentation" title="Click and drag to move" width="15"]] 7 +))) 4 4 5 5 6 6 ... ... @@ -8,7 +8,6 @@ 8 8 9 9 10 10 11 - 12 12 **Table of Contents:** 13 13 14 14 {{toc/}} ... ... @@ -47,10 +47,13 @@ 47 47 ))) 48 48 49 49 ((( 50 -(% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]] (% title="Click and drag to resize" %)53 +(% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]] 51 51 ))) 52 52 53 53 57 +(% aria-label="1653267211009-519.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653267211009-519.png||data-widget="image" height="419" width="724"]](% 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" %) 58 + 59 + 54 54 == 1.2 Specifications == 55 55 56 56 ... ... @@ -135,7 +135,7 @@ 135 135 136 136 The following diagram shows the V1.2 hardware version. 137 137 138 -[[image:image-2024092 8101253-2.jpeg||height="542" width="542"]]144 +[[image:image-20240925161141-1.jpeg||height="412" width="405"]] 139 139 140 140 [[image:image-20240925161157-2.jpeg||height="367" width="545"]] 141 141 ... ... @@ -179,10 +179,10 @@ 179 179 180 180 Here shows an example for how to join the TTN V3 Network. Below is the network structure, we use [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]] as LoRaWAN gateway here. 181 181 182 -[[image:image-20240928102637-3.png||height="522" width="917"]] 183 183 184 -(% 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"]] 189 +(% aria-label="1653268155545-638.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268155545-638.png||data-widget="image" height="334" width="724"]](% 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" %) 185 185 191 + 186 186 ((( 187 187 ((( 188 188 The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below: ... ... @@ -565,74 +565,13 @@ 565 565 === 3.3.7 Uplink on Interrupt === 566 566 567 567 568 - 569 569 RS485-LN support external Interrupt uplink since hardware v1.2 release. 570 570 571 -(% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.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"]] 576 +(% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.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" %) 572 572 578 +Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet. 573 573 574 -==== 3.3.7.1 Set Interrupt Mode ==== 575 575 576 - 577 -Before using the interrupt function of the **INT** pin, users can set the interrupt triggering mode as required. 578 - 579 -(% style="color:blue" %)**AT command:** 580 - 581 -* (% style="color:#037691" %)**AT+INTMOD **(%%) ~/~/ Set the trigger interrupt mode 582 - 583 -* (% style="color:#037691" %)**AT+INTMOD=0 **(%%) ~/~/ Disable Interrupt 584 - 585 -* (% style="color:#037691" %)**AT+INTMOD=1 **(%%) ~/~/ Trigger by rising and falling edge 586 - 587 -* (% style="color:#037691" %)**AT+INTMOD=2 **(%%) ~/~/ Trigger by falling edge **(default)** 588 - 589 -* (% style="color:#037691" %)**AT+INTMOD=3 **(%%) ~/~/ Trigger by rising edge 590 - 591 -(% style="color:blue" %)**Downlink Commands: **(% style="color:#037691" %)**0x06** 592 - 593 -Format: Command Code (0x06) followed by 3 bytes. 594 - 595 -Example1: Downlink Payload: **06 00 00 01 **~/~/ AT+INTMOD=1 596 - 597 -Example2: Downlink Payload: **06 00 00 03 **~/~/AT+INTMOD=3 598 - 599 - 600 -==== 3.3.7.2 Practical application ==== 601 - 602 - 603 -The following uses the default interrupt triggering mode (% style="color:blue" %)**(AT+INTMOD=2)**(%%) as an example to show the interrupt function of (% style="color:blue" %)**INT**(%%): 604 - 605 -When a high voltage is given to the INT pin and then the level of the (% style="color:blue" %)**INT**(%%) pin changes from high to low, the interrupt is triggered by a falling edge and the RS485-LN sends an uplink data. 606 - 607 -(% style="color:red" %)**Note: The level that triggers the interrupt ranges from 3.3V to 24V. Generally, it is recommended to use less than 12V.** 608 - 609 -**Example:** 610 - 611 -* Use a dry contact to connect the (% style="color:blue" %)**INT**(%%) pin and (% style="color:blue" %)**VIN+**(%%) pin of the RS485-LN. 612 - 613 -When the dry contact is closed, INT and VIN+ conduct and INT is high. 614 - 615 -Disconnecting the dry contact, the level of the INT pin changes from high to low, triggering an interrupt (triggered along the falling edge), and the RS485-LN sends an uplink data. 616 - 617 -[[image:image-20240925174124-5.jpeg||height="439" width="703"]] 618 - 619 -* Use a regulated power supply or a wet contact to connect the 485-LN to trigger the interruption.(This section uses a regulated power supply as an example.) 620 - 621 -The positive pole of the stabilized power supply is connected to the (% style="color:blue" %)**INT**(%%) pin of RS485-LN, and the negative pole of the stabilized power supply is connected to the (% style="color:blue" %)**VIN-**(%%) pin of RS485-LN. 622 - 623 -When the regulated power supply is operating, a high voltage is given to the INT pin and the INT level is high. When the regulated power supply is turned off, the level of the INT pin changes from 624 - 625 -high to low, at which time an interrupt is triggered (triggered along the falling edge), and the device will send an uplink data. 626 - 627 -[[image:image-20240925173243-4.jpeg||height="404" width="900"]] 628 - 629 -* Example of interrupt data in TTN. 630 - 631 -The first byte of the payload of the interrupted packet is (% style="color:blue" %)**0x81**(%%). 632 - 633 -[[image:image-20240925181010-1.png||height="348" width="953"]] 634 - 635 - 636 636 == 3.4 Uplink Payload == 637 637 638 638
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