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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... ... @@ -136,16 +136,7 @@ 136 136 ))) 137 137 138 138 139 -== 1.7 Pin Definitions == 140 - 141 - 142 -The following diagram shows the V1.2 hardware version. 143 - 144 -[[image:image-20240925161141-1.jpeg||height="412" width="405"]] 145 - 146 -[[image:image-20240925161157-2.jpeg||height="367" width="545"]] 147 - 148 - 139 +== 1.7 Pin definition == 149 149 ))) 150 150 ))) 151 151 ... ... @@ -571,68 +571,13 @@ 571 571 === 3.3.7 Uplink on Interrupt === 572 572 573 573 574 - 575 575 RS485-LN support external Interrupt uplink since hardware v1.2 release. 576 576 577 -(% 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"]] 567 +(% 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" %) 578 578 569 +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. 579 579 580 -==== 3.3.7.1 Set Interrupt Mode ==== 581 581 582 - 583 -Before using the interrupt function of the **INT** pin, users can set the interrupt triggering mode as required. 584 - 585 -(% style="color:blue" %)**AT command:** 586 - 587 -* (% style="color:#037691" %)**AT+INTMOD **(%%) ~/~/ Set the trigger interrupt mode 588 - 589 -* (% style="color:#037691" %)**AT+INTMOD=0 **(%%) ~/~/ Disable Interrupt 590 - 591 -* (% style="color:#037691" %)**AT+INTMOD=1 **(%%) ~/~/ Trigger by rising and falling edge 592 - 593 -* (% style="color:#037691" %)**AT+INTMOD=2 **(%%) ~/~/ Trigger by falling edge **(default)** 594 - 595 -* (% style="color:#037691" %)**AT+INTMOD=3 **(%%) ~/~/ Trigger by rising edge 596 - 597 -(% style="color:blue" %)**Downlink Commands: **(% style="color:#037691" %)**0x06** 598 - 599 -Format: Command Code (0x06) followed by 3 bytes. 600 - 601 -Example1: Downlink Payload: **06 00 00 01 **~/~/ AT+INTMOD=1 602 - 603 -Example2: Downlink Payload: **06 00 00 03 **~/~/AT+INTMOD=3 604 - 605 - 606 -==== 3.3.7.2 Practical application ==== 607 - 608 - 609 -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**(%%): 610 - 611 -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. 612 - 613 -(% style="color:red" %)**Note: The voltage ranges from 3.3V to 24V. Generally, it is recommended to use less than 12V.** 614 - 615 -**Example:** 616 - 617 -* Use a dry contact to connect the (% style="color:blue" %)**INT**(%%) pin and (% style="color:blue" %)**VIN+**(%%) pin of the RS485-LN. 618 - 619 -When the dry contact is closed, INT and VIN+ conduct and INT is high. 620 - 621 -Disconnecting the dry contact, the level of the INT pin changes from high to low, triggering an interrupt (triggered by the falling edge along the interrupt), and the RS485-LN sends an uplink data. 622 - 623 -[[image:image-20240925164510-3.jpeg||height="414" width="656"]] 624 - 625 -* 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.) 626 - 627 -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. 628 - 629 -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 630 - 631 -high to low, at which time an interrupt is triggered (triggered along the falling edge), and the device will send an uplink data. 632 - 633 -[[image:image-20240925173243-4.jpeg||height="404" width="900"]] 634 - 635 - 636 636 == 3.4 Uplink Payload == 637 637 638 638
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