Last modified by Bei Jinggeng on 2025/01/10 15:06
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From version < 131.2 >
edited by Xiaoling
on 2024/09/28 10:13
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edited by Bei Jinggeng
on 2024/06/20 14:56
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1 -XWiki.Xiaoling
1 +XWiki.Bei
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2 -[[image:image-20240928101253-2.jpeg||height="603" width="603"]]
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2 +(((
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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  
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8 8  
9 9  
10 10  
11 -
12 12  **Table of Contents:**
13 13  
14 14  {{toc/}}
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132 132  v1.0: Release
133 133  )))
134 134  
135 -
136 -== 1.7 Pin Definitions ==
137 -
138 -
139 -The following diagram shows the V1.2 hardware version.
140 -
141 -[[image:image-20240925161141-1.jpeg||height="412" width="405"]]
142 -
143 -[[image:image-20240925161157-2.jpeg||height="367" width="545"]]
144 -
145 145  
146 146  )))
147 147  )))
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568 568  === 3.3.7 Uplink on Interrupt ===
569 569  
570 570  
571 -
572 572  RS485-LN support external Interrupt uplink since hardware v1.2 release.
573 573  
574 -(% 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"]]
566 +(% 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" %)​
575 575  
568 +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.
576 576  
577 -==== 3.3.7.1 Set Interrupt Mode ====
578 578  
579 -
580 -Before using the interrupt function of the **INT** pin, users can set the interrupt triggering mode as required.
581 -
582 -(% style="color:blue" %)**AT command:**
583 -
584 -* (% style="color:#037691" %)**AT+INTMOD **(%%) ~/~/ Set the trigger interrupt mode
585 -
586 -* (% style="color:#037691" %)**AT+INTMOD=0 **(%%) ~/~/ Disable Interrupt
587 -
588 -* (% style="color:#037691" %)**AT+INTMOD=1 **(%%) ~/~/ Trigger by rising and falling edge
589 -
590 -* (% style="color:#037691" %)**AT+INTMOD=2 **(%%) ~/~/ Trigger by falling edge **(default)**
591 -
592 -* (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
593 -
594 -(% style="color:blue" %)**Downlink Commands: **(% style="color:#037691" %)**0x06**
595 -
596 -Format: Command Code (0x06) followed by 3 bytes.
597 -
598 -Example1:  Downlink Payload: **06 00 00 01    **~/~/ AT+INTMOD=1
599 -
600 -Example2:  Downlink Payload: **06 00 00 03    **~/~/AT+INTMOD=3
601 -
602 -
603 -==== 3.3.7.2 Practical application ====
604 -
605 -
606 -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**(%%):
607 -
608 -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.
609 -
610 -(% 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.**
611 -
612 -**Example:**
613 -
614 -* Use a dry contact to connect the (% style="color:blue" %)**INT**(%%) pin and (% style="color:blue" %)**VIN+**(%%) pin of the RS485-LN.
615 -
616 -When the dry contact is closed, INT and VIN+ conduct and INT is high.
617 -
618 -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.
619 -
620 -[[image:image-20240925174124-5.jpeg||height="439" width="703"]]
621 -
622 -* 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.)
623 -
624 -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.
625 -
626 -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
627 -
628 -high to low, at which time an interrupt is triggered (triggered along the falling edge), and the device will send an uplink data.
629 -
630 -[[image:image-20240925173243-4.jpeg||height="404" width="900"]]
631 -
632 -* Example of interrupt data in TTN.
633 -
634 -The first byte of the payload of the interrupted packet is (% style="color:blue" %)**0x81**(%%).
635 -
636 -[[image:image-20240925181010-1.png||height="348" width="953"]]
637 -
638 -
639 639  == 3.4 Uplink Payload ==
640 640  
641 641  
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804 804  )))
805 805  
806 806  (((
807 -(% style="color:blue" %)**Example 2:**  (%%)
739 +(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
808 808  )))
809 809  
810 810  (((
811 -Check TTL Sensor return:
743 +User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
812 812  )))
813 813  
814 814  (((
747 +
748 +)))
749 +
815 815  (((
816 -[[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/1654132684752-193.png?rev=1.1||alt="1654132684752-193.png"]](% title="Click and drag to resize" %)​
751 +(((
752 +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**
817 817  )))
754 +
755 +
818 818  )))
819 819  
758 +(((
759 + (% aria-label="1654159460680-153.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654159460680-153.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" %)​
760 +)))
820 820  
821 821  
763 +
822 822  ==== (% style="color:blue" %)**Set Payload version**(%%) ====
823 823  
824 824  
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1752 1752  1. Check if Modbus-MTU return back the expected result to RS485-LN.
1753 1753  1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1754 1754  
1755 -[[image:image-20240816112950-1.png||height="382" width="731"]]
1697 +[[image:image-20221130104310-1.png||height="380" width="680"]]
1756 1756  
1757 1757  
1758 1758  Example Connection:
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