Last modified by Karry Zhuang on 2024/07/11 11:58
Summary
-
Page properties (1 modified, 0 added, 0 removed)
Details
- Page properties
-
- Content
-
... ... @@ -8,12 +8,12 @@ 8 8 9 9 10 10 11 -= 1. Introduction = 11 += **1. Introduction** = 12 12 13 13 This article provide the examples for RS485-LN to connect to different type of RS485 sensors. 14 14 15 15 16 -== 1.1 Example 1: Connect to Leak relay and VFD == 16 +== **1.1 Example 1: Connect to Leak relay and VFD** == 17 17 18 18 This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to Relay and VFD and communicate with Mobile. The structure is like below: 19 19 ... ... @@ -36,7 +36,7 @@ 36 36 37 37 38 38 39 -== 1.2 Example 2: Connect to Pulse Counter == 39 +== **1.2 Example 2: Connect to Pulse Counter** == 40 40 41 41 This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to Pulse Counter and communicate with Mobile. This example and example 2 compose the structure for a farm IoT solution. The structure is like below: 42 42 ... ... @@ -45,18 +45,20 @@ 45 45 Connection 46 46 47 47 48 + 48 48 [[image:image-20220527092146-4.png]] 49 49 50 50 Connection 51 51 53 + 52 52 * [[Pickdata MIO40 water pulse counter to LoRa with Dragino RS485-LN>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Pulse-Counter/]] : Configure Document 53 53 * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]] 54 54 55 55 == == 56 56 57 -== 1.3 Example3: Use RS485-LN with energy meters == 59 +== **1.3 Example3: Use RS485-LN with energy meters** == 58 58 59 -=== 1.3.1 OverView === 61 +=== **1.3.1 OverView** === 60 60 61 61 ((( 62 62 **Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications. ... ... @@ -71,6 +71,7 @@ 71 71 Connection1 72 72 73 73 76 + 74 74 ((( 75 75 How to connect with Energy Meter： 76 76 ))) ... ... @@ -100,12 +100,13 @@ 100 100 Connection2 101 101 102 102 106 + 103 103 [[image:image-20220527092555-7.png]] 104 104 105 105 Connection3 106 106 107 107 108 -=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands === 112 +=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** === 109 109 110 110 If the user needs to read the parameters of the electric energy meter and use the modbus command,please refer to the appendix of the MODBUS communication protocol in the user manual of the energy meter. 111 111 ... ... @@ -167,11 +167,11 @@ 167 167 AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c 168 168 ))) 169 169 170 -a: length for the return of AT+COMMAND 174 +a: length for the return of AT+COMMAND 171 171 172 -b:1: grab valid value by byte, max 6 bytes .2: grab valid value by bytes section, max 3 sections.176 +b: 1: grab valid value by byte, max 6 bytes; 2: grab valid value by bytes section, max 3 sections. 173 173 174 -c: define the position for valid value. 178 +c: define the position for valid value. 175 175 176 176 [[image:image-20220527092936-10.png]] 177 177 ... ... @@ -178,6 +178,7 @@ 178 178 AT COMMAND 179 179 180 180 185 + 181 181 PAYLOAD is available after the valid value is intercepted. 182 182 183 183 ... ... @@ -491,7 +491,6 @@ 491 491 492 492 * [[Connect to SEM Three>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/SEM_Three_Energy_Meter/&file=SEM%20three%20and%20Dragino%20RS485-LN%20v1.pdf]] : Configure Document for RS485-LN 493 493 494 - 495 495 == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN == 496 496 497 497 This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to CEM C31 485-T1-MID and send the data for remote minitor. The structure is like below: ... ... @@ -498,7 +498,6 @@ 498 498 499 499 * [[CEM C31 485-T1-MID>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/ELECTRICAL%20CABINET/&file=ELECTRICAL%20CABINET%20READINGS.pdf]] : Configure Document For RS485-LN 500 500 501 - 502 502 == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL == 503 503 504 504 [[image:image-20220527094556-31.png]]