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What are the capabilities of the latest modern industrial sensor gateways

2022-09-23 10:35:0151CTO

Foreword

Traditional DTU can no longer meet the current market demand. In the past two years, major industrial IoT manufacturers have launched JSON-type smart gateways. Here is an example of a smart JSON gateway called LTE-669.The related functions will be popularized for you.

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1. Main function description:

Modbus to json function is mainly used to collect Modbus RTU sensor data, parse the collected data according to the configured data type, and package it into key-value json format and report it to the server.The server issues commands in json format, saving the user the trouble of parsing the data and converting the format by himself.Supports connection between self-built servers and Alibaba Cloud IoT platform.

Features

Support connection to self-built server and Alibaba Cloud IoT platform

· Support TCP-Client/UDP-Master/TCP-ZSD/UDP-ZSD/MQTT/HTTP protocol

· Support Modbus RTU to json, support to collect multiple register data, pack them into json and upload to the server

· Support json to Modbus, support receiving server json command, convert to Modbus RTU output

· Support custom json format

· Support NTP time

·Support local and remote parameter configuration

·Support formula operation, which can convert the original data into the required data according to a certain formula

·Support Lua code, users can judge the collected data and perform different operations

·Support keyword to issue json command configuration script, lua code, value of Reg register

2. Gateway workflow

The json gateway DTU sends corresponding Modbus commands to the serial port by configuring Modbus related parameters, and the 485 device will return the collected data after receiving the command.The parsed value is packaged into json in key-value format and sent to the server.The process is as follows:

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(1) Configure the server IP address/domain name and port number. If it is the MQTT protocol, you need to configure parameters such as ClinetID, username, password, publish topic and subscription topic, and configure the polling cycleand reporting cycle, json data format.

(2) Configure Modbus related parameters, Modbus substation address, register address, data type, and calculation formula.

(3) If it is the Alibaba Cloud IoT platform, you need to create a device on the server; if it is a self-built server, you need to open the corresponding host computer software on the server side.

(4) The server receives the packaged json data.

3. Summary

This functional gateway enables data parsing without the need for more development work by IIoT engineers, greatly improving efficiency.

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Those features are available in the latest modern industrial sensor gateways_json_04

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