一、MQTT协议网关 AF-GSM300-HW868 符合意大利国家要求 概述
I. Overview
AF-GSM 是安科瑞电气推出的新型的 4G 远程无线数据采集设备，采用嵌入式设计，内嵌 TCP/IP 协议栈，同时采用了功能强大的微处理芯片，配合内置看门狗，性能可靠稳定。
AF-GSM is a new 4G remote wireless data acquisition device launched by Acrel Electric. By adopting embedded design, it is embedded TCP/IP protocol stack, as well as powerful microprocessor chip and built-inwatchdog, therefore, it has reliable and stable performance.
本产品提供标准 RS485 数据接口，可以方便的连接 RTU、PLC、工控机等设备，仅需一次性完成初始化配置，就可以完成对 MODBUS 设备的数据采集，并且与安科瑞服务器进行通讯，设备外形如图 1 所示。
In this product, the standard RS485 data interface is provided, which can be easily connected to RTU, PLC,industrial computer and other equipment. It only needs to complete the initial configuration at one time and then itcan complete the data acquisition of MODBUS device, and communicates with Acrel server. The outline of thedevice is shown in Figure 1.
图 1 AF-GSM300/400
Figure 1 AF-GSM300/400
可应用于：
It can be applied to:
工业、遥感、遥测及公共事业；
Industrial remote control, remote sensing, telemetry and public utilities;
气象数据采集；
Meteorological data collection;
三防与水文监测；
Three-proofings (water-proof, oil-proof and stain-proof) and hydrological monitoring;
12
、车载等行业。
Finance, automotive and other industries.
典型应用连接如图 2 连接示意所示，将现场的 485 设备与 AF-GSM300/400 相连接，GSM300/400 会根据自
身的配置主动采集 485 设备的数据，然后与安科瑞服务器通讯。
The typical application connection is shown in Figure 1 Connection Diagram. It connects the on-site 485 device
to the AF-GSM300/400, and GSM300/400 will actively collect the data of 485 device according to its own
configuration, and then communicates with the Acrel server.
图 2 连接示意
Figure 2 Connection Diagram
二、功能特点MQTT协议网关 AF-GSM300-HW868 符合意大利国家要求
II. Functional Characteristics
1、支持串口 MODBUS RTU 协议的数据采集，并通过安科瑞平台协议与安科瑞服务器通讯。
It supports data acquisition of the serial port MODBUS RTU protocol and communicates with the Acrel server
through the Acrel platform protocol.
2、支持最多 30 个 MODBUS RTU 设备的数据采集。
It supports for data acquisition of up to 30 MODBUS RTU devices.
3、支持对每个 MODBUS 设备 5 个寄存器地址域的采集，每个寄存器地址范围不超过 64 个。
It supports the acquisition of 5 register address fields for each MODBUS device, with each register address range not
exceeding 64.
4、支持对每个 MODBUS 地址范围预设报警地址以及报警值触发报警。每个地址域报警地址目前最多 14 个。
It supports triggering alarms by presetting alarm addresses and alarm values for each MODBUS address range. There
are currently up to 14 alarm addresses for each address field.
5、支持服务器 MODBUS 或者 LORA 透传通讯。
It supports server MODBUS or LORA unvarnished transmission communication.
6、支持固定 IP 和动态域名解析方式连接数据中心。
It supports to connect the data center by fixed IP and dynamic domain name resolution.
海外网关选型指导