Author: iot-en (page 128)

Introduction: ZHC4661 is an industrial-grade 4G DTU that provides 4-channel AI, 2-channel AO and 1-channel RS485 interfaces. It supports Modbus RTU/TCP adaptation, automatic collection and active reporting, 4~20mA analog control collection, and automatic calibration threshold reporting. Other special functions include…

Product introduction ZHC0561 is a low-frequency half-duplex LoRa data transmission terminal that supports point-to-point communication protocol. It has 2DO, 4DI, local logic settings and inter-device logic settings, and supports AES communication encryption. Using the serial port for sending and receiving…

Product introduction: ZHC4941 is an industrial-grade 4G RTU that provides 8 DI, 8 DO, 8 AI and 1 RS485/232 interfaces. It supports local logic processing operations, automatic collection and active reporting, Modbus RTU/TCP adaptation, and automatic calibration thresholds. Reporting, configuration…

Introduction: ZHC4921 is an industrial-grade 4G RTU that provides 4 channels of DI, 4 channels of DO, 4 channels of AI and 1 channel of RS485 interfaces. It supports local logic processing operations, automatic collection and active reporting, Modbus RTU/TCP…

LoRa features and introduction LoRa is a type of short-distance communication in the Internet of Things. Not all scenarios are suitable for LoRa. So before understanding the applications of LoRa, let’s first talk about some characteristics of LoRa. ◆Transmission distance:…

Exhibition: The 22nd China International Industrial Fair (CIIF2020) Time: September 15-19, 2020 Location: Shanghai National Convention and Exhibition Center (No. 333 Songze Avenue) Booth number: 2.1H-C031 Exhibition details China International Industry Fair (hereinafter referred to as “China Industry Fair”) is…

Introduction to LoRa LoRa communication technology is one of the short-distance communications in the Internet of Things communication technology. The same short-distance communication technologies include Bluetooth, WIFI, Zigbee, etc. LoRa is the abbreviation of Long Range in English. It is…

Unlike traditional solutions, signal transmission via the network no longer requires PLC or PC control. The hardware of the network controller IO controller can automatically map all physical switch signals without the need for ladder diagram or C language programming.…

Introduction to analog acquisition module There are currently 4 products of analog acquisition modules developed by Chengdu Zongheng Intelligent Control. This product can be used to collect standard signals from transmitters such as pressure, temperature, and displacement; collect flow data…

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Industrial grade IoT transmission terminal -DTU ZHC4012, developed by Zongheng Intelligent Control, is an industrial-grade IoT transmission terminal that can use the public network to provide long-distance wireless communication. Transmit the collected device data to the server. Provide RS485, 232…

To connect things to each other, a “bridge” is needed. Computers to computers, or computers to terminals, still need media. Data transmission between them can use two methods: serial communication and parallel communication. The serial communication method is widely used…