Serial server module:
The serial port server module developed by Zongheng Intelligent Control has many product functions and rich interfaces. Supports 4-way Socket, 12-bit sampling accuracy, AO remote following AI, configuration cloud real-time monitoring PLC, automatic IP address acquisition, DNS domain name resolution, 4-20mA analog automatic reporting and other special functions. It has a variety of product models. Different product models provide different interface types, including AI, AO, DI, DO, RS485 and other interfaces. For details, please refer to the selection table below.
Serial server module
Serial server module product selection table
| Name/Model | interface | protocolo |
| Ethernet RTU (ZHC1661) | RS485/4AI/2AO | Modbus RTU/TCP |
| Ethernet RTU (ZHC1921) | RS485/4DI/2PIN/4DO/4AI | MQTT, Modbous RTU/TCP |
| Ethernet RTU (ZHC1931) | RS485/RS232/2DI/1DO/1AI | Modbus RTU/TCP |
Serial server module application
(1) Supermarket storage cabinet
In supermarkets, customers need to enter the supermarket to shop, and their own bags and other items are not allowed to be brought in. Automatic storage cabinets can solve this problem very well, automatically register faces, automatically recognize faces and switch on and off.
The implementation principle is: place the serial port server module in the supermarket storage cabinet, DI and DO links control the door switch, and the other end is connected to the computer. At the same time, this system also uses a camera to collect face data. The first successful face recognition will automatically open a storage cabinet. When the last recorded face appears in front of the camera again and the comparison with the last face is successful, the serial port server module will control the corresponding locker to open.
(2) Automatic weighing
On highways or on certain special road sections, cars need to be weighed.
Implementation principle: There is a weighing device buried under the road, and the serial port server module is used to connect the weighing device and collect data. Send the collected data to the computer in the control room to achieve unmanned weighing. Through the background system, the corresponding price can also be automatically calculated and displayed on the display screen.
Functions of serial port server module
◆Provide multiple interfaces, RS485, AI, AO, DI, DO;
◆Support AO and follow AI (local, remote
◆MQTT, TCP_Client/, TCP_Server, Modbus RTU/TCP
◆Supports host and slave modes. The host mode supports RS485 cascading multiple devices for cloud forwarding and cloud networking.
◆Local logic, inter-device logic, threshold reporting, etc.
◆Network registration package, heartbeat package, hardware watchdog remote configuration, remote upgrade
◆Host computer, web page data triggering, scheduled reporting, etc.