1. 485/232 data medium and short-distance wireless transmission, no need to insert a card, no operating cost
2. As the standard modbus RTU protocol is adopted, there is no need to write communication programs when programming the PLC.
3. Safe, reliable and stable 433MHZ industrial design
4. Support I/O acquisition control of modbus protocol, analog input
5. Support point-to-point, point-to-multipoint application mode
2. Product descriptionWD1433 wireless transmission terminal is a wireless transmission terminal designed by Xiamen Wutong Bolian for industrial users. It not only supports 485 or 232 wireless data transmission; but also has 2 digital outputs and 2 digital inputs. 2 channels of analog input, using MODBUS RTU protocol to realize I/O acquisition and control.
WD1433 uses the 433MHZ wireless frequency band to communicate, which can achieve the transmission of industrial data within a distance of 1500 meters. 433MHZ wireless can be used to replace the traditional wired RS485 and RS232 transmission methods, and it can be directly connected to various configuration software. And industry application software, and PLC, DCS, industrial instrumentation, sensor, touch screen and other equipment connected to form an industrial automation measurement and control system.
It adopts full industrial-grade chip and device design, working temperature can reach -30℃~85℃, supports 5V~35V ultra-wide voltage, compact design, and light weight. It adopts integral installation pendant and industrial terminal wiring method, which is convenient for on-site installation and construction. The product supports configuration tool configuration, which is flexible and changeable. In addition, the product adopts multi-level protection circuit and watchdog technology to realize real-time, stable and reliable transmission of the equipment in harsh environments all-weather.
Three, application modeWD1433 wireless data transmission terminal is very suitable for short-distance wireless transmission and I/O acquisition control in industrial applications. It is suitable for operation in harsh environments underground and serial port applications that are not suitable for wiring. Wireless 485 and wireless 232 replace wired The method greatly facilitates the deployment and construction of on-site machines and terminals. At the same time, WD1433 has the functions of I/O acquisition and control, which can be easily connected to various sensors, so as to achieve the integration of transmission, acquisition and control. WD1433 is widely used in power plants, steel mills, docks, coal mines, open-pit quarries, oil field drilling, digital factories and other industrial occasions, with strong anti-interference ability and stable performance.
A. Point-to-point application mode
Point-to-point transmission is the most commonly used mode. The application of wireless serial ports (232 or 485) through two WD1433 can be realized between two PLCs within a distance of 1.5KM, and between a PLC and a touch screen. , Data transmission and I/O acquisition between a PLC and a PC, and between two other terminals.
WD1433 has the functions of analog quantity acquisition, digital quantity acquisition and digital quantity control, which can directly replace PLC to realize wireless I/O acquisition and control in some applications, which is not only easy to construct but also cost-saving.
B. Relay application mode
Relay transmission mainly uses one or more WD1433 as a relay to extend the distance of wireless transmission, thereby achieving wireless data transmission above 1.5KM.
C. Point-to-multipoint application mode
Point-to-multipoint is also a common application mode of industrial collection. There are multiple collection points in the field that need to aggregate data to a control or server. The industrial field generally adopts the Modbus transmission protocol to obtain the data of each node and control each node through polling; or each node actively reports the collected data to the master node for processing, storage and transmission.
1. Industrial data acquisition and industrial control (industrial instruments, meters, industrial terminals)
2. Digital factory, digital production line (data transmission between PLC and PLC, PLC and touch screen)
3. Meteorological data monitoring and release
4. Wireless LED publishing system
5. Power temperature and humidity acquisition and power status monitoring
6. Wireless meter reading, wireless sensor short-distance data transmission
7. Robot control
8. Building and residential (smart home) control
9. Other occasions for wireless 485 or 232 transmission
10. Wireless I/O transparent transmission occasions
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