The use of PLC in the equipment is more and more extensive, and it is necessary to exchange data when the modules with communication functions in the equipment, such as PC, instrument, controller, etc., need to be exchanged, and various manufacturers have their own words in the communication protocol. Although there are standard protocol types, there are many custom protocols. How to convert various types of protocols into a standard communication port protocol is the value generated by communication converters.
Features:
The communication converter can convert various types of free port protocols into the standard Modbus_RTU protocol, and communicate with standard products such as PLC and touch screen. At the same time, the standard Modbus_RTU protocol can be converted into a free protocol corresponding to other devices, and the function is realized. It all depends on the software program;
The communication converter can convert the external I/O input into the standard Modbus_RTU protocol, upload it to the standard protocol products such as PLC and touch screen, and also convert the standard Modbus_RTU protocol into I/O output, so that the PLC, touch screen and other standards The device can control the on-off and real-time display functions of the external device. The realization of the function depends entirely on the software program;
Instructions for use:
The board can be configured to convert the address through the PC, as shown in the figure.
Due to the difference between the reading mode of the touch screen and the configuration software, different reading addresses are set according to different forms, so that the adaptation range is wider, and after the configuration is completed, it is saved to the on-chip EEPROM, and has a power-off storage function, and the board design can be Connected to a freely protocol device or instrument, converts the free protocol to Modbus_RTU protocol and uploads it to a standard Modbus_RTU device such as PLC or touch screen, and then displays or processes the corresponding data; at the same time, the device with the standard protocol can also pass the standard The Modbus_RTU protocol is sent to the board. The board sends the corresponding free protocol or sets the corresponding I/O device according to the program settings by determining the set address, and achieves the function of peer-to-peer communication.
