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PROFINET is a real-time Ethernet standard for high-speed, deterministic communications required by a variety of industrial applications(including factory automation, process automation, and building automation); PROFINET was originally developed by Siemens as a network extension of the commonly used PROFIBUS bus technology and is now supported by PROFIBUS & PROFINET International.
In this issue, we focus on how to use Superisys ProfiNet RFID Bus Gateway to communicate with Siemens -1200 series PLC for reading/writing.
Superisys IACM-P4 series industrial gateway is an RFID controller that provides standard industrial bus protocols, supporting ProfiNet, EtherCAT, and Ethernet/IP protocols; it includes two M12 T-CODE power supply interfaces, two M12 D-CODE 4-PIN network interfaces, and four M12 A-CODE RFID read/write head interfaces; the industrial Ethernet transmission rate supports up to 100Mbps, and multiple bus modules can be cascaded to the PLC, providing powerful on-site data collection capabilities. The shell is made of lightweight and sturdy engineering plastics, with the characteristics of wide connection range, strong communication capabilities, good environmental adaptability, and high protection level.
Four RFID read/write heads can be connected at the same time for independent operation;
Support ProfiNet, EtherCAT, EtherNet/IP protocols;
IP67 protection level, can adapt to harsh working conditions such as oil, dust, moisture, etc.;
Dual network ports, integrated switch function, can form star network and tree network;
Power input with reverse connection protection and 3000W surge protection, RFID port with anti-reverse connection and overvoltage and overcurrent protection.
Hardware Architecture Introduction
The main components of the RFID architecture system are as follows:
Controller (PLC): Issues commands to control the read/write head to operate;
Gateway bus controller:
PLC communicates with the gateway bus controller to indirectly control the read/write head;
Read/write head (UHF/HF):
Gets the controller's command and executes the read/write data operation on the tag carrier;
Tag carrier (UHF/HF):
The carrier for storing data, the data storage area is divided as follows:
The high-frequency tag carrier has a UID area (usually only 8 bytes/read-only and unique), a USER area (the actual memory depending on the tag carrier type/read and write)