RS485 (ModBus RTU) protocol dual-probe high-frequency industrial reader/writer|reader head|sensor CK-FR102AN-A01 is a high-frequency dual-channel reader based on radio frequency identification technology, the working frequency of the reader is 13.56MHZ, Supports the reading of I-CODE 2, I-CODE SLI and other tags that conform to the ISO15693 international standard protocol format.
RS485 (ModBus RTU) protocol dual-probe high-frequency industrial reader | read-write head | sensor CK-FR102AN-A01 supports the standard industrial communication protocol ModBus RTU, which is convenient for users to integrate into PLC and other control systems. The radio frequency part of the communication protocol is integrated inside the reader. Users only need to receive data through the Ethernet interface to complete the reading operation of the tag without understanding the complex radio frequency communication protocol.
1. Hardware description
2. Description of interface terminals
3. Description of RF antenna port
RF1 is the channel 1 interface defined by the system, and RF2 is the channel 2 interface defined by the system. The user can choose to use the corresponding antenna according to the application environment. You can use only one antenna or both. RF1 is turned on by default when the device is powered on and initialized.
4. LED indicator
5. Button function description
CK-FR102AN-A01 has two buttons, namely "function/switch" and "confirm/modify". After the system enters the main interface, follow the interface prompts and press the "Function/Switch" button to enter the menu interface. In the menu interface, you can view and configure various system parameters, reset the device, and exit the menu interface. A single press of the "Confirm/Modify" button is a single modification, and a long press is a continuous progressive modification.
6. Communication wiring description
6.1 Single-machine communication wiring diagram
The A and B wires of the 485 bus are connected one to one.
6.2 Multi-machine communication wiring diagram
CK-FR102AN-A01 supports multiple readers to be mounted on the same bus at the same time for multi-machine networking. When multiple readers are mounted on the bus, in order to improve the reliability of communication, a 120Ω matching resistor needs to be connected to the front and back ends of the bus. The wiring is as follows
7. Communication cable selection
In order to improve the reliability of communication and the EMI performance of the system, users can choose shielded twisted pair as the communication cable, or choose RS485 communication dedicated cable.
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