Industrial-grade UHF card reader|reader|reader head CK-UR08-A01 is a UHF UHF card reader based on RS485, MODBUS communication protocol, working frequency of 13.56MHZ, can support multiple reading The card device is connected to the network, and at most multiple CK-UR08-A01 can be mounted on the bus at the same time.
Figure 1 External electrical diagram of the card reader
1 Card reader cable connector--M12, A-coded, 5 PIN male
2 Power indicator/Update indicator
3 RFID status indicator
4 Shell ground terminal
Industrial-grade UHF card reader|reader|reader head CK-UR08-A01 LED indicator light:
The LED indicator related instructions are as follows:
Table 1 Indicator status description
| Indicator light |
colour |
status |
Instruction content |
| Power indicator/update indicator |
Green light |
Chang Liang |
Connected to the power supply, the card reader is working |
| Flashing |
Firmware update |
||
| RFID status indicator |
Green light |
Chang Liang |
Valid RFID tag detected |
Industrial UHF reader | reader | head CK-UR08-A01 of the wiring instructions:
The CK-UR08-A01 wiring terminal is defined as follows:
Figure 2 CK-UR08-A01 wiring terminal definition
CK-UR08-A01:
Table 2. CK-UR08-A01 terminal description
| Terminal number |
interface |
Description |
| 1 |
VCC |
Card reader power supply 24V |
| 2 |
A |
RS485 communication port A line |
| 3 |
GND |
Reader 0V |
| 4 |
B |
RS485 communication port B line |
Industrial-grade UHF card reader|reader|reader head CK-UR08-A01and PLC networking:
When CK-UR08-A01 is working in stand - alone mode, the wiring is as follows:
Figure 3 CK-UR08-A01 stand-alone communication
Industrial UHF reader | reader | head CK-UR08-A01 multiprocessor communication wiring diagram
CK-UR08-A01 supports multiple card readers to be mounted on the same bus at the same time for multi-machine networking. When multiple card 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:
Figure 4 CK-UR08-A01 multi-machine communication
Industrial UHF reader | reader | head CK-UR08-A01 Communication Cable Select
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.
Industrial UHF reader | reader | head CK-UR08-A01 communication distance relationship between the baud rate
When using 0.56mm (24AWG) twisted pair wiring, according to the different baud rate, the theoretical value of the maximum transmission distance is as follows:
Table 3 Relationship between baud rate and communication distance
| Baud rate |
Maximum transmission distance |
| 4800Bps |
1200 meters |
| 9600Bps |
800 meters |
| 19200Bps |
600 meters |
For more about RS485 industrial-grade UHF card reader|reader|reader head CK-UR08-A01 and PLC networking and multi-machine communication wiring diagram instructions, Huaxiang Tiancheng Technology welcomes your communication!