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Revision number: 1.01
Modbus registers
ADDRESS
BYTE
DEFAULT VALUE
High
Low
0x0000
High
0x0001
Low
High
0x0002
Low
High
0x0003
Low
High
0x0004
Low
High
0x0005
Low
High
0x0006
Low
High
0x0007
Low
High
0x0008
Low
High
0x0009
Low
High
0x000A
Low
High
0x000B
Low
High
0x000C
Low
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VRD-485 RFID READER WITH RS-485 INTERFACE
ALLOWED VALUES
0x01
0x00 ... 0xFF
0x03
0x00 ... 0xFF
0x00
-
0x00
0x00 ... 0xFF
0x00
0x00
0x00 ... 0xFF
0x00
0x00
0x00
0x00
0x00 ... 0xFF
0x00
0x00
0x00
0x00
0x00
0x00 ... 0xFF
0x00
0x00
0x00
0x00
0x00
0x00 ... 0xFF
0x00
0x00
0x00
0x00
-
0x00
0x00 ... 0xFF
0x00
-
Review date: 1 December, 2021
DESCRIPTION
Reader address
8/9 bits:
- 0x0X: 8 bits, none parity
- 0x1X: 8 bits, even parity
- 0x2X: 8 bits, odd parity
Baud rate:
- 0xX0: 2400 baud
- 0xX1: 4800 baud
- 0xX2: 9600 baud
- 0xX3: 19200 baud
- 0xX4: 38400 baud
- 0xX5: 57600 baud
- 0xX6: 115200 baud
Not used
Code of RFID identifier manufacturer
Code of RFID identifier
Red LED
Initial state: 1 – ON, 0 - OFF
Duration of state x 10 ms
Last state: 1 – ON, 0 – OFF
Duration of state x 10 ms
Number of cycles for value change
Green LED
Initial state: 1 – ON, 0 - OFF
Duration of state x 10 ms
Last state: 1 – ON, 0 – OFF
Duration of state x 10 ms
Number of cycles for value change
Buzzer
Initial state: 1 – ON, 0 - OFF
Duration of state x 10 ms
Last state: 1 – ON, 0 – OFF
Duration of state x 10 ms
Number of cycles for value change
Not used
Response delay in RS-485 interface in 100 μs
intervals
Not used
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