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TechnoTrade VRD-485 Technical Manual page 12

Rfid reader with rs-485 interface

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Revision number: 1.01
Command 10 'Write Multiple Registers'
This command is recommended for setting the indication and zeroing the RFID identifier value.
Request:
Request code
Register start number
Quantity of registers
Quantity of data bytes
Values
Response:
Response code
Register start number
Quantity of registers
Response in case of the request error:
Response code
1 byte
Error code
1 byte
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VRD-485 RFID READER WITH RS-485 INTERFACE
1 byte
2 bytes
2 bytes
1 byte
16 bytes
1 byte
2 bytes
2 bytes
0x90
0x02 – start register number is more than 0x000B
0x03 – quantity of requested registers is bigger than memory bounds 0x000B
Review date: 1 December, 2021
0x10
0x0000 ... 0x000B
0x0001 ... 0x000B
0x0002 ... 0x0016
0x10
0x0000 ... 0x000B
0x0001 ... 0x000B
page 12 from 13

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