FingerVein Online
Installation and Programming Manual
Page
48 of 69
9.5.17. Multiread filter status
Function: It allows for the status of the card reader to be questioned to confirm whether
there is a card in the field that it is being filtered in multiread mode. If there is no card in
the reader field, it will return just one argument byte.
The reader code may be made up of decimal ASCII characters (from ‘0’ to ‘9’) or
ASCII-Hex (from ‘0’ to ‘9’ and from ‘A’ to ‘F’) characters. It may also include an
indicative prefix of the reader to have read the card (see
).
9.5.18. Card Reading
Function: It returns the code read by the card reader. It may be made up of decimal
ASCII characters (from ‘0’ to ‘9’) or ASCII-Hex (from ‘0’ to ‘9’ and from ‘A’ to ‘F’)
Instruction
OP
0x61
NA
0x0001
ARG
Byte 1:
0: Status of UART_0 (only if it is configured as serial reader)
1: Status of UART_1 (only if it is configured as serial reader)
2: Status of TTL_0
3: Status of TTL_1
Response
OP
0x61
NA
0x0001 or >0x0001
ARG
Byte 1: port from which the status is announced
Bytes 2 to <NA>: Code of the present card
Event
OP
0x81
NA
0x0000 (erroneous reading)
> 0x0000 (correct reading)
ARG
Bytes 1 to <NA>: Code of the read card
