FingerVein Online
Installation and Programming Manual
Page
53 of 69
Function: it encapsulates instruction frames in GCR format (Kreta-Classic format).
These GCR instructions allow you to address the DB and UI modules separately and to
implement the different FingerVein sensor identification functions (see
for further details).
9.6. Error Codes
FingerVein Online electronics can also respond to any of the instructions it is sent with
one of the following codes:
• OpCode
0xFD: Frame Delay
(resend later).
• OpCode
0xFE: Frame Error
(badly-composed frame or argument out of range).
• OpCode
0xFF: Instruction Error
( invalid OpCode).
Response
OP
0xBD
NA
0x0005 or above
ARG
See
