KDC100 Programming Manual
i)
KDC100 exits waiting state if it receives any response from HOST. KDC100 replies to HOST with
sending ‘@’ for a success response.
j)
KDC100 waits for 1 second and exits waiting state with sending a ‘!’ to HOST if there is no
response from HOST.
k)
KDC100 goes to ready state.
Synchronization mode
Synchronization mode is initiated by HOST with sending a command to KDC100 to read a barcode stored in
KDC100 internal flash memory. There is no difference from HOST side handling a packet data either
Synchronization or Wedge mode. However, KDC100 sends a barcode up to 10 times repeatedly until it receives
a success response from HOST. The following is detailed steps between the HOST and KDC100.
a)
HOST configures KDC100 to send packet data
b)
HOST sends a command(‘P’ and index) to KDC100 to read stored barcode
c)
KDC100 sends a stored barcode to HOST with packet data format
d)
KDC100 goes to waiting state.
e)
HOST receives a packet data from KDC100.
f)
HOST checks if it receives a packet data without error.
g)
HOST sends a success response by sending a character ‘@’ to KDC100 or a failure response by
sending a character ‘!’.
h)
KDC100 exits waiting state with sending ‘@’ if it receives a success response and returns to ready
mode. However, if KDC100 got a failure response, it repeats to send the same barcode 10 times until
getting a success response. KDC100 sends a ‘!’ character to HOST if it couldn’t get any responses
from HOST during 1 second.
