User's Manual

Table Of Contents
Product Manual - RFID Reader UF80 55
Chapter 7
Operation
H - Heartbeat The H command can be used to query the serial number of the device.
The response code is not required for the individual device. This code is always
"0000".
Example:
15.09.2011 09:47:31 Info: Send Message: H0
15.09.2011 09:47:31 Info: Message Stream Sent: 53 30 32 48 30 0D
15.09.2011 09:47:31 Info: Message Stream Received: 53 30 41 68 30 31 32 33
34 30 30 30 30 0D
15.09.2011 09:47:31 Info: Received Message: h012340000
Host reader
CMD Reader ID
H1 byte
Reader host
CMD Reader ID Serial number Response code
h 1 byte 4 bytes 4 bytes