Brooks LF80C - Page 156

Brooks Automation
144 278580 Revision A
8 Service and Troubleshooting LF80C ZeniD RFID Reader
8.4 Error Codes Product Manual
8 check
parity and/or checksum
error
wrong baud rate is set check baud rate of serial
interface (COM port)
transmission errors on
serial communication
check RS232 cable and
connectors, check disturbing
sources at RS232
9 void ackn
no valid acknowledge
(unexpected
acknowledge)
double or wrong
acknowledgment
check host communication
settings
serial communication
is interrupted
check RS232 cable and
connectors, check disturbing
sources at RS232
Ethernet communica-
tion is interrupted
check Ethernet cable and con-
nectors, check the Link LED
and the Traffic LED, verify IP
address settings
A (10) locked locked page cannot be
written
page to be written is
locked (permanently
write protected)
check page number to write,
replace tag with new one
: msg len
message too long or
too short or message is
not received completely
length of message is
longer than shown at
the length byte
check message length, check
length byte
no valid end sign of
message (end sign
0xD) detected
check syntax of message
not all characters are
transmitted
(Intercharacter
timeout)
check syntax of messages,
check RS232 or Ethernet
connection
; invalid invalid command unknown command
was sent
check syntax of command
B (11) no ackn the message which has
to be confirmed has
been sent the
maximum number of
times (RS232
maxrepeat) and has
not been confirmed by
the terminal within the
defined time frame
(see
Î
Parameter 5
(0x05))
host system does not
acknowledge the
message
check availability of the host
system (terminal), check
RS232 cables and connectors,
check Ethernet cable and
connectors, check the Connect
LED and the Traffic LED, verify
IP address settings
ID Name Description Possible cause Correcting action