Section 7 Modbus Communications Protocol
Section 7
Host Communications Specifications
169
RFID System
User's Manual
(Modbus TCP)
 Reader/Writer Operation Errors
 System Errors
RF Tag data lost error 2007 hex Processing to write data to the RF Tag did not end normally.
(Data may have been lost and must be restored.)
RF Tag system error 2008 hex The RF Tag returned an error response.
RF Tag overwriting error 2009 hex The overwrite limit was exceeded for overwrite count control processing.
Reader/Writer connection error 200A hex When copying data, communications could not be established with the
copy destination Reader/Writer.
Communications connection
error between Reader/Writers
200B hex When executing Multi-Reader/Writer functions, communications could
not be established with a Slave Reader/Writer.
Error code name Error code Description
Unfixed operation mode error 8001 hex The control signal was not stable when the Reader/Writer was started. A
record is recorded only in the system error log.
User setting error 8002 hex An error was detected in user configuration memory when the Reader/
Writer was started. A record is recorded only in the system error log.
The Attached information1, representing the erroneous classification
settings.
00000001 hex: Network settings
00000002 hex: RF Tag communication settings
Multi-Reader/Writer execution
error
8003 hex A set value was detected at startup that prevents execution of the Multi-
Reader/Writer Mode.
The reason for the error is given in attached information 1.
00000001 hex: The combination of the Multi-Reader/Writer Mode and
the communications option prevented execution.
00000002 hex: A Slave Reader/Writer has the same IP address as the
Master Reader/Writer.
Error code name Error code Description
System startup errors
System memory error F001 hex An error was detected in system memory. A record is recorded only in
the system error log.
Profile error F002 hex An error was detected in the profile data. A record is recorded only in the
system error log.
Hardware fault
IC error F011 hex An error was detected in an IC in the Reader/Writer.
Configuration memory
error
F012 hex An error was detected when accessing configuration memory.
Error code name Error code Description
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