Omron V680-CA5D01-V2 User Manual page 245

SECTION 6
Troubleshooting
V600 Commands
Communications Errors
Type
Host commu-
nications
error
Tag commu-
nications
error
•
Host communications errors are those that occur during communications between the host device and ID
Controller.
•
Tag communications errors are those that occur during communications between the ID Controller,
Antennas, and Tags.
• The error details are all logged in the ID Controller memory and the error codes are displayed on the monitor
display. Error data can be read using the READ ERROR INFORMATION (CF) command.
Note1. If a Tag communications error (error code 70), mismatch error (error code 71), or copy error (error
code 76) occurs when a write command is executed, some or all of the data in the target addresses
may have been overwritten. Overwritten data is not limited to data in the WRITE command. If an error
(error code 70 or 71) or copy error (error code 76) occurs when a write command is executed, keep
retrying the command from the host device until an error no longer occurs. Data at other addresses
(i.e., not at the write addresses) is not affected.
2. An Amplifier error (error code 7C) will occur if an Amplifier is not connected to the ID Controller when
using an Antenna with a Separate Amplifier. A Tag missing error (error code 72) will occur if the
Antenna is not connected to the Amplifier.
3. If the Tag moves out of the communications area while a write command is being executed, all of the
Tag data may not be written and a Tag communications error (error code 70) will occur.
Warning
code
76
• This warning data is not stored in the ID Controller memory.
RFID System
242
User's Manual
Error
Name
code
10 Parity error
11 Framing error
12 Overrun error
13 FCS error
14 Command input error
18 Frame length error
70 Communications error
71 Mismatch error
72 Tag missing error
76 Copy error
7A Address designation error
7C Antenna error
7D Write protection error
Name
Tag overwrite count exceeded
Tag memory check error
Communications error between host device and ID Controller
• Incorrect communications format settings
• Malfunction due to noise
Incorrect calculation of FCS
Incorrect command format
The number of characters per command frame exceeds the specified
value.
There is an error in communications between Antennas and Tags.
• Installation problem, e.g., travel speed through communications area or
distance
• Malfunction due to an obstruction.
Write has not been processed correctly.
No Tag in communications area when read/write was executed.
Copy has not been processed correctly.
An address outside the Tag memory area has been designated.
The area start address has not been correctly designated when using the
MDS/MDL command.
Antenna has not been connected.
A write-protected area was specified for a write command.
Overwrite count exceeded warning for the OVER-
WRITE COUNT CONTROL (MDS/MDL) command
Memory error detection warning for the DATA CHECK
(MDC) command
Details
Details