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Section 7
7.
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IDRW
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V700-L11
User's Manual
Section 7
Troubleshooting
If a fault should occur, first thoroughly study the symptom in order to be able to correctly judge the
reproducibility of a problem, and interaction with other associated equipment. Thus, find an appropriate
remedy.
7.1 IDRW head is directly connected to upstream
controller
7.1.1 No response (response not yet received), or, occurrence of ille-
gal characters
Check the following points.
7.1.2 Response is available (response code is other than "00")
According to the response code in response data, check the following points.
■
Error in communication with upstream controller side
■
Communications error
■
System error
Typical checkpoint
Supply voltage (5 VDC
±
5% on connector)
Cable connection (pin arrangement on the upstream controller side, wiring connection/disconnection of connection cable, etc.)
Communications protocol settings on upstream controller (Baud rate, data format)
Response code
Name
Typical checkpoint
"10"
Parity error
• Communication protocol settings on upstream controller (data format)
• Routing of RS-232C cable (adverse effect by external noise interference)
• Noise environment on power line of IDRW head
"11"
Framing error
"12"
Overrun error
"14"
Format error
• Command format
(type and number of characters, number of pages, inter-command spacing,
etc.)
"18"
Frame length error
Response code
Name
Typical checkpoint
"70"
Communications error
• Mounting distance between ID tag and IDRW head(s)
• Noise environment around IDRW head (correct the location of head)
• Spacing to another IDRW head
"71"
Verify error
• Life of ID tag in terms of number of rewrite operations (100,000 cycles)
"72"
ID tag missing error
• Mounting distance between ID tag and IDRW head(s)
• Spacing to another IDRW head
"7A"
Address designation error
• Wrong page, or address/number of bytes with executed command
"7B"
Out of write area error
• Mounting distance between ID tag and IDRW head(s)
"7E"
ID system error (1)
• Operating environment of tag (damaged ID tag by misoperation or misuse)
• Model and specifications of ID tag used
"7F"
ID system error (2)
Response code
Name
Typical checkpoint
"7C"
Antenna hardware error
• (The equipment may have been damaged.)