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Section 7 Message Details
RFID System
User's Manual
(Modbus TCP)
Section 7
Host Communications Specifications
GET COMMUNICATIONS DIAGNOSTIC INFORMATION
This query gets the most recent communications diagnostic information.
The communications diagnostic information is not returned if communication diagnostic is disabled.
Query Format
Response Format
Normal Response
Parameter Description
Register address The register address (CA00 hex) that specifies reading the communication diagnostic information
Word count The number of words in the communication diagnostic setting to read (000E hex)
Parameter Description
Byte count The number of bytes in the communication diagnostic information that was read (1C hex)
Communications diagnostic
information
The information will be all zeros if communication diagnostic is enabled and there are no
communications diagnostic results.
The information will be all zeros if communication diagnostic is disabled.
Operating time Contains the system operating time for communication diagnostic in 8-digit hexadecimal.
00000000 to FFFFFFFF hex (unit: ms)
Query type Contains the query type for communication diagnostic in 4-digits hexadecimal.
0001 hex : READ ID
0002 hex : READ DATA
0003 hex : WRITE DATA
0004 hex : LOCK
0005 hex : DATA FILL
0006 hex : RF TAG OVERWRITE COUNT CONTROL
0007 hex : RESTORE DATA
0008 hex : COPY DATA
Communications
result
Contains the error code for communication diagnostic in 4-digits hexadecimal.
(This is the upper word of the end code in response to the RF Tag communications query.)
0000 hex : Normal end
0003 hex : Communications precaution
2001 hex : RF Tag missing error
2002 hex : RF Tag communications error
2003 hex : Tag ID mismatch error
2004 hex : RF Tag address error
2005 hex : RF Tag lock error
2006 hex : RF Tag verification error
2007 hex : RF Tag data lost error
2008 hex : RF Tag system error
2009 hex : RF Tag overwriting error
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Byte 9 Byte 10 Byte 11
Transaction
identifier
Protocol identifier Field length
Unit
identifier
Function code Register address Word count
X X 0000 hex 0006 hex FF hex 03 hex CA00 hex 000E hex
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Byte 9
···
Byte 36
Transaction
identifier
Protocol identifier Field length
Unit
identifier
Function
code
Byte count Communications diagnostic information
X X 0000 hex 001F hex FF hex 03 hex 1C hex (28 bytes)
Byte 9 ··· Byte 12 Byte 13 Byte 14 Byte 15 Byte 16 Byte 17 Byte 18 Byte 19 Byte 20 Byte 21 Byte 22 Byte 23 Byte 24 Byte 25 Byte 26 Byte 27 ··· Byte 34 Byte 35 Byte 36
Operating time Query type
Communications
result
Diagnostic result Send power level
Receive power
level
Noise level Power level Tag ID data (Reserved)
4 bytes 2 bytes 2 bytes 2 bytes 2 bytes 2 bytes 2 bytes 2 bytes 8 bytes 2 bytes
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