Omron V780 Series User Manual page 288

7 Modbus/TCP Communications
GET COMMUNICATIONS DIAGNOSTIC INFORMATION
 Function
This command gets the most recent communications diagnostic information.
 Command Format
Byte-0 Byte-1
Transaction identi-
fier
X X
Parameter
Register address
Word count
 Response Formats
• Normal Response
Byte-0 Byte-1
Transaction identi-
fier
X X
Byte-9 ... Byte-88
Most recent communications
diagnostic information
92 bytes
Byte-9 ... Byte-12
Time information
4 bytes
Byte-21 Byte-22
Reserved 1
2 bytes
Byte-31 Byte-32
Noise level
2 bytes
7 - 136
Byte-2 Byte-3 Byte-4
Protocol identifier Field length
0000 hex 0006 hex
The register address (DC00 hex) for reading the communications diagnostic infor-
mation
The number of words in the communications diagnostic information to read (002E
hex)
Byte-2 Byte-3 Byte-4
Protocol identifier Field length
0000 hex 005F hex
Byte-13 Byte-14 Byte-15
Communications diagnostic information
Command code
2 bytes
Byte-23 Byte-24 Byte-25
Communications diagnostic information
Reserved 2
2 bytes
Byte-33 Byte-34 Byte-35 Byte-36
Communications diagnostic information
Target level Reserved 3
2 bytes 2 bytes
Byte-5 Byte-6 Byte-7
Unit Function
identifier code
FF hex 03 hex
Description
Byte-5 Byte-6 Byte-7
Unit Function
identifier code
FF hex 03 hex
Byte-16 Byte-17 Byte-18
Error code Diagnostic results
2 bytes 2 bytes
Byte-26 Byte-27
Channel used Communications speed
2 bytes 2 bytes
Byte-37 Byte-38 Byte-39
Stored PC
2 bytes
UHF RFID System V780-series Reader/Writer User's Manual (Z389)
Byte-8 Byte-9 Byte-10 Byte-11
Register address Word count
DC00 hex 002E hex
Byte-8
Byte
count
5C hex
Byte-19 Byte-20
Detailed diagnos-
tic results
2 bytes
Byte-28 Byte-29 Byte-30
Reception level
2 bytes
... Byte-100
UII (EPC code)
62 bytes